stealc | 67fbf8993a834461d0dccdad8dc8190e6851d280286e322fedc13cef37f6c5fa

Analysis

max time kernel
1s
max time network
100s
platform
windows11-21h2_x64
resource
win11-20240426-en
resource tags

arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
submitted
07/06/2024, 03:35

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General

Target
67fbf8993a834461d0dccdad8dc8190e6851d280286e322fedc13cef37f6c5fa.exe
Size 2.9MB
Sample240607-d5fx4aab68
SHA256 67fbf8993a834461d0dccdad8dc8190e6851d280286e322fedc13cef37f6c5fa
MD5 3765f2522f3544aa1fadef36a62c0c09
SHA1 c550eac426af9007e0ccec9c879021cc408e17d7
SHA512 7ed7ede8897f65339732b705f950134ac4e2a3d2ee1aab3e29d50ed5c2894b473b9a798fb2218704a9f852f93c89fd34c19e48f074f381d839e4dd426076ba11
SSDEEP 49152:rtpSxptE1AKnCtMS4cdR/z4+UVi4e9Crn:r/4nE1dCiKxx4e9Cb
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

stealc vidar stealer

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

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

resource	yara_rule
behavioral2/memory/1100-1-0x0000000004170000-0x00000000042D6000-memory.dmp	family_vidar_v7
behavioral2/memory/5096-10-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/5096-8-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/5096-4-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/5096-15-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/5096-16-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/5096-33-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/5096-34-0x0000000000400000-0x0000000000648000-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

Executes dropped EXE 1 IoCs

pid	Process
5096	kat59F7.tmp

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1100 set thread context of 5096	1100	67fbf8993a834461d0dccdad8dc8190e6851d280286e322fedc13cef37f6c5fa.exe	76

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1100 wrote to memory of 5096	1100	67fbf8993a834461d0dccdad8dc8190e6851d280286e322fedc13cef37f6c5fa.exe	76
PID 1100 wrote to memory of 5096	1100	67fbf8993a834461d0dccdad8dc8190e6851d280286e322fedc13cef37f6c5fa.exe	76
PID 1100 wrote to memory of 5096	1100	67fbf8993a834461d0dccdad8dc8190e6851d280286e322fedc13cef37f6c5fa.exe	76
PID 1100 wrote to memory of 5096	1100	67fbf8993a834461d0dccdad8dc8190e6851d280286e322fedc13cef37f6c5fa.exe	76
PID 1100 wrote to memory of 5096	1100	67fbf8993a834461d0dccdad8dc8190e6851d280286e322fedc13cef37f6c5fa.exe	76
PID 1100 wrote to memory of 5096	1100	67fbf8993a834461d0dccdad8dc8190e6851d280286e322fedc13cef37f6c5fa.exe	76
PID 1100 wrote to memory of 5096	1100	67fbf8993a834461d0dccdad8dc8190e6851d280286e322fedc13cef37f6c5fa.exe	76
PID 1100 wrote to memory of 5096	1100	67fbf8993a834461d0dccdad8dc8190e6851d280286e322fedc13cef37f6c5fa.exe	76

C:\Users\Admin\AppData\Local\Temp\67fbf8993a834461d0dccdad8dc8190e6851d280286e322fedc13cef37f6c5fa.exe
"C:\Users\Admin\AppData\Local\Temp\67fbf8993a834461d0dccdad8dc8190e6851d280286e322fedc13cef37f6c5fa.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1100
- C:\Users\Admin\AppData\Local\Temp\kat59F7.tmp
  C:\Users\Admin\AppData\Local\Temp\kat59F7.tmp
  2⤵
  - Executes dropped EXE
  PID:5096

Network

MITRE ATT&CK Matrix

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kat59F7.tmp

Path C:\Users\Admin\AppData\Local\Temp\kat59F7.tmp
Size 861KB
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
SSDEEP 24576:o0ESdQpglO1CxDyawn27h+9hrlgKQY9SGcZwCdTp:o0RIglO1CuL9VNcaCd9
MD5 SHA1 SHA512 SSDEEP

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memory/1100-0-0x0000000002550000-0x0000000002551000-memory.dmp

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memory/1100-1-0x0000000004170000-0x00000000042D6000-memory.dmp

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memory/1100-9-0x0000000000400000-0x00000000006EF000-memory.dmp

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memory/5096-10-0x0000000000400000-0x0000000000648000-memory.dmp

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memory/5096-8-0x0000000000400000-0x0000000000648000-memory.dmp

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memory/5096-4-0x0000000000400000-0x0000000000648000-memory.dmp

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memory/5096-15-0x0000000000400000-0x0000000000648000-memory.dmp

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memory/5096-16-0x0000000000400000-0x0000000000648000-memory.dmp

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memory/5096-19-0x0000000019360000-0x00000000195BF000-memory.dmp

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memory/5096-33-0x0000000000400000-0x0000000000648000-memory.dmp

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memory/5096-34-0x0000000000400000-0x0000000000648000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

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