stealc | 40f2617cfc50b6e9db64c830f38e25cca0d2bd2b2d27f155cdce68ed6c6b26fd

Analysis

max time kernel
133s
max time network
126s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
30-06-2024 00:28

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General

Target

40f2617cfc50b6e9db64c830f38e25cca0d2bd2b2d27f155cdce68ed6c6b26fd.exe
Size

2.4MB
MD5

3a56a5f933e6b97840d88c99bc445f7b
SHA1

2406c6ebe491b5d3660b66922d90f250eeabe5fe
SHA256

40f2617cfc50b6e9db64c830f38e25cca0d2bd2b2d27f155cdce68ed6c6b26fd
SHA512

31a48b0e84b47527a1dafac792d831aa57d94adf826d947ac293a31c058e8f0054ceba4eabfa608829fc9b9608a844069b44298e4bdfe4c29ee8cee01ade765b
SSDEEP

49152:kCO+hnVrWzfxoJTlPQBad67HnEjtMvg1FyFQsLblux7z0Rncj2mcQop:kCOqnVg5WWkEDnEqveyFZRumpp

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 15 IoCs

Processes:

40f2617cfc50b6e9db64c830f38e25cca0d2bd2b2d27f155cdce68ed6c6b26fd.exe

pid	process
4472	40f2617cfc50b6e9db64c830f38e25cca0d2bd2b2d27f155cdce68ed6c6b26fd.exe
4472	40f2617cfc50b6e9db64c830f38e25cca0d2bd2b2d27f155cdce68ed6c6b26fd.exe
4472	40f2617cfc50b6e9db64c830f38e25cca0d2bd2b2d27f155cdce68ed6c6b26fd.exe
4472	40f2617cfc50b6e9db64c830f38e25cca0d2bd2b2d27f155cdce68ed6c6b26fd.exe
4472	40f2617cfc50b6e9db64c830f38e25cca0d2bd2b2d27f155cdce68ed6c6b26fd.exe
4472	40f2617cfc50b6e9db64c830f38e25cca0d2bd2b2d27f155cdce68ed6c6b26fd.exe
4472	40f2617cfc50b6e9db64c830f38e25cca0d2bd2b2d27f155cdce68ed6c6b26fd.exe
4472	40f2617cfc50b6e9db64c830f38e25cca0d2bd2b2d27f155cdce68ed6c6b26fd.exe
4472	40f2617cfc50b6e9db64c830f38e25cca0d2bd2b2d27f155cdce68ed6c6b26fd.exe
4472	40f2617cfc50b6e9db64c830f38e25cca0d2bd2b2d27f155cdce68ed6c6b26fd.exe
4472	40f2617cfc50b6e9db64c830f38e25cca0d2bd2b2d27f155cdce68ed6c6b26fd.exe
4472	40f2617cfc50b6e9db64c830f38e25cca0d2bd2b2d27f155cdce68ed6c6b26fd.exe
4472	40f2617cfc50b6e9db64c830f38e25cca0d2bd2b2d27f155cdce68ed6c6b26fd.exe
4472	40f2617cfc50b6e9db64c830f38e25cca0d2bd2b2d27f155cdce68ed6c6b26fd.exe
4472	40f2617cfc50b6e9db64c830f38e25cca0d2bd2b2d27f155cdce68ed6c6b26fd.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2600 4472 WerFault.exe 40f2617cfc50b6e9db64c830f38e25cca0d2bd2b2d27f155cdce68ed6c6b26fd.exe

pid	pid_target	process	target process
2600	4472	WerFault.exe	40f2617cfc50b6e9db64c830f38e25cca0d2bd2b2d27f155cdce68ed6c6b26fd.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:

40f2617cfc50b6e9db64c830f38e25cca0d2bd2b2d27f155cdce68ed6c6b26fd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	40f2617cfc50b6e9db64c830f38e25cca0d2bd2b2d27f155cdce68ed6c6b26fd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	40f2617cfc50b6e9db64c830f38e25cca0d2bd2b2d27f155cdce68ed6c6b26fd.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

40f2617cfc50b6e9db64c830f38e25cca0d2bd2b2d27f155cdce68ed6c6b26fd.exe

pid process

4472 40f2617cfc50b6e9db64c830f38e25cca0d2bd2b2d27f155cdce68ed6c6b26fd.exe
4472 40f2617cfc50b6e9db64c830f38e25cca0d2bd2b2d27f155cdce68ed6c6b26fd.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

40f2617cfc50b6e9db64c830f38e25cca0d2bd2b2d27f155cdce68ed6c6b26fd.exe

pid process

4472 40f2617cfc50b6e9db64c830f38e25cca0d2bd2b2d27f155cdce68ed6c6b26fd.exe

C:\Users\Admin\AppData\Local\Temp\40f2617cfc50b6e9db64c830f38e25cca0d2bd2b2d27f155cdce68ed6c6b26fd.exe
"C:\Users\Admin\AppData\Local\Temp\40f2617cfc50b6e9db64c830f38e25cca0d2bd2b2d27f155cdce68ed6c6b26fd.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:4472

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4472 -s 1376
2⤵
- Program crash
PID:2600

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4472 -ip 4472
1⤵
PID:928

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/4472-0-0x0000000000A00000-0x00000000015E9000-memory.dmp

Filesize
11.9MB

Download
memory/4472-1-0x000000007EAE0000-0x000000007EEB1000-memory.dmp

Filesize
3.8MB

Download
memory/4472-2-0x0000000000A00000-0x00000000015E9000-memory.dmp

Filesize
11.9MB

Download
memory/4472-3-0x0000000000A00000-0x00000000015E9000-memory.dmp

Filesize
11.9MB

Download
memory/4472-4-0x0000000000A00000-0x00000000015E9000-memory.dmp

Filesize
11.9MB

Download
memory/4472-5-0x000000007EAE0000-0x000000007EEB1000-memory.dmp

Filesize
3.8MB

Download
memory/4472-6-0x0000000000A00000-0x00000000015E9000-memory.dmp

Filesize
11.9MB

Download
memory/4472-7-0x0000000000A00000-0x00000000015E9000-memory.dmp

Filesize
11.9MB

Download
memory/4472-8-0x0000000000A00000-0x00000000015E9000-memory.dmp

Filesize
11.9MB

Download
memory/4472-9-0x0000000000A00000-0x00000000015E9000-memory.dmp

Filesize
11.9MB

Download
memory/4472-10-0x0000000000A00000-0x00000000015E9000-memory.dmp

Filesize
11.9MB

Download
memory/4472-11-0x0000000000A00000-0x00000000015E9000-memory.dmp

Filesize
11.9MB

Download
memory/4472-12-0x0000000000A00000-0x00000000015E9000-memory.dmp

Filesize
11.9MB

Download
memory/4472-13-0x0000000000A00000-0x00000000015E9000-memory.dmp

Filesize
11.9MB

Download
memory/4472-14-0x0000000000A00000-0x00000000015E9000-memory.dmp

Filesize
11.9MB

Download
memory/4472-15-0x0000000000A00000-0x00000000015E9000-memory.dmp

Filesize
11.9MB

Download
memory/4472-16-0x0000000000A00000-0x00000000015E9000-memory.dmp

Filesize
11.9MB

Download
memory/4472-17-0x0000000000A00000-0x00000000015E9000-memory.dmp

Filesize
11.9MB

Download