strrat | e4bc1b6f2e541e90a1ed736284d2e383fcb739f10466b1fdd390211e01ed4dae

Resubmissions

21-06-2024 17:49

240621-wea82ayeph 10

09-06-2024 09:22

240609-lb4fasgf3w 10

Analysis

max time kernel
146s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
09-06-2024 09:22

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General

Target

e4bc1b6f2e541e90a1ed736284d2e383fcb739f10466b1fdd390211e01ed4dae.jar
Size

123KB
MD5

6a6bcf5dbe9ee0e68969958ca3565122
SHA1

c515cd6309bdff8f1b7b996f0846eae3ea27b768
SHA256

e4bc1b6f2e541e90a1ed736284d2e383fcb739f10466b1fdd390211e01ed4dae
SHA512

2dc5021ce4e033a1ae67ec2905b3acb7b237c3a00bebe54b030f461675ceb570e738743348a889ea3400b7d01e6261edb5d835c4759914960ae29cbba98a00a6
SSDEEP

3072:4+1ksmuRo+BmpH7Rx/inqhzlE0EP5vdRGXVIJeouw:2sHbmpRgnqhzPEP5vbGXiuw

Score

10^/10

strrat discovery execution persistence stealer trojan

Malware Config

Signatures

STRRAT
STRRAT is a remote access tool than can steal credentials and log keystrokes.
trojan stealer strrat
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

wscript.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation wscript.exe
Drops startup file 1 IoCs

Processes:

java.exe

description ioc process

File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\aenqqlavm.txt java.exe
Loads dropped DLL 2 IoCs

Processes:

java.exejava.exe

pid process

2672 java.exe
4924 java.exe
Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

4656 icacls.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation	wscript.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\aenqqlavm.txt	java.exe

pid	process
2672	java.exe
4924	java.exe

pid	process
4656	icacls.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

java.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\aenqqlavm = "\"C:\\Users\\Admin\\AppData\\Roaming\\aenqqlavm.txt\""	java.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\aenqqlavm = "\"C:\\Users\\Admin\\AppData\\Roaming\\aenqqlavm.txt\""	java.exe

Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

32 ip-api.com
Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exe

pid process

4700 schtasks.exe

flow	ioc
32	ip-api.com

pid	process
4700	schtasks.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

WMIC.exeWMIC.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	4240	WMIC.exe
Token: SeSecurityPrivilege	4240	WMIC.exe
Token: SeTakeOwnershipPrivilege	4240	WMIC.exe
Token: SeLoadDriverPrivilege	4240	WMIC.exe
Token: SeSystemProfilePrivilege	4240	WMIC.exe
Token: SeSystemtimePrivilege	4240	WMIC.exe
Token: SeProfSingleProcessPrivilege	4240	WMIC.exe
Token: SeIncBasePriorityPrivilege	4240	WMIC.exe
Token: SeCreatePagefilePrivilege	4240	WMIC.exe
Token: SeBackupPrivilege	4240	WMIC.exe
Token: SeRestorePrivilege	4240	WMIC.exe
Token: SeShutdownPrivilege	4240	WMIC.exe
Token: SeDebugPrivilege	4240	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4240	WMIC.exe
Token: SeRemoteShutdownPrivilege	4240	WMIC.exe
Token: SeUndockPrivilege	4240	WMIC.exe
Token: SeManageVolumePrivilege	4240	WMIC.exe
Token: 33	4240	WMIC.exe
Token: 34	4240	WMIC.exe
Token: 35	4240	WMIC.exe
Token: 36	4240	WMIC.exe
Token: SeIncreaseQuotaPrivilege	4240	WMIC.exe
Token: SeSecurityPrivilege	4240	WMIC.exe
Token: SeTakeOwnershipPrivilege	4240	WMIC.exe
Token: SeLoadDriverPrivilege	4240	WMIC.exe
Token: SeSystemProfilePrivilege	4240	WMIC.exe
Token: SeSystemtimePrivilege	4240	WMIC.exe
Token: SeProfSingleProcessPrivilege	4240	WMIC.exe
Token: SeIncBasePriorityPrivilege	4240	WMIC.exe
Token: SeCreatePagefilePrivilege	4240	WMIC.exe
Token: SeBackupPrivilege	4240	WMIC.exe
Token: SeRestorePrivilege	4240	WMIC.exe
Token: SeShutdownPrivilege	4240	WMIC.exe
Token: SeDebugPrivilege	4240	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4240	WMIC.exe
Token: SeRemoteShutdownPrivilege	4240	WMIC.exe
Token: SeUndockPrivilege	4240	WMIC.exe
Token: SeManageVolumePrivilege	4240	WMIC.exe
Token: 33	4240	WMIC.exe
Token: 34	4240	WMIC.exe
Token: 35	4240	WMIC.exe
Token: 36	4240	WMIC.exe
Token: SeIncreaseQuotaPrivilege	4348	WMIC.exe
Token: SeSecurityPrivilege	4348	WMIC.exe
Token: SeTakeOwnershipPrivilege	4348	WMIC.exe
Token: SeLoadDriverPrivilege	4348	WMIC.exe
Token: SeSystemProfilePrivilege	4348	WMIC.exe
Token: SeSystemtimePrivilege	4348	WMIC.exe
Token: SeProfSingleProcessPrivilege	4348	WMIC.exe
Token: SeIncBasePriorityPrivilege	4348	WMIC.exe
Token: SeCreatePagefilePrivilege	4348	WMIC.exe
Token: SeBackupPrivilege	4348	WMIC.exe
Token: SeRestorePrivilege	4348	WMIC.exe
Token: SeShutdownPrivilege	4348	WMIC.exe
Token: SeDebugPrivilege	4348	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4348	WMIC.exe
Token: SeRemoteShutdownPrivilege	4348	WMIC.exe
Token: SeUndockPrivilege	4348	WMIC.exe
Token: SeManageVolumePrivilege	4348	WMIC.exe
Token: 33	4348	WMIC.exe
Token: 34	4348	WMIC.exe
Token: 35	4348	WMIC.exe
Token: 36	4348	WMIC.exe
Token: SeIncreaseQuotaPrivilege	4348	WMIC.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

java.exewscript.exejavaw.exejava.execmd.exejava.execmd.execmd.execmd.execmd.exe

description	pid	process	target process
PID 4988 wrote to memory of 4656	4988	java.exe	icacls.exe
PID 4988 wrote to memory of 4656	4988	java.exe	icacls.exe
PID 4988 wrote to memory of 1360	4988	java.exe	wscript.exe
PID 4988 wrote to memory of 1360	4988	java.exe	wscript.exe
PID 1360 wrote to memory of 3824	1360	wscript.exe	javaw.exe
PID 1360 wrote to memory of 3824	1360	wscript.exe	javaw.exe
PID 3824 wrote to memory of 2672	3824	javaw.exe	java.exe
PID 3824 wrote to memory of 2672	3824	javaw.exe	java.exe
PID 2672 wrote to memory of 4476	2672	java.exe	cmd.exe
PID 2672 wrote to memory of 4476	2672	java.exe	cmd.exe
PID 2672 wrote to memory of 4924	2672	java.exe	java.exe
PID 2672 wrote to memory of 4924	2672	java.exe	java.exe
PID 4476 wrote to memory of 4700	4476	cmd.exe	schtasks.exe
PID 4476 wrote to memory of 4700	4476	cmd.exe	schtasks.exe
PID 4924 wrote to memory of 4752	4924	java.exe	cmd.exe
PID 4924 wrote to memory of 4752	4924	java.exe	cmd.exe
PID 4752 wrote to memory of 4240	4752	cmd.exe	WMIC.exe
PID 4752 wrote to memory of 4240	4752	cmd.exe	WMIC.exe
PID 4924 wrote to memory of 3260	4924	java.exe	cmd.exe
PID 4924 wrote to memory of 3260	4924	java.exe	cmd.exe
PID 3260 wrote to memory of 4348	3260	cmd.exe	WMIC.exe
PID 3260 wrote to memory of 4348	3260	cmd.exe	WMIC.exe
PID 4924 wrote to memory of 5036	4924	java.exe	cmd.exe
PID 4924 wrote to memory of 5036	4924	java.exe	cmd.exe
PID 5036 wrote to memory of 4104	5036	cmd.exe	WMIC.exe
PID 5036 wrote to memory of 4104	5036	cmd.exe	WMIC.exe
PID 4924 wrote to memory of 3708	4924	java.exe	cmd.exe
PID 4924 wrote to memory of 3708	4924	java.exe	cmd.exe
PID 3708 wrote to memory of 4028	3708	cmd.exe	WMIC.exe
PID 3708 wrote to memory of 4028	3708	cmd.exe	WMIC.exe

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\e4bc1b6f2e541e90a1ed736284d2e383fcb739f10466b1fdd390211e01ed4dae.jar
1⤵
- Suspicious use of WriteProcessMemory
PID:4988

C:\Windows\system32\icacls.exe
C:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M
2⤵
- Modifies file permissions
PID:4656

C:\Windows\SYSTEM32\wscript.exe
wscript C:\Users\Admin\pzsjuirnnn.js
2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1360

