stealc | fa4f1c0b324654420f8758b8ab1d7e0db22f0eacbff0d2e14413ed904ca54aaf

Analysis

max time kernel
93s
max time network
149s
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, 21:49

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General

Target

TikTokDesktop18.exe
Size

17.9MB
MD5

81f6b6fe3201c3941bd49243c5896811
SHA1

8bd0d5bb78255fc9f2dcf70fde14dba16c66551c
SHA256

fa4f1c0b324654420f8758b8ab1d7e0db22f0eacbff0d2e14413ed904ca54aaf
SHA512

f3d22c84fb70a2c851f533037b74c45248b9074aa3042371672c89c3ee5229bbdbbc193e54840adbc5f17672430fbbc0b94dd12c8014f3a3ec93fece24e54d4f
SSDEEP

393216:7bbTRUBXu2+WlsaxtBXu2+WlsaxtBXu2+WlsaxtBXu2+Wlsax:7PKBX4mtfBX4mtfBX4mtfBX4mt

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/0x0010000000023cbf-139.dat	family_vidar_v7
behavioral2/memory/1836-143-0x0000000000C90000-0x0000000000EE9000-memory.dmp	family_vidar_v7
behavioral2/memory/1836-161-0x0000000000C90000-0x0000000000EE9000-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
4628	powershell.exe
1116	powershell.exe
1928	powershell.exe
2448	powershell.exe
3916	powershell.exe
320	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	TikTokDesktop18.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	1AVM8vv9.exe

Executes dropped EXE 1 IoCs

pid	Process
1836	1AVM8vv9.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
15	raw.githubusercontent.com
16	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	TikTokDesktop18.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	1AVM8vv9.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	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	1AVM8vv9.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	1AVM8vv9.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
4340	timeout.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
1928	powershell.exe
1928	powershell.exe
2448	powershell.exe
2448	powershell.exe
3916	powershell.exe
3916	powershell.exe
320	powershell.exe
320	powershell.exe
4628	powershell.exe
4628	powershell.exe
1116	powershell.exe
1116	powershell.exe
1836	1AVM8vv9.exe
1836	1AVM8vv9.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	2064	TikTokDesktop18.exe
Token: SeDebugPrivilege	1928	powershell.exe
Token: SeDebugPrivilege	2448	powershell.exe
Token: SeDebugPrivilege	3916	powershell.exe
Token: SeDebugPrivilege	320	powershell.exe
Token: SeDebugPrivilege	4628	powershell.exe
Token: SeDebugPrivilege	1116	powershell.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 2064 wrote to memory of 1928	2064	TikTokDesktop18.exe	84
PID 2064 wrote to memory of 1928	2064	TikTokDesktop18.exe	84
PID 2064 wrote to memory of 1928	2064	TikTokDesktop18.exe	84
PID 1928 wrote to memory of 2448	1928	powershell.exe	86
PID 1928 wrote to memory of 2448	1928	powershell.exe	86
PID 1928 wrote to memory of 2448	1928	powershell.exe	86
PID 2064 wrote to memory of 3916	2064	TikTokDesktop18.exe	87
PID 2064 wrote to memory of 3916	2064	TikTokDesktop18.exe	87
PID 2064 wrote to memory of 3916	2064	TikTokDesktop18.exe	87
PID 3916 wrote to memory of 320	3916	powershell.exe	89
PID 3916 wrote to memory of 320	3916	powershell.exe	89
PID 3916 wrote to memory of 320	3916	powershell.exe	89
PID 2064 wrote to memory of 4628	2064	TikTokDesktop18.exe	90
PID 2064 wrote to memory of 4628	2064	TikTokDesktop18.exe	90
PID 2064 wrote to memory of 4628	2064	TikTokDesktop18.exe	90
PID 4628 wrote to memory of 1116	4628	powershell.exe	92
PID 4628 wrote to memory of 1116	4628	powershell.exe	92
PID 4628 wrote to memory of 1116	4628	powershell.exe	92
PID 2064 wrote to memory of 1836	2064	TikTokDesktop18.exe	94
PID 2064 wrote to memory of 1836	2064	TikTokDesktop18.exe	94
PID 2064 wrote to memory of 1836	2064	TikTokDesktop18.exe	94
PID 1836 wrote to memory of 3468	1836	1AVM8vv9.exe	111
PID 1836 wrote to memory of 3468	1836	1AVM8vv9.exe	111
PID 1836 wrote to memory of 3468	1836	1AVM8vv9.exe	111
PID 3468 wrote to memory of 4340	3468	cmd.exe	113
PID 3468 wrote to memory of 4340	3468	cmd.exe	113
PID 3468 wrote to memory of 4340	3468	cmd.exe	113

