stealc | e84025b89f099a3391657130136a12bbab866875315b4e54d3c28aee1f636777

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02-12-2024 01:07

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General

Target

f07f39ca504a15d670eecad52c272ed5cdc4025fede61cd910d7da2a55d1d052.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
behavioral2/files/0x0007000000023c8b-137.dat	family_vidar_v7
behavioral2/memory/2388-140-0x00000000008A0000-0x0000000000AF9000-memory.dmp	family_vidar_v7
behavioral2/memory/2388-159-0x00000000008A0000-0x0000000000AF9000-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
4436	powershell.exe
1080	powershell.exe
2672	powershell.exe
1120	powershell.exe
1096	powershell.exe
1892	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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	f07f39ca504a15d670eecad52c272ed5cdc4025fede61cd910d7da2a55d1d052.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	GckidHcqYq.exe

Executes dropped EXE 1 IoCs

pid	Process
2388	GckidHcqYq.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
22	raw.githubusercontent.com
23	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	GckidHcqYq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f07f39ca504a15d670eecad52c272ed5cdc4025fede61cd910d7da2a55d1d052.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	cmd.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

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	GckidHcqYq.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	GckidHcqYq.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
852	timeout.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
4436	powershell.exe
4436	powershell.exe
1080	powershell.exe
1080	powershell.exe
2672	powershell.exe
2672	powershell.exe
1120	powershell.exe
1120	powershell.exe
1096	powershell.exe
1096	powershell.exe
1892	powershell.exe
1892	powershell.exe
2388	GckidHcqYq.exe
2388	GckidHcqYq.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	4436	powershell.exe
Token: SeDebugPrivilege	1080	powershell.exe
Token: SeDebugPrivilege	2672	powershell.exe
Token: SeDebugPrivilege	1120	powershell.exe
Token: SeDebugPrivilege	1096	powershell.exe
Token: SeDebugPrivilege	1892	powershell.exe
Token: SeDebugPrivilege	2752	f07f39ca504a15d670eecad52c272ed5cdc4025fede61cd910d7da2a55d1d052.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 2752 wrote to memory of 4436	2752	f07f39ca504a15d670eecad52c272ed5cdc4025fede61cd910d7da2a55d1d052.exe	85
PID 2752 wrote to memory of 4436	2752	f07f39ca504a15d670eecad52c272ed5cdc4025fede61cd910d7da2a55d1d052.exe	85
PID 2752 wrote to memory of 4436	2752	f07f39ca504a15d670eecad52c272ed5cdc4025fede61cd910d7da2a55d1d052.exe	85
PID 4436 wrote to memory of 1080	4436	powershell.exe	87
PID 4436 wrote to memory of 1080	4436	powershell.exe	87
PID 4436 wrote to memory of 1080	4436	powershell.exe	87
PID 2752 wrote to memory of 2672	2752	f07f39ca504a15d670eecad52c272ed5cdc4025fede61cd910d7da2a55d1d052.exe	90
PID 2752 wrote to memory of 2672	2752	f07f39ca504a15d670eecad52c272ed5cdc4025fede61cd910d7da2a55d1d052.exe	90
PID 2752 wrote to memory of 2672	2752	f07f39ca504a15d670eecad52c272ed5cdc4025fede61cd910d7da2a55d1d052.exe	90
PID 2672 wrote to memory of 1120	2672	powershell.exe	92
PID 2672 wrote to memory of 1120	2672	powershell.exe	92
PID 2672 wrote to memory of 1120	2672	powershell.exe	92
PID 2752 wrote to memory of 1096	2752	f07f39ca504a15d670eecad52c272ed5cdc4025fede61cd910d7da2a55d1d052.exe	96
PID 2752 wrote to memory of 1096	2752	f07f39ca504a15d670eecad52c272ed5cdc4025fede61cd910d7da2a55d1d052.exe	96
PID 2752 wrote to memory of 1096	2752	f07f39ca504a15d670eecad52c272ed5cdc4025fede61cd910d7da2a55d1d052.exe	96
PID 1096 wrote to memory of 1892	1096	powershell.exe	98
PID 1096 wrote to memory of 1892	1096	powershell.exe	98
PID 1096 wrote to memory of 1892	1096	powershell.exe	98
PID 2752 wrote to memory of 2388	2752	f07f39ca504a15d670eecad52c272ed5cdc4025fede61cd910d7da2a55d1d052.exe	105
PID 2752 wrote to memory of 2388	2752	f07f39ca504a15d670eecad52c272ed5cdc4025fede61cd910d7da2a55d1d052.exe	105
PID 2752 wrote to memory of 2388	2752	f07f39ca504a15d670eecad52c272ed5cdc4025fede61cd910d7da2a55d1d052.exe	105
PID 2388 wrote to memory of 1412	2388	GckidHcqYq.exe	110
PID 2388 wrote to memory of 1412	2388	GckidHcqYq.exe	110
PID 2388 wrote to memory of 1412	2388	GckidHcqYq.exe	110
PID 1412 wrote to memory of 852	1412	cmd.exe	112
PID 1412 wrote to memory of 852	1412	cmd.exe	112
PID 1412 wrote to memory of 852	1412	cmd.exe	112

