stealc | fc812abc241fc10f63ab1ceb27fc190358780a268aee14a327de914c15efb185

Analysis

max time kernel
148s
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
02/12/2024, 01:52

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General

Target

8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe
Size

12KB
MD5

ceb5022b92f0429137dc0fb67371e901
SHA1

999932b537591401dfa1a74df00dae99264bd994
SHA256

8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b
SHA512

a7acdf417ef81f131c050bc8bd364edddf7a2ebc446c69411d549c14ca8967af7b8c8a2d4556018f148d1b57bc985e10104cdc72e2bed518cfe3280b0254a3d8
SSDEEP

192:knUbCDQoJq4Hb0jPuiJddudb7Z+XX1cNIQKXy+AFtaffEOsSRMWSVP1W58:kg3MGWimFNIQKX4Fgf8OxRBSVU

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/0x000e000000023ba3-137.dat	family_vidar_v7
behavioral2/memory/3572-141-0x0000000000310000-0x0000000000569000-memory.dmp	family_vidar_v7
behavioral2/memory/3572-159-0x0000000000310000-0x0000000000569000-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
4860	powershell.exe
2924	powershell.exe
1492	powershell.exe
4716	powershell.exe
2216	powershell.exe
3172	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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	kyegaldvQL.exe

Executes dropped EXE 1 IoCs

pid	Process
3572	kyegaldvQL.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
17	raw.githubusercontent.com
18	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	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kyegaldvQL.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
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

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

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
5004	timeout.exe

Suspicious behavior: EnumeratesProcesses 15 IoCs

pid	Process
2924	powershell.exe
2924	powershell.exe
1492	powershell.exe
1492	powershell.exe
4716	powershell.exe
4716	powershell.exe
2216	powershell.exe
2216	powershell.exe
3172	powershell.exe
3172	powershell.exe
4860	powershell.exe
4860	powershell.exe
2968	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe
3572	kyegaldvQL.exe
3572	kyegaldvQL.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	2968	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe
Token: SeDebugPrivilege	2924	powershell.exe
Token: SeDebugPrivilege	1492	powershell.exe
Token: SeDebugPrivilege	4716	powershell.exe
Token: SeDebugPrivilege	2216	powershell.exe
Token: SeDebugPrivilege	3172	powershell.exe
Token: SeDebugPrivilege	4860	powershell.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 2968 wrote to memory of 2924	2968	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe	83
PID 2968 wrote to memory of 2924	2968	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe	83
PID 2968 wrote to memory of 2924	2968	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe	83
PID 2924 wrote to memory of 1492	2924	powershell.exe	85
PID 2924 wrote to memory of 1492	2924	powershell.exe	85
PID 2924 wrote to memory of 1492	2924	powershell.exe	85
PID 2968 wrote to memory of 4716	2968	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe	86
PID 2968 wrote to memory of 4716	2968	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe	86
PID 2968 wrote to memory of 4716	2968	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe	86
PID 4716 wrote to memory of 2216	4716	powershell.exe	88
PID 4716 wrote to memory of 2216	4716	powershell.exe	88
PID 4716 wrote to memory of 2216	4716	powershell.exe	88
PID 2968 wrote to memory of 3172	2968	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe	89
PID 2968 wrote to memory of 3172	2968	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe	89
PID 2968 wrote to memory of 3172	2968	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe	89
PID 3172 wrote to memory of 4860	3172	powershell.exe	93
PID 3172 wrote to memory of 4860	3172	powershell.exe	93
PID 3172 wrote to memory of 4860	3172	powershell.exe	93
PID 2968 wrote to memory of 3572	2968	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe	96
PID 2968 wrote to memory of 3572	2968	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe	96
PID 2968 wrote to memory of 3572	2968	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe	96
PID 3572 wrote to memory of 2188	3572	kyegaldvQL.exe	102
PID 3572 wrote to memory of 2188	3572	kyegaldvQL.exe	102
PID 3572 wrote to memory of 2188	3572	kyegaldvQL.exe	102
PID 2188 wrote to memory of 5004	2188	cmd.exe	104
PID 2188 wrote to memory of 5004	2188	cmd.exe	104
PID 2188 wrote to memory of 5004	2188	cmd.exe	104

C:\Users\Admin\AppData\Local\Temp\8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe
"C:\Users\Admin\AppData\Local\Temp\8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2968
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" powershell -Command "Add-MpPreference -ExclusionPath 'C:\JoPHxCax5p'"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2924
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command Add-MpPreference -ExclusionPath C:\JoPHxCax5p
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1492
- 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:4716
- - 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:2216
- 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:3172
- - 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:4860
- C:\JoPHxCax5p\kyegaldvQL.exe
  "C:\JoPHxCax5p\kyegaldvQL.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:3572
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\JoPHxCax5p\kyegaldvQL.exe" & rd /s /q "C:\ProgramData\CFHIIJDBKEGI" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2188
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:5004

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:\JoPHxCax5p\kyegaldvQL.exe

Filesize
275KB

MD5
0a7b3454fdad8431bd3523648c915665

SHA1
800a97a7c1a92a92cac76afc1fe5349895ee5287

SHA256
baf217d7bb8f3a86856def6891638318a94ed5d7082149d4dd4cb755d90d86ce

SHA512
020e45eaeee083d6739155d9a821ab54dd07f1320b8efb73871ee5d29188122fdbb7d39b34a8b3694a8b0c08ae1801ec370e40ff8d837c9190a72905f26baff9

Download Submit
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
f5f8f17f5321033f86f78b4610039d6e

SHA1
c2837c8569e80264d83cab68427aba09294ab392

SHA256
a168e8a7c4d9f1b15e67c19c5c6b2cb65708d2c932f43b53066aa3c45814f3d7

SHA512
a472b3dfd526572b41b5dbf2edbe869ed7f19d6279e71eebbb9a3e3eb4ac6aec5649271a61dccb4b7a1f3e5cc30ed813338b91e5504d1548515312c27bf67aa9

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

Filesize
11KB

MD5
bf013ef123878d0e624c8f8bfba32f5b

SHA1
35c332dc883bf832450cb1b5f21e4afca769a052

SHA256
dfe6bf6ac939a3d97bff4013bc6cdd556839bc417da193838cc05dd08f04442c

SHA512
2b743e48e3d80572059b76e7ca19c0eb1e00f44b96b38448d7bdff70b429c3b239680a1db56a45e9698591f241dc305ce4bc4daf9d41d3c53593bc1d90201784

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

Filesize
11KB

MD5
0dc2de1a1923d27f23d6fd2d3041358d

SHA1
f803ce46dec56007cf6b332d170f81fcf6728e85

SHA256
16afe33de713bbd520794cd4e2d4f01ec1aef0235523334f86480179a97b2001

SHA512
963261a760f264c8f0795b7aa14abe2bcee4849db881d44fe691d864f38c7b608f79776f9cb1ad3d686faee290d82bcbe4fd416923364de1d9fd8c0553aa430f

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_f2cnvaf3.cux.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1492-55-0x00000000073E0000-0x00000000073EE000-memory.dmp

Filesize
56KB

Download
memory/1492-23-0x0000000074D80000-0x0000000075530000-memory.dmp

Filesize
7.7MB

Download
memory/1492-51-0x00000000071B0000-0x00000000071CA000-memory.dmp

Filesize
104KB

Download
memory/1492-58-0x00000000074D0000-0x00000000074D8000-memory.dmp

Filesize
32KB

Download
memory/1492-57-0x00000000074F0000-0x000000000750A000-memory.dmp

Filesize
104KB

Download
memory/1492-56-0x00000000073F0000-0x0000000007404000-memory.dmp

Filesize
80KB

Download
memory/1492-52-0x0000000007220000-0x000000000722A000-memory.dmp

Filesize
40KB

Download
memory/1492-54-0x00000000073B0000-0x00000000073C1000-memory.dmp

Filesize
68KB

Download
memory/1492-53-0x0000000007430000-0x00000000074C6000-memory.dmp

Filesize
600KB

Download
memory/1492-61-0x0000000074D80000-0x0000000075530000-memory.dmp

Filesize
7.7MB

Download
memory/1492-24-0x0000000074D80000-0x0000000075530000-memory.dmp

Filesize
7.7MB

Download
memory/1492-35-0x0000000070B80000-0x0000000070BCC000-memory.dmp

Filesize
304KB

Download
memory/1492-34-0x0000000006DE0000-0x0000000006E12000-memory.dmp

Filesize
200KB

Download
memory/1492-45-0x0000000007020000-0x000000000703E000-memory.dmp

Filesize
120KB

Download
memory/1492-46-0x0000000074D80000-0x0000000075530000-memory.dmp

Filesize
7.7MB

Download
memory/1492-48-0x0000000007050000-0x00000000070F3000-memory.dmp

Filesize
652KB

Download
memory/1492-47-0x0000000074D80000-0x0000000075530000-memory.dmp

Filesize
7.7MB

Download
memory/1492-49-0x0000000074D80000-0x0000000075530000-memory.dmp

Filesize
7.7MB

Download
memory/1492-50-0x00000000077F0000-0x0000000007E6A000-memory.dmp

Filesize
6.5MB

Download
memory/2216-88-0x0000000070B80000-0x0000000070BCC000-memory.dmp

Filesize
304KB

Download
memory/2924-16-0x0000000005C00000-0x0000000005F54000-memory.dmp

Filesize
3.3MB

Download
memory/2924-5-0x0000000005520000-0x0000000005B48000-memory.dmp

Filesize
6.2MB

Download
memory/2924-21-0x0000000006220000-0x000000000623E000-memory.dmp

Filesize
120KB

Download
memory/2924-3-0x0000000002910000-0x0000000002946000-memory.dmp

Filesize
216KB

Download
memory/2924-17-0x0000000074D80000-0x0000000075530000-memory.dmp

Filesize
7.7MB

Download
memory/2924-14-0x0000000074D80000-0x0000000075530000-memory.dmp

Filesize
7.7MB

Download
memory/2924-7-0x00000000053F0000-0x0000000005456000-memory.dmp

Filesize
408KB

Download
memory/2924-8-0x0000000005B50000-0x0000000005BB6000-memory.dmp

Filesize
408KB

Download
memory/2924-4-0x0000000074D80000-0x0000000075530000-memory.dmp

Filesize
7.7MB

Download
memory/2924-6-0x0000000005350000-0x0000000005372000-memory.dmp

Filesize
136KB

Download
memory/2924-67-0x0000000074D80000-0x0000000075530000-memory.dmp

Filesize
7.7MB

Download
memory/2924-22-0x0000000006720000-0x000000000676C000-memory.dmp

Filesize
304KB

Download
memory/2968-63-0x0000000074D80000-0x0000000075530000-memory.dmp

Filesize
7.7MB

Download
memory/2968-62-0x0000000074D8E000-0x0000000074D8F000-memory.dmp

Filesize
4KB

Download
memory/2968-0-0x0000000074D8E000-0x0000000074D8F000-memory.dmp

Filesize
4KB

Download
memory/2968-2-0x0000000074D80000-0x0000000075530000-memory.dmp

Filesize
7.7MB

Download
memory/2968-1-0x0000000000840000-0x000000000084A000-memory.dmp

Filesize
40KB

Download
memory/2968-145-0x0000000074D80000-0x0000000075530000-memory.dmp

Filesize
7.7MB

Download
memory/3572-141-0x0000000000310000-0x0000000000569000-memory.dmp

Filesize
2.3MB

Download
memory/3572-159-0x0000000000310000-0x0000000000569000-memory.dmp

Filesize
2.3MB

Download
memory/4716-77-0x0000000006350000-0x00000000066A4000-memory.dmp

Filesize
3.3MB

Download
memory/4860-120-0x0000000070B80000-0x0000000070BCC000-memory.dmp

Filesize
304KB

Download