C:\Users\Admin\AppData\Local\Temp\TikTokDesktop18.exe
"C:\Users\Admin\AppData\Local\Temp\TikTokDesktop18.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2064
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" powershell -Command "Add-MpPreference -ExclusionPath 'C:\q1HWl0sS'"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1928
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command Add-MpPreference -ExclusionPath C:\q1HWl0sS
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2448
- 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:3916
- - 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:320
- 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:4628
- - 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:1116
- C:\q1HWl0sS\1AVM8vv9.exe
  "C:\q1HWl0sS\1AVM8vv9.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:1836
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\q1HWl0sS\1AVM8vv9.exe" & rd /s /q "C:\ProgramData\DAKEBAKFHCFH" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3468
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:4340

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
10KB

MD5
e55e06e6c6fbf87bf285d6ab7c2d759d

SHA1
c4fd6aae415773088ffd3ee62017a52f5b1d84c3

SHA256
6eb45540bdc3f744b7851fe78d162fb3ad4be7310b8c4ad408f3234e6a63ad40

SHA512
072238a9447e96e598ef13bdd99e9a612fa7f63b032b00407c9d6cd599a3482435bac2c47d4ba23bddfaadb6a9494f118cbd303bfb662768a4b5d114fd4fc327

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

Filesize
11KB

MD5
a7f870f3b794c84a651c25d193412165

SHA1
39de43d68a836bf81f9f3d4768b2ce6bbe48a34b

SHA256
96b8a457dc05d16ceeec06226d9b221dd2aea448295a757ed48c75cff5c6226b

SHA512
214c5fa2fcb4575453613d5b911181c813648fc2b2215ffabe7e4300c26fda960f3cc7203e54cab2d21ab3b352600073867975a47dd11887c3083a69ec65c3b6

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

Filesize
11KB

MD5
194e42b88a7425315154a78cdffd16a4

SHA1
6efe598899ab786826101697e8c8048beacd4962

SHA256
0207cae0f7884b8b45d4c2ad229d5d2d1b6268f6913fb1ae227050ade1692b22

SHA512
c5ade3f97e2cc5a861b578357553dbdd4b311fd92292320b5328ef6ae0f1c67916243339a0826f84e5950c450ae84e2bfabc6810299d846cbcbbff45f4975016

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

Filesize
11KB

MD5
6f87ca9f8ffcdc2e74407b7685f6f0b3

SHA1
12a51824c4b0bb830e7028e86d6811231267ffd9

SHA256
f87e62276248929552270fdd9b85dcf5677bd3811a0aba59deed76bce7b5e035

SHA512
605110f46d306a903b18b20d7459da210e2ee247de833d60ab678032e811ea19a1e40384ccdc34f95e2ef8ed6283ce01291ebcc0aff929a427408bfcc4e43363

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_augntybj.0id.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\q1HWl0sS\1AVM8vv9.exe

Filesize
275KB

MD5
0a7b3454fdad8431bd3523648c915665

SHA1
800a97a7c1a92a92cac76afc1fe5349895ee5287

SHA256
baf217d7bb8f3a86856def6891638318a94ed5d7082149d4dd4cb755d90d86ce

SHA512
020e45eaeee083d6739155d9a821ab54dd07f1320b8efb73871ee5d29188122fdbb7d39b34a8b3694a8b0c08ae1801ec370e40ff8d837c9190a72905f26baff9