C:\Program Files\Java\jre-1.8\bin\javaw.exe
"C:\Program Files\Java\jre-1.8\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\aenqqlavm.txt"
3⤵
- Suspicious use of WriteProcessMemory
PID:3824

C:\Program Files\Java\jre-1.8\bin\java.exe
"C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\aenqqlavm.txt"
4⤵
- Drops startup file
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2672

C:\Windows\SYSTEM32\cmd.exe
cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\aenqqlavm.txt"
5⤵
- Suspicious use of WriteProcessMemory
PID:4476

C:\Windows\system32\schtasks.exe
schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\aenqqlavm.txt"
6⤵
- Creates scheduled task(s)
PID:4700

C:\Program Files\Java\jre-1.8\bin\java.exe
"C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\aenqqlavm.txt"
5⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:4924

C:\Windows\SYSTEM32\cmd.exe
cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list"
6⤵
- Suspicious use of WriteProcessMemory
PID:4752

C:\Windows\System32\Wbem\WMIC.exe
wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
7⤵
- Suspicious use of AdjustPrivilegeToken
PID:4240

C:\Windows\SYSTEM32\cmd.exe
cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list"
6⤵
- Suspicious use of WriteProcessMemory
PID:3260

C:\Windows\System32\Wbem\WMIC.exe
wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list
7⤵
- Suspicious use of AdjustPrivilegeToken
PID:4348

C:\Windows\SYSTEM32\cmd.exe
cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list"
6⤵
- Suspicious use of WriteProcessMemory
PID:5036

C:\Windows\System32\Wbem\WMIC.exe
wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
7⤵
PID:4104

C:\Windows\SYSTEM32\cmd.exe
cmd.exe /c "wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list"
6⤵
- Suspicious use of WriteProcessMemory
PID:3708

C:\Windows\System32\Wbem\WMIC.exe
wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list
7⤵
PID:4028

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4152,i,6166776566165096562,4582328833313060853,262144 --variations-seed-version --mojo-platform-channel-handle=4172 /prefetch:8
1⤵
PID:5060

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
Filesize
46B

MD5
2b7b1dce4e1a870bb46876a5d1135b2e

SHA1
7a48d5cb745348d3126fefe925defc8f488479a5

SHA256
3c4c02a63977cfaf7e104213649ba68b3fea002968f2ea95a9ca6afc0bad794d

SHA512
772da32f6bce839b5ad1cc301ab7cd0a7240a91a1bc51ead86d96da14ac5fca7b200a134a4ee1ec21f15dfb1b2ef902fba0a9f28711b22177508e142a4899af9

Download Submit
C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
Filesize
46B

MD5
bc70a19c1c21aa2c81e6865852929680

SHA1
2e0696cee925f32841e86397b5b7003d15535464

SHA256
378c1e406a39252af1172ca174cda9e2d16c49ab4834435542e7f1a2d144ab10

SHA512
41fce16ae06b061c5c5a7fd46f4dcfe7ecee18e3f342d5984322120550a5ef66228b090f419198160b06ec5d50ba54ba0f69e6be89a3efcc0ceb2ae6ae88df86

Download Submit
C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna1395007717244318622.dll
Filesize
241KB

MD5
e02979ecd43bcc9061eb2b494ab5af50

SHA1
3122ac0e751660f646c73b10c4f79685aa65c545

SHA256
a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

SHA512
1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-1181767204-2009306918-3718769404-1000\83aa4cc77f591dfc2374580bbd95f6ba_d2547453-e731-4fdf-8f92-95f955a44aca
Filesize
45B

MD5
c8366ae350e7019aefc9d1e6e6a498c6

SHA1
5731d8a3e6568a5f2dfbbc87e3db9637df280b61

SHA256
11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238

SHA512
33c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd

Download Submit
C:\Users\Admin\AppData\Roaming\aenqqlavm.txt
Filesize
92KB

MD5
40324e4190ca694d65c17b8142490c1e

SHA1
14f8a7fbd6580cc1146a04af95c37b6772bb5215

SHA256
943a982c65ebf476f6f454a95e4f8105f6c89d3e90d638113f718a208aa51db0

SHA512
885107f66e0441f1d14ae4f193bcacea831f46872ec74501d82f29af7e51731714acf8a63fce72dac557c20c6cd15d1e77734e3fa443bc28dd3cda5aca22f5b7

