stealc | 2851fd0eb5221b210bc24e9794981908bd94b8f62598260c4be67016a1897585

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
14-12-2024 03:02

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General

Target

2851fd0eb5221