stealc | 136aff853514ca7aba662cc26bc54cfb92d58e6477752ce3a8948ff9f1117499

Analysis

max time kernel
149s
max time network
153s
platform
windows11-21h2_x64
resource
win11-20240412-en
resource tags

arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system
submitted
22-04-2024 18:04

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General

Target

136aff853514ca7aba662cc26bc54cfb92d58e6477752ce3a8948ff9f1117499.exe
Size

414KB
MD5

df1ecb1fc2d0480ef5a0e569543d14e9
SHA1

8c90b5a6caab28b852cde352011752cb2761fdf9
SHA256

136aff853514ca7aba662cc26bc54cfb92d58e6477752ce3a8948ff9f1117499
SHA512

4e8af41bdd90a6a2f2008be558041678608761703bbbd4f08a55ff1305464319bb96cbd53071c71f83a73ee6d1189a3a3aa3c91e69c3aae9626e3e209671aad4
SSDEEP

6144:GaNowv7MR+dM+A4K3Kc8Y2Yem0IuONlLfiFtDgjTUGU6J54:GaNPv7Q+72K4eYrlLQDg0xo4

Score

10^/10

stealc stealer

Malware Config

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Downloads MZ/PE file

Executes dropped EXE 5 IoCs

pid	Process
4828	u2lg.0.exe
4480	Qg_Appv5.exe
3272	u2lg.1.exe
2260	ptInst.exe
1848	ptInst.exe

Loads dropped DLL 8 IoCs

pid	Process
2260	ptInst.exe
2260	ptInst.exe
2260	ptInst.exe
2260	ptInst.exe
2260	ptInst.exe
1848	ptInst.exe
1848	ptInst.exe
1848	ptInst.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1848 set thread context of 4192	1848	ptInst.exe	92

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2452	4828	WerFault.exe	78
3684	3364	WerFault.exe	77

Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u2lg.1.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u2lg.1.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u2lg.1.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
4480	Qg_Appv5.exe
4480	Qg_Appv5.exe
4480	Qg_Appv5.exe
4480	Qg_Appv5.exe
2260	ptInst.exe
1848	ptInst.exe
1848	ptInst.exe
4192	cmd.exe
4192	cmd.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1848	ptInst.exe

Suspicious use of FindShellTrayWindow 7 IoCs

pid	Process
3272	u2lg.1.exe
3272	u2lg.1.exe
3272	u2lg.1.exe
3272	u2lg.1.exe
3272	u2lg.1.exe
3272	u2lg.1.exe
3272	u2lg.1.exe

Suspicious use of SendNotifyMessage 7 IoCs

pid	Process
3272	u2lg.1.exe
3272	u2lg.1.exe
3272	u2lg.1.exe
3272	u2lg.1.exe
3272	u2lg.1.exe
3272	u2lg.1.exe
3272	u2lg.1.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 3364 wrote to memory of 4828	3364	136aff853514ca7aba662cc26bc54cfb92d58e6477752ce3a8948ff9f1117499.exe	78
PID 3364 wrote to memory of 4828	3364	136aff853514ca7aba662cc26bc54cfb92d58e6477752ce3a8948ff9f1117499.exe	78
PID 3364 wrote to memory of 4828	3364	136aff853514ca7aba662cc26bc54cfb92d58e6477752ce3a8948ff9f1117499.exe	78
PID 3364 wrote to memory of 4480	3364	136aff853514ca7aba662cc26bc54cfb92d58e6477752ce3a8948ff9f1117499.exe	84
PID 3364 wrote to memory of 4480	3364	136aff853514ca7aba662cc26bc54cfb92d58e6477752ce3a8948ff9f1117499.exe	84
PID 3364 wrote to memory of 4480	3364	136aff853514ca7aba662cc26bc54cfb92d58e6477752ce3a8948ff9f1117499.exe	84
PID 3364 wrote to memory of 3272	3364	136aff853514ca7aba662cc26bc54cfb92d58e6477752ce3a8948ff9f1117499.exe	85
PID 3364 wrote to memory of 3272	3364	136aff853514ca7aba662cc26bc54cfb92d58e6477752ce3a8948ff9f1117499.exe	85
PID 3364 wrote to memory of 3272	3364	136aff853514ca7aba662cc26bc54cfb92d58e6477752ce3a8948ff9f1117499.exe	85
PID 4480 wrote to memory of 2260	4480	Qg_Appv5.exe	90
PID 4480 wrote to memory of 2260	4480	Qg_Appv5.exe	90
PID 4480 wrote to memory of 2260	4480	Qg_Appv5.exe	90
PID 2260 wrote to memory of 1848	2260	ptInst.exe	91
PID 2260 wrote to memory of 1848	2260	ptInst.exe	91
PID 2260 wrote to memory of 1848	2260	ptInst.exe	91
PID 1848 wrote to memory of 4192	1848	ptInst.exe	92
PID 1848 wrote to memory of 4192	1848	ptInst.exe	92
PID 1848 wrote to memory of 4192	1848	ptInst.exe	92
PID 1848 wrote to memory of 4192	1848	ptInst.exe	92

