stealc | f954f818007b508badc400417584ae7726a71f4b697d8b1eb13184318ef1eda1

General

Target

wefaceswap.exe
Size

36.1MB
MD5

ccacce8535f682dd67c701d9157ef218
SHA1

5f72f5e427590a0c5e184cb013d27cc3d1af265f
SHA256

f954f818007b508badc400417584ae7726a71f4b697d8b1eb13184318ef1eda1
SHA512

ea0816462acc433c02800f43f7d979db68d2ec78e075e2d9f0a776b9ba24b5e27ad36d9e1bab0f0276585de422b42553b2fc9c1e2571e50861bd2fd66a6ce576
SSDEEP

393216:B1Du8BtuBw2FEL3Z3aLUoQvo6LP/SgbSpYvKEh1EdKwlGQKPJuGsiTfREsrgCYf6:BMguj8Q4VfvfqFTrYx

Score

10^/10

stealc vidar discovery execution spyware stealer

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

http://88.198.124.82:80

https://steamcommunity.com/profiles/76561199689717899

https://t.me/copterwin

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0

Signatures

Detect Vidar Stealer 10 IoCs

stealer

Processes:

resource	yara_rule
behavioral2/memory/3952-39-0x00000000023A0000-0x00000000025E6000-memory.dmp	family_vidar_v7
behavioral2/memory/3952-40-0x00000000023A0000-0x00000000025E6000-memory.dmp	family_vidar_v7
behavioral2/memory/3952-56-0x00000000023A0000-0x00000000025E6000-memory.dmp	family_vidar_v7
behavioral2/memory/3952-57-0x00000000023A0000-0x00000000025E6000-memory.dmp	family_vidar_v7
behavioral2/memory/3952-73-0x00000000023A0000-0x00000000025E6000-memory.dmp	family_vidar_v7
behavioral2/memory/3952-74-0x00000000023A0000-0x00000000025E6000-memory.dmp	family_vidar_v7
behavioral2/memory/3952-110-0x00000000023A0000-0x00000000025E6000-memory.dmp	family_vidar_v7
behavioral2/memory/3952-111-0x00000000023A0000-0x00000000025E6000-memory.dmp	family_vidar_v7
behavioral2/memory/3952-118-0x00000000023A0000-0x00000000025E6000-memory.dmp	family_vidar_v7
behavioral2/memory/3952-119-0x00000000023A0000-0x00000000025E6000-memory.dmp	family_vidar_v7

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell and hide display window.
execution

PowerShell
T1059.001

Processes:

powershell.exe

pid process

3376 powershell.exe
Downloads MZ/PE file

pid	process
3376	powershell.exe

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

Processes:

payload_pump_Sc0U.exewefaceswap.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation	payload_pump_Sc0U.exe
Key value queried	\REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation	wefaceswap.exe

Executes dropped EXE 1 IoCs

Processes:

payload_pump_Sc0U.exe

pid process

3952 payload_pump_Sc0U.exe
Loads dropped DLL 2 IoCs

Processes:

payload_pump_Sc0U.exe

pid process

3952 payload_pump_Sc0U.exe
3952 payload_pump_Sc0U.exe
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001
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
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.

Query Registry
T1012

System Information Discovery
T1082

Processes:

payload_pump_Sc0U.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString payload_pump_Sc0U.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1960 timeout.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

powershell.exepayload_pump_Sc0U.exe

pid process

3376 powershell.exe
3376 powershell.exe
3952 payload_pump_Sc0U.exe
3952 payload_pump_Sc0U.exe
3952 payload_pump_Sc0U.exe
3952 payload_pump_Sc0U.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 3376 powershell.exe

pid	process
3952	payload_pump_Sc0U.exe

pid	process
3952	payload_pump_Sc0U.exe
3952	payload_pump_Sc0U.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	payload_pump_Sc0U.exe

pid	process
1960	timeout.exe

pid	process
3376	powershell.exe
3376	powershell.exe
3952	payload_pump_Sc0U.exe
3952	payload_pump_Sc0U.exe
3952	payload_pump_Sc0U.exe
3952	payload_pump_Sc0U.exe

description	pid	process
Token: SeDebugPrivilege	3376	powershell.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

wefaceswap.execmd.exepowershell.exepayload_pump_Sc0U.execmd.exe

description	pid	process	target process
PID 4452 wrote to memory of 4988	4452	wefaceswap.exe	cmd.exe
PID 4452 wrote to memory of 4988	4452	wefaceswap.exe	cmd.exe
PID 4988 wrote to memory of 3376	4988	cmd.exe	powershell.exe
PID 4988 wrote to memory of 3376	4988	cmd.exe	powershell.exe
PID 3376 wrote to memory of 3952	3376	powershell.exe	payload_pump_Sc0U.exe
PID 3376 wrote to memory of 3952	3376	powershell.exe	payload_pump_Sc0U.exe
PID 3376 wrote to memory of 3952	3376	powershell.exe	payload_pump_Sc0U.exe
PID 3952 wrote to memory of 2012	3952	payload_pump_Sc0U.exe	cmd.exe
PID 3952 wrote to memory of 2012	3952	payload_pump_Sc0U.exe	cmd.exe
PID 3952 wrote to memory of 2012	3952	payload_pump_Sc0U.exe	cmd.exe
PID 2012 wrote to memory of 1960	2012	cmd.exe	timeout.exe
PID 2012 wrote to memory of 1960	2012	cmd.exe	timeout.exe
PID 2012 wrote to memory of 1960	2012	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\wefaceswap.exe
"C:\Users\Admin\AppData\Local\Temp\wefaceswap.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4452

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /d /s /c "powershell.exe -ExecutionPolicy Bypass -Command "& { . 'C:\Users\Admin\AppData\Local\rlFtlGMNde\XBUd.ps1'; StartWork -path "C:\Users\Admin\AppData\Local\IheTnWMMJE\VuvyC\payload_pump_Sc0U.exe" }" -WindowStyle Hidden"
2⤵
- Suspicious use of WriteProcessMemory
PID:4988

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy Bypass -Command "& { . 'C:\Users\Admin\AppData\Local\rlFtlGMNde\XBUd.ps1'; StartWork -path "C:\Users\Admin\AppData\Local\IheTnWMMJE\VuvyC\payload_pump_Sc0U.exe" }" -WindowStyle Hidden
3⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3376

C:\Users\Admin\AppData\Local\IheTnWMMJE\VuvyC\payload_pump_Sc0U.exe
"C:\Users\Admin\AppData\Local\IheTnWMMJE\VuvyC\payload_pump_Sc0U.exe"
4⤵
- Checks computer location settings
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3952

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\BKJEHCAKFBGD" & exit
5⤵
- Suspicious use of WriteProcessMemory
PID:2012

C:\Windows\SysWOW64\timeout.exe
timeout /t 10
6⤵
- Delays execution with timeout.exe
PID:1960

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

4

T1552

Credentials In Files

4

T1552.001

Discovery

Query Registry

3

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Data from Local System

4

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\BKJEHCAKFBGD\VCRUNT~1.DLL

Filesize
78KB

MD5
a37ee36b536409056a86f50e67777dd7

SHA1
1cafa159292aa736fc595fc04e16325b27cd6750

SHA256
8934aaeb65b6e6d253dfe72dea5d65856bd871e989d5d3a2a35edfe867bb4825

SHA512
3a7c260646315cf8c01f44b2ec60974017496bd0d80dd055c7e43b707cadba2d63aab5e0efd435670aa77886ed86368390d42c4017fc433c3c4b9d1c47d0f356

Download Submit
C:\ProgramData\BKJEHCAKFBGD\mozglue.dll

Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
C:\ProgramData\BKJEHCAKFBGD\msvcp140.dll

Filesize
439KB

MD5
5ff1fca37c466d6723ec67be93b51442

SHA1
34cc4e158092083b13d67d6d2bc9e57b798a303b

SHA256
5136a49a682ac8d7f1ce71b211de8688fce42ed57210af087a8e2dbc8a934062

SHA512
4802ef62630c521d83a1d333969593fb00c9b38f82b4d07f70fbd21f495fea9b3f67676064573d2c71c42bc6f701992989742213501b16087bb6110e337c7546

Download Submit
C:\ProgramData\BKJEHCAKFBGD\nss3.dll

Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
C:\ProgramData\BKJEHCAKFBGD\softokn3.dll

