stealc | 9561f2e19612f381dfbe538ba59f4f6f4cefe5d0d0f26f0b7fa1fcd095b9f708

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2024 02:43

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General

Target

9561f2e19612f381dfbe538ba59f4f6f4cefe5d0d0f26f0b7fa1fcd095b9f708.exe
Size

1.7MB
MD5

c524f231dbe4c55a328876f06e2a82d1
SHA1

8d4c24359d577fcbc818158fc79554169690273b
SHA256

9561f2e19612f381dfbe538ba59f4f6f4cefe5d0d0f26f0b7fa1fcd095b9f708
SHA512

1020928371c8423fa4724a3d603d7b2823f97eae93190cc1337d95993acab9507bb3f361026d1757acb64c26e553ba17e6cb91020e0a525acf2b24aa167328a3
SSDEEP

49152:EWDzR3kVKyvwxbdJ60Lsv33hf+EsV7i7EO7Hf:EA+rkhJ60YJcV69b

Score

10^/10

stealc mars discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

mars

http://185.215.113.206

Attributes

url_path
/c4becf79229cb002.php

Signatures

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

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

Processes:

9561f2e19612f381dfbe538ba59f4f6f4cefe5d0d0f26f0b7fa1fcd095b9f708.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	9561f2e19612f381dfbe538ba59f4f6f4cefe5d0d0f26f0b7fa1fcd095b9f708.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

9561f2e19612f381dfbe538ba59f4f6f4cefe5d0d0f26f0b7fa1fcd095b9f708.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	9561f2e19612f381dfbe538ba59f4f6f4cefe5d0d0f26f0b7fa1fcd095b9f708.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	9561f2e19612f381dfbe538ba59f4f6f4cefe5d0d0f26f0b7fa1fcd095b9f708.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

Processes:

9561f2e19612f381dfbe538ba59f4f6f4cefe5d0d0f26f0b7fa1fcd095b9f708.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Wine	9561f2e19612f381dfbe538ba59f4f6f4cefe5d0d0f26f0b7fa1fcd095b9f708.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

9561f2e19612f381dfbe538ba59f4f6f4cefe5d0d0f26f0b7fa1fcd095b9f708.exe

pid	Process
3400	9561f2e19612f381dfbe538ba59f4f6f4cefe5d0d0f26f0b7fa1fcd095b9f708.exe

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

Processes:

9561f2e19612f381dfbe538ba59f4f6f4cefe5d0d0f26f0b7fa1fcd095b9f708.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9561f2e19612f381dfbe538ba59f4f6f4cefe5d0d0f26f0b7fa1fcd095b9f708.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

9561f2e19612f381dfbe538ba59f4f6f4cefe5d0d0f26f0b7fa1fcd095b9f708.exe

pid	Process
3400	9561f2e19612f381dfbe538ba59f4f6f4cefe5d0d0f26f0b7fa1fcd095b9f708.exe
3400	9561f2e19612f381dfbe538ba59f4f6f4cefe5d0d0f26f0b7fa1fcd095b9f708.exe

C:\Users\Admin\AppData\Local\Temp\9561f2e19612f381dfbe538ba59f4f6f4cefe5d0d0f26f0b7fa1fcd095b9f708.exe
"C:\Users\Admin\AppData\Local\Temp\9561f2e19612f381dfbe538ba59f4f6f4cefe5d0d0f26f0b7fa1fcd095b9f708.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:3400

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3400-0-0x0000000000E50000-0x00000000014D8000-memory.dmp

Filesize
6.5MB

Download
memory/3400-1-0x00000000777B4000-0x00000000777B6000-memory.dmp

Filesize
8KB

Download
memory/3400-2-0x0000000000E51000-0x0000000000E68000-memory.dmp

Filesize
92KB

Download
memory/3400-3-0x0000000000E50000-0x00000000014D8000-memory.dmp

Filesize
6.5MB

Download
memory/3400-5-0x0000000000E50000-0x00000000014D8000-memory.dmp

Filesize
6.5MB

Download