8482ec09595a70a84a13c0a07f5e7d68b1b790951d12c0c46ddf98c03d40005e

Analysis

max time kernel
51s
max time network
51s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
25-06-2024 12:16

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General

Target

0e08cd297f96d093d2a76f874664775b_JaffaCakes118.exe
Size

68KB
MD5

0e08cd297f96d093d2a76f874664775b
SHA1

b023b4fc98d1e8b2bf0d8c1e09680fbe2eeaabf1
SHA256

8482ec09595a70a84a13c0a07f5e7d68b1b790951d12c0c46ddf98c03d40005e
SHA512

7a1c1d3863342daf921e16c277050b19ab58f5d0e73449159662256e76410bbfa796b3efc7923e0eca3b08ff9843aaa40ab7b1ebbbb4717ba7050ce25236e79b
SSDEEP

1536:+MXxVulAmfx/Wz30ZkHuM4ymdgIfG133EqKopXIwOpruPGBxrzbu1N3MdZRHQi0:psVS3Ckr0NCJpXBkruPG73AMdfH9

Score

8^/10

defense_evasion discovery exploit upx

Malware Config

Signatures

Possible privilege escalation attempt 2 IoCs
exploit

Processes:

takeown.exeicacls.exe

pid process

4520 takeown.exe
4416 icacls.exe
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:

0e08cd297f96d093d2a76f874664775b_JaffaCakes118.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation 0e08cd297f96d093d2a76f874664775b_JaffaCakes118.exe
Deletes itself 1 IoCs

Processes:

regsvr32.exe

pid process

4000 regsvr32.exe
Loads dropped DLL 1 IoCs

Processes:

regsvr32.exe

pid process

4000 regsvr32.exe
Modifies file permissions 1 TTPs 2 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

takeown.exeicacls.exe

pid process

4520 takeown.exe
4416 icacls.exe
UPX packed file 1 IoCs
Detects executables packed with UPX/modified UPX open source packer.
upx

Processes:

resource yara_rule

behavioral2/memory/4384-0-0x0000000000400000-0x0000000000421000-memory.dmp upx
File and Directory Permissions Modification: Windows File and Directory Permissions Modification 1 TTPs
defense_evasion

Windows File and Directory Permissions Modification
T1222.001

pid	process
4520	takeown.exe
4416	icacls.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	0e08cd297f96d093d2a76f874664775b_JaffaCakes118.exe

pid	process
4000	regsvr32.exe

pid	process
4000	regsvr32.exe

pid	process
4520	takeown.exe
4416	icacls.exe

resource	yara_rule
behavioral2/memory/4384-0-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

Processes:

regsvr32.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\apa.dll	regsvr32.exe
File created	C:\Windows\SysWOW64\rpcss.dll	regsvr32.exe
File opened for modification	C:\Windows\SysWOW64\rpcss.dll	regsvr32.exe

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

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

regsvr32.exe

pid process

4000 regsvr32.exe
4000 regsvr32.exe
4000 regsvr32.exe
4000 regsvr32.exe
4000 regsvr32.exe
4000 regsvr32.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

regsvr32.exetakeown.exe

description pid process

Token: SeDebugPrivilege 4000 regsvr32.exe
Token: SeTakeOwnershipPrivilege 4520 takeown.exe

pid	process
4000	regsvr32.exe
4000	regsvr32.exe
4000	regsvr32.exe
4000	regsvr32.exe
4000	regsvr32.exe
4000	regsvr32.exe

description	pid	process
Token: SeDebugPrivilege	4000	regsvr32.exe
Token: SeTakeOwnershipPrivilege	4520	takeown.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

0e08cd297f96d093d2a76f874664775b_JaffaCakes118.exeregsvr32.exe

description	pid	process	target process
PID 4384 wrote to memory of 4000	4384	0e08cd297f96d093d2a76f874664775b_JaffaCakes118.exe	regsvr32.exe
PID 4384 wrote to memory of 4000	4384	0e08cd297f96d093d2a76f874664775b_JaffaCakes118.exe	regsvr32.exe
PID 4384 wrote to memory of 4000	4384	0e08cd297f96d093d2a76f874664775b_JaffaCakes118.exe	regsvr32.exe
PID 4000 wrote to memory of 4520	4000	regsvr32.exe	takeown.exe
PID 4000 wrote to memory of 4520	4000	regsvr32.exe	takeown.exe
PID 4000 wrote to memory of 4520	4000	regsvr32.exe	takeown.exe
PID 4000 wrote to memory of 4416	4000	regsvr32.exe	icacls.exe
PID 4000 wrote to memory of 4416	4000	regsvr32.exe	icacls.exe
PID 4000 wrote to memory of 4416	4000	regsvr32.exe	icacls.exe
PID 4000 wrote to memory of 804	4000	regsvr32.exe	svchost.exe

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k DcomLaunch -p
1⤵
PID:804

C:\Users\Admin\AppData\Local\Temp\0e08cd297f96d093d2a76f874664775b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0e08cd297f96d093d2a76f874664775b_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4384

C:\Windows\SysWOW64\regsvr32.exe
"C:\Windows\system32\regsvr32.exe" /s C:\Users\Admin\AppData\Local\Temp\~~e57446b.tmp ,C:\Users\Admin\AppData\Local\Temp\0e08cd297f96d093d2a76f874664775b_JaffaCakes118.exe
2⤵
- Deletes itself
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4000

C:\Windows\SysWOW64\takeown.exe
takeown /f "C:\Windows\system32\rpcss.dll"
3⤵
- Possible privilege escalation attempt
- Modifies file permissions
- Suspicious use of AdjustPrivilegeToken
PID:4520

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Windows\system32\rpcss.dll" /grant administrators:F
3⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:4416

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

T1222

Windows File and Directory Permissions Modification

T1222.001

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\~~e57446b.tmp
Filesize
1.0MB

MD5
dcf6a68f34bd65462c8f116908838e43

SHA1
441503cc74b5d8b12e7291c05ebc9aadd7072225

SHA256
36545f22411ccd3a63914092b8b83f60782d7ef157b5fe31da7a7118d8bdb186

SHA512
1d01f8f8d414dab670bbe2bd18dba868876e9883f9993a0a57b60a515bba7f0b9478697de49c6747942e94626519b3390b447cccb666d9da0cc2ceee5862052e

Download Submit
C:\Windows\SysWOW64\apa.dll
Filesize
225B

MD5
fabdc8f73f0adc5a4172ebd0fa21007e

SHA1
901127f021cf5227ba3d56ea0248245dd6b392ed

SHA256
a625ed2d7cfe44cf4ba6840e335dfefaec71eb837ec9e83af65fe6513c18d830

SHA512
a35f08bb54ffa858dc9907fc26bda50f0486c784f39e0fe0905259645c205985ad7d10a12b41e5e4e0bfeb1253f69f232baeabc7b9647d309e4738f9e3f028a4

Download Submit
memory/4384-0-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download