stealc | 8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b

Analysis

max time kernel
96s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01-12-2024 02:49

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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/0x0010000000023c81-137.dat	family_vidar_v7
behavioral2/memory/5016-141-0x0000000000CD0000-0x0000000000F29000-memory.dmp	family_vidar_v7
behavioral2/memory/5016-159-0x0000000000CD0000-0x0000000000F29000-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
2020	powershell.exe
3040	powershell.exe
2328	powershell.exe
4684	powershell.exe
2396	powershell.exe
1556	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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	5iC63kOd.exe

Executes dropped EXE 1 IoCs

pid	Process
5016	5iC63kOd.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	powershell.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	5iC63kOd.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	5iC63kOd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	5iC63kOd.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
4992	timeout.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
4684	powershell.exe
4684	powershell.exe
2396	powershell.exe
2396	powershell.exe
1556	powershell.exe
1556	powershell.exe
2020	powershell.exe
2020	powershell.exe
3040	powershell.exe
3040	powershell.exe
2328	powershell.exe
2328	powershell.exe
5016	5iC63kOd.exe
5016	5iC63kOd.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	4736	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe
Token: SeDebugPrivilege	4684	powershell.exe
Token: SeDebugPrivilege	2396	powershell.exe
Token: SeDebugPrivilege	1556	powershell.exe
Token: SeDebugPrivilege	2020	powershell.exe
Token: SeDebugPrivilege	3040	powershell.exe
Token: SeDebugPrivilege	2328	powershell.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 4736 wrote to memory of 4684	4736	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe	84
PID 4736 wrote to memory of 4684	4736	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe	84
PID 4736 wrote to memory of 4684	4736	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe	84
PID 4684 wrote to memory of 2396	4684	powershell.exe	86
PID 4684 wrote to memory of 2396	4684	powershell.exe	86
PID 4684 wrote to memory of 2396	4684	powershell.exe	86
PID 4736 wrote to memory of 1556	4736	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe	88
PID 4736 wrote to memory of 1556	4736	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe	88
PID 4736 wrote to memory of 1556	4736	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe	88
PID 1556 wrote to memory of 2020	1556	powershell.exe	90
PID 1556 wrote to memory of 2020	1556	powershell.exe	90
PID 1556 wrote to memory of 2020	1556	powershell.exe	90
PID 4736 wrote to memory of 3040	4736	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe	91
PID 4736 wrote to memory of 3040	4736	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe	91
PID 4736 wrote to memory of 3040	4736	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe	91
PID 3040 wrote to memory of 2328	3040	powershell.exe	93
PID 3040 wrote to memory of 2328	3040	powershell.exe	93
PID 3040 wrote to memory of 2328	3040	powershell.exe	93
PID 4736 wrote to memory of 5016	4736	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe	95
PID 4736 wrote to memory of 5016	4736	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe	95
PID 4736 wrote to memory of 5016	4736	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe	95
PID 5016 wrote to memory of 4384	5016	5iC63kOd.exe	112
PID 5016 wrote to memory of 4384	5016	5iC63kOd.exe	112
PID 5016 wrote to memory of 4384	5016	5iC63kOd.exe	112
PID 4384 wrote to memory of 4992	4384	cmd.exe	114
PID 4384 wrote to memory of 4992	4384	cmd.exe	114
PID 4384 wrote to memory of 4992	4384	cmd.exe	114

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 use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4736
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" powershell -Command "Add-MpPreference -ExclusionPath 'C:\ek2Nh3gNS'"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4684
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command Add-MpPreference -ExclusionPath C:\ek2Nh3gNS
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2396
- 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:1556
- - 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:2020
- 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:3040
- - 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:2328
- C:\ek2Nh3gNS\5iC63kOd.exe
  "C:\ek2Nh3gNS\5iC63kOd.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:5016
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\ek2Nh3gNS\5iC63kOd.exe" & rd /s /q "C:\ProgramData\AKFHDBFIDAEC" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4384
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:4992

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
276cb885e31dd3ae2e852a573413096b

SHA1
089bcff3c209025bd0c740011cb2022d24121351

SHA256
7bd8252cb7e102dfd689befce1432c856ded9d22bcd643d9007e68d52e134c06

SHA512
f7c0d4e198ed5b9b3432c712b0be4c47715671555b5c1fe7e24cb1f9c512d737b89b613263e5b3ba95f0df14888d92da6cc6519a784718b2a14eafcd4c28637c

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

Filesize
11KB

MD5
5e01dd4fff88442ed679814ca23f4cbe

SHA1
710770d973e8a3e5ef9ddf5ba89a6e1152611b63

SHA256
4c78ab0119ed37dc96f779796e1cf37144900fa377ffcd4f2861e644f044134a

SHA512
3c9becb16579611d6f43be4d71f8932ff1cd3dc0a4b068bb175da3e7374e5a47aadf760c9fb6308359ef694846c1ee5122ccaab4343db9d781d4e780452dc15f

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

Filesize
11KB

MD5
d53c887f62ac2acdd0a5acb8f6f7daa3

SHA1
ddfafbeba8613dd30355450b3ac3a5fcb290195c

SHA256
dc4ad32f8308c82d30a989ff5bd5c6ecbace9e3f004f29835145e62bfa88603e

SHA512
2b4cb1e122d3ee4eb3fb5bd5758ecc46a8c32f61acf779b7138c6a06fbd03b652dfd1f9d2dc1cd7151fee1e42113166d20d6c0a75586ebcd1395e98138e70a6d

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nyiefguc.q4w.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\ek2Nh3gNS\5iC63kOd.exe