C:\Users\Admin\AppData\Local\Temp\f07f39ca504a15d670eecad52c272ed5cdc4025fede61cd910d7da2a55d1d052.exe
"C:\Users\Admin\AppData\Local\Temp\f07f39ca504a15d670eecad52c272ed5cdc4025fede61cd910d7da2a55d1d052.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2752
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" powershell -Command "Add-MpPreference -ExclusionPath 'C:\vihvdaUJJU'"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4436
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command Add-MpPreference -ExclusionPath C:\vihvdaUJJU
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1080
- 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:2672
- - 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:1120
- 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:1096
- - 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:1892
- C:\vihvdaUJJU\GckidHcqYq.exe
  "C:\vihvdaUJJU\GckidHcqYq.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:2388
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\vihvdaUJJU\GckidHcqYq.exe" & rd /s /q "C:\ProgramData\BFHJECAAAFHI" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1412
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:852

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
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

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

Filesize
435B

MD5
4652e4fd1f0483deb4008fc5ad4916fd

SHA1
38e71bd32f106e5111762de6f3ca19fc6c8227fc

SHA256
04d0c8ee980608c9b5a7aee138a0bdeabec973117bd7a3e312074788b57fd2ae

SHA512
18dbb3bf2a470e99a26369c309f6e37bf72756faac30dc4ef19d3e62f45d879d040df218828a18949899643bdbf26cc2ba47aff6a087be3a640f19809e5c1aa8

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

Filesize
11KB

MD5
5b474f0e40673853d3fe1644e5033804

SHA1
eccac84606e2443891869433feb36963aa72b1df

SHA256
5a5b73363d95931fa3f7d28ef1e7bc941bdff7c58ce012975d14ac3ee04a0d2d

SHA512
2a54a7c2ec26ca465794ddd3d0a605d3660fda806755df69ced83507581a2ccb341e182a38dc91fadd42542923d930bdf6d180419be4b1a66546097e020d499a

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

Filesize
11KB

MD5
c67409c2f6591d5fd5103c97d3119b5b

SHA1
84b954ce093077695a863fbfdd3a0369dfa022bb

SHA256
8e3d665014ac42499340b803380ab51c7d62431fdf3404663b808a494889f283

SHA512
f09534050a7e9d87b44be8b7b048b7ccaa0e44af025b983a70abafafd896507fc3b13db155cffc4ef76bb25c16d31af68f8be55a7d19c0fe39e16c6b3e79942e

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fy3jq151.qkf.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\vihvdaUJJU\GckidHcqYq.exe

Filesize
275KB

MD5
0a7b3454fdad8431bd3523648c915665

SHA1
800a97a7c1a92a92cac76afc1fe5349895ee5287

SHA256
baf217d7bb8f3a86856def6891638318a94ed5d7082149d4dd4cb755d90d86ce

SHA512
020e45eaeee083d6739155d9a821ab54dd07f1320b8efb73871ee5d29188122fdbb7d39b34a8b3694a8b0c08ae1801ec370e40ff8d837c9190a72905f26baff9

