stealc | 91d20ed7e7cb5e93f1a7c51ae70ff4f45bd444b9547f0dfad6dcccec6e7aa8b8

Analysis

max time kernel
97s
max time network
99s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02-10-2024 01:26

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General

Target

91d20ed7e7cb5e93f1a7c51ae70ff4f45bd444b9547f0dfad6dcccec6e7aa8b8.exe
Size

1.8MB
MD5

dcd1d03f386dab945a8b534dac3d7622
SHA1

181b3898125e89809f0a8a113ba76cca0eafe634
SHA256

91d20ed7e7cb5e93f1a7c51ae70ff4f45bd444b9547f0dfad6dcccec6e7aa8b8
SHA512

d42e5ae5cb69e1b26cbe56c3dada59cd03874228f82b66568a4daeddc854a68018f8fd31aa69ca2881042355f7df2d8cb10a3431501e79bc7d2fb5de40a10f4c
SSDEEP

49152:Lpkf41ali1HU/bPs3CcE0VWPj1EFS6svxdZf4l0fnVB:Z1OGHcbkyctSgsZdZfG0fT

Score

10^/10

stealc doma discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

doma

http://185.215.113.37

Attributes

url_path
/e2b1563c6670f193.php

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer 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__	91d20ed7e7cb5e93f1a7c51ae70ff4f45bd444b9547f0dfad6dcccec6e7aa8b8.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	91d20ed7e7cb5e93f1a7c51ae70ff4f45bd444b9547f0dfad6dcccec6e7aa8b8.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	91d20ed7e7cb5e93f1a7c51ae70ff4f45bd444b9547f0dfad6dcccec6e7aa8b8.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-1-5-21-1194130065-3471212556-1656947724-1000\Software\Wine	91d20ed7e7cb5e93f1a7c51ae70ff4f45bd444b9547f0dfad6dcccec6e7aa8b8.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1008	91d20ed7e7cb5e93f1a7c51ae70ff4f45bd444b9547f0dfad6dcccec6e7aa8b8.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	91d20ed7e7cb5e93f1a7c51ae70ff4f45bd444b9547f0dfad6dcccec6e7aa8b8.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1008	91d20ed7e7cb5e93f1a7c51ae70ff4f45bd444b9547f0dfad6dcccec6e7aa8b8.exe
1008	91d20ed7e7cb5e93f1a7c51ae70ff4f45bd444b9547f0dfad6dcccec6e7aa8b8.exe

C:\Users\Admin\AppData\Local\Temp\91d20ed7e7cb5e93f1a7c51ae70ff4f45bd444b9547f0dfad6dcccec6e7aa8b8.exe
"C:\Users\Admin\AppData\Local\Temp\91d20ed7e7cb5e93f1a7c51ae70ff4f45bd444b9547f0dfad6dcccec6e7aa8b8.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:1008

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/1008-0-0x0000000000ED0000-0x0000000001586000-memory.dmp

Filesize
6.7MB

Download
memory/1008-1-0x0000000077084000-0x0000000077086000-memory.dmp

Filesize
8KB

Download
memory/1008-2-0x0000000000ED1000-0x0000000000EF4000-memory.dmp

Filesize
140KB

Download
memory/1008-3-0x0000000000ED0000-0x0000000001586000-memory.dmp

Filesize
6.7MB

Download
memory/1008-4-0x0000000000ED0000-0x0000000001586000-memory.dmp

Filesize
6.7MB

Download