stealc | 6276ecb60a140c385560e69ed99b753201783c09757bfabd89f18c9f799662ac

General

Target

6276ecb60a140c385560e69ed99b753201783c09757bfabd89f18c9f799662ac.exe
Size

1.6MB
MD5

9c8601829a2f3f0c7d3f6ec8151424ef
SHA1

a2340bab95deba65ccb0636823471387fbe69d3a
SHA256

6276ecb60a140c385560e69ed99b753201783c09757bfabd89f18c9f799662ac
SHA512

95d5119aeb541784f3398bece7ca3ef38b5cfd3696aacd430f63f4503eadde405b29d0d9d1cd9e81c4b960e4673258495ccb621d7cfe711536c515b03b8e31f5
SSDEEP

24576:spM5863IGfTAVpalB8UfMxVVtes12FxwojKr98YGeGG9i:spQLYkTYp6B8UkxVVChjHZQs

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/5000-2-0x0000000003F50000-0x0000000004060000-memory.dmp	family_vidar_v7
behavioral1/memory/924-4-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/924-8-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/924-9-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/924-24-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/924-25-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/924-42-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/924-43-0x0000000000400000-0x0000000000648000-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:

kat35B6.tmp

pid process

924 kat35B6.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
924	kat35B6.tmp

Suspicious use of SetThreadContext 1 IoCs

Processes:

6276ecb60a140c385560e69ed99b753201783c09757bfabd89f18c9f799662ac.exe

description	pid	process	target process
PID 5000 set thread context of 924	5000	6276ecb60a140c385560e69ed99b753201783c09757bfabd89f18c9f799662ac.exe	kat35B6.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:

kat35B6.tmp

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat35B6.tmp
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

kat35B6.tmp

pid process

924 kat35B6.tmp
924 kat35B6.tmp

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	kat35B6.tmp

pid	process
924	kat35B6.tmp
924	kat35B6.tmp

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

6276ecb60a140c385560e69ed99b753201783c09757bfabd89f18c9f799662ac.exe

description	pid	process	target process
PID 5000 wrote to memory of 924	5000	6276ecb60a140c385560e69ed99b753201783c09757bfabd89f18c9f799662ac.exe	kat35B6.tmp
PID 5000 wrote to memory of 924	5000	6276ecb60a140c385560e69ed99b753201783c09757bfabd89f18c9f799662ac.exe	kat35B6.tmp
PID 5000 wrote to memory of 924	5000	6276ecb60a140c385560e69ed99b753201783c09757bfabd89f18c9f799662ac.exe	kat35B6.tmp
PID 5000 wrote to memory of 924	5000	6276ecb60a140c385560e69ed99b753201783c09757bfabd89f18c9f799662ac.exe	kat35B6.tmp
PID 5000 wrote to memory of 924	5000	6276ecb60a140c385560e69ed99b753201783c09757bfabd89f18c9f799662ac.exe	kat35B6.tmp
PID 5000 wrote to memory of 924	5000	6276ecb60a140c385560e69ed99b753201783c09757bfabd89f18c9f799662ac.exe	kat35B6.tmp
PID 5000 wrote to memory of 924	5000	6276ecb60a140c385560e69ed99b753201783c09757bfabd89f18c9f799662ac.exe	kat35B6.tmp
PID 5000 wrote to memory of 924	5000	6276ecb60a140c385560e69ed99b753201783c09757bfabd89f18c9f799662ac.exe	kat35B6.tmp

C:\Users\Admin\AppData\Local\Temp\6276ecb60a140c385560e69ed99b753201783c09757bfabd89f18c9f799662ac.exe
"C:\Users\Admin\AppData\Local\Temp\6276ecb60a140c385560e69ed99b753201783c09757bfabd89f18c9f799662ac.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5000

C:\Users\Admin\AppData\Local\Temp\kat35B6.tmp
C:\Users\Admin\AppData\Local\Temp\kat35B6.tmp
2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:924

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\kat35B6.tmp
Filesize
861KB

MD5
66064dbdb70a5eb15ebf3bf65aba254b

SHA1
0284fd320f99f62aca800fb1251eff4c31ec4ed7

SHA256
6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795

SHA512
b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

Download Submit
memory/924-4-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/924-8-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/924-9-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/924-24-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/924-25-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/924-27-0x0000000025FA0000-0x00000000261FF000-memory.dmp

Filesize
2.4MB

Download
memory/924-42-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/924-43-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/5000-0-0x0000000002200000-0x0000000002201000-memory.dmp

Filesize
4KB

Download
memory/5000-2-0x0000000003F50000-0x0000000004060000-memory.dmp

Filesize
1.1MB

Download
memory/5000-10-0x0000000000400000-0x0000000000594000-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