C:\Users\Admin\AppData\Local\Temp\136aff853514ca7aba662cc26bc54cfb92d58e6477752ce3a8948ff9f1117499.exe
"C:\Users\Admin\AppData\Local\Temp\136aff853514ca7aba662cc26bc54cfb92d58e6477752ce3a8948ff9f1117499.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3364
- C:\Users\Admin\AppData\Local\Temp\u2lg.0.exe
  "C:\Users\Admin\AppData\Local\Temp\u2lg.0.exe"
  2⤵
  - Executes dropped EXE
  PID:4828
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4828 -s 1136
    3⤵
    - Program crash
    PID:2452
- C:\Users\Admin\AppData\Local\Temp\Qg_Appv5.exe
  "C:\Users\Admin\AppData\Local\Temp\Qg_Appv5.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4480
- - C:\Users\Admin\AppData\Local\Temp\Uninstallcheck_alpha\ptInst.exe
    C:\Users\Admin\AppData\Local\Temp\Uninstallcheck_alpha\ptInst.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:2260
  - - C:\Users\Admin\AppData\Roaming\Uninstallcheck_alpha\ptInst.exe
      C:\Users\Admin\AppData\Roaming\Uninstallcheck_alpha\ptInst.exe
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of WriteProcessMemory
      PID:1848
    - - C:\Windows\SysWOW64\cmd.exe
        
        C:\Windows\SysWOW64\cmd.exe
        5⤵
        Suspicious behavior: EnumeratesProcesses
        
        PID:4192
- C:\Users\Admin\AppData\Local\Temp\u2lg.1.exe
  "C:\Users\Admin\AppData\Local\Temp\u2lg.1.exe"
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:3272
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3364 -s 1724
  2⤵
  - Program crash
  PID:3684

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4828 -ip 4828
1⤵
PID:3904

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3364 -ip 3364
1⤵
PID:4332

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\Qg_Appv5.exe

Filesize
7.6MB

MD5
862bf3003dca41d88ac49a6846149623

SHA1
b34f1d42dd0649d6b83f9a92124a554f48df0434

SHA256
50c10789db130a98c63e6e7f6e23b1c89b38c5ea4678f1e06fd1796fba25c75c

SHA512
fe5ab7888633dbfecca57ecd1732360796c2f19c62fc4282e2a92e9b8b440cc01e25b7a0c6a608cf9c2e9c9e3c49a8509a08851afcaef7e1afc21c0abcc2c969

Download Submit
C:\Users\Admin\AppData\Local\Temp\Uninstallcheck_alpha\WCLDll.dll

Filesize
590KB

MD5
63206e3b4f1fa4dcfbe1f2cc5d0c4e9d

SHA1
fe731b2e9c296d9ecc75ed96c2d29fe46c7cd924

SHA256
8f5b8645b5e5ea48acc411b21a1b3cd56d2660ac931989b9f064c8ff82039885

SHA512
32bdcce9e8e7f1ebe50e114f65f762391d52f482a112515ccb16b09653b93873528ea1a7473a2512075bf8f729997a65f455bf6599482e997b85e06a2f87f3d6

Download Submit
C:\Users\Admin\AppData\Local\Temp\Uninstallcheck_alpha\cosmetician.mpeg

Filesize
79KB

MD5
8e1bbc6d6c4d207393b59853f73945ae

SHA1
b66d632eae41267175bf5332d43a785dd929d79f

SHA256
b04725aaa99b27e04c02bec7d98fb4511331ea53761272325fff9c27a679e279

SHA512
1b45a7be00f54498df289641745ca6ee99e11d63100fb838b96c2d9412f8b5f0ea5aa8b964f32a4f9182cd599765f5ca08b91e8e8eecd06d1c53543284a59001

Download Submit
C:\Users\Admin\AppData\Local\Temp\Uninstallcheck_alpha\msvcp140.dll

Filesize
427KB

MD5
71a0aa2d05e9174cefd568347bd9c70f

SHA1
cb9247a0fa59e47f72df7d1752424b33a903bbb2

SHA256
fdb3d86c512adff90967cb860d02a4682850ab96727f0376e4d4836504c50e47

SHA512
6e65520528facaa4058720eb16d6bfdcc7bb36923b7e8e6551f3526709f0fabafab123999e618438e6abe7efed4a1332547cfc988f2b24b0e3d91198b95a911a

Download Submit
C:\Users\Admin\AppData\Local\Temp\Uninstallcheck_alpha\ptInst.exe

Filesize
938KB

MD5
b15bac961f62448c872e1dc6d3931016

SHA1
1dcb61babb08fe5db711e379cb67335357a5db82

SHA256
bf1a0c67b433f52ebd304553f022baa34bfbca258c932d2b4b8b956b1467bfa5

SHA512
932119f7dc6710239481c80ad8baaed5c14a2085fcc514b6522671b1a4ebbaf488e43453f11d5aaf6dcef7a245db8de44d93ff255f7cf8385b7d00f31f2cc370

Download Submit
C:\Users\Admin\AppData\Local\Temp\Uninstallcheck_alpha\quersprung.vhd

Filesize
1.3MB

MD5
3bee67dd0e04559c8fdc7761336dee47

SHA1
027ef9dca01fb928db79e57b418130165f06ed5f

SHA256
57745aba2885cf8bf770e7e9195697c05e35333417ca23af153367bf31cbf812

SHA512
35fb66f98a57b0d14c3044a91abac3e0670d516edfd691d6670df034e8454c550d3d2e702ab90cd32b70fcba8aeb2e02b7b3a07b6a340a932738968473f77dce

Download Submit
C:\Users\Admin\AppData\Local\Temp\Uninstallcheck_alpha\vcruntime140.dll

Filesize
81KB

MD5
16b26bc43943531d7d7e379632ed4e63

SHA1
565287de39649e59e653a3612478c2186096d70a

SHA256
346f72c9a7584c2ab6ce65cd38a616c77ebddc0bbab2274c4e89dd5e62237517

SHA512
b5b7b4b8c5ab4276a34956e43f586272b1803ec3609253fee1bcc0a549aed7ba11d47404b023f7b67af701726bab95cca55738e7bd5bca272eca5ac71bb418cc

Download Submit
C:\Users\Admin\AppData\Local\Temp\c099dd7e

Filesize
3.8MB

MD5
13418f74a7ce25cdd6997c9fcb718a0e

SHA1
f4c880821fee72c37c882b1e8ebf100efcafe31c

SHA256
a890935a36903669f35522c85c75e296404a4595453f060398cb64c5b0d6dfd0

SHA512
59017162877bbbdf823450a946e3e54e9130d8ebbf5baba24471c68a10d1fad3452be08c693cd7a78d0bf2fcfd6d3086edeec1a379f9b53fd66bb246c128d4c1

Download Submit
C:\Users\Admin\AppData\Local\Temp\da46906c

Filesize
1.4MB

MD5
7550914b27c5d17052c275f964728e14

SHA1
6280ba40d989f989adbaeed73e7bc29f7981d851

SHA256
301ad838897489119bfb484f549040664a049744d8d72a19760529420441be43

SHA512
d3f691f0838483f9cfdbc3162cfe88a6b967337ba9833b9b7070aeae854ad1a56c16cb5d889cff483649f7b5eee83f4f4a56d8d951fddf064cacf7df393f4b5f

Download Submit
C:\Users\Admin\AppData\Local\Temp\iolo\dm\ioloDMLog.txt

Filesize
2KB

MD5
d76d8cd8573d971433cc5196d46c9634

SHA1
3dcd5012c1c181d3c1a568581aa758b5dd41f659

SHA256
4756624503c2394c6163879a62171911f89f0d3f66f2ada8fe36c72519b036e5

SHA512
9fb38bb636e95048719538d6add9882f56caf66dfcd5bd9dafd59fee2c2ad3e04257fef8b51e46fe34b1a46478494e055c11a5c7a439d96f59c8d603d891b0d5

