stealc | abaefa482e3cd3b2a498a83530a0418e32078e81d975c69b13dfd8dd12213b5a

General

Target

abaefa482e3cd3b2a498a83530a0418e32078e81d975c69b13dfd8dd12213b5a.exe
Size

2.0MB
MD5

d92c985ddae73d2e1407ca76e682f2fa
SHA1

8a04a22fc7d7536675af4ae5cdfbba12612751d0
SHA256

abaefa482e3cd3b2a498a83530a0418e32078e81d975c69b13dfd8dd12213b5a
SHA512

9e83c8e1b5cf7e3ac2d6fb342923f17d15ca6677301ae8ea5fe8a4201a68b37951bc17befc4e06b3fbfa376204b3c1c2d8ddcd2a07173a9bf47971aea0cc7992
SSDEEP

49152:IFno/jfQJtTF+TxMoxc1TU+j+dAzGkiT:IFno/jotIuoITsdZT

Score

10^/10

stealc vidar discovery spyware stealer

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://steamcommunity.com/profiles/76561199686524322

https://t.me/k0mono

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4.1 Safari/605.1.15 Ddg/17.4.1

Signatures

Detect Vidar Stealer 8 IoCs

stealer

resource	yara_rule
behavioral2/memory/1416-1-0x0000000004070000-0x00000000041B9000-memory.dmp	family_vidar_v7
behavioral2/memory/4484-8-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4484-10-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4484-4-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4484-14-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4484-15-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4484-32-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4484-33-0x0000000000400000-0x0000000000646000-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

Executes dropped EXE 1 IoCs

pid	Process
4484	kat593C.tmp

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
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 1416 set thread context of 4484	1416	abaefa482e3cd3b2a498a83530a0418e32078e81d975c69b13dfd8dd12213b5a.exe	84

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	kat593C.tmp

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4484	kat593C.tmp
4484	kat593C.tmp

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1416 wrote to memory of 4484	1416	abaefa482e3cd3b2a498a83530a0418e32078e81d975c69b13dfd8dd12213b5a.exe	84
PID 1416 wrote to memory of 4484	1416	abaefa482e3cd3b2a498a83530a0418e32078e81d975c69b13dfd8dd12213b5a.exe	84
PID 1416 wrote to memory of 4484	1416	abaefa482e3cd3b2a498a83530a0418e32078e81d975c69b13dfd8dd12213b5a.exe	84
PID 1416 wrote to memory of 4484	1416	abaefa482e3cd3b2a498a83530a0418e32078e81d975c69b13dfd8dd12213b5a.exe	84
PID 1416 wrote to memory of 4484	1416	abaefa482e3cd3b2a498a83530a0418e32078e81d975c69b13dfd8dd12213b5a.exe	84
PID 1416 wrote to memory of 4484	1416	abaefa482e3cd3b2a498a83530a0418e32078e81d975c69b13dfd8dd12213b5a.exe	84
PID 1416 wrote to memory of 4484	1416	abaefa482e3cd3b2a498a83530a0418e32078e81d975c69b13dfd8dd12213b5a.exe	84
PID 1416 wrote to memory of 4484	1416	abaefa482e3cd3b2a498a83530a0418e32078e81d975c69b13dfd8dd12213b5a.exe	84

C:\Users\Admin\AppData\Local\Temp\abaefa482e3cd3b2a498a83530a0418e32078e81d975c69b13dfd8dd12213b5a.exe
"C:\Users\Admin\AppData\Local\Temp\abaefa482e3cd3b2a498a83530a0418e32078e81d975c69b13dfd8dd12213b5a.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1416
- C:\Users\Admin\AppData\Local\Temp\kat593C.tmp
  C:\Users\Admin\AppData\Local\Temp\kat593C.tmp
  2⤵
  - Executes dropped EXE
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:4484

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

2

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\kat593C.tmp

Filesize
861KB

MD5
66064dbdb70a5eb15ebf3bf65aba254b

SHA1
0284fd320f99f62aca800fb1251eff4c31ec4ed7

SHA256
6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795

SHA512
b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

Download Submit
memory/1416-0-0x00000000007E0000-0x00000000007E1000-memory.dmp

Filesize
4KB

Download
memory/1416-1-0x0000000004070000-0x00000000041B9000-memory.dmp

Filesize
1.3MB

Download
memory/1416-9-0x0000000000400000-0x0000000000602000-memory.dmp

Filesize
2.0MB

Download
memory/4484-8-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4484-10-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4484-4-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4484-14-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4484-15-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4484-17-0x000000001DC50000-0x000000001DEAF000-memory.dmp

Filesize
2.4MB

Download
memory/4484-32-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4484-33-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads