stealc | bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79

Analysis

max time kernel
120s
max time network
125s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
01-07-2024 02:00

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General

Target

bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79.exe
Size

2.2MB
MD5

678de29625b73eaed2ac0b1b7ee45a8f
SHA1

0bc71d5cda583b96fc9cc2525fd2fe7d329f1dc8
SHA256

bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79
SHA512

16026d97d034b297f57889b3723e09eecf4fa95648d71e30cc03874091929f5376ade59d521158e62da79d35fd81c0ccb737772364ff8fb33ec952b93514ce6c
SSDEEP

49152:qpjNvr9ySAOmw4NHHO+SASagXkJr4MDkUwm:qpjNp7p4NHH8n5A

Score

10^/10

stealc vidar discovery spyware stealer

Malware Config

Extracted

Family

vidar

https://t.me/g067n

https://steamcommunity.com/profiles/76561199707802586

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0

Signatures

Detect Vidar Stealer 14 IoCs

stealer

Processes:

resource	yara_rule
behavioral1/memory/2076-6-0x00000000032C0000-0x00000000033D0000-memory.dmp	family_vidar_v7
behavioral1/memory/2280-15-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2280-24-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2280-23-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2280-17-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2280-19-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2280-193-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2280-218-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2280-255-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2280-280-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2280-384-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2280-509-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2280-534-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2280-584-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Downloads MZ/PE file
Executes dropped EXE 1 IoCs

Processes:

kat14E8.tmp

pid process

2280 kat14E8.tmp
Loads dropped DLL 2 IoCs

Processes:

bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79.exe

pid process

2076 bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79.exe
2076 bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79.exe
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Suspicious use of SetThreadContext 1 IoCs

Processes:

bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79.exe

description pid process target process

PID 2076 set thread context of 2280 2076 bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79.exe kat14E8.tmp
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2280	kat14E8.tmp

pid	process
2076	bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79.exe
2076	bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79.exe

description	pid	process	target process
PID 2076 set thread context of 2280	2076	bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79.exe	kat14E8.tmp

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

kat14E8.tmp

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	kat14E8.tmp
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	kat14E8.tmp

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1284 timeout.exe

pid	process
1284	timeout.exe

Modifies system certificate store 2 TTPs 3 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

Processes:

kat14E8.tmp

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25	kat14E8.tmp
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 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	kat14E8.tmp
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 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	kat14E8.tmp

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

kat14E8.tmp

pid process

2280 kat14E8.tmp
2280 kat14E8.tmp
2280 kat14E8.tmp
2280 kat14E8.tmp

pid	process
2280	kat14E8.tmp
2280	kat14E8.tmp
2280	kat14E8.tmp
2280	kat14E8.tmp

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79.exekat14E8.tmpcmd.exe

description	pid	process	target process
PID 2076 wrote to memory of 2280	2076	bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79.exe	kat14E8.tmp
PID 2076 wrote to memory of 2280	2076	bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79.exe	kat14E8.tmp
PID 2076 wrote to memory of 2280	2076	bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79.exe	kat14E8.tmp
PID 2076 wrote to memory of 2280	2076	bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79.exe	kat14E8.tmp
PID 2076 wrote to memory of 2280	2076	bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79.exe	kat14E8.tmp
PID 2076 wrote to memory of 2280	2076	bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79.exe	kat14E8.tmp
PID 2076 wrote to memory of 2280	2076	bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79.exe	kat14E8.tmp
PID 2076 wrote to memory of 2280	2076	bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79.exe	kat14E8.tmp
PID 2076 wrote to memory of 2280	2076	bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79.exe	kat14E8.tmp
PID 2280 wrote to memory of 612	2280	kat14E8.tmp	cmd.exe
PID 2280 wrote to memory of 612	2280	kat14E8.tmp	cmd.exe
PID 2280 wrote to memory of 612	2280	kat14E8.tmp	cmd.exe
PID 2280 wrote to memory of 612	2280	kat14E8.tmp	cmd.exe
PID 612 wrote to memory of 1284	612	cmd.exe	timeout.exe
PID 612 wrote to memory of 1284	612	cmd.exe	timeout.exe
PID 612 wrote to memory of 1284	612	cmd.exe	timeout.exe
PID 612 wrote to memory of 1284	612	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79.exe
"C:\Users\Admin\AppData\Local\Temp\bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2076

C:\Users\Admin\AppData\Local\Temp\kat14E8.tmp
C:\Users\Admin\AppData\Local\Temp\kat14E8.tmp
2⤵
- Executes dropped EXE
- Checks processor information in registry
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2280

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat14E8.tmp" & rd /s /q "C:\ProgramData\GHJDHDAECBGC" & exit
3⤵
- Suspicious use of WriteProcessMemory
PID:612

C:\Windows\SysWOW64\timeout.exe
timeout /t 10
4⤵
- Delays execution with timeout.exe
PID:1284

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F0ACCF77CDCBFF39F6191887F6D2D357
Filesize
1KB

MD5
a266bb7dcc38a562631361bbf61dd11b

SHA1
3b1efd3a66ea28b16697394703a72ca340a05bd5

SHA256
df545bf919a2439c36983b54cdfc903dfa4f37d3996d8d84b4c31eec6f3c163e

SHA512
0da8ef4f8f6ed3d16d2bc8eb816b9e6e1345dfe2d91160196c47e6149a1d6aedaafadcefd66acdea7f72dcf0832770192ceac15b0c559c4ccc2c0e5581d5aefc

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize
342B

MD5
c54028356713f6361707db0c78574a01

SHA1
fbf3ffba6169e13ab003e52990b0342d48982428

SHA256
a9bf923abaead15f1f6139fdf581ff0fcba73e173f1bf72836f5a9949e81cecd

SHA512
fc4cf812ba54780885f7e0922520b4134cddf297be4fa7fd0d8c837d090f26cacdf10c829aa205524f1a9f8d8fe314b9dc39ad2eaf5e4c9a5048df03cd957fb1

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357
Filesize
242B

MD5
0c74ddef3fa244ed21ce4dc0bb06a558

SHA1
e0e41accc5ca3c8d715f4698c5e4d27bedfb1d77

SHA256
6f579437690aea6c4256cf6efd6324fbaaa39aeb97bc453a0e7efe1bb32f8759

SHA512
c2da6fd66ff3487f35bc44c6f7e34810a6c90dcac38908bd17933c242dedb37d29389a9c10a9c26924837b1e84cbacc5c16bceb25aedd68ee1d16a9e9238d795

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar2429.tmp
Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
\Users\Admin\AppData\Local\Temp\kat14E8.tmp
Filesize
861KB

MD5
66064dbdb70a5eb15ebf3bf65aba254b

SHA1
0284fd320f99f62aca800fb1251eff4c31ec4ed7

SHA256
6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795

SHA512
b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

Download Submit
memory/2076-21-0x0000000000400000-0x0000000000635000-memory.dmp

Filesize
2.2MB

Download
memory/2076-6-0x00000000032C0000-0x00000000033D0000-memory.dmp

Filesize
1.1MB

Download
memory/2076-0-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2280-15-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2280-218-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2280-19-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2280-23-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2280-24-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2280-13-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2280-11-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2280-9-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2280-193-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2280-17-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2280-244-0x0000000025170000-0x00000000253CF000-memory.dmp

Filesize
2.4MB

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memory/2280-255-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

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memory/2280-280-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

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memory/2280-384-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

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memory/2280-509-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

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memory/2280-534-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

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memory/2280-584-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

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