stealc | 7748b1bcb3e80de9058f023a7a490b9bdf9bbdab59b17c3351a84feb21c6056d

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 02:49

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General

Target

7748b1bcb3e80de9058f023a7a490b9bdf9bbdab59b17c3351a84feb21c6056d.exe
Size

1.7MB
MD5

319888df2e3f79f5dd0a3cdbfccddc03
SHA1

0196ee658ff0320a5caca2d3d99d8365aebd2ab5
SHA256

7748b1bcb3e80de9058f023a7a490b9bdf9bbdab59b17c3351a84feb21c6056d
SHA512

37a8116026113102bee0e0dcee9833774fff2372f4ab5dbab210aafc2daed8e961fdaa1458a8c0dec8a5c0561cfeecebd7cc31755f522b2735c8e4389fe0d1ae
SSDEEP

24576:t3zWzM1zlwIyi4Bz61K4b0XVPjoIkv8iYq93dK0vhPIuwX7EtLpPUaoG5aROs:t3SMdCIyjz67Kxl3iThvhPIu1lD/S

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__	7748b1bcb3e80de9058f023a7a490b9bdf9bbdab59b17c3351a84feb21c6056d.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\VideoBiosVersion	7748b1bcb3e80de9058f023a7a490b9bdf9bbdab59b17c3351a84feb21c6056d.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	7748b1bcb3e80de9058f023a7a490b9bdf9bbdab59b17c3351a84feb21c6056d.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-1-5-21-3227495264-2217614367-4027411560-1000\Software\Wine	7748b1bcb3e80de9058f023a7a490b9bdf9bbdab59b17c3351a84feb21c6056d.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1888	7748b1bcb3e80de9058f023a7a490b9bdf9bbdab59b17c3351a84feb21c6056d.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	7748b1bcb3e80de9058f023a7a490b9bdf9bbdab59b17c3351a84feb21c6056d.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1888	7748b1bcb3e80de9058f023a7a490b9bdf9bbdab59b17c3351a84feb21c6056d.exe
1888	7748b1bcb3e80de9058f023a7a490b9bdf9bbdab59b17c3351a84feb21c6056d.exe

C:\Users\Admin\AppData\Local\Temp\7748b1bcb3e80de9058f023a7a490b9bdf9bbdab59b17c3351a84feb21c6056d.exe
"C:\Users\Admin\AppData\Local\Temp\7748b1bcb3e80de9058f023a7a490b9bdf9bbdab59b17c3351a84feb21c6056d.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:1888

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/1888-0-0x00000000000A0000-0x0000000000728000-memory.dmp

Filesize
6.5MB

Download
memory/1888-1-0x00000000778E4000-0x00000000778E6000-memory.dmp

Filesize
8KB

Download
memory/1888-2-0x00000000000A1000-0x00000000000B8000-memory.dmp

Filesize
92KB

Download
memory/1888-3-0x00000000000A0000-0x0000000000728000-memory.dmp

Filesize
6.5MB

Download
memory/1888-4-0x00000000000A0000-0x0000000000728000-memory.dmp

Filesize
6.5MB

Download
memory/1888-5-0x00000000000A0000-0x0000000000728000-memory.dmp

Filesize
6.5MB

Download