stealc | bf4bd835390e2607c737360a2527ea292bd0451507f93b623d3f9bbf4036c2fe

General

Target

bf4bd835390e2607c737360a2527ea292bd0451507f93b623d3f9bbf4036c2fe.exe
Size

216KB
MD5

082c8a659fa07a63f6078b1cbd00ae2a
SHA1

ad6838c2971e01120b5f1c4a264d090c74fa0816
SHA256

bf4bd835390e2607c737360a2527ea292bd0451507f93b623d3f9bbf4036c2fe
SHA512

57eeb9cf08eb6d68941b029465771fb5f5aedb34f73d06212f0480f5cccf72873d6c75abf5346d8c352c65fbe5959dbc9323015b35416b278db999f6304a0b6a
SSDEEP

6144:XTlqP0Xx9vlkheKNH+exE+NkO24Y9EV9GEO:jlbXLCh8ElCNEV9GEO

Score

10^/10

stealc default discovery stealer

Malware Config

Extracted

Family

stealc

Botnet

default

C2

http://46.8.231.109

Attributes

url_path
/c4754d4f680ead72.php

Signatures

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2520 set thread context of 1924	2520	bf4bd835390e2607c737360a2527ea292bd0451507f93b623d3f9bbf4036c2fe.exe	32

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2772	1924	WerFault.exe	32

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	bf4bd835390e2607c737360a2527ea292bd0451507f93b623d3f9bbf4036c2fe.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 2520 wrote to memory of 1632	2520	bf4bd835390e2607c737360a2527ea292bd0451507f93b623d3f9bbf4036c2fe.exe	31
PID 2520 wrote to memory of 1632	2520	bf4bd835390e2607c737360a2527ea292bd0451507f93b623d3f9bbf4036c2fe.exe	31
PID 2520 wrote to memory of 1632	2520	bf4bd835390e2607c737360a2527ea292bd0451507f93b623d3f9bbf4036c2fe.exe	31
PID 2520 wrote to memory of 1632	2520	bf4bd835390e2607c737360a2527ea292bd0451507f93b623d3f9bbf4036c2fe.exe	31
PID 2520 wrote to memory of 1632	2520	bf4bd835390e2607c737360a2527ea292bd0451507f93b623d3f9bbf4036c2fe.exe	31
PID 2520 wrote to memory of 1632	2520	bf4bd835390e2607c737360a2527ea292bd0451507f93b623d3f9bbf4036c2fe.exe	31
PID 2520 wrote to memory of 1632	2520	bf4bd835390e2607c737360a2527ea292bd0451507f93b623d3f9bbf4036c2fe.exe	31
PID 2520 wrote to memory of 1924	2520	bf4bd835390e2607c737360a2527ea292bd0451507f93b623d3f9bbf4036c2fe.exe	32
PID 2520 wrote to memory of 1924	2520	bf4bd835390e2607c737360a2527ea292bd0451507f93b623d3f9bbf4036c2fe.exe	32
PID 2520 wrote to memory of 1924	2520	bf4bd835390e2607c737360a2527ea292bd0451507f93b623d3f9bbf4036c2fe.exe	32
PID 2520 wrote to memory of 1924	2520	bf4bd835390e2607c737360a2527ea292bd0451507f93b623d3f9bbf4036c2fe.exe	32
PID 2520 wrote to memory of 1924	2520	bf4bd835390e2607c737360a2527ea292bd0451507f93b623d3f9bbf4036c2fe.exe	32
PID 2520 wrote to memory of 1924	2520	bf4bd835390e2607c737360a2527ea292bd0451507f93b623d3f9bbf4036c2fe.exe	32
PID 2520 wrote to memory of 1924	2520	bf4bd835390e2607c737360a2527ea292bd0451507f93b623d3f9bbf4036c2fe.exe	32
PID 2520 wrote to memory of 1924	2520	bf4bd835390e2607c737360a2527ea292bd0451507f93b623d3f9bbf4036c2fe.exe	32
PID 2520 wrote to memory of 1924	2520	bf4bd835390e2607c737360a2527ea292bd0451507f93b623d3f9bbf4036c2fe.exe	32
PID 2520 wrote to memory of 1924	2520	bf4bd835390e2607c737360a2527ea292bd0451507f93b623d3f9bbf4036c2fe.exe	32
PID 2520 wrote to memory of 1924	2520	bf4bd835390e2607c737360a2527ea292bd0451507f93b623d3f9bbf4036c2fe.exe	32
PID 2520 wrote to memory of 1924	2520	bf4bd835390e2607c737360a2527ea292bd0451507f93b623d3f9bbf4036c2fe.exe	32
PID 2520 wrote to memory of 1924	2520	bf4bd835390e2607c737360a2527ea292bd0451507f93b623d3f9bbf4036c2fe.exe	32
PID 1924 wrote to memory of 2772	1924	RegAsm.exe	33
PID 1924 wrote to memory of 2772	1924	RegAsm.exe	33
PID 1924 wrote to memory of 2772	1924	RegAsm.exe	33
PID 1924 wrote to memory of 2772	1924	RegAsm.exe	33

C:\Users\Admin\AppData\Local\Temp\bf4bd835390e2607c737360a2527ea292bd0451507f93b623d3f9bbf4036c2fe.exe
"C:\Users\Admin\AppData\Local\Temp\bf4bd835390e2607c737360a2527ea292bd0451507f93b623d3f9bbf4036c2fe.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2520
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:1632
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1924
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1924 -s 252
    3⤵
    - Program crash
    PID:2772

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1924-13-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/1924-6-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/1924-17-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/1924-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1924-14-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/1924-9-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/1924-8-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/1924-5-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/1924-7-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2520-1-0x00000000012F0000-0x0000000001328000-memory.dmp

Filesize
224KB

Download
memory/2520-0-0x00000000740BE000-0x00000000740BF000-memory.dmp

Filesize
4KB

Download
memory/2520-4-0x00000000740B0000-0x000000007479E000-memory.dmp

Filesize
6.9MB

Download
memory/2520-15-0x00000000740B0000-0x000000007479E000-memory.dmp

Filesize
6.9MB

Download
memory/2520-2-0x00000000740B0000-0x000000007479E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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