stealc | f07f39ca504a15d670eecad52c272ed5cdc4025fede61cd910d7da2a55d1d052

Analysis

max time kernel
92s
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
30-11-2024 21:47

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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
behavioral2/files/0x0007000000023ca1-137.dat	family_vidar_v7
behavioral2/memory/3512-144-0x00000000004B0000-0x0000000000709000-memory.dmp	family_vidar_v7
behavioral2/memory/3512-159-0x00000000004B0000-0x0000000000709000-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
2328	powershell.exe
4576	powershell.exe
1948	powershell.exe
1936	powershell.exe
3936	powershell.exe
1076	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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	TTDesktop18.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	xPxSyQgG.exe

Executes dropped EXE 1 IoCs

pid	Process
3512	xPxSyQgG.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
20	raw.githubusercontent.com
21	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	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	xPxSyQgG.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	xPxSyQgG.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	xPxSyQgG.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3440	timeout.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
3936	powershell.exe
3936	powershell.exe
1076	powershell.exe
1076	powershell.exe
2328	powershell.exe
2328	powershell.exe
4576	powershell.exe
4576	powershell.exe
1948	powershell.exe
1948	powershell.exe
1936	powershell.exe
1936	powershell.exe
3512	xPxSyQgG.exe
3512	xPxSyQgG.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	3936	powershell.exe
Token: SeDebugPrivilege	1076	powershell.exe
Token: SeDebugPrivilege	2328	powershell.exe
Token: SeDebugPrivilege	4576	powershell.exe
Token: SeDebugPrivilege	1948	powershell.exe
Token: SeDebugPrivilege	1936	powershell.exe
Token: SeDebugPrivilege	2692	TTDesktop18.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 2692 wrote to memory of 3936	2692	TTDesktop18.exe	83
PID 2692 wrote to memory of 3936	2692	TTDesktop18.exe	83
PID 2692 wrote to memory of 3936	2692	TTDesktop18.exe	83
PID 3936 wrote to memory of 1076	3936	powershell.exe	85
PID 3936 wrote to memory of 1076	3936	powershell.exe	85
PID 3936 wrote to memory of 1076	3936	powershell.exe	85
PID 2692 wrote to memory of 2328	2692	TTDesktop18.exe	86
PID 2692 wrote to memory of 2328	2692	TTDesktop18.exe	86
PID 2692 wrote to memory of 2328	2692	TTDesktop18.exe	86
PID 2328 wrote to memory of 4576	2328	powershell.exe	88
PID 2328 wrote to memory of 4576	2328	powershell.exe	88
PID 2328 wrote to memory of 4576	2328	powershell.exe	88
PID 2692 wrote to memory of 1948	2692	TTDesktop18.exe	91
PID 2692 wrote to memory of 1948	2692	TTDesktop18.exe	91
PID 2692 wrote to memory of 1948	2692	TTDesktop18.exe	91
PID 1948 wrote to memory of 1936	1948	powershell.exe	93
PID 1948 wrote to memory of 1936	1948	powershell.exe	93
PID 1948 wrote to memory of 1936	1948	powershell.exe	93
PID 2692 wrote to memory of 3512	2692	TTDesktop18.exe	99
PID 2692 wrote to memory of 3512	2692	TTDesktop18.exe	99
PID 2692 wrote to memory of 3512	2692	TTDesktop18.exe	99
PID 3512 wrote to memory of 2144	3512	xPxSyQgG.exe	102
PID 3512 wrote to memory of 2144	3512	xPxSyQgG.exe	102
PID 3512 wrote to memory of 2144	3512	xPxSyQgG.exe	102
PID 2144 wrote to memory of 3440	2144	cmd.exe	104
PID 2144 wrote to memory of 3440	2144	cmd.exe	104
PID 2144 wrote to memory of 3440	2144	cmd.exe	104

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:2692
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" powershell -Command "Add-MpPreference -ExclusionPath 'C:\ZntiNTMMAT'"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3936
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command Add-MpPreference -ExclusionPath C:\ZntiNTMMAT
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1076
- 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:2328
- - 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:4576
- 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:1948
- - 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:1936
- C:\ZntiNTMMAT\xPxSyQgG.exe
  "C:\ZntiNTMMAT\xPxSyQgG.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:3512
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\ZntiNTMMAT\xPxSyQgG.exe" & rd /s /q "C:\ProgramData\BGHCGCAEBFIJ" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2144
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:3440

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
11KB

MD5
0fc2d7b939f6d77759e1881a9ea4d3b5

SHA1
a794694f57bc2d9bfb63f3b50a635da93b97e698

SHA256
ff011627bccf3b31050f7896d9187fa5c1a3f630a234ede3540a7ce9442e8aa2

SHA512
4bc2d3850d2e19a1d2c6a575cbed971dd54ea00e433a5c763ed5030725da84f471ffed2ab1d2aab63441da9c9a702b227723db42659b4986581dd29c5939d92f

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

Filesize
11KB

MD5
2874a243aa1878c04dd03143ac6ffdc2

SHA1
59d01ed77b13ffa90b5a82a21a39722b2ade3add

SHA256
29f2d246904d041911482fa6a436ceee28cdbc0939d1bf274ef80ceab034bfff

SHA512
1af2062ec9463db908e510958ded5387971c41b9b963fa691e76ea437409722639c6139b0d96ec520a9e7e008e85275ce7e20cc203c82b4d6fec11fe8932aff7

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

Filesize
11KB

MD5
157547ec0330e97603cfc16ded3e8281

SHA1
9a52dbb6f3da629850a8a66077a50cbdc888756c

SHA256
286362755642625ede2da2eab013ae4a12af1df8311aeb750978ac3a5af8c286

SHA512
8bc84d313b7a950e76259f50588f30962f0d1d15a48e45ef40613b31b0edb595f79e34036e264eb24e55c2fa9b5072b6ee1035f7c11a2150d1da67e533397d23

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ymkovxc1.qsg.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\ZntiNTMMAT\xPxSyQgG.exe

Filesize
275KB

MD5
0a7b3454fdad8431bd3523648c915665

SHA1
800a97a7c1a92a92cac76afc1fe5349895ee5287

SHA256
baf217d7bb8f3a86856def6891638318a94ed5d7082149d4dd4cb755d90d86ce

SHA512
020e45eaeee083d6739155d9a821ab54dd07f1320b8efb73871ee5d29188122fdbb7d39b34a8b3694a8b0c08ae1801ec370e40ff8d837c9190a72905f26baff9

Download Submit
memory/1076-50-0x0000000008180000-0x00000000087FA000-memory.dmp

Filesize
6.5MB

Download
memory/1076-47-0x0000000007780000-0x000000000779E000-memory.dmp

Filesize
120KB

Download
memory/1076-61-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/1076-58-0x0000000007E50000-0x0000000007E58000-memory.dmp

Filesize
32KB

Download
memory/1076-57-0x0000000007E70000-0x0000000007E8A000-memory.dmp

Filesize
104KB

Download
memory/1076-56-0x0000000007D70000-0x0000000007D84000-memory.dmp

Filesize
80KB

Download
memory/1076-55-0x0000000007D60000-0x0000000007D6E000-memory.dmp

Filesize
56KB

Download
memory/1076-54-0x0000000007D30000-0x0000000007D41000-memory.dmp

Filesize
68KB

Download
memory/1076-22-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/1076-23-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/1076-24-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/1076-53-0x0000000007DB0000-0x0000000007E46000-memory.dmp

Filesize
600KB

Download
memory/1076-35-0x00000000077A0000-0x00000000077D2000-memory.dmp

Filesize
200KB

Download
memory/1076-36-0x0000000071020000-0x000000007106C000-memory.dmp

Filesize
304KB

Download
memory/1076-42-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/1076-52-0x0000000007BB0000-0x0000000007BBA000-memory.dmp

Filesize
40KB

Download
memory/1076-48-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/1076-49-0x00000000079E0000-0x0000000007A83000-memory.dmp

Filesize
652KB

Download
memory/1076-51-0x0000000007B30000-0x0000000007B4A000-memory.dmp

Filesize
104KB

Download
memory/1936-119-0x0000000071020000-0x000000007106C000-memory.dmp

Filesize
304KB

Download
memory/1948-108-0x0000000005B70000-0x0000000005EC4000-memory.dmp

Filesize
3.3MB

Download
memory/2328-75-0x0000000005BA0000-0x0000000005EF4000-memory.dmp

Filesize
3.3MB

Download
memory/2692-132-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/2692-34-0x000000007522E000-0x000000007522F000-memory.dmp

Filesize
4KB

Download
memory/2692-0-0x000000007522E000-0x000000007522F000-memory.dmp

Filesize
4KB

Download
memory/2692-145-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/2692-1-0x0000000000BF0000-0x0000000000BFA000-memory.dmp

Filesize
40KB

Download
memory/3512-159-0x00000000004B0000-0x0000000000709000-memory.dmp

Filesize
2.3MB

Download
memory/3512-144-0x00000000004B0000-0x0000000000709000-memory.dmp

Filesize
2.3MB

Download
memory/3936-20-0x00000000060C0000-0x00000000060DE000-memory.dmp

Filesize
120KB

Download
memory/3936-65-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/3936-21-0x00000000060F0000-0x000000000613C000-memory.dmp

Filesize
304KB

Download
memory/3936-19-0x0000000005AD0000-0x0000000005E24000-memory.dmp

Filesize
3.3MB

Download
memory/3936-9-0x0000000005A60000-0x0000000005AC6000-memory.dmp

Filesize
408KB

Download
memory/3936-8-0x00000000059F0000-0x0000000005A56000-memory.dmp

Filesize
408KB

Download
memory/3936-7-0x0000000005100000-0x0000000005122000-memory.dmp

Filesize
136KB

Download
memory/3936-6-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/3936-5-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/3936-3-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/3936-4-0x00000000051D0000-0x00000000057F8000-memory.dmp

Filesize
6.2MB

Download
memory/3936-2-0x0000000004B20000-0x0000000004B56000-memory.dmp

Filesize
216KB

Download
memory/4576-86-0x0000000071020000-0x000000007106C000-memory.dmp

Filesize
304KB

Download