Download Submit
memory/1080-53-0x00000000071F0000-0x0000000007286000-memory.dmp

Filesize
600KB

Download
memory/1080-47-0x0000000006E60000-0x0000000006F03000-memory.dmp

Filesize
652KB

Download
memory/1080-61-0x0000000074A00000-0x00000000751B0000-memory.dmp

Filesize
7.7MB

Download
memory/1080-55-0x00000000071A0000-0x00000000071AE000-memory.dmp

Filesize
56KB

Download
memory/1080-58-0x0000000007290000-0x0000000007298000-memory.dmp

Filesize
32KB

Download
memory/1080-57-0x00000000072B0000-0x00000000072CA000-memory.dmp

Filesize
104KB

Download
memory/1080-56-0x00000000071B0000-0x00000000071C4000-memory.dmp

Filesize
80KB

Download
memory/1080-54-0x0000000007170000-0x0000000007181000-memory.dmp

Filesize
68KB

Download
memory/1080-22-0x0000000074A00000-0x00000000751B0000-memory.dmp

Filesize
7.7MB

Download
memory/1080-23-0x0000000074A00000-0x00000000751B0000-memory.dmp

Filesize
7.7MB

Download
memory/1080-24-0x0000000074A00000-0x00000000751B0000-memory.dmp

Filesize
7.7MB

Download
memory/1080-52-0x0000000006FE0000-0x0000000006FEA000-memory.dmp

Filesize
40KB

Download
memory/1080-35-0x0000000006E20000-0x0000000006E52000-memory.dmp

Filesize
200KB

Download
memory/1080-36-0x0000000070800000-0x000000007084C000-memory.dmp

Filesize
304KB

Download
memory/1080-46-0x00000000061A0000-0x00000000061BE000-memory.dmp

Filesize
120KB

Download
memory/1080-50-0x00000000075B0000-0x0000000007C2A000-memory.dmp

Filesize
6.5MB

Download
memory/1080-48-0x0000000074A00000-0x00000000751B0000-memory.dmp

Filesize
7.7MB

Download
memory/1080-49-0x0000000074A00000-0x00000000751B0000-memory.dmp

Filesize
7.7MB

Download
memory/1080-51-0x0000000006F70000-0x0000000006F8A000-memory.dmp

Filesize
104KB

Download
memory/1096-108-0x0000000006350000-0x00000000066A4000-memory.dmp

Filesize
3.3MB

Download
memory/1120-86-0x0000000070800000-0x000000007084C000-memory.dmp

Filesize
304KB

Download
memory/1892-119-0x0000000070800000-0x000000007084C000-memory.dmp

Filesize
304KB

Download
memory/2388-140-0x00000000008A0000-0x0000000000AF9000-memory.dmp

Filesize
2.3MB

Download
memory/2388-159-0x00000000008A0000-0x0000000000AF9000-memory.dmp

Filesize
2.3MB

Download
memory/2672-71-0x0000000005BD0000-0x0000000005F24000-memory.dmp

Filesize
3.3MB

Download
memory/2752-132-0x0000000074A00000-0x00000000751B0000-memory.dmp

Filesize
7.7MB

Download
memory/2752-34-0x0000000074A0E000-0x0000000074A0F000-memory.dmp

Filesize
4KB

Download
memory/2752-0-0x0000000074A0E000-0x0000000074A0F000-memory.dmp

Filesize
4KB

Download
memory/2752-145-0x0000000074A00000-0x00000000751B0000-memory.dmp

Filesize
7.7MB

Download
memory/2752-1-0x0000000000790000-0x000000000079A000-memory.dmp

Filesize
40KB

Download
memory/4436-20-0x0000000006650000-0x000000000666E000-memory.dmp

Filesize
120KB

Download
memory/4436-65-0x0000000074A00000-0x00000000751B0000-memory.dmp

Filesize
7.7MB

Download
memory/4436-21-0x0000000006680000-0x00000000066CC000-memory.dmp

Filesize
304KB

Download
memory/4436-16-0x0000000006010000-0x0000000006364000-memory.dmp

Filesize
3.3MB

Download
memory/4436-8-0x00000000057A0000-0x0000000005806000-memory.dmp

Filesize
408KB

Download
memory/4436-9-0x0000000074A00000-0x00000000751B0000-memory.dmp

Filesize
7.7MB

Download
memory/4436-7-0x0000000005730000-0x0000000005796000-memory.dmp

Filesize
408KB

Download
memory/4436-6-0x0000000005690000-0x00000000056B2000-memory.dmp

Filesize
136KB

Download
memory/4436-5-0x0000000074A00000-0x00000000751B0000-memory.dmp

Filesize
7.7MB

Download
memory/4436-4-0x00000000058A0000-0x0000000005EC8000-memory.dmp

Filesize
6.2MB

Download
memory/4436-3-0x0000000074A00000-0x00000000751B0000-memory.dmp

Filesize
7.7MB

Download
memory/4436-2-0x00000000050E0000-0x0000000005116000-memory.dmp

Filesize
216KB

Download