stealc | 12ca4ad8cd613c8d086cd39a5c6e787c12209f2271ba850817b72eae3cd559da

Analysis

max time kernel
92s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30-11-2024 21:21

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General

Target

TTDesktop18.exe
Size

13KB
MD5

22bded153b8c1ec4b1d1b45e0467f7c6
SHA1

1c8825442a455da9ffa0fd56e0e2848dfa58bf2c
SHA256

f07f39ca504a15d670eecad52c272ed5cdc4025fede61cd910d7da2a55d1d052
SHA512

f6022cbf7120e1771e7ba992bcd59ba5f8f68507d91c10c997a3186766547ea0632347facfdec667c3bde261748eb93ee8df35c71600fd7c459539f629b408bb
SSDEEP

192:0qgaiJUFTQcHVPtAXjJ9vT2O3yP8B50LOZdBcmCEJXVWwTnkVOvQu:57zFEcH769vT2OCkB50LknnVTnkVUQ

Score

10^/10

stealc vidar 41d35cbb974bc2d1287dcd4381b4a2a8 discovery execution stealer

Malware Config

Extracted

Family

vidar

Version

11.8

Botnet

41d35cbb974bc2d1287dcd4381b4a2a8

https://t.me/fu4chmo

https://steamcommunity.com/profiles/76561199802540894

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.6 Safari/605.1.15 Ddg/17.6

Signatures

Detect Vidar Stealer 3 IoCs

stealer

resource	yara_rule
behavioral16/files/0x0007000000023c97-137.dat	family_vidar_v7
behavioral16/memory/1336-140-0x0000000000830000-0x0000000000A89000-memory.dmp	family_vidar_v7
behavioral16/memory/1336-159-0x0000000000830000-0x0000000000A89000-memory.dmp	family_vidar_v7

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Stealc family
stealc
Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Vidar family
vidar

Command and Scripting Interpreter: PowerShell 1 TTPs 6 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
3820	powershell.exe
2032	powershell.exe
3004	powershell.exe
2384	powershell.exe
1380	powershell.exe
5068	powershell.exe

Downloads MZ/PE file

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	TTDesktop18.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	qMjgoAEH.exe

Executes dropped EXE 1 IoCs

pid	Process
1336	qMjgoAEH.exe

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

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
24	raw.githubusercontent.com
25	raw.githubusercontent.com

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TTDesktop18.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	qMjgoAEH.exe

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	qMjgoAEH.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	qMjgoAEH.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
4920	timeout.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
3004	powershell.exe
3004	powershell.exe
2384	powershell.exe
2384	powershell.exe
1380	powershell.exe
1380	powershell.exe
5068	powershell.exe
5068	powershell.exe
3820	powershell.exe
3820	powershell.exe
2032	powershell.exe
2032	powershell.exe
1336	qMjgoAEH.exe
1336	qMjgoAEH.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	3004	powershell.exe
Token: SeDebugPrivilege	2384	powershell.exe
Token: SeDebugPrivilege	1380	powershell.exe
Token: SeDebugPrivilege	5068	powershell.exe
Token: SeDebugPrivilege	3820	powershell.exe
Token: SeDebugPrivilege	2032	powershell.exe
Token: SeDebugPrivilege	2848	TTDesktop18.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 2848 wrote to memory of 3004	2848	TTDesktop18.exe	84
PID 2848 wrote to memory of 3004	2848	TTDesktop18.exe	84
PID 2848 wrote to memory of 3004	2848	TTDesktop18.exe	84
PID 3004 wrote to memory of 2384	3004	powershell.exe	86
PID 3004 wrote to memory of 2384	3004	powershell.exe	86
PID 3004 wrote to memory of 2384	3004	powershell.exe	86
PID 2848 wrote to memory of 1380	2848	TTDesktop18.exe	92
PID 2848 wrote to memory of 1380	2848	TTDesktop18.exe	92
PID 2848 wrote to memory of 1380	2848	TTDesktop18.exe	92
PID 1380 wrote to memory of 5068	1380	powershell.exe	94
PID 1380 wrote to memory of 5068	1380	powershell.exe	94
PID 1380 wrote to memory of 5068	1380	powershell.exe	94
PID 2848 wrote to memory of 3820	2848	TTDesktop18.exe	97
PID 2848 wrote to memory of 3820	2848	TTDesktop18.exe	97
PID 2848 wrote to memory of 3820	2848	TTDesktop18.exe	97
PID 3820 wrote to memory of 2032	3820	powershell.exe	99
PID 3820 wrote to memory of 2032	3820	powershell.exe	99
PID 3820 wrote to memory of 2032	3820	powershell.exe	99
PID 2848 wrote to memory of 1336	2848	TTDesktop18.exe	104
PID 2848 wrote to memory of 1336	2848	TTDesktop18.exe	104
PID 2848 wrote to memory of 1336	2848	TTDesktop18.exe	104
PID 1336 wrote to memory of 2812	1336	qMjgoAEH.exe	109
PID 1336 wrote to memory of 2812	1336	qMjgoAEH.exe	109
PID 1336 wrote to memory of 2812	1336	qMjgoAEH.exe	109
PID 2812 wrote to memory of 4920	2812	cmd.exe	111
PID 2812 wrote to memory of 4920	2812	cmd.exe	111
PID 2812 wrote to memory of 4920	2812	cmd.exe	111

