stealc | 21381b405bbb2d1ac38f1d908e0dc8a399fb2401d2ed1c1a300a2144626f9add

Analysis

max time kernel
14s
max time network
19s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
21/08/2024, 01:17

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General

Target

21381b405bbb2d1ac38f1d908e0dc8a399fb2401d2ed1c1a300a2144626f9add.exe
Size

2.8MB
MD5

993f5fdf3bd55f35661293167e39649a
SHA1

4dca34fd078faf357dbfb56181e2dbbaca2ae9d6
SHA256

21381b405bbb2d1ac38f1d908e0dc8a399fb2401d2ed1c1a300a2144626f9add
SHA512

04894447773cccabaeeb7c05599eab586376f54d3a9a482f21b3fa79b969e969e29bf5f2c55a36e4bdd433f763ed97926a632cd6b7d6ceead0ee75684b975f59
SSDEEP

49152:+qaUDr+obxLq3iaBwdxiMaxx1buynNoTugnzq3bZvTFTSXedTUDoCFRbH:1i3x13n+TuKz8bZv8XedyouRbH

Score

10^/10

stealc default discovery stealer

Malware Config

Extracted

Family

stealc

Botnet

default

http://193.176.190.41

Attributes

url_path
/2fa883eebd632382.php

Signatures

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2388 set thread context of 2196	2388	21381b405bbb2d1ac38f1d908e0dc8a399fb2401d2ed1c1a300a2144626f9add.exe	29

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2912	2196	WerFault.exe	29

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	21381b405bbb2d1ac38f1d908e0dc8a399fb2401d2ed1c1a300a2144626f9add.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2388 wrote to memory of 2196	2388	21381b405bbb2d1ac38f1d908e0dc8a399fb2401d2ed1c1a300a2144626f9add.exe	29
PID 2388 wrote to memory of 2196	2388	21381b405bbb2d1ac38f1d908e0dc8a399fb2401d2ed1c1a300a2144626f9add.exe	29
PID 2388 wrote to memory of 2196	2388	21381b405bbb2d1ac38f1d908e0dc8a399fb2401d2ed1c1a300a2144626f9add.exe	29
PID 2388 wrote to memory of 2196	2388	21381b405bbb2d1ac38f1d908e0dc8a399fb2401d2ed1c1a300a2144626f9add.exe	29
PID 2388 wrote to memory of 2196	2388	21381b405bbb2d1ac38f1d908e0dc8a399fb2401d2ed1c1a300a2144626f9add.exe	29
PID 2388 wrote to memory of 2196	2388	21381b405bbb2d1ac38f1d908e0dc8a399fb2401d2ed1c1a300a2144626f9add.exe	29
PID 2388 wrote to memory of 2196	2388	21381b405bbb2d1ac38f1d908e0dc8a399fb2401d2ed1c1a300a2144626f9add.exe	29
PID 2388 wrote to memory of 2196	2388	21381b405bbb2d1ac38f1d908e0dc8a399fb2401d2ed1c1a300a2144626f9add.exe	29
PID 2388 wrote to memory of 2196	2388	21381b405bbb2d1ac38f1d908e0dc8a399fb2401d2ed1c1a300a2144626f9add.exe	29
PID 2388 wrote to memory of 2196	2388	21381b405bbb2d1ac38f1d908e0dc8a399fb2401d2ed1c1a300a2144626f9add.exe	29
PID 2196 wrote to memory of 2912	2196	MSBuild.exe	30
PID 2196 wrote to memory of 2912	2196	MSBuild.exe	30
PID 2196 wrote to memory of 2912	2196	MSBuild.exe	30
PID 2196 wrote to memory of 2912	2196	MSBuild.exe	30

C:\Users\Admin\AppData\Local\Temp\21381b405bbb2d1ac38f1d908e0dc8a399fb2401d2ed1c1a300a2144626f9add.exe
"C:\Users\Admin\AppData\Local\Temp\21381b405bbb2d1ac38f1d908e0dc8a399fb2401d2ed1c1a300a2144626f9add.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2388
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2196
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2196 -s 44
    3⤵
    - Program crash
    PID:2912

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2196-9-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2196-11-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2196-13-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2196-10-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2196-5-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2196-7-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2196-6-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2196-4-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2388-0-0x0000000073B6E000-0x0000000073B6F000-memory.dmp

Filesize
4KB

Download
memory/2388-1-0x0000000000C00000-0x0000000000EDE000-memory.dmp

Filesize
2.9MB

Download
memory/2388-2-0x0000000004D40000-0x0000000004ED2000-memory.dmp

Filesize
1.6MB

Download
memory/2388-3-0x00000000004E0000-0x0000000000502000-memory.dmp

Filesize
136KB

Download