stealc | b913c38a5576306a5c2fe644b0ec7e56d3b20fd2b7beef0a6f16e9bd7d14a12b

Analysis

max time kernel
134s
max time network
123s
platform
windows11-21h2_x64
resource
win11-20240508-en
resource tags

arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
submitted
30-06-2024 20:39

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General

Target

b913c38a5576306a5c2fe644b0ec7e56d3b20fd2b7beef0a6f16e9bd7d14a12b.exe
Size

2.4MB
MD5

745cf21edd5863358874e5378e2d4289
SHA1

48d7e75a8754d3fca69f594ca3d1169642402128
SHA256

b913c38a5576306a5c2fe644b0ec7e56d3b20fd2b7beef0a6f16e9bd7d14a12b
SHA512

c32df119e3068a31faad129610f6043bf37c42591430f3eb4a217d35d6e7d2a9bcb2acf41a21df690acd925e59de78e373f04dd2c5d1eb4c2c6702d522ad23df
SSDEEP

49152:uOYaSf0ogyG0a8TGjEgAT+r+WtHLoVkx+02aBeDYe9kuX:uOYaSsoRGBjiTGtHLMwepkuX

Score

10^/10

stealc default discovery stealer

Malware Config

Extracted

Family

stealc

Botnet

default

http://85.28.47.4

Attributes

url_path
/920475a59bac849d.php

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Suspicious use of NtSetInformationThreadHideFromDebugger 14 IoCs

Processes:

b913c38a5576306a5c2fe644b0ec7e56d3b20fd2b7beef0a6f16e9bd7d14a12b.exe

pid	process
1836	b913c38a5576306a5c2fe644b0ec7e56d3b20fd2b7beef0a6f16e9bd7d14a12b.exe
1836	b913c38a5576306a5c2fe644b0ec7e56d3b20fd2b7beef0a6f16e9bd7d14a12b.exe
1836	b913c38a5576306a5c2fe644b0ec7e56d3b20fd2b7beef0a6f16e9bd7d14a12b.exe
1836	b913c38a5576306a5c2fe644b0ec7e56d3b20fd2b7beef0a6f16e9bd7d14a12b.exe
1836	b913c38a5576306a5c2fe644b0ec7e56d3b20fd2b7beef0a6f16e9bd7d14a12b.exe
1836	b913c38a5576306a5c2fe644b0ec7e56d3b20fd2b7beef0a6f16e9bd7d14a12b.exe
1836	b913c38a5576306a5c2fe644b0ec7e56d3b20fd2b7beef0a6f16e9bd7d14a12b.exe
1836	b913c38a5576306a5c2fe644b0ec7e56d3b20fd2b7beef0a6f16e9bd7d14a12b.exe
1836	b913c38a5576306a5c2fe644b0ec7e56d3b20fd2b7beef0a6f16e9bd7d14a12b.exe
1836	b913c38a5576306a5c2fe644b0ec7e56d3b20fd2b7beef0a6f16e9bd7d14a12b.exe
1836	b913c38a5576306a5c2fe644b0ec7e56d3b20fd2b7beef0a6f16e9bd7d14a12b.exe
1836	b913c38a5576306a5c2fe644b0ec7e56d3b20fd2b7beef0a6f16e9bd7d14a12b.exe
1836	b913c38a5576306a5c2fe644b0ec7e56d3b20fd2b7beef0a6f16e9bd7d14a12b.exe
1836	b913c38a5576306a5c2fe644b0ec7e56d3b20fd2b7beef0a6f16e9bd7d14a12b.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1732 1836 WerFault.exe b913c38a5576306a5c2fe644b0ec7e56d3b20fd2b7beef0a6f16e9bd7d14a12b.exe

pid	pid_target	process	target process
1732	1836	WerFault.exe	b913c38a5576306a5c2fe644b0ec7e56d3b20fd2b7beef0a6f16e9bd7d14a12b.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

b913c38a5576306a5c2fe644b0ec7e56d3b20fd2b7beef0a6f16e9bd7d14a12b.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	b913c38a5576306a5c2fe644b0ec7e56d3b20fd2b7beef0a6f16e9bd7d14a12b.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	b913c38a5576306a5c2fe644b0ec7e56d3b20fd2b7beef0a6f16e9bd7d14a12b.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

b913c38a5576306a5c2fe644b0ec7e56d3b20fd2b7beef0a6f16e9bd7d14a12b.exe

pid process

1836 b913c38a5576306a5c2fe644b0ec7e56d3b20fd2b7beef0a6f16e9bd7d14a12b.exe
1836 b913c38a5576306a5c2fe644b0ec7e56d3b20fd2b7beef0a6f16e9bd7d14a12b.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

b913c38a5576306a5c2fe644b0ec7e56d3b20fd2b7beef0a6f16e9bd7d14a12b.exe

pid process

1836 b913c38a5576306a5c2fe644b0ec7e56d3b20fd2b7beef0a6f16e9bd7d14a12b.exe

C:\Users\Admin\AppData\Local\Temp\b913c38a5576306a5c2fe644b0ec7e56d3b20fd2b7beef0a6f16e9bd7d14a12b.exe
"C:\Users\Admin\AppData\Local\Temp\b913c38a5576306a5c2fe644b0ec7e56d3b20fd2b7beef0a6f16e9bd7d14a12b.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:1836

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1836 -s 936
2⤵
- Program crash
PID:1732

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1836 -ip 1836
1⤵
PID:2216

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/1836-0-0x0000000000180000-0x0000000000D6B000-memory.dmp

Filesize
11.9MB

Download
memory/1836-1-0x000000007EE50000-0x000000007F221000-memory.dmp

Filesize
3.8MB

Download
memory/1836-2-0x0000000000180000-0x0000000000D6B000-memory.dmp

Filesize
11.9MB

Download
memory/1836-3-0x0000000000180000-0x0000000000D6B000-memory.dmp

Filesize
11.9MB

Download
memory/1836-4-0x0000000000180000-0x0000000000D6B000-memory.dmp

Filesize
11.9MB

Download
memory/1836-5-0x000000007EE50000-0x000000007F221000-memory.dmp

Filesize
3.8MB

Download
memory/1836-6-0x0000000000180000-0x0000000000D6B000-memory.dmp

Filesize
11.9MB

Download
memory/1836-7-0x0000000000180000-0x0000000000D6B000-memory.dmp

Filesize
11.9MB

Download
memory/1836-8-0x0000000000180000-0x0000000000D6B000-memory.dmp

Filesize
11.9MB

Download
memory/1836-9-0x0000000000180000-0x0000000000D6B000-memory.dmp

Filesize
11.9MB

Download
memory/1836-10-0x0000000000180000-0x0000000000D6B000-memory.dmp

Filesize
11.9MB

Download
memory/1836-11-0x0000000000180000-0x0000000000D6B000-memory.dmp

Filesize
11.9MB

Download
memory/1836-12-0x0000000000180000-0x0000000000D6B000-memory.dmp

Filesize
11.9MB

Download
memory/1836-13-0x0000000000180000-0x0000000000D6B000-memory.dmp

Filesize
11.9MB

Download
memory/1836-14-0x0000000000180000-0x0000000000D6B000-memory.dmp

Filesize
11.9MB

Download
memory/1836-15-0x0000000000180000-0x0000000000D6B000-memory.dmp

Filesize
11.9MB

Download
memory/1836-16-0x0000000000180000-0x0000000000D6B000-memory.dmp

Filesize
11.9MB

Download
memory/1836-17-0x0000000000180000-0x0000000000D6B000-memory.dmp

Filesize
11.9MB

Download