stealc | 4941447d19c770c63e441745710e13205f8a7f7b9b43fbddd4ae10b9de9790a5

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20-11-2024 08:34

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General

Target

4941447d19c770c63e441745710e13205f8a7f7b9b43fbddd4ae10b9de9790a5.exe
Size

1.7MB
MD5

5e1a762aee8cdd0024a07b2b4cd776b8
SHA1

24697336c8c02d1c18787b16bb63e71798d27f93
SHA256

4941447d19c770c63e441745710e13205f8a7f7b9b43fbddd4ae10b9de9790a5
SHA512

57f2ca527c275d7215f813ded65dffe4b1b2b6b785ea81517d93c02903eb2d8b8ff0cb8eaba1d7a3bfa6c60880ad035a581b0b0b7d087e63f8203c0ba0163c93
SSDEEP

49152:t6dmvZd5MwGQROZ8WSRaY1teQYre7BZBwnXp:tQ4H5tGQR8Sw0LYretZG

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:

4941447d19c770c63e441745710e13205f8a7f7b9b43fbddd4ae10b9de9790a5.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 4941447d19c770c63e441745710e13205f8a7f7b9b43fbddd4ae10b9de9790a5.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	4941447d19c770c63e441745710e13205f8a7f7b9b43fbddd4ae10b9de9790a5.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:

4941447d19c770c63e441745710e13205f8a7f7b9b43fbddd4ae10b9de9790a5.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	4941447d19c770c63e441745710e13205f8a7f7b9b43fbddd4ae10b9de9790a5.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	4941447d19c770c63e441745710e13205f8a7f7b9b43fbddd4ae10b9de9790a5.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:

4941447d19c770c63e441745710e13205f8a7f7b9b43fbddd4ae10b9de9790a5.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Wine	4941447d19c770c63e441745710e13205f8a7f7b9b43fbddd4ae10b9de9790a5.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

4941447d19c770c63e441745710e13205f8a7f7b9b43fbddd4ae10b9de9790a5.exe

pid process

2232 4941447d19c770c63e441745710e13205f8a7f7b9b43fbddd4ae10b9de9790a5.exe

pid	process
2232	4941447d19c770c63e441745710e13205f8a7f7b9b43fbddd4ae10b9de9790a5.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:

4941447d19c770c63e441745710e13205f8a7f7b9b43fbddd4ae10b9de9790a5.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4941447d19c770c63e441745710e13205f8a7f7b9b43fbddd4ae10b9de9790a5.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

4941447d19c770c63e441745710e13205f8a7f7b9b43fbddd4ae10b9de9790a5.exe

pid process

2232 4941447d19c770c63e441745710e13205f8a7f7b9b43fbddd4ae10b9de9790a5.exe

pid	process
2232	4941447d19c770c63e441745710e13205f8a7f7b9b43fbddd4ae10b9de9790a5.exe

C:\Users\Admin\AppData\Local\Temp\4941447d19c770c63e441745710e13205f8a7f7b9b43fbddd4ae10b9de9790a5.exe
"C:\Users\Admin\AppData\Local\Temp\4941447d19c770c63e441745710e13205f8a7f7b9b43fbddd4ae10b9de9790a5.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:2232

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/2232-0-0x00000000009F0000-0x000000000108A000-memory.dmp

Filesize
6.6MB

Download
memory/2232-1-0x0000000077E20000-0x0000000077E22000-memory.dmp

Filesize
8KB

Download
memory/2232-2-0x00000000009F1000-0x0000000000A08000-memory.dmp

Filesize
92KB

Download
memory/2232-3-0x00000000009F0000-0x000000000108A000-memory.dmp

Filesize
6.6MB

Download
memory/2232-4-0x00000000009F0000-0x000000000108A000-memory.dmp

Filesize
6.6MB

Download