stealc | 5afff322d4b56afbe4429c6fd83aa2d699c51dbf4f5495b08ac104f07da8c49d

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
15-09-2024 10:58

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General

Target

aNj1aFSOxohqZwe847hVpx4K.exe
Size

207KB
MD5

b20dff2e59e94e48d6449fb22ec6411b
SHA1

07a0dc8735b048696d8db42ad689ba8c9bbbccc9
SHA256

5afff322d4b56afbe4429c6fd83aa2d699c51dbf4f5495b08ac104f07da8c49d
SHA512

2119e9b24c133d556d3e9e293914e720b012e5dfd492e90dcec1c4ae75f29b01a38037f4741cd5ec1d4bda3e4c24f81627f7f39d140d82aab168c44942d55a3b
SSDEEP

3072:m9lvA05ye1dltQgaGcNQ+GubyWGBFbELlAqhxql2ihUuDtiZOYItDia4iGYp/qgh:mbIuJQrueGB1AKDvQlIQYVEO

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 2648 set thread context of 2808	2648	aNj1aFSOxohqZwe847hVpx4K.exe	31

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2784	2808	WerFault.exe	31

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	aNj1aFSOxohqZwe847hVpx4K.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2648 wrote to memory of 2808	2648	aNj1aFSOxohqZwe847hVpx4K.exe	31
PID 2648 wrote to memory of 2808	2648	aNj1aFSOxohqZwe847hVpx4K.exe	31
PID 2648 wrote to memory of 2808	2648	aNj1aFSOxohqZwe847hVpx4K.exe	31
PID 2648 wrote to memory of 2808	2648	aNj1aFSOxohqZwe847hVpx4K.exe	31
PID 2648 wrote to memory of 2808	2648	aNj1aFSOxohqZwe847hVpx4K.exe	31
PID 2648 wrote to memory of 2808	2648	aNj1aFSOxohqZwe847hVpx4K.exe	31
PID 2648 wrote to memory of 2808	2648	aNj1aFSOxohqZwe847hVpx4K.exe	31
PID 2648 wrote to memory of 2808	2648	aNj1aFSOxohqZwe847hVpx4K.exe	31
PID 2648 wrote to memory of 2808	2648	aNj1aFSOxohqZwe847hVpx4K.exe	31
PID 2648 wrote to memory of 2808	2648	aNj1aFSOxohqZwe847hVpx4K.exe	31
PID 2648 wrote to memory of 2808	2648	aNj1aFSOxohqZwe847hVpx4K.exe	31
PID 2648 wrote to memory of 2808	2648	aNj1aFSOxohqZwe847hVpx4K.exe	31
PID 2648 wrote to memory of 2808	2648	aNj1aFSOxohqZwe847hVpx4K.exe	31
PID 2808 wrote to memory of 2784	2808	RegAsm.exe	32
PID 2808 wrote to memory of 2784	2808	RegAsm.exe	32
PID 2808 wrote to memory of 2784	2808	RegAsm.exe	32
PID 2808 wrote to memory of 2784	2808	RegAsm.exe	32

C:\Users\Admin\AppData\Local\Temp\aNj1aFSOxohqZwe847hVpx4K.exe
"C:\Users\Admin\AppData\Local\Temp\aNj1aFSOxohqZwe847hVpx4K.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2648
- 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:2808
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2808 -s 252
    3⤵
    - Program crash
    PID:2784

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/2648-0-0x0000000074BEE000-0x0000000074BEF000-memory.dmp

Filesize
4KB

Download
memory/2648-1-0x00000000013B0000-0x00000000013E8000-memory.dmp

Filesize
224KB

Download
memory/2648-16-0x0000000074BE0000-0x00000000752CE000-memory.dmp

Filesize
6.9MB

Download
memory/2808-3-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2808-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2808-7-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2808-6-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2808-5-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2808-4-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2808-15-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2808-13-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2808-11-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download