stealc | 8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b

Analysis

max time kernel
94s
max time network
145s
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 02:44

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

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/0x000e000000023bb2-138.dat	family_vidar_v7
behavioral2/memory/2464-142-0x0000000000DE0000-0x0000000001039000-memory.dmp	family_vidar_v7
behavioral2/memory/2464-160-0x0000000000DE0000-0x0000000001039000-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
1508	powershell.exe
4252	powershell.exe
4564	powershell.exe
1108	powershell.exe
4328	powershell.exe
2064	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	SQUmzMBsX.exe

Executes dropped EXE 1 IoCs

pid	Process
2464	SQUmzMBsX.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
19	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	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	SQUmzMBsX.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
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

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	SQUmzMBsX.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	SQUmzMBsX.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2040	timeout.exe

Suspicious behavior: EnumeratesProcesses 15 IoCs

pid	Process
4564	powershell.exe
4564	powershell.exe
1108	powershell.exe
1108	powershell.exe
4328	powershell.exe
4328	powershell.exe
2064	powershell.exe
2064	powershell.exe
1508	powershell.exe
1508	powershell.exe
4252	powershell.exe
4252	powershell.exe
1264	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe
2464	SQUmzMBsX.exe
2464	SQUmzMBsX.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	1264	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe
Token: SeDebugPrivilege	4564	powershell.exe
Token: SeDebugPrivilege	1108	powershell.exe
Token: SeDebugPrivilege	4328	powershell.exe
Token: SeDebugPrivilege	2064	powershell.exe
Token: SeDebugPrivilege	1508	powershell.exe
Token: SeDebugPrivilege	4252	powershell.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 1264 wrote to memory of 4564	1264	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe	83
PID 1264 wrote to memory of 4564	1264	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe	83
PID 1264 wrote to memory of 4564	1264	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe	83
PID 4564 wrote to memory of 1108	4564	powershell.exe	85
PID 4564 wrote to memory of 1108	4564	powershell.exe	85
PID 4564 wrote to memory of 1108	4564	powershell.exe	85
PID 1264 wrote to memory of 4328	1264	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe	86
PID 1264 wrote to memory of 4328	1264	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe	86
PID 1264 wrote to memory of 4328	1264	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe	86
PID 4328 wrote to memory of 2064	4328	powershell.exe	88
PID 4328 wrote to memory of 2064	4328	powershell.exe	88
PID 4328 wrote to memory of 2064	4328	powershell.exe	88
PID 1264 wrote to memory of 1508	1264	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe	93
PID 1264 wrote to memory of 1508	1264	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe	93
PID 1264 wrote to memory of 1508	1264	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe	93
PID 1508 wrote to memory of 4252	1508	powershell.exe	95
PID 1508 wrote to memory of 4252	1508	powershell.exe	95
PID 1508 wrote to memory of 4252	1508	powershell.exe	95
PID 1264 wrote to memory of 2464	1264	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe	97
PID 1264 wrote to memory of 2464	1264	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe	97
PID 1264 wrote to memory of 2464	1264	8d2f2dce701f8dc555e74b53bfaf7a1337027adc7fadc094b2eba3bb5b688f1b.exe	97
PID 2464 wrote to memory of 1420	2464	SQUmzMBsX.exe	102
PID 2464 wrote to memory of 1420	2464	SQUmzMBsX.exe	102
PID 2464 wrote to memory of 1420	2464	SQUmzMBsX.exe	102
PID 1420 wrote to memory of 2040	1420	cmd.exe	104
PID 1420 wrote to memory of 2040	1420	cmd.exe	104
PID 1420 wrote to memory of 2040	1420	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:1264
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" powershell -Command "Add-MpPreference -ExclusionPath 'C:\qAba1OyJSV'"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4564
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command Add-MpPreference -ExclusionPath C:\qAba1OyJSV
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1108
- 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:4328
- - 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:2064
- 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:1508
- - 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:4252
- C:\qAba1OyJSV\SQUmzMBsX.exe
  "C:\qAba1OyJSV\SQUmzMBsX.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:2464
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\qAba1OyJSV\SQUmzMBsX.exe" & rd /s /q "C:\ProgramData\GHJKECAAAFHJ" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1420
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:2040

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
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

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

Filesize
11KB

MD5
86b984cb7da6196f1eb0b9146e22ed1c

SHA1
f7cf5378d28e070c05ae8ea2bf85ce06dd3a7514

SHA256
492c5def58dc5cae31e5116fb37001e7f3e7db904af76f7ca9203698ee009c1c

SHA512
f0d06849920ec8be47b1751d526e89b918a141dadd13aee151f9660cf7247c479a47de8f9ec1139f6f0333ef9f9120a26dff6cb83c98b561d0dc4acd7a902c28

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

Filesize
11KB

MD5
759e4016c6af048b78faa1559b82ec9b

SHA1
4cd2770c99e7101da506a1a5a719079c31ce7f25

SHA256
b33b90f05de97e3fbcaba93d7bf63d20c71e3d010728638ec1b18b7de31e651e

SHA512
f844d44290ad4623cd4219f4485f13112992fd0f278e835e42e79380fa60bdbd74014cbf768f387503e316cd1aaa87a42cd0657c05ea49360d705ed1e5faa2df

