stealc | 12ca4ad8cd613c8d086cd39a5c6e787c12209f2271ba850817b72eae3cd559da

Analysis

max time kernel
95s
max time network
152s
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

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

InstalIеr-x86/TTDesktop18.exe
Size

26.0MB
MD5

13eb2bb3303156d695ecf3f2b2c09eb7
SHA1

db1f2877681d02201c6c9d71d8c52a872c3612b9
SHA256

8680e9ff0246c2b7cd4a45a9c6262851ce8d12e4638e48cb1baec267c2b6ea6b
SHA512

6f44a7f1612f0eb4843c1e0de757a03f53d2b14e7aa8b7f983c2ca9baf0701d30f129edeab9c889655840782a1289fb4d0bf0699223e3c584afdaa4ee5172172
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
behavioral8/files/0x0011000000023cb5-138.dat	family_vidar_v7
behavioral8/memory/4468-141-0x0000000000940000-0x0000000000B99000-memory.dmp	family_vidar_v7
behavioral8/memory/4468-160-0x0000000000940000-0x0000000000B99000-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
1768	powershell.exe
2680	powershell.exe
2400	powershell.exe
4004	powershell.exe
2940	powershell.exe
1724	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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	TTDesktop18.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	KxyPkgtUs.exe

Executes dropped EXE 1 IoCs

pid	Process
4468	KxyPkgtUs.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
23	raw.githubusercontent.com
24	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	KxyPkgtUs.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	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	KxyPkgtUs.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	KxyPkgtUs.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
444	timeout.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
1724	powershell.exe
1724	powershell.exe
1768	powershell.exe
1768	powershell.exe
2680	powershell.exe
2680	powershell.exe
2400	powershell.exe
2400	powershell.exe
4004	powershell.exe
4004	powershell.exe
2940	powershell.exe
2940	powershell.exe
4468	KxyPkgtUs.exe
4468	KxyPkgtUs.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	1724	powershell.exe
Token: SeDebugPrivilege	1768	powershell.exe
Token: SeDebugPrivilege	2680	powershell.exe
Token: SeDebugPrivilege	2400	powershell.exe
Token: SeDebugPrivilege	4004	powershell.exe
Token: SeDebugPrivilege	2940	powershell.exe
Token: SeDebugPrivilege	748	TTDesktop18.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 748 wrote to memory of 1724	748	TTDesktop18.exe	83
PID 748 wrote to memory of 1724	748	TTDesktop18.exe	83
PID 748 wrote to memory of 1724	748	TTDesktop18.exe	83
PID 1724 wrote to memory of 1768	1724	powershell.exe	85
PID 1724 wrote to memory of 1768	1724	powershell.exe	85
PID 1724 wrote to memory of 1768	1724	powershell.exe	85
PID 748 wrote to memory of 2680	748	TTDesktop18.exe	90
PID 748 wrote to memory of 2680	748	TTDesktop18.exe	90
PID 748 wrote to memory of 2680	748	TTDesktop18.exe	90
PID 2680 wrote to memory of 2400	2680	powershell.exe	92
PID 2680 wrote to memory of 2400	2680	powershell.exe	92
PID 2680 wrote to memory of 2400	2680	powershell.exe	92
PID 748 wrote to memory of 4004	748	TTDesktop18.exe	94
PID 748 wrote to memory of 4004	748	TTDesktop18.exe	94
PID 748 wrote to memory of 4004	748	TTDesktop18.exe	94
PID 4004 wrote to memory of 2940	4004	powershell.exe	96
PID 4004 wrote to memory of 2940	4004	powershell.exe	96
PID 4004 wrote to memory of 2940	4004	powershell.exe	96
PID 748 wrote to memory of 4468	748	TTDesktop18.exe	99
PID 748 wrote to memory of 4468	748	TTDesktop18.exe	99
PID 748 wrote to memory of 4468	748	TTDesktop18.exe	99
PID 4468 wrote to memory of 4708	4468	KxyPkgtUs.exe	102
PID 4468 wrote to memory of 4708	4468	KxyPkgtUs.exe	102
PID 4468 wrote to memory of 4708	4468	KxyPkgtUs.exe	102
PID 4708 wrote to memory of 444	4708	cmd.exe	104
PID 4708 wrote to memory of 444	4708	cmd.exe	104
PID 4708 wrote to memory of 444	4708	cmd.exe	104

C:\Users\Admin\AppData\Local\Temp\InstalIеr-x86\TTDesktop18.exe
"C:\Users\Admin\AppData\Local\Temp\InstalIеr-x86\TTDesktop18.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:748
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" powershell -Command "Add-MpPreference -ExclusionPath 'C:\hCnjrfERx'"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1724
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command Add-MpPreference -ExclusionPath C:\hCnjrfERx
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1768
- 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:2680
- - 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:2400
- 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:4004
- - 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:2940
- C:\hCnjrfERx\KxyPkgtUs.exe
  "C:\hCnjrfERx\KxyPkgtUs.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:4468
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\hCnjrfERx\KxyPkgtUs.exe" & rd /s /q "C:\ProgramData\IJJJEBFHDBGI" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4708
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:444

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

Loading Replay Monitor...

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
cbadccd83d4c14f45f9a94c38961adb2

SHA1
4d0a046fe7cf3d1d0a8f2add9dd2d77bbb398610

SHA256
d1f9b324d2034d039ebbf25a778c2979e268b33a357d68bcd5813b3004786938

SHA512
95c8842a2b0fca15270fa30b722cd2e3f2ee2d900d1145028232c596f7ef11fda1702cae5d21a2fc946be588b92150d044ad0512d0d00501db7b80876f2efe76

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

Filesize
11KB

MD5
c67bbe857b70cf9d5f4bdd15243ade38

SHA1
0c12e7bf356b3ad2ff0ec49e0eea629386b92326

SHA256
cbd4c3c72d9dc9ae23496a99d0f6d80d66e375fee5ae94b4aa06c374dfe40266

SHA512
747e5af9fcf82a8e1e21f2e1196b433ef13eee09095ad3a7b28613792ffcad78e00af020b251d0c559afc3a2826c616b392c975d75b6b88606b6bece3e58e7a3

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wkfo0tmo.t54.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\hCnjrfERx\KxyPkgtUs.exe

Filesize
275KB

MD5
0a7b3454fdad8431bd3523648c915665

SHA1
800a97a7c1a92a92cac76afc1fe5349895ee5287

SHA256
baf217d7bb8f3a86856def6891638318a94ed5d7082149d4dd4cb755d90d86ce

SHA512
020e45eaeee083d6739155d9a821ab54dd07f1320b8efb73871ee5d29188122fdbb7d39b34a8b3694a8b0c08ae1801ec370e40ff8d837c9190a72905f26baff9

Download Submit
memory/748-0-0x00000000749CE000-0x00000000749CF000-memory.dmp

Filesize
4KB

Download
memory/748-1-0x0000000000210000-0x000000000021A000-memory.dmp

Filesize
40KB

Download
memory/748-146-0x00000000749C0000-0x0000000075170000-memory.dmp

Filesize
7.7MB

Download
memory/748-133-0x00000000749C0000-0x0000000075170000-memory.dmp

Filesize
7.7MB

Download
memory/748-34-0x00000000749CE000-0x00000000749CF000-memory.dmp

Filesize
4KB

Download
memory/1724-20-0x00000000062A0000-0x00000000062BE000-memory.dmp

Filesize
120KB

Download
memory/1724-15-0x0000000005C80000-0x0000000005FD4000-memory.dmp

Filesize
3.3MB

Download
memory/1724-21-0x00000000062D0000-0x000000000631C000-memory.dmp

Filesize
304KB

Download
memory/1724-2-0x0000000002990000-0x00000000029C6000-memory.dmp

Filesize
216KB

Download
memory/1724-4-0x0000000005380000-0x00000000059A8000-memory.dmp

Filesize
6.2MB

Download
memory/1724-3-0x00000000749C0000-0x0000000075170000-memory.dmp

Filesize
7.7MB

Download
memory/1724-8-0x0000000005B20000-0x0000000005B86000-memory.dmp

Filesize
408KB

Download
memory/1724-5-0x00000000749C0000-0x0000000075170000-memory.dmp

Filesize
7.7MB

Download
memory/1724-6-0x00000000749C0000-0x0000000075170000-memory.dmp

Filesize
7.7MB

Download
memory/1724-66-0x00000000749C0000-0x0000000075170000-memory.dmp

Filesize
7.7MB

Download
memory/1724-7-0x00000000052F0000-0x0000000005312000-memory.dmp

Filesize
136KB

Download
memory/1724-9-0x0000000005B90000-0x0000000005BF6000-memory.dmp

Filesize
408KB

Download
memory/1724-62-0x00000000749C0000-0x0000000075170000-memory.dmp

Filesize
7.7MB

Download
memory/1768-56-0x0000000007AE0000-0x0000000007AF4000-memory.dmp

Filesize
80KB

Download
memory/1768-47-0x0000000007500000-0x000000000751E000-memory.dmp

Filesize
120KB

Download
memory/1768-52-0x0000000007910000-0x000000000791A000-memory.dmp

Filesize
40KB

Download
memory/1768-53-0x0000000007B20000-0x0000000007BB6000-memory.dmp

Filesize
600KB

Download
memory/1768-54-0x0000000007AA0000-0x0000000007AB1000-memory.dmp

Filesize
68KB

Download
memory/1768-55-0x0000000007AD0000-0x0000000007ADE000-memory.dmp

Filesize
56KB

Download
memory/1768-51-0x00000000078A0000-0x00000000078BA000-memory.dmp

Filesize
104KB

Download
memory/1768-57-0x0000000007BE0000-0x0000000007BFA000-memory.dmp

Filesize
104KB

Download
memory/1768-58-0x0000000007BC0000-0x0000000007BC8000-memory.dmp

Filesize
32KB

Download
memory/1768-61-0x00000000749C0000-0x0000000075170000-memory.dmp

Filesize
7.7MB

Download
memory/1768-49-0x0000000007560000-0x0000000007603000-memory.dmp

Filesize
652KB

Download
memory/1768-48-0x00000000749C0000-0x0000000075170000-memory.dmp

Filesize
7.7MB

Download
memory/1768-46-0x00000000749C0000-0x0000000075170000-memory.dmp

Filesize
7.7MB

Download
memory/1768-50-0x0000000007EE0000-0x000000000855A000-memory.dmp

Filesize
6.5MB

Download
memory/1768-22-0x00000000749C0000-0x0000000075170000-memory.dmp

Filesize
7.7MB

Download
memory/1768-23-0x00000000749C0000-0x0000000075170000-memory.dmp

Filesize
7.7MB

Download
memory/1768-35-0x0000000007520000-0x0000000007552000-memory.dmp

Filesize
200KB

Download
memory/1768-24-0x00000000749C0000-0x0000000075170000-memory.dmp

Filesize
7.7MB

Download
memory/1768-36-0x00000000707C0000-0x000000007080C000-memory.dmp

Filesize
304KB

Download
memory/2400-87-0x00000000707C0000-0x000000007080C000-memory.dmp

Filesize
304KB

Download
memory/2680-67-0x0000000005B00000-0x0000000005E54000-memory.dmp

Filesize
3.3MB

Download
memory/2940-120-0x00000000707C0000-0x000000007080C000-memory.dmp

Filesize
304KB

Download
memory/4004-109-0x0000000005F50000-0x00000000062A4000-memory.dmp

Filesize
3.3MB

Download
memory/4468-141-0x0000000000940000-0x0000000000B99000-memory.dmp

Filesize
2.3MB

Download
memory/4468-160-0x0000000000940000-0x0000000000B99000-memory.dmp

Filesize
2.3MB

Download