C:\Users\Admin\AppData\Local\Temp\TTDesktop18.exe
"C:\Users\Admin\AppData\Local\Temp\TTDesktop18.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2848
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" powershell -Command "Add-MpPreference -ExclusionPath 'C:\geYkIOcVn'"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3004
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command Add-MpPreference -ExclusionPath C:\geYkIOcVn
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2384
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" powershell -Command "Add-MpPreference -ExclusionPath 'C:\Users'"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1380
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command Add-MpPreference -ExclusionPath C:\Users
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:5068
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" powershell -Command "Add-MpPreference -ExclusionPath 'C:\Windows'"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3820
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command Add-MpPreference -ExclusionPath C:\Windows
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2032
- C:\geYkIOcVn\qMjgoAEH.exe
  "C:\geYkIOcVn\qMjgoAEH.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1336
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\geYkIOcVn\qMjgoAEH.exe" & rd /s /q "C:\ProgramData\GIECFIEGDBKJ" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2812
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:4920

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
3d086a433708053f9bf9523e1d87a4e8

SHA1
b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

SHA256
6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

SHA512
931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
11KB

MD5
ac6b394641d51de0fd1dcefc8df002ff

SHA1
8f324975dd07255ed3696dd0a32a626f1e7ccb64

SHA256
9592c3e2b0b0608fbc20554fa2ded2335b812a0a5bba852aa9ae5d70de8f0c18

SHA512
e5379e4ff25ff98dfbd62ef3cc496a035254f1d36fe986fa751bed67720893a2fcb722bf8e9c139ac4d33ee5b445dd0647c2fdf8d6e1b62a253496bf620fb948

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
104B

MD5
3da03f1db2d154c47074806daed32971

SHA1
9ae40acfdae4aaa9964357de82ce72a87c8fe92f

SHA256
be576748685a939cf5dca4862d3467966aa01617212ab0c48a28d3c40842b567

SHA512
0168729edbd3a894ad0fd5fcb03a146d0f5cdf81c36dc1dd62ae6a73ea49ad07b896baa72844c4f1b83fbf9fdaaa937f6639cc9109691834b9101b71565c454c

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
11KB

MD5
dc81fca061e76b6084ab553763d66a45

SHA1
9749fe13a5bd3e227e927167c0042fb70c940aec

SHA256
ed417343327bf65b245231d42ac3cbe2c20d1afa4ce7a203dec1fe6a967c5804

SHA512
211decfe28ecc14ae3446fc3d926a9427e34031dd602e9e064797f5708af411cdc470b3d36dda96dbdac1400085311c5b38bb4b8367a246488b44023042d4893

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
11KB

MD5
11f622645d6cea5ecd23c3fc17e1a39d

SHA1
778a106a3b2c3a989ce2198468ef2ea3fcfbf2fc

SHA256
9dc968631302ab0e0f9e725a3f8a2743864695fc6f1adb257ccf91bc6971215a

SHA512
47cde348d8ee1a144692986192b397784e8e579b9eab5a923e008807306afe8bffceee66d92c0e515871485e7ff7b93a3f9459e0fc2146f4eb01c72b45b18783

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_q5mjy33l.bu2.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\geYkIOcVn\qMjgoAEH.exe

Filesize
275KB

MD5
0a7b3454fdad8431bd3523648c915665

SHA1
800a97a7c1a92a92cac76afc1fe5349895ee5287

SHA256
baf217d7bb8f3a86856def6891638318a94ed5d7082149d4dd4cb755d90d86ce

SHA512
020e45eaeee083d6739155d9a821ab54dd07f1320b8efb73871ee5d29188122fdbb7d39b34a8b3694a8b0c08ae1801ec370e40ff8d837c9190a72905f26baff9

