stealc | 3f4854377949e7102dfc608b44c34d33a68fff2363c962d5691233ad2ab53b9b

Analysis

max time kernel
95s
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
27-01-2025 04:25

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General

Target

3f4854377949e7102dfc608b44c34d33a68fff2363c962d5691233ad2ab53b9b.exe
Size

1.7MB
MD5

5106666e43cfcab287bd26d3c00ba2e4
SHA1

21548b2866ec6e4634ec39b3a67d7e571543ec2a
SHA256

3f4854377949e7102dfc608b44c34d33a68fff2363c962d5691233ad2ab53b9b
SHA512

2a0ddc9c45324fbcd287111c7d4ded31dc17a8c1fc971e3b35cf8d38f980825caa838d2783b0e76eb9a03e8314ce3d29cf5b2e5dd15fd5bb626e9a802ce1919e
SSDEEP

24576:ppHp6SKqhFCUWbouTXpv6GHwJABuVSEtevLoSPSIJaYeI4Qb77EQTsALDBdI6jB:H2qXCUWbXbDwJAPg4aireuoQNbI0

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__	3f4854377949e7102dfc608b44c34d33a68fff2363c962d5691233ad2ab53b9b.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	3f4854377949e7102dfc608b44c34d33a68fff2363c962d5691233ad2ab53b9b.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	3f4854377949e7102dfc608b44c34d33a68fff2363c962d5691233ad2ab53b9b.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-1-5-21-940901362-3608833189-1915618603-1000\Software\Wine	3f4854377949e7102dfc608b44c34d33a68fff2363c962d5691233ad2ab53b9b.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4844	3f4854377949e7102dfc608b44c34d33a68fff2363c962d5691233ad2ab53b9b.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	3f4854377949e7102dfc608b44c34d33a68fff2363c962d5691233ad2ab53b9b.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4844	3f4854377949e7102dfc608b44c34d33a68fff2363c962d5691233ad2ab53b9b.exe
4844	3f4854377949e7102dfc608b44c34d33a68fff2363c962d5691233ad2ab53b9b.exe

C:\Users\Admin\AppData\Local\Temp\3f4854377949e7102dfc608b44c34d33a68fff2363c962d5691233ad2ab53b9b.exe
"C:\Users\Admin\AppData\Local\Temp\3f4854377949e7102dfc608b44c34d33a68fff2363c962d5691233ad2ab53b9b.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:4844

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/4844-0-0x0000000000FD0000-0x0000000001665000-memory.dmp

Filesize
6.6MB

Download
memory/4844-1-0x0000000077164000-0x0000000077166000-memory.dmp

Filesize
8KB

Download
memory/4844-2-0x0000000000FD1000-0x0000000000FE8000-memory.dmp

Filesize
92KB

Download
memory/4844-4-0x0000000000FD0000-0x0000000001665000-memory.dmp

Filesize
6.6MB

Download
memory/4844-5-0x0000000000FD0000-0x0000000001665000-memory.dmp

Filesize
6.6MB

Download