Download Submit
C:\Users\Admin\lib\jna-5.5.0.jar
Filesize
1.4MB

MD5
acfb5b5fd9ee10bf69497792fd469f85

SHA1
0e0845217c4907822403912ad6828d8e0b256208

SHA256
b308faebfe4ed409de8410e0a632d164b2126b035f6eacff968d3908cafb4d9e

SHA512
e52575f58a195ceb3bd16b9740eadf5bc5b1d4d63c0734e8e5fd1d1776aa2d068d2e4c7173b83803f95f72c0a6759ae1c9b65773c734250d4cfcdf47a19f82aa

Download Submit
C:\Users\Admin\lib\jna-platform-5.5.0.jar
Filesize
2.6MB

MD5
2f4a99c2758e72ee2b59a73586a2322f

SHA1
af38e7c4d0fc73c23ecd785443705bfdee5b90bf

SHA256
24d81621f82ac29fcdd9a74116031f5907a2343158e616f4573bbfa2434ae0d5

SHA512
b860459a0d3bf7ccb600a03aa1d2ac0358619ee89b2b96ed723541e182b6fdab53aefef7992acb4e03fca67aa47cbe3907b1e6060a60b57ed96c4e00c35c7494

Download Submit
C:\Users\Admin\lib\sqlite-jdbc-3.14.2.1.jar
Filesize
4.1MB

MD5
b33387e15ab150a7bf560abdc73c3bec

SHA1
66b8075784131f578ef893fd7674273f709b9a4c

SHA256
2eae3dea1c3dde6104c49f9601074b6038ff6abcf3be23f4b56f6720a4f6a491

SHA512
25cfb0d6ce35d0bcb18527d3aa12c63ecb2d9c1b8b78805d1306e516c13480b79bb0d74730aa93bd1752f9ac2da9fdd51781c48844cea2fd52a06c62852c8279

Download Submit
C:\Users\Admin\lib\system-hook-3.5.jar
Filesize
772KB

MD5
e1aa38a1e78a76a6de73efae136cdb3a

SHA1
c463da71871f780b2e2e5dba115d43953b537daf

SHA256
2ddda8af6faef8bde46acf43ec546603180bcf8dcb2e5591fff8ac9cd30b5609

SHA512
fee16fe9364926ec337e52f551fd62ed81984808a847de2fd68ff29b6c5da0dcc04ef6d8977f0fe675662a7d2ea1065cdcdd2a5259446226a7c7c5516bd7d60d

Download Submit
C:\Users\Admin\pzsjuirnnn.js
Filesize
204KB

MD5
df07d5680a1bcd9a5af8a5a1b6b52598

SHA1
b070b44d630ae454c34419e65d38850ee2ca6bfb

SHA256
1d10f4534674ce86f17ec22da471f3d472da1f6a15348238e4e289f0e0e4c0e0

SHA512
e1f742db062e02773a9cde941607b512bc97ac68f09bb2e249492303f28011116bcfab10c84f596cef45c7fd39da01f2715ba3ea6f8f429c984ac896ed821ee6

Download Submit
memory/2672-150-0x0000022407BD0000-0x0000022407BD1000-memory.dmp

Filesize
4KB

Download
memory/2672-135-0x0000022407BD0000-0x0000022407BD1000-memory.dmp

Filesize
4KB

Download
memory/3824-21-0x00007FFFAFF90000-0x00007FFFB0185000-memory.dmp

Filesize
2.0MB

Download
memory/3824-102-0x00007FFFAFF90000-0x00007FFFB0185000-memory.dmp

Filesize
2.0MB

Download
memory/3824-101-0x0000015B82980000-0x0000015B82981000-memory.dmp

Filesize
4KB

Download
memory/3824-94-0x0000015B82980000-0x0000015B82981000-memory.dmp

Filesize
4KB

Download
memory/3824-80-0x0000015B82980000-0x0000015B82981000-memory.dmp

Filesize
4KB

Download
memory/3824-76-0x0000015B82980000-0x0000015B82981000-memory.dmp

Filesize
4KB

Download
memory/3824-73-0x0000015B82980000-0x0000015B82981000-memory.dmp

Filesize
4KB

Download
memory/3824-46-0x0000015B82980000-0x0000015B82981000-memory.dmp

Filesize
4KB

Download
memory/4924-176-0x000002EA75AF0000-0x000002EA75AF1000-memory.dmp

Filesize
4KB

Download
memory/4924-194-0x000002EA75AF0000-0x000002EA75AF1000-memory.dmp

Filesize
4KB

Download
memory/4988-2-0x00007FFFAFF90000-0x00007FFFB0185000-memory.dmp

Filesize
2.0MB

Download
memory/4988-15-0x00007FFFAFF90000-0x00007FFFB0185000-memory.dmp

Filesize
2.0MB

Download
memory/4988-14-0x000002A578840000-0x000002A578841000-memory.dmp

Filesize
4KB

Download