Filesize
275KB

MD5
0a7b3454fdad8431bd3523648c915665

SHA1
800a97a7c1a92a92cac76afc1fe5349895ee5287

SHA256
baf217d7bb8f3a86856def6891638318a94ed5d7082149d4dd4cb755d90d86ce

SHA512
020e45eaeee083d6739155d9a821ab54dd07f1320b8efb73871ee5d29188122fdbb7d39b34a8b3694a8b0c08ae1801ec370e40ff8d837c9190a72905f26baff9

Download Submit
memory/1556-75-0x00000000060D0000-0x0000000006424000-memory.dmp

Filesize
3.3MB

Download
memory/2020-88-0x0000000070D40000-0x0000000070D8C000-memory.dmp

Filesize
304KB

Download
memory/2328-120-0x0000000070D40000-0x0000000070D8C000-memory.dmp

Filesize
304KB

Download
memory/2396-55-0x0000000007430000-0x000000000743E000-memory.dmp

Filesize
56KB

Download
memory/2396-35-0x0000000070D40000-0x0000000070D8C000-memory.dmp

Filesize
304KB

Download
memory/2396-58-0x0000000007520000-0x0000000007528000-memory.dmp

Filesize
32KB

Download
memory/2396-57-0x0000000007540000-0x000000000755A000-memory.dmp

Filesize
104KB

Download
memory/2396-56-0x0000000007440000-0x0000000007454000-memory.dmp

Filesize
80KB

Download
memory/2396-54-0x0000000007400000-0x0000000007411000-memory.dmp

Filesize
68KB

Download
memory/2396-23-0x0000000074F40000-0x00000000756F0000-memory.dmp

Filesize
7.7MB

Download
memory/2396-24-0x0000000074F40000-0x00000000756F0000-memory.dmp

Filesize
7.7MB

Download
memory/2396-45-0x0000000074F40000-0x00000000756F0000-memory.dmp

Filesize
7.7MB

Download
memory/2396-61-0x0000000074F40000-0x00000000756F0000-memory.dmp

Filesize
7.7MB

Download
memory/2396-46-0x0000000007060000-0x000000000707E000-memory.dmp

Filesize
120KB

Download
memory/2396-47-0x0000000074F40000-0x00000000756F0000-memory.dmp

Filesize
7.7MB

Download
memory/2396-34-0x0000000007080000-0x00000000070B2000-memory.dmp

Filesize
200KB

Download
memory/2396-48-0x00000000070D0000-0x0000000007173000-memory.dmp

Filesize
652KB

Download
memory/2396-49-0x0000000074F40000-0x00000000756F0000-memory.dmp

Filesize
7.7MB

Download
memory/2396-50-0x0000000007850000-0x0000000007ECA000-memory.dmp

Filesize
6.5MB

Download
memory/2396-51-0x0000000007200000-0x000000000721A000-memory.dmp

Filesize
104KB

Download
memory/2396-52-0x0000000007270000-0x000000000727A000-memory.dmp

Filesize
40KB

Download
memory/2396-53-0x0000000007480000-0x0000000007516000-memory.dmp

Filesize
600KB

Download
memory/4684-15-0x0000000074F40000-0x00000000756F0000-memory.dmp

Filesize
7.7MB

Download
memory/4684-6-0x00000000051B0000-0x00000000051D2000-memory.dmp

Filesize
136KB

Download
memory/4684-21-0x0000000006190000-0x00000000061AE000-memory.dmp

Filesize
120KB

Download
memory/4684-3-0x0000000004BB0000-0x0000000004BE6000-memory.dmp

Filesize
216KB

Download
memory/4684-20-0x0000000005B10000-0x0000000005E64000-memory.dmp

Filesize
3.3MB

Download
memory/4684-14-0x0000000074F40000-0x00000000756F0000-memory.dmp

Filesize
7.7MB

Download
memory/4684-7-0x00000000058F0000-0x0000000005956000-memory.dmp

Filesize
408KB

Download
memory/4684-8-0x0000000005960000-0x00000000059C6000-memory.dmp

Filesize
408KB

Download
memory/4684-65-0x0000000074F40000-0x00000000756F0000-memory.dmp

Filesize
7.7MB

Download
memory/4684-22-0x0000000006220000-0x000000000626C000-memory.dmp

Filesize
304KB

Download
memory/4684-5-0x00000000052C0000-0x00000000058E8000-memory.dmp

Filesize
6.2MB

Download
memory/4684-4-0x0000000074F40000-0x00000000756F0000-memory.dmp

Filesize
7.7MB

Download
memory/4736-87-0x0000000074F40000-0x00000000756F0000-memory.dmp

Filesize
7.7MB

Download
memory/4736-77-0x0000000074F4E000-0x0000000074F4F000-memory.dmp

Filesize
4KB

Download
memory/4736-0-0x0000000074F4E000-0x0000000074F4F000-memory.dmp

Filesize
4KB

Download
memory/4736-2-0x0000000074F40000-0x00000000756F0000-memory.dmp

Filesize
7.7MB

Download
memory/4736-1-0x0000000000D00000-0x0000000000D0A000-memory.dmp

Filesize
40KB

Download
memory/4736-145-0x0000000074F40000-0x00000000756F0000-memory.dmp

Filesize
7.7MB

Download
memory/5016-141-0x0000000000CD0000-0x0000000000F29000-memory.dmp

Filesize
2.3MB

Download
memory/5016-159-0x0000000000CD0000-0x0000000000F29000-memory.dmp

Filesize
2.3MB

Download