stealc | 73dfa0277855e48b9bf60588c24e9aa358a73875b9f37b76d2d640cc480e13d6

Analysis

max time kernel
93s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
27/01/2025, 03:07

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General

Target

73dfa0277855e48b9bf60588c24e9aa358a73875b9f37b76d2d640cc480e13d6.exe
Size

1.8MB
MD5

99bf1c405b2bd26932060070a856e335
SHA1

51fcc706d07c63acdd8ffc366deeffdcf49780c3
SHA256

73dfa0277855e48b9bf60588c24e9aa358a73875b9f37b76d2d640cc480e13d6
SHA512

c6ab2e32689fd3f7dd7d6881f34194a4bdb64dc60ef799923c0551f6fc58de91b58a3ac6d8361edb385d86af87863e7aea7dd0b26d359af6b1e7b0ad47eca0a6
SSDEEP

24576:DxGGoNvuKiMlkAT5piIa0mcBi5c5wAJm2zJAUmioYm8YUa3cH6edJ24wD+ENWpy:dG/2K7FEBJJgzGFiR9Yt3cHupD+EMp

Score

10^/10

stealc stok defense_evasion discovery 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

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	73dfa0277855e48b9bf60588c24e9aa358a73875b9f37b76d2d640cc480e13d6.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	73dfa0277855e48b9bf60588c24e9aa358a73875b9f37b76d2d640cc480e13d6.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	73dfa0277855e48b9bf60588c24e9aa358a73875b9f37b76d2d640cc480e13d6.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.

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Wine	73dfa0277855e48b9bf60588c24e9aa358a73875b9f37b76d2d640cc480e13d6.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4896	73dfa0277855e48b9bf60588c24e9aa358a73875b9f37b76d2d640cc480e13d6.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	73dfa0277855e48b9bf60588c24e9aa358a73875b9f37b76d2d640cc480e13d6.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4896	73dfa0277855e48b9bf60588c24e9aa358a73875b9f37b76d2d640cc480e13d6.exe
4896	73dfa0277855e48b9bf60588c24e9aa358a73875b9f37b76d2d640cc480e13d6.exe

C:\Users\Admin\AppData\Local\Temp\73dfa0277855e48b9bf60588c24e9aa358a73875b9f37b76d2d640cc480e13d6.exe
"C:\Users\Admin\AppData\Local\Temp\73dfa0277855e48b9bf60588c24e9aa358a73875b9f37b76d2d640cc480e13d6.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:4896

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/4896-0-0x0000000000640000-0x0000000000CE9000-memory.dmp

Filesize
6.7MB

Download
memory/4896-1-0x0000000077024000-0x0000000077026000-memory.dmp

Filesize
8KB

Download
memory/4896-2-0x0000000000641000-0x0000000000658000-memory.dmp

Filesize
92KB

Download
memory/4896-4-0x0000000000640000-0x0000000000CE9000-memory.dmp

Filesize
6.7MB

Download
memory/4896-5-0x0000000000640000-0x0000000000CE9000-memory.dmp

Filesize
6.7MB

Download