stealc | 0d6494a16aec93bbf79227151adcb085328b2af646f5a65b17a98b7762cd77df

General

Target

0d6494a16aec93bbf79227151adcb085328b2af646f5a65b17a98b7762cd77df.exe
Size

452KB
MD5

e22eb6b1c1a698104f02bbc8c2dec0dc
SHA1

e87776a3b348d4d465d7e884037a35fccbb45c48
SHA256

0d6494a16aec93bbf79227151adcb085328b2af646f5a65b17a98b7762cd77df
SHA512

b855999b1d90b28525ec3b9119d7542e2f9fc23dbebf9ed187ba56ff37a2f73adec60bbd6dcd3dcfa7eee3eec9a1e9f48068c109aaf1ad1ab7f742b493806000
SSDEEP

6144:Vn9P58Q34DMRyzxvNPWUwXtybWhR05El0iy4rBO5QjXIMOEtsdalxnh7l9DwCPPC:BNt4DMRy3R/EOSINdalxnZl9DlPSEO

Score

10^/10

stealc vidar discovery spyware stealer

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://t.me/memve4erin

https://steamcommunity.com/profiles/76561199699680841

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0

Signatures

Detect Vidar Stealer 5 IoCs

stealer

Processes:

resource	yara_rule
behavioral2/memory/4428-0-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/4428-5-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/4428-4-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/4428-6-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/4428-7-0x0000000000400000-0x0000000000648000-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
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

RegAsm.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation RegAsm.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
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

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation	RegAsm.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

0d6494a16aec93bbf79227151adcb085328b2af646f5a65b17a98b7762cd77df.exe

description	pid	process	target process
PID 936 set thread context of 4428	936	0d6494a16aec93bbf79227151adcb085328b2af646f5a65b17a98b7762cd77df.exe	RegAsm.exe

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:

RegAsm.exe

description ioc process

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

Processes:

timeout.exe

pid process

2164 timeout.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegAsm.exe

pid process

4428 RegAsm.exe
4428 RegAsm.exe

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

pid	process
2164	timeout.exe

pid	process
4428	RegAsm.exe
4428	RegAsm.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

0d6494a16aec93bbf79227151adcb085328b2af646f5a65b17a98b7762cd77df.exeRegAsm.execmd.exe

description	pid	process	target process
PID 936 wrote to memory of 4428	936	0d6494a16aec93bbf79227151adcb085328b2af646f5a65b17a98b7762cd77df.exe	RegAsm.exe
PID 936 wrote to memory of 4428	936	0d6494a16aec93bbf79227151adcb085328b2af646f5a65b17a98b7762cd77df.exe	RegAsm.exe
PID 936 wrote to memory of 4428	936	0d6494a16aec93bbf79227151adcb085328b2af646f5a65b17a98b7762cd77df.exe	RegAsm.exe
PID 936 wrote to memory of 4428	936	0d6494a16aec93bbf79227151adcb085328b2af646f5a65b17a98b7762cd77df.exe	RegAsm.exe
PID 936 wrote to memory of 4428	936	0d6494a16aec93bbf79227151adcb085328b2af646f5a65b17a98b7762cd77df.exe	RegAsm.exe
PID 936 wrote to memory of 4428	936	0d6494a16aec93bbf79227151adcb085328b2af646f5a65b17a98b7762cd77df.exe	RegAsm.exe
PID 936 wrote to memory of 4428	936	0d6494a16aec93bbf79227151adcb085328b2af646f5a65b17a98b7762cd77df.exe	RegAsm.exe
PID 936 wrote to memory of 4428	936	0d6494a16aec93bbf79227151adcb085328b2af646f5a65b17a98b7762cd77df.exe	RegAsm.exe
PID 936 wrote to memory of 4428	936	0d6494a16aec93bbf79227151adcb085328b2af646f5a65b17a98b7762cd77df.exe	RegAsm.exe
PID 4428 wrote to memory of 4544	4428	RegAsm.exe	cmd.exe
PID 4428 wrote to memory of 4544	4428	RegAsm.exe	cmd.exe
PID 4428 wrote to memory of 4544	4428	RegAsm.exe	cmd.exe
PID 4544 wrote to memory of 2164	4544	cmd.exe	timeout.exe
PID 4544 wrote to memory of 2164	4544	cmd.exe	timeout.exe
PID 4544 wrote to memory of 2164	4544	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\0d6494a16aec93bbf79227151adcb085328b2af646f5a65b17a98b7762cd77df.exe
"C:\Users\Admin\AppData\Local\Temp\0d6494a16aec93bbf79227151adcb085328b2af646f5a65b17a98b7762cd77df.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:936

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
2⤵
- Checks computer location settings
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4428

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe" & rd /s /q "C:\ProgramData\BGDHDAFIDGDB" & exit
3⤵
- Suspicious use of WriteProcessMemory
PID:4544

C:\Windows\SysWOW64\timeout.exe
timeout /t 10
4⤵
- Delays execution with timeout.exe
PID:2164

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

3

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

memory/936-1-0x0000000000F00000-0x0000000000F01000-memory.dmp

Filesize
4KB

Download
memory/4428-0-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4428-5-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4428-4-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4428-6-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4428-7-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads