stealc | e0a289e2dea452f103f6063753caab673365d0d848453c84d9b9933f933841ce

General

Target

e0a289e2dea452f103f6063753caab673365d0d848453c84d9b9933f933841ce.exe
Size

1.6MB
MD5

cd475255d9399b754767aee8ef02e6f8
SHA1

9917ed1b8e82ccffeefa839323d011a244239317
SHA256

e0a289e2dea452f103f6063753caab673365d0d848453c84d9b9933f933841ce
SHA512

592e84428cd91b5ec8c94ea9b7407e7a4c8d5769dfda180a66548b7caffd14960cf04ab2b1808d7f3de64624a3bec7b809b548187561674f382860ea3ef971bd
SSDEEP

24576:spM5863IGfTAVpalBKUfMxVVtes12FxwojKr98YGeGG9i:spQLYkTYp6BKUkxVVChjHZQs

Score

10^/10

stealc vidar discovery spyware stealer

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://t.me/r8z0l

https://steamcommunity.com/profiles/76561199698764354

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 8 IoCs

stealer

Processes:

resource	yara_rule
behavioral1/memory/4720-1-0x0000000003FD0000-0x00000000040E0000-memory.dmp	family_vidar_v7
behavioral1/memory/2392-8-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2392-4-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2392-10-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2392-24-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2392-25-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2392-42-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2392-43-0x0000000000400000-0x0000000000648000-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
Downloads MZ/PE file
Executes dropped EXE 1 IoCs

Processes:

kat2CDC.tmp

pid process

2392 kat2CDC.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

pid	process
2392	kat2CDC.tmp

Suspicious use of SetThreadContext 1 IoCs

Processes:

e0a289e2dea452f103f6063753caab673365d0d848453c84d9b9933f933841ce.exe

description	pid	process	target process
PID 4720 set thread context of 2392	4720	e0a289e2dea452f103f6063753caab673365d0d848453c84d9b9933f933841ce.exe	kat2CDC.tmp

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:

kat2CDC.tmp

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat2CDC.tmp
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

kat2CDC.tmp

pid process

2392 kat2CDC.tmp
2392 kat2CDC.tmp

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	kat2CDC.tmp

pid	process
2392	kat2CDC.tmp
2392	kat2CDC.tmp

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

e0a289e2dea452f103f6063753caab673365d0d848453c84d9b9933f933841ce.exe

description	pid	process	target process
PID 4720 wrote to memory of 2392	4720	e0a289e2dea452f103f6063753caab673365d0d848453c84d9b9933f933841ce.exe	kat2CDC.tmp
PID 4720 wrote to memory of 2392	4720	e0a289e2dea452f103f6063753caab673365d0d848453c84d9b9933f933841ce.exe	kat2CDC.tmp
PID 4720 wrote to memory of 2392	4720	e0a289e2dea452f103f6063753caab673365d0d848453c84d9b9933f933841ce.exe	kat2CDC.tmp
PID 4720 wrote to memory of 2392	4720	e0a289e2dea452f103f6063753caab673365d0d848453c84d9b9933f933841ce.exe	kat2CDC.tmp
PID 4720 wrote to memory of 2392	4720	e0a289e2dea452f103f6063753caab673365d0d848453c84d9b9933f933841ce.exe	kat2CDC.tmp
PID 4720 wrote to memory of 2392	4720	e0a289e2dea452f103f6063753caab673365d0d848453c84d9b9933f933841ce.exe	kat2CDC.tmp
PID 4720 wrote to memory of 2392	4720	e0a289e2dea452f103f6063753caab673365d0d848453c84d9b9933f933841ce.exe	kat2CDC.tmp
PID 4720 wrote to memory of 2392	4720	e0a289e2dea452f103f6063753caab673365d0d848453c84d9b9933f933841ce.exe	kat2CDC.tmp

C:\Users\Admin\AppData\Local\Temp\e0a289e2dea452f103f6063753caab673365d0d848453c84d9b9933f933841ce.exe
"C:\Users\Admin\AppData\Local\Temp\e0a289e2dea452f103f6063753caab673365d0d848453c84d9b9933f933841ce.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4720

C:\Users\Admin\AppData\Local\Temp\kat2CDC.tmp
C:\Users\Admin\AppData\Local\Temp\kat2CDC.tmp
2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:2392

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

2

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\kat2CDC.tmp
Filesize
861KB

MD5
66064dbdb70a5eb15ebf3bf65aba254b

SHA1
0284fd320f99f62aca800fb1251eff4c31ec4ed7

SHA256
6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795

SHA512
b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

Download Submit
memory/2392-8-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2392-4-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2392-10-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2392-24-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2392-25-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2392-27-0x0000000028470000-0x00000000286CF000-memory.dmp

Filesize
2.4MB

Download
memory/2392-42-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2392-43-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4720-0-0x0000000000660000-0x0000000000661000-memory.dmp

Filesize
4KB

Download
memory/4720-1-0x0000000003FD0000-0x00000000040E0000-memory.dmp

Filesize
1.1MB

Download
memory/4720-9-0x0000000000400000-0x0000000000594000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads