stealc | 8bd7b0662ecb72eb60b3ae68a0534acb4a787263a37a619a48bc7a2186c4415d

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
11-12-2024 18:21

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General

Target

8bd7b0662ecb72eb60b3ae68a0534acb4a787263a37a619a48bc7a2186c4415d.exe
Size

1.7MB
MD5

e814098146a7d5bb6910f684d24ddda7
SHA1

3ac620ff3ae684e4d614ffb27821d8301f973a84
SHA256

8bd7b0662ecb72eb60b3ae68a0534acb4a787263a37a619a48bc7a2186c4415d
SHA512

7d3dced81670b6e318e77057bbad45d5d7d4015f08ba0548e0f52766bf6ec2d874990a2c5003f5c2d48a39801d6c5c5fe26b85cc120b2ab77a7c8f4166588c99
SSDEEP

49152:NC3dgqyRY1d1NYSRu6+dNOpwPSmf9QlPT:4dgNRYX25rSmf2l

Score

10^/10

stealc stok discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

stok

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	8bd7b0662ecb72eb60b3ae68a0534acb4a787263a37a619a48bc7a2186c4415d.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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	8bd7b0662ecb72eb60b3ae68a0534acb4a787263a37a619a48bc7a2186c4415d.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	8bd7b0662ecb72eb60b3ae68a0534acb4a787263a37a619a48bc7a2186c4415d.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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Wine	8bd7b0662ecb72eb60b3ae68a0534acb4a787263a37a619a48bc7a2186c4415d.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2472	8bd7b0662ecb72eb60b3ae68a0534acb4a787263a37a619a48bc7a2186c4415d.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8bd7b0662ecb72eb60b3ae68a0534acb4a787263a37a619a48bc7a2186c4415d.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2472	8bd7b0662ecb72eb60b3ae68a0534acb4a787263a37a619a48bc7a2186c4415d.exe
2472	8bd7b0662ecb72eb60b3ae68a0534acb4a787263a37a619a48bc7a2186c4415d.exe

C:\Users\Admin\AppData\Local\Temp\8bd7b0662ecb72eb60b3ae68a0534acb4a787263a37a619a48bc7a2186c4415d.exe
"C:\Users\Admin\AppData\Local\Temp\8bd7b0662ecb72eb60b3ae68a0534acb4a787263a37a619a48bc7a2186c4415d.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:2472

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/2472-0-0x0000000000CB0000-0x0000000001344000-memory.dmp

Filesize
6.6MB

Download
memory/2472-1-0x0000000077584000-0x0000000077586000-memory.dmp

Filesize
8KB

Download
memory/2472-3-0x0000000000CB0000-0x0000000001344000-memory.dmp

Filesize
6.6MB

Download
memory/2472-2-0x0000000000CB1000-0x0000000000CC8000-memory.dmp

Filesize
92KB

Download
memory/2472-4-0x0000000000CB0000-0x0000000001344000-memory.dmp

Filesize
6.6MB

Download