Download Submit
memory/320-89-0x0000000070A90000-0x0000000070ADC000-memory.dmp

Filesize
304KB

Download
memory/1116-122-0x0000000070A90000-0x0000000070ADC000-memory.dmp

Filesize
304KB

Download
memory/1836-161-0x0000000000C90000-0x0000000000EE9000-memory.dmp

Filesize
2.3MB

Download
memory/1836-143-0x0000000000C90000-0x0000000000EE9000-memory.dmp

Filesize
2.3MB

Download
memory/1928-61-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/1928-20-0x0000000006110000-0x0000000006464000-memory.dmp

Filesize
3.3MB

Download
memory/1928-21-0x0000000006670000-0x000000000668E000-memory.dmp

Filesize
120KB

Download
memory/1928-22-0x0000000006690000-0x00000000066DC000-memory.dmp

Filesize
304KB

Download
memory/1928-3-0x0000000002D80000-0x0000000002DB6000-memory.dmp

Filesize
216KB

Download
memory/1928-4-0x00000000059E0000-0x0000000006008000-memory.dmp

Filesize
6.2MB

Download
memory/1928-5-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/1928-6-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/1928-7-0x00000000056A0000-0x00000000056C2000-memory.dmp

Filesize
136KB

Download
memory/1928-15-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/1928-68-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/1928-14-0x00000000058E0000-0x0000000005946000-memory.dmp

Filesize
408KB

Download
memory/1928-13-0x0000000005870000-0x00000000058D6000-memory.dmp

Filesize
408KB

Download
memory/2064-56-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/2064-0-0x0000000074C9E000-0x0000000074C9F000-memory.dmp

Filesize
4KB

Download
memory/2064-1-0x0000000000FD0000-0x00000000021BA000-memory.dmp

Filesize
17.9MB

Download
memory/2064-147-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/2064-2-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/2064-55-0x0000000074C9E000-0x0000000074C9F000-memory.dmp

Filesize
4KB

Download
memory/2448-49-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/2448-46-0x0000000006090000-0x00000000060AE000-memory.dmp

Filesize
120KB

Download
memory/2448-58-0x0000000007040000-0x0000000007054000-memory.dmp

Filesize
80KB

Download
memory/2448-59-0x0000000007140000-0x000000000715A000-memory.dmp

Filesize
104KB

Download
memory/2448-60-0x0000000007120000-0x0000000007128000-memory.dmp

Filesize
32KB

Download
memory/2448-50-0x00000000074A0000-0x0000000007B1A000-memory.dmp

Filesize
6.5MB

Download
memory/2448-64-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/2448-51-0x0000000006DF0000-0x0000000006E0A000-memory.dmp

Filesize
104KB

Download
memory/2448-48-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/2448-47-0x0000000006AB0000-0x0000000006B53000-memory.dmp

Filesize
652KB

Download
memory/2448-52-0x0000000006E70000-0x0000000006E7A000-memory.dmp

Filesize
40KB

Download
memory/2448-57-0x0000000007030000-0x000000000703E000-memory.dmp

Filesize
56KB

Download
memory/2448-35-0x0000000006A60000-0x0000000006A92000-memory.dmp

Filesize
200KB

Download
memory/2448-53-0x0000000007080000-0x0000000007116000-memory.dmp

Filesize
600KB

Download
memory/2448-36-0x0000000070A90000-0x0000000070ADC000-memory.dmp

Filesize
304KB

Download
memory/2448-25-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/2448-24-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/2448-23-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/2448-54-0x0000000007000000-0x0000000007011000-memory.dmp

Filesize
68KB

Download
memory/3916-74-0x00000000056C0000-0x0000000005A14000-memory.dmp

Filesize
3.3MB

Download
memory/4628-111-0x0000000006050000-0x00000000063A4000-memory.dmp

Filesize
3.3MB

Download