stealc | 7944f3816d40038d0921de513010f7f1d49b9ba56c18da88ee952c09fc8eab6d

Analysis

max time kernel
92s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22/12/2024, 07:06

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General

Target

JaffaCakes118_7944f3816d40038d0921de513010f7f1d49b9ba56c18da88ee952c09fc8eab6d.exe
Size

687.5MB
MD5

79d52020287e3977104d75fc7471e32a
SHA1

46dd7c10fe7bf8b9148ce75e4043c6f0bd00ba4c
SHA256

7944f3816d40038d0921de513010f7f1d49b9ba56c18da88ee952c09fc8eab6d
SHA512

a4e5a83bb233fab55fac9a717a5f297c0fb032f79fb68cac7acd6127dc41c4c88ad467c11d66a6ae8650c296ad8aae3dcdcfe93bbcc29b6082d2ac4146e83d32
SSDEEP

3072:U4Pz9hyuZrybA33ZHLnULZMBJlJJxbY/13oAbE6S91Kk7sK5ZKwBYxL6dUNX:5LTpz3Z0wxbYr4P91JsK5k3cUNX

Score

10^/10

stealc default discovery stealer

Malware Config

Extracted

Family

stealc

Botnet

default

http://185.99.133.229

Attributes

url_path
/4107e896e74f964e.php

rc4.plain

Signatures

Detects Stealc stealer 2 IoCs

stealer

resource	yara_rule
behavioral2/memory/5040-2-0x0000000000400000-0x000000000062A000-memory.dmp	family_stealc
behavioral2/memory/5040-7-0x0000000000400000-0x000000000062A000-memory.dmp	family_stealc

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1120 set thread context of 5040	1120	JaffaCakes118_7944f3816d40038d0921de513010f7f1d49b9ba56c18da88ee952c09fc8eab6d.exe	87

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3000	1120	WerFault.exe	84

System Location Discovery: System Language Discovery 1 TTPs 1 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	JaffaCakes118_7944f3816d40038d0921de513010f7f1d49b9ba56c18da88ee952c09fc8eab6d.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1120 wrote to memory of 5040	1120	JaffaCakes118_7944f3816d40038d0921de513010f7f1d49b9ba56c18da88ee952c09fc8eab6d.exe	87
PID 1120 wrote to memory of 5040	1120	JaffaCakes118_7944f3816d40038d0921de513010f7f1d49b9ba56c18da88ee952c09fc8eab6d.exe	87
PID 1120 wrote to memory of 5040	1120	JaffaCakes118_7944f3816d40038d0921de513010f7f1d49b9ba56c18da88ee952c09fc8eab6d.exe	87
PID 1120 wrote to memory of 5040	1120	JaffaCakes118_7944f3816d40038d0921de513010f7f1d49b9ba56c18da88ee952c09fc8eab6d.exe	87
PID 1120 wrote to memory of 5040	1120	JaffaCakes118_7944f3816d40038d0921de513010f7f1d49b9ba56c18da88ee952c09fc8eab6d.exe	87

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7944f3816d40038d0921de513010f7f1d49b9ba56c18da88ee952c09fc8eab6d.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7944f3816d40038d0921de513010f7f1d49b9ba56c18da88ee952c09fc8eab6d.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1120
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
  2⤵
  PID:5040
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1120 -s 328
  2⤵
  - Program crash
  PID:3000

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1120 -ip 1120
1⤵
PID:684

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/1120-0-0x00000000008CB000-0x00000000008CC000-memory.dmp

Filesize
4KB

Download
memory/5040-2-0x0000000000400000-0x000000000062A000-memory.dmp

Filesize
2.2MB

Download
memory/5040-7-0x0000000000400000-0x000000000062A000-memory.dmp

Filesize
2.2MB

Download