Download Submit
C:\Users\Admin\AppData\Local\Temp\u2lg.0.exe

Filesize
270KB

MD5
8ed49d27b8ccab5a03e6e822694fdaa1

SHA1
cf47d93e906e3f93329ceeedd061be95c4b1047b

SHA256
7ee946a36cdb7fa51dae1b2fc51ab628a7c7af1a01446c0413c0fba6aaff9a77

SHA512
551ca597962d6b818e31fc7a414a7dc62e981672092a12a282a6549573138e460187df8339582c6f52f204752c00047b39b6a33ccc546d194ccc8731fcf94512

Download Submit
C:\Users\Admin\AppData\Local\Temp\u2lg.1.exe

Filesize
4.6MB

MD5
397926927bca55be4a77839b1c44de6e

SHA1
e10f3434ef3021c399dbba047832f02b3c898dbd

SHA256
4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

SHA512
cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

Download Submit
memory/1848-139-0x0000000072700000-0x000000007287D000-memory.dmp

Filesize
1.5MB

Download
memory/1848-119-0x0000000072700000-0x000000007287D000-memory.dmp

Filesize
1.5MB

Download
memory/1848-120-0x00007FFDCFC60000-0x00007FFDCFE69000-memory.dmp

Filesize
2.0MB

Download
memory/1848-121-0x0000000072700000-0x000000007287D000-memory.dmp

Filesize
1.5MB

Download
memory/2260-101-0x00007FFDCFC60000-0x00007FFDCFE69000-memory.dmp

Filesize
2.0MB

Download
memory/2260-100-0x0000000072700000-0x000000007287D000-memory.dmp

Filesize
1.5MB

Download
memory/3272-60-0x00000000029A0000-0x00000000029A1000-memory.dmp

Filesize
4KB

Download
memory/3272-144-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/3272-146-0x00000000029A0000-0x00000000029A1000-memory.dmp

Filesize
4KB

Download
memory/3364-20-0x0000000002FB0000-0x00000000030B0000-memory.dmp

Filesize
1024KB

Download
memory/3364-19-0x0000000003230000-0x000000000329E000-memory.dmp

Filesize
440KB

Download
memory/3364-3-0x0000000000400000-0x0000000002C4A000-memory.dmp

Filesize
40.3MB

Download
memory/3364-2-0x0000000003230000-0x000000000329E000-memory.dmp

Filesize
440KB

Download
memory/3364-17-0x0000000000400000-0x0000000002C4A000-memory.dmp

Filesize
40.3MB

Download
memory/3364-65-0x0000000000400000-0x0000000002C4A000-memory.dmp

Filesize
40.3MB

Download
memory/3364-1-0x0000000002FB0000-0x00000000030B0000-memory.dmp

Filesize
1024KB

Download
memory/4192-141-0x0000000072700000-0x000000007287D000-memory.dmp

Filesize
1.5MB

Download
memory/4192-143-0x00007FFDCFC60000-0x00007FFDCFE69000-memory.dmp

Filesize
2.0MB

Download
memory/4480-44-0x00000000044A0000-0x00000000044A1000-memory.dmp

Filesize
4KB

Download
memory/4480-43-0x0000000000400000-0x0000000000BEB000-memory.dmp

Filesize
7.9MB

Download
memory/4480-67-0x0000000072700000-0x000000007287D000-memory.dmp

Filesize
1.5MB

Download
memory/4480-87-0x0000000072700000-0x000000007287D000-memory.dmp

Filesize
1.5MB

Download
memory/4480-122-0x0000000072700000-0x000000007287D000-memory.dmp

Filesize
1.5MB

Download
memory/4480-123-0x0000000000400000-0x0000000000BEB000-memory.dmp

Filesize
7.9MB

Download
memory/4480-68-0x00007FFDCFC60000-0x00007FFDCFE69000-memory.dmp

Filesize
2.0MB

Download
memory/4480-71-0x0000000072700000-0x000000007287D000-memory.dmp

Filesize
1.5MB

Download
memory/4828-16-0x0000000000400000-0x0000000002C26000-memory.dmp

Filesize
40.1MB

Download
memory/4828-13-0x0000000002E30000-0x0000000002F30000-memory.dmp

Filesize
1024KB

Download
memory/4828-14-0x00000000031B0000-0x00000000031D7000-memory.dmp

Filesize
156KB

Download
memory/4828-15-0x0000000000400000-0x0000000002C26000-memory.dmp

Filesize
40.1MB

Download