Filesize
251KB

MD5
4e52d739c324db8225bd9ab2695f262f

SHA1
71c3da43dc5a0d2a1941e874a6d015a071783889

SHA256
74ebbac956e519e16923abdc5ab8912098a4f64e38ddcb2eae23969f306afe5a

SHA512
2d4168a69082a9192b9248f7331bd806c260478ff817567df54f997d7c3c7d640776131355401e4bdb9744e246c36d658cb24b18de67d8f23f10066e5fe445f6

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0kek1wtg.2e4.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\rlFtlGMNde\XBUd.ps1

Filesize
219B

MD5
62a57e38fac15e2d51ebf40852548932

SHA1
38d776ef9899c4521360072816a86dffef2e21c6

SHA256
8f8fc4f47193bdf53caf81547e89d5aa7b66a5bafa02bf68b4c7a6995a34b33a

SHA512
900fa89d6b21059fe25f1c2ecc34a1b35cb56c6b5375edb1009e2d9dd8aa70f1a46749db4ed2315364a7871b183195a35111421068ad44a8bc7eed1f28c7e7ba

Download Submit
memory/3376-38-0x00007FFD6D4F0000-0x00007FFD6DFB1000-memory.dmp

Filesize
10.8MB

Download
memory/3376-22-0x00007FFD6D4F0000-0x00007FFD6DFB1000-memory.dmp

Filesize
10.8MB

Download
memory/3376-21-0x00000207AE410000-0x00000207AE432000-memory.dmp

Filesize
136KB

Download
memory/3376-23-0x00007FFD6D4F0000-0x00007FFD6DFB1000-memory.dmp

Filesize
10.8MB

Download
memory/3376-11-0x00007FFD6D4F3000-0x00007FFD6D4F5000-memory.dmp

Filesize
8KB

Download
memory/3952-34-0x00000000007A0000-0x00000000007B9000-memory.dmp

Filesize
100KB

Download
memory/3952-73-0x00000000023A0000-0x00000000025E6000-memory.dmp

Filesize
2.3MB

Download
memory/3952-27-0x0000000000400000-0x00000000004F2000-memory.dmp

Filesize
968KB

Download
memory/3952-30-0x0000000000660000-0x0000000000667000-memory.dmp

Filesize
28KB

Download
memory/3952-39-0x00000000023A0000-0x00000000025E6000-memory.dmp

Filesize
2.3MB

Download
memory/3952-40-0x00000000023A0000-0x00000000025E6000-memory.dmp

Filesize
2.3MB

Download
memory/3952-42-0x0000000010000000-0x000000001025F000-memory.dmp

Filesize
2.4MB

Download
memory/3952-56-0x00000000023A0000-0x00000000025E6000-memory.dmp

Filesize
2.3MB

Download
memory/3952-57-0x00000000023A0000-0x00000000025E6000-memory.dmp

Filesize
2.3MB

Download
memory/3952-28-0x0000000000650000-0x000000000065A000-memory.dmp

Filesize
40KB

Download
memory/3952-74-0x00000000023A0000-0x00000000025E6000-memory.dmp

Filesize
2.3MB

Download
memory/3952-31-0x0000000000660000-0x0000000000667000-memory.dmp

Filesize
28KB

Download
memory/3952-32-0x0000000000670000-0x0000000000674000-memory.dmp

Filesize
16KB

Download
memory/3952-110-0x00000000023A0000-0x00000000025E6000-memory.dmp

Filesize
2.3MB

Download
memory/3952-111-0x00000000023A0000-0x00000000025E6000-memory.dmp

Filesize
2.3MB

Download
memory/3952-118-0x00000000023A0000-0x00000000025E6000-memory.dmp

Filesize
2.3MB

Download
memory/3952-119-0x00000000023A0000-0x00000000025E6000-memory.dmp

Filesize
2.3MB

Download
memory/3952-33-0x0000000000670000-0x0000000000674000-memory.dmp

Filesize
16KB

Download
memory/3952-35-0x00000000007A0000-0x00000000007B9000-memory.dmp

Filesize
100KB

Download
memory/3952-29-0x0000000000650000-0x000000000065A000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads