stealc | 69a8636a364f7a944141c6e714f63ed815c53b5e4ac160e711d423e560761021

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
28/06/2024, 01:26

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General

Target
69a8636a364f7a944141c6e714f63ed815c53b5e4ac160e711d423e560761021.exe
Size 1.5MB
Sample240628-bthw7stcnc
SHA256 69a8636a364f7a944141c6e714f63ed815c53b5e4ac160e711d423e560761021
MD5 84fbc1e8495f2ca1f2227b6e62b5f25d
SHA1 58252404dfd29279a9a8fb742e31a1d71864af70
SHA512 88ba1c27fa0e15a84da48bcdf9938a27e2a40820a0bb833c6d18307895c0ae7fbdc30298904b7ad858970b779839c8128abce806850d5af5cdbe8a60bd818fdf
SSDEEP 24576:1K9MHjif9yKK3gBlsXbvLbLUJ70Uj654koEBETT2TjyAAk:1/jwwKKQl+bH4JbjzzEBETT2T5
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

stealc default discovery stealer

Malware Config

Extracted

Family

stealc

Botnet

default

http://68.183.108.129

Attributes

url_path
/6259fdc16222e061.php

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer stealc

Executes dropped EXE 1 IoCs

pid	Process
2544	kat499C.tmp

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 4496 set thread context of 2544	4496	69a8636a364f7a944141c6e714f63ed815c53b5e4ac160e711d423e560761021.exe	86

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4412	2544	WerFault.exe	86

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	kat499C.tmp
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	kat499C.tmp

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2544	kat499C.tmp
2544	kat499C.tmp

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4496 wrote to memory of 2544	4496	69a8636a364f7a944141c6e714f63ed815c53b5e4ac160e711d423e560761021.exe	86
PID 4496 wrote to memory of 2544	4496	69a8636a364f7a944141c6e714f63ed815c53b5e4ac160e711d423e560761021.exe	86
PID 4496 wrote to memory of 2544	4496	69a8636a364f7a944141c6e714f63ed815c53b5e4ac160e711d423e560761021.exe	86
PID 4496 wrote to memory of 2544	4496	69a8636a364f7a944141c6e714f63ed815c53b5e4ac160e711d423e560761021.exe	86
PID 4496 wrote to memory of 2544	4496	69a8636a364f7a944141c6e714f63ed815c53b5e4ac160e711d423e560761021.exe	86
PID 4496 wrote to memory of 2544	4496	69a8636a364f7a944141c6e714f63ed815c53b5e4ac160e711d423e560761021.exe	86
PID 4496 wrote to memory of 2544	4496	69a8636a364f7a944141c6e714f63ed815c53b5e4ac160e711d423e560761021.exe	86
PID 4496 wrote to memory of 2544	4496	69a8636a364f7a944141c6e714f63ed815c53b5e4ac160e711d423e560761021.exe	86

C:\Users\Admin\AppData\Local\Temp\69a8636a364f7a944141c6e714f63ed815c53b5e4ac160e711d423e560761021.exe
"C:\Users\Admin\AppData\Local\Temp\69a8636a364f7a944141c6e714f63ed815c53b5e4ac160e711d423e560761021.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4496
- C:\Users\Admin\AppData\Local\Temp\kat499C.tmp
  C:\Users\Admin\AppData\Local\Temp\kat499C.tmp
  2⤵
  - Executes dropped EXE
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:2544
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2544 -s 1268
    3⤵
    - Program crash
    PID:4412

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2544 -ip 2544
1⤵
PID:4388

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

kat499C.tmp

Path C:\Users\Admin\AppData\Local\Temp\kat499C.tmp
Size 861KB
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
SSDEEP 24576:o0ESdQpglO1CxDyawn27h+9hrlgKQY9SGcZwCdTp:o0RIglO1CuL9VNcaCd9
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/2544-15-0x0000000000400000-0x000000000063C000-memory.dmp

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memory/2544-9-0x0000000000400000-0x000000000063C000-memory.dmp

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memory/2544-4-0x0000000000400000-0x000000000063C000-memory.dmp

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memory/2544-8-0x0000000000400000-0x000000000063C000-memory.dmp

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memory/2544-11-0x0000000000400000-0x000000000063C000-memory.dmp

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memory/2544-13-0x0000000000400000-0x000000000063C000-memory.dmp

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memory/2544-17-0x0000000000400000-0x000000000063C000-memory.dmp

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memory/2544-19-0x0000000000400000-0x000000000063C000-memory.dmp

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memory/2544-21-0x0000000000400000-0x000000000063C000-memory.dmp

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memory/4496-1-0x00000000029C0000-0x0000000002AC4000-memory.dmp

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memory/4496-10-0x0000000000400000-0x0000000000584000-memory.dmp

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memory/4496-0-0x0000000000840000-0x0000000000841000-memory.dmp

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