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

Filesize
11KB

MD5
2d7fc5e34fc56a2ed87d5c5a9b644c6f

SHA1
d6ccf99a11bd5a644d65be56ce2fc6c16d9b6f2a

SHA256
73fe8321241d27ab566b3edaee55119101a1738acd47946d06e23b3780b4bb88

SHA512
5320e4db014e46e6c250a863cde6e4f08e710965d115e8af4d38b6f0217ab5d61504fb60891909d98322a1b5c92faf4499ef90596c0bb8b72dd3f130c5fcea20

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mnbkrkte.0d3.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\qAba1OyJSV\SQUmzMBsX.exe

Filesize
275KB

MD5
0a7b3454fdad8431bd3523648c915665

SHA1
800a97a7c1a92a92cac76afc1fe5349895ee5287

SHA256
baf217d7bb8f3a86856def6891638318a94ed5d7082149d4dd4cb755d90d86ce

SHA512
020e45eaeee083d6739155d9a821ab54dd07f1320b8efb73871ee5d29188122fdbb7d39b34a8b3694a8b0c08ae1801ec370e40ff8d837c9190a72905f26baff9

Download Submit
memory/1108-64-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/1108-51-0x0000000007250000-0x000000000726A000-memory.dmp

Filesize
104KB

Download
memory/1108-61-0x0000000007570000-0x0000000007578000-memory.dmp

Filesize
32KB

Download
memory/1108-60-0x0000000007590000-0x00000000075AA000-memory.dmp

Filesize
104KB

Download
memory/1108-59-0x0000000007490000-0x00000000074A4000-memory.dmp

Filesize
80KB

Download
memory/1108-58-0x0000000007480000-0x000000000748E000-memory.dmp

Filesize
56KB

Download
memory/1108-56-0x0000000007450000-0x0000000007461000-memory.dmp

Filesize
68KB

Download
memory/1108-55-0x00000000074D0000-0x0000000007566000-memory.dmp

Filesize
600KB

Download
memory/1108-54-0x00000000072C0000-0x00000000072CA000-memory.dmp

Filesize
40KB

Download
memory/1108-23-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/1108-24-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/1108-34-0x0000000006EA0000-0x0000000006ED2000-memory.dmp

Filesize
200KB

Download
memory/1108-35-0x0000000070900000-0x000000007094C000-memory.dmp

Filesize
304KB

Download
memory/1108-45-0x00000000070E0000-0x00000000070FE000-memory.dmp

Filesize
120KB

Download
memory/1108-46-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/1108-48-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/1108-47-0x0000000007110000-0x00000000071B3000-memory.dmp

Filesize
652KB

Download
memory/1108-49-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/1108-50-0x0000000007890000-0x0000000007F0A000-memory.dmp

Filesize
6.5MB

Download
memory/1264-53-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/1264-0-0x0000000074B0E000-0x0000000074B0F000-memory.dmp

Filesize
4KB

Download
memory/1264-146-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/1264-1-0x0000000000720000-0x000000000072A000-memory.dmp

Filesize
40KB

Download
memory/1264-2-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/1264-52-0x0000000074B0E000-0x0000000074B0F000-memory.dmp

Filesize
4KB

Download
memory/2064-89-0x0000000070900000-0x000000007094C000-memory.dmp

Filesize
304KB

Download
memory/2464-160-0x0000000000DE0000-0x0000000001039000-memory.dmp

Filesize
2.3MB

Download
memory/2464-142-0x0000000000DE0000-0x0000000001039000-memory.dmp

Filesize
2.3MB

Download
memory/4252-121-0x0000000070900000-0x000000007094C000-memory.dmp

Filesize
304KB

Download
memory/4328-78-0x0000000005CC0000-0x0000000006014000-memory.dmp

Filesize
3.3MB

Download
memory/4564-57-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/4564-6-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/4564-5-0x0000000005220000-0x0000000005848000-memory.dmp

Filesize
6.2MB

Download
memory/4564-68-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/4564-4-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/4564-16-0x0000000005990000-0x0000000005CE4000-memory.dmp

Filesize
3.3MB

Download
memory/4564-3-0x00000000026C0000-0x00000000026F6000-memory.dmp

Filesize
216KB

Download
memory/4564-8-0x00000000050B0000-0x0000000005116000-memory.dmp

Filesize
408KB

Download
memory/4564-21-0x0000000006060000-0x000000000607E000-memory.dmp

Filesize
120KB

Download
memory/4564-22-0x0000000006090000-0x00000000060DC000-memory.dmp

Filesize
304KB

Download
memory/4564-9-0x0000000005120000-0x0000000005186000-memory.dmp

Filesize
408KB

Download
memory/4564-7-0x0000000005010000-0x0000000005032000-memory.dmp

Filesize
136KB

Download
memory/4564-10-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download