Download Submit
memory/1336-159-0x0000000000830000-0x0000000000A89000-memory.dmp

Filesize
2.3MB

Download
memory/1336-140-0x0000000000830000-0x0000000000A89000-memory.dmp

Filesize
2.3MB

Download
memory/2032-119-0x0000000070220000-0x000000007026C000-memory.dmp

Filesize
304KB

Download
memory/2384-51-0x0000000007830000-0x000000000784A000-memory.dmp

Filesize
104KB

Download
memory/2384-55-0x0000000007A60000-0x0000000007A6E000-memory.dmp

Filesize
56KB

Download
memory/2384-62-0x0000000074420000-0x0000000074BD0000-memory.dmp

Filesize
7.7MB

Download
memory/2384-58-0x0000000007B50000-0x0000000007B58000-memory.dmp

Filesize
32KB

Download
memory/2384-22-0x0000000074420000-0x0000000074BD0000-memory.dmp

Filesize
7.7MB

Download
memory/2384-23-0x0000000074420000-0x0000000074BD0000-memory.dmp

Filesize
7.7MB

Download
memory/2384-24-0x0000000074420000-0x0000000074BD0000-memory.dmp

Filesize
7.7MB

Download
memory/2384-57-0x0000000007B70000-0x0000000007B8A000-memory.dmp

Filesize
104KB

Download
memory/2384-35-0x0000000006AD0000-0x0000000006B02000-memory.dmp

Filesize
200KB

Download
memory/2384-36-0x0000000070220000-0x000000007026C000-memory.dmp

Filesize
304KB

Download
memory/2384-46-0x0000000006AB0000-0x0000000006ACE000-memory.dmp

Filesize
120KB

Download
memory/2384-47-0x0000000074420000-0x0000000074BD0000-memory.dmp

Filesize
7.7MB

Download
memory/2384-49-0x00000000076D0000-0x0000000007773000-memory.dmp

Filesize
652KB

Download
memory/2384-48-0x0000000074420000-0x0000000074BD0000-memory.dmp

Filesize
7.7MB

Download
memory/2384-56-0x0000000007A70000-0x0000000007A84000-memory.dmp

Filesize
80KB

Download
memory/2384-50-0x0000000007E70000-0x00000000084EA000-memory.dmp

Filesize
6.5MB

Download
memory/2384-52-0x00000000078A0000-0x00000000078AA000-memory.dmp

Filesize
40KB

Download
memory/2384-53-0x0000000007AB0000-0x0000000007B46000-memory.dmp

Filesize
600KB

Download
memory/2384-54-0x0000000007A30000-0x0000000007A41000-memory.dmp

Filesize
68KB

Download
memory/2848-132-0x0000000074420000-0x0000000074BD0000-memory.dmp

Filesize
7.7MB

Download
memory/2848-0-0x000000007442E000-0x000000007442F000-memory.dmp

Filesize
4KB

Download
memory/2848-34-0x000000007442E000-0x000000007442F000-memory.dmp

Filesize
4KB

Download
memory/2848-1-0x0000000000890000-0x000000000089A000-memory.dmp

Filesize
40KB

Download
memory/2848-145-0x0000000074420000-0x0000000074BD0000-memory.dmp

Filesize
7.7MB

Download
memory/3004-20-0x0000000005C30000-0x0000000005C4E000-memory.dmp

Filesize
120KB

Download
memory/3004-15-0x00000000055B0000-0x0000000005904000-memory.dmp

Filesize
3.3MB

Download
memory/3004-8-0x0000000005540000-0x00000000055A6000-memory.dmp

Filesize
408KB

Download
memory/3004-66-0x0000000074420000-0x0000000074BD0000-memory.dmp

Filesize
7.7MB

Download
memory/3004-7-0x0000000005420000-0x0000000005486000-memory.dmp

Filesize
408KB

Download
memory/3004-21-0x0000000005C60000-0x0000000005CAC000-memory.dmp

Filesize
304KB

Download
memory/3004-6-0x0000000004CF0000-0x0000000004D12000-memory.dmp

Filesize
136KB

Download
memory/3004-59-0x0000000074420000-0x0000000074BD0000-memory.dmp

Filesize
7.7MB

Download
memory/3004-5-0x0000000074420000-0x0000000074BD0000-memory.dmp

Filesize
7.7MB

Download
memory/3004-3-0x0000000074420000-0x0000000074BD0000-memory.dmp

Filesize
7.7MB

Download
memory/3004-14-0x0000000074420000-0x0000000074BD0000-memory.dmp

Filesize
7.7MB

Download
memory/3004-4-0x0000000004DF0000-0x0000000005418000-memory.dmp

Filesize
6.2MB

Download
memory/3004-2-0x0000000002280000-0x00000000022B6000-memory.dmp

Filesize
216KB

Download
memory/3820-108-0x0000000005D40000-0x0000000006094000-memory.dmp

Filesize
3.3MB

Download
memory/5068-86-0x0000000070220000-0x000000007026C000-memory.dmp

Filesize
304KB

Download