stealc | b16ef1bdc9bcba0db197bba5bca6fa08ece713de76412e6bea6de5a8dab2af6f

Analysis

max time kernel
31s
max time network
143s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
09/09/2024, 03:31

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General

Target

b16ef1bdc9bcba0db197bba5bca6fa08ece713de76412e6bea6de5a8dab2af6f.exe
Size

206KB
MD5

45fb3cd11b294fe8a05691cdab474786
SHA1

cfec8cb59f94b534280f47fcadd68af89107f124
SHA256

b16ef1bdc9bcba0db197bba5bca6fa08ece713de76412e6bea6de5a8dab2af6f
SHA512

e1e26c7706f8d74ae1a0d6d9b1765ee81440746428ea9c6ca9127326dc8fdb2b2419a79109734848978866f52741902f99031b47cb2c9a09427e5a13f51f1f81
SSDEEP

3072:xpd1ryZS4TFEOXqiJb2RztrqvXACp12ob5cNJtFRJodNpzGj8dmfcUY8ll4BzEBO:jdpyIGLCNt8p12hJtFPod7aQIfFWBYBO

Score

10^/10

stealc default discovery stealer

Malware Config

Extracted

Family

stealc

Botnet

default

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 4768 set thread context of 4948	4768	b16ef1bdc9bcba0db197bba5bca6fa08ece713de76412e6bea6de5a8dab2af6f.exe	82

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	b16ef1bdc9bcba0db197bba5bca6fa08ece713de76412e6bea6de5a8dab2af6f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4768 wrote to memory of 4948	4768	b16ef1bdc9bcba0db197bba5bca6fa08ece713de76412e6bea6de5a8dab2af6f.exe	82
PID 4768 wrote to memory of 4948	4768	b16ef1bdc9bcba0db197bba5bca6fa08ece713de76412e6bea6de5a8dab2af6f.exe	82
PID 4768 wrote to memory of 4948	4768	b16ef1bdc9bcba0db197bba5bca6fa08ece713de76412e6bea6de5a8dab2af6f.exe	82
PID 4768 wrote to memory of 4948	4768	b16ef1bdc9bcba0db197bba5bca6fa08ece713de76412e6bea6de5a8dab2af6f.exe	82
PID 4768 wrote to memory of 4948	4768	b16ef1bdc9bcba0db197bba5bca6fa08ece713de76412e6bea6de5a8dab2af6f.exe	82
PID 4768 wrote to memory of 4948	4768	b16ef1bdc9bcba0db197bba5bca6fa08ece713de76412e6bea6de5a8dab2af6f.exe	82
PID 4768 wrote to memory of 4948	4768	b16ef1bdc9bcba0db197bba5bca6fa08ece713de76412e6bea6de5a8dab2af6f.exe	82
PID 4768 wrote to memory of 4948	4768	b16ef1bdc9bcba0db197bba5bca6fa08ece713de76412e6bea6de5a8dab2af6f.exe	82
PID 4768 wrote to memory of 4948	4768	b16ef1bdc9bcba0db197bba5bca6fa08ece713de76412e6bea6de5a8dab2af6f.exe	82

C:\Users\Admin\AppData\Local\Temp\b16ef1bdc9bcba0db197bba5bca6fa08ece713de76412e6bea6de5a8dab2af6f.exe
"C:\Users\Admin\AppData\Local\Temp\b16ef1bdc9bcba0db197bba5bca6fa08ece713de76412e6bea6de5a8dab2af6f.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4768
- 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
  PID:4948

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

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Downloads

memory/4768-0-0x00000000749AE000-0x00000000749AF000-memory.dmp

Filesize
4KB

Download
memory/4768-1-0x0000000000660000-0x0000000000698000-memory.dmp

Filesize
224KB

Download
memory/4768-7-0x00000000749A0000-0x0000000075151000-memory.dmp

Filesize
7.7MB

Download
memory/4948-3-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/4948-6-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/4948-8-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/4948-9-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download