stealc | 0197c8ed495aaf563da67faa3dbfb867ff7f233dd46119b8277dd496b949b31a

General

Target
0197c8ed495aaf563da67faa3dbfb867ff7f233dd46119b8277dd496b949b31a.exe
Size 407KB
Sample240606-2e2c4sea56
SHA256 0197c8ed495aaf563da67faa3dbfb867ff7f233dd46119b8277dd496b949b31a
MD5 76fd1a9b1926651dfe6018923baddfa8
SHA1 7d3692aaef8d17f92401a0b017a40474f506b878
SHA512 00e96dcc211dc6741d599bfaf7c6e61b0997deb322b02ac40ae377c1e3ce7dc3465094a9c779e2d185577a8e82e5fc09443f8eea7e7856c0a3ea7152420d8023
SSDEEP 12288:SfNod7Ta1DTnyYaVJfopa83TCUwOj/eES:SfN8HaRjYn83Thwez
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

stealc vidar discovery spyware stealer

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://t.me/ta904ek
https://steamcommunity.com/profiles/76561199695752269

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 9 IoCs

stealer

resource	yara_rule
behavioral2/memory/3352-2-0x0000000000400000-0x0000000000649000-memory.dmp	family_vidar_v7
behavioral2/memory/3352-7-0x0000000000400000-0x0000000000649000-memory.dmp	family_vidar_v7
behavioral2/memory/3352-5-0x0000000000400000-0x0000000000649000-memory.dmp	family_vidar_v7
behavioral2/memory/3352-22-0x0000000000400000-0x0000000000649000-memory.dmp	family_vidar_v7
behavioral2/memory/3352-23-0x0000000000400000-0x0000000000649000-memory.dmp	family_vidar_v7
behavioral2/memory/3352-36-0x0000000000400000-0x0000000000649000-memory.dmp	family_vidar_v7
behavioral2/memory/3352-37-0x0000000000400000-0x0000000000649000-memory.dmp	family_vidar_v7
behavioral2/memory/3352-52-0x0000000000400000-0x0000000000649000-memory.dmp	family_vidar_v7
behavioral2/memory/3352-53-0x0000000000400000-0x0000000000649000-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
Downloads MZ/PE file
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 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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4664 set thread context of 3352	4664	0197c8ed495aaf563da67faa3dbfb867ff7f233dd46119b8277dd496b949b31a.exe	75

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

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

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
692	timeout.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3352	RegAsm.exe
3352	RegAsm.exe
3352	RegAsm.exe
3352	RegAsm.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4664 wrote to memory of 1684	4664	0197c8ed495aaf563da67faa3dbfb867ff7f233dd46119b8277dd496b949b31a.exe	73
PID 4664 wrote to memory of 1684	4664	0197c8ed495aaf563da67faa3dbfb867ff7f233dd46119b8277dd496b949b31a.exe	73
PID 4664 wrote to memory of 1684	4664	0197c8ed495aaf563da67faa3dbfb867ff7f233dd46119b8277dd496b949b31a.exe	73
PID 4664 wrote to memory of 4712	4664	0197c8ed495aaf563da67faa3dbfb867ff7f233dd46119b8277dd496b949b31a.exe	74
PID 4664 wrote to memory of 4712	4664	0197c8ed495aaf563da67faa3dbfb867ff7f233dd46119b8277dd496b949b31a.exe	74
PID 4664 wrote to memory of 4712	4664	0197c8ed495aaf563da67faa3dbfb867ff7f233dd46119b8277dd496b949b31a.exe	74
PID 4664 wrote to memory of 3352	4664	0197c8ed495aaf563da67faa3dbfb867ff7f233dd46119b8277dd496b949b31a.exe	75
PID 4664 wrote to memory of 3352	4664	0197c8ed495aaf563da67faa3dbfb867ff7f233dd46119b8277dd496b949b31a.exe	75
PID 4664 wrote to memory of 3352	4664	0197c8ed495aaf563da67faa3dbfb867ff7f233dd46119b8277dd496b949b31a.exe	75
PID 4664 wrote to memory of 3352	4664	0197c8ed495aaf563da67faa3dbfb867ff7f233dd46119b8277dd496b949b31a.exe	75
PID 4664 wrote to memory of 3352	4664	0197c8ed495aaf563da67faa3dbfb867ff7f233dd46119b8277dd496b949b31a.exe	75
PID 4664 wrote to memory of 3352	4664	0197c8ed495aaf563da67faa3dbfb867ff7f233dd46119b8277dd496b949b31a.exe	75
PID 4664 wrote to memory of 3352	4664	0197c8ed495aaf563da67faa3dbfb867ff7f233dd46119b8277dd496b949b31a.exe	75
PID 4664 wrote to memory of 3352	4664	0197c8ed495aaf563da67faa3dbfb867ff7f233dd46119b8277dd496b949b31a.exe	75
PID 4664 wrote to memory of 3352	4664	0197c8ed495aaf563da67faa3dbfb867ff7f233dd46119b8277dd496b949b31a.exe	75
PID 3352 wrote to memory of 4376	3352	RegAsm.exe	77
PID 3352 wrote to memory of 4376	3352	RegAsm.exe	77
PID 3352 wrote to memory of 4376	3352	RegAsm.exe	77
PID 4376 wrote to memory of 692	4376	cmd.exe	79
PID 4376 wrote to memory of 692	4376	cmd.exe	79
PID 4376 wrote to memory of 692	4376	cmd.exe	79

C:\Users\Admin\AppData\Local\Temp\0197c8ed495aaf563da67faa3dbfb867ff7f233dd46119b8277dd496b949b31a.exe
"C:\Users\Admin\AppData\Local\Temp\0197c8ed495aaf563da67faa3dbfb867ff7f233dd46119b8277dd496b949b31a.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4664
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:1684
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:4712
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3352
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\HDAKFCGIJKJK" & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4376
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      Delays execution with timeout.exe
      PID:692

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

3

T1552

Credentials In Files

3

T1552.001

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/3352-2-0x0000000000400000-0x0000000000649000-memory.dmp

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memory/3352-7-0x0000000000400000-0x0000000000649000-memory.dmp

Download

memory/3352-5-0x0000000000400000-0x0000000000649000-memory.dmp

Download

memory/3352-22-0x0000000000400000-0x0000000000649000-memory.dmp

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memory/3352-23-0x0000000000400000-0x0000000000649000-memory.dmp

Download

memory/3352-25-0x000000001B420000-0x000000001B67F000-memory.dmp

Download

memory/3352-36-0x0000000000400000-0x0000000000649000-memory.dmp

Download

memory/3352-37-0x0000000000400000-0x0000000000649000-memory.dmp

Download

memory/3352-52-0x0000000000400000-0x0000000000649000-memory.dmp

Download

memory/3352-53-0x0000000000400000-0x0000000000649000-memory.dmp

Download

memory/4664-1-0x00000000007F0000-0x00000000007F1000-memory.dmp

Download

memory/4664-0-0x00000000007F0000-0x00000000007F1000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads