stealc | f07f39ca504a15d670eecad52c272ed5cdc4025fede61cd910d7da2a55d1d052

Analysis

max time kernel
95s
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 21:40

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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

Processes:

resource	yara_rule
behavioral2/files/0x0011000000023cb5-139.dat	family_vidar_v7
behavioral2/memory/3052-142-0x0000000000AC0000-0x0000000000D19000-memory.dmp	family_vidar_v7
behavioral2/memory/3052-161-0x0000000000AC0000-0x0000000000D19000-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

Processes:

powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exe

pid	Process
2328	powershell.exe
1468	powershell.exe
3012	powershell.exe
4076	powershell.exe
2972	powershell.exe
4832	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

Processes:

TTDesktop18.exeGMKegQUIu.exe

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	GMKegQUIu.exe

Executes dropped EXE 1 IoCs

Processes:

GMKegQUIu.exe

pid	Process
3052	GMKegQUIu.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

Processes:

flow	ioc
26	raw.githubusercontent.com
27	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

Processes:

timeout.exeTTDesktop18.exepowershell.exepowershell.exepowershell.exepowershell.exeGMKegQUIu.exepowershell.exepowershell.execmd.exe

description	ioc	Process
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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	GMKegQUIu.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

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:

GMKegQUIu.exe

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

Delays execution with timeout.exe 1 IoCs

evasion

Processes:

timeout.exe

pid	Process
4400	timeout.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeGMKegQUIu.exe

pid	Process
2328	powershell.exe
2328	powershell.exe
1468	powershell.exe
1468	powershell.exe
3012	powershell.exe
3012	powershell.exe
4076	powershell.exe
4076	powershell.exe
2972	powershell.exe
2972	powershell.exe
4832	powershell.exe
4832	powershell.exe
3052	GMKegQUIu.exe
3052	GMKegQUIu.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeTTDesktop18.exe

description	pid	Process
Token: SeDebugPrivilege	2328	powershell.exe
Token: SeDebugPrivilege	1468	powershell.exe
Token: SeDebugPrivilege	3012	powershell.exe
Token: SeDebugPrivilege	4076	powershell.exe
Token: SeDebugPrivilege	2972	powershell.exe
Token: SeDebugPrivilege	4832	powershell.exe
Token: SeDebugPrivilege	1612	TTDesktop18.exe

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

TTDesktop18.exepowershell.exepowershell.exepowershell.exeGMKegQUIu.execmd.exe

description	pid	Process	procid_target
PID 1612 wrote to memory of 2328	1612	TTDesktop18.exe	85
PID 1612 wrote to memory of 2328	1612	TTDesktop18.exe	85
PID 1612 wrote to memory of 2328	1612	TTDesktop18.exe	85
PID 2328 wrote to memory of 1468	2328	powershell.exe	87
PID 2328 wrote to memory of 1468	2328	powershell.exe	87
PID 2328 wrote to memory of 1468	2328	powershell.exe	87
PID 1612 wrote to memory of 3012	1612	TTDesktop18.exe	93
PID 1612 wrote to memory of 3012	1612	TTDesktop18.exe	93
PID 1612 wrote to memory of 3012	1612	TTDesktop18.exe	93
PID 3012 wrote to memory of 4076	3012	powershell.exe	95
PID 3012 wrote to memory of 4076	3012	powershell.exe	95
PID 3012 wrote to memory of 4076	3012	powershell.exe	95
PID 1612 wrote to memory of 2972	1612	TTDesktop18.exe	98
PID 1612 wrote to memory of 2972	1612	TTDesktop18.exe	98
PID 1612 wrote to memory of 2972	1612	TTDesktop18.exe	98
PID 2972 wrote to memory of 4832	2972	powershell.exe	100
PID 2972 wrote to memory of 4832	2972	powershell.exe	100
PID 2972 wrote to memory of 4832	2972	powershell.exe	100
PID 1612 wrote to memory of 3052	1612	TTDesktop18.exe	106
PID 1612 wrote to memory of 3052	1612	TTDesktop18.exe	106
PID 1612 wrote to memory of 3052	1612	TTDesktop18.exe	106
PID 3052 wrote to memory of 5100	3052	GMKegQUIu.exe	111
PID 3052 wrote to memory of 5100	3052	GMKegQUIu.exe	111
PID 3052 wrote to memory of 5100	3052	GMKegQUIu.exe	111
PID 5100 wrote to memory of 4400	5100	cmd.exe	113
PID 5100 wrote to memory of 4400	5100	cmd.exe	113
PID 5100 wrote to memory of 4400	5100	cmd.exe	113

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:1612
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" powershell -Command "Add-MpPreference -ExclusionPath 'C:\XcSjxUvs'"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2328
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command Add-MpPreference -ExclusionPath C:\XcSjxUvs
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1468
- 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:3012
- - 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:4076
- 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:2972
- - 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:4832
- C:\XcSjxUvs\GMKegQUIu.exe
  "C:\XcSjxUvs\GMKegQUIu.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:3052
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\XcSjxUvs\GMKegQUIu.exe" & rd /s /q "C:\ProgramData\JJJEBGDAFHJE" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:5100
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:4400

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
070e4b773f38a1ce8f7e5afa51befcd8

SHA1
250874bc012434d296dcfd32b77a1f2da8cfe8aa

SHA256
71a4719d1e7f4e3c51d78bc8a92503a7dba031b4e92bb18f65688a4bcf501e57

SHA512
7de3508a22c8ac9aced6ec3f7e2811032d5bb809d3af4aa2310ec217ce72e9d53ea37d4fb7a5ddf71dd27bf4a3cb19f5437835fc982d088a08c674e00af76df3

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

Filesize
11KB

MD5
282fdd74efc22393ca96467493bbf5f1

SHA1
0338da866ff7233e65debab2a334bb967d14d8ca

SHA256
f5210ddb6e0dcfc1d3ffae0aa48928aa7bbf8916285160ae95ebc81e4a2e06b0

SHA512
7721a4b5a4aefecaf12625c7e3b80428a157fddb7ca1f3990a122cbfb53c6a777d463c01238bf9cf0cf632b02ab7115cdec25c52533cfe54250f7af991c115c9

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

Filesize
11KB

MD5
413506840c5be004f74041ccc4610c48

SHA1
a4ab74d2584b0a141a0bb50ec470bcc2dff017ad

SHA256
ded19ac82ef641479b21a010495464c4b02d45cee4f2e2dd56fd1f65c6c6aa88

SHA512
7c1eac859adf1edd46be3d646353cdf93593158c06708d26058f743f09e0b90c8bfab57ce9e28d002fd6545cf2ef2bfdba13364dc0bf35f413668d4719974433

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ls31juk2.c0g.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\XcSjxUvs\GMKegQUIu.exe

Filesize
275KB

MD5
0a7b3454fdad8431bd3523648c915665

SHA1
800a97a7c1a92a92cac76afc1fe5349895ee5287

SHA256
baf217d7bb8f3a86856def6891638318a94ed5d7082149d4dd4cb755d90d86ce

SHA512
020e45eaeee083d6739155d9a821ab54dd07f1320b8efb73871ee5d29188122fdbb7d39b34a8b3694a8b0c08ae1801ec370e40ff8d837c9190a72905f26baff9

Download Submit
memory/1468-50-0x0000000007620000-0x00000000076C3000-memory.dmp

Filesize
652KB

Download
memory/1468-52-0x0000000007750000-0x000000000776A000-memory.dmp

Filesize
104KB

Download
memory/1468-63-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/1468-59-0x0000000007A70000-0x0000000007A78000-memory.dmp

Filesize
32KB

Download
memory/1468-58-0x0000000007A90000-0x0000000007AAA000-memory.dmp

Filesize
104KB

Download
memory/1468-57-0x0000000007990000-0x00000000079A4000-memory.dmp

Filesize
80KB

Download
memory/1468-56-0x0000000007980000-0x000000000798E000-memory.dmp

Filesize
56KB

Download
memory/1468-55-0x0000000007950000-0x0000000007961000-memory.dmp

Filesize
68KB

Download
memory/1468-22-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/1468-23-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/1468-24-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/1468-54-0x00000000079D0000-0x0000000007A66000-memory.dmp

Filesize
600KB

Download
memory/1468-36-0x0000000071010000-0x000000007105C000-memory.dmp

Filesize
304KB

Download
memory/1468-35-0x00000000075E0000-0x0000000007612000-memory.dmp

Filesize
200KB

Download
memory/1468-46-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/1468-48-0x00000000069D0000-0x00000000069EE000-memory.dmp

Filesize
120KB

Download
memory/1468-47-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/1468-49-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/1468-53-0x00000000077C0000-0x00000000077CA000-memory.dmp

Filesize
40KB

Download
memory/1468-51-0x0000000007D90000-0x000000000840A000-memory.dmp

Filesize
6.5MB

Download
memory/1612-34-0x000000007521E000-0x000000007521F000-memory.dmp

Filesize
4KB

Download
memory/1612-0-0x000000007521E000-0x000000007521F000-memory.dmp

Filesize
4KB

Download
memory/1612-147-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/1612-1-0x00000000007F0000-0x00000000007FA000-memory.dmp

Filesize
40KB

Download
memory/1612-134-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/2328-4-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/2328-2-0x0000000002270000-0x00000000022A6000-memory.dmp

Filesize
216KB

Download
memory/2328-9-0x0000000004CE0000-0x0000000004D46000-memory.dmp

Filesize
408KB

Download
memory/2328-60-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/2328-8-0x0000000004C70000-0x0000000004CD6000-memory.dmp

Filesize
408KB

Download
memory/2328-5-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/2328-15-0x0000000005550000-0x00000000058A4000-memory.dmp

Filesize
3.3MB

Download
memory/2328-67-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/2328-7-0x0000000004BD0000-0x0000000004BF2000-memory.dmp

Filesize
136KB

Download
memory/2328-21-0x0000000005BD0000-0x0000000005C1C000-memory.dmp

Filesize
304KB

Download
memory/2328-3-0x0000000004F10000-0x0000000005538000-memory.dmp

Filesize
6.2MB

Download
memory/2328-20-0x0000000005BB0000-0x0000000005BCE000-memory.dmp

Filesize
120KB

Download
memory/2328-6-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/2972-110-0x00000000061E0000-0x0000000006534000-memory.dmp

Filesize
3.3MB

Download
memory/3012-68-0x00000000057F0000-0x0000000005B44000-memory.dmp

Filesize
3.3MB

Download
memory/3052-142-0x0000000000AC0000-0x0000000000D19000-memory.dmp

Filesize
2.3MB

Download
memory/3052-161-0x0000000000AC0000-0x0000000000D19000-memory.dmp

Filesize
2.3MB

Download
memory/4076-88-0x0000000071010000-0x000000007105C000-memory.dmp

Filesize
304KB

Download
memory/4832-121-0x0000000071010000-0x000000007105C000-memory.dmp

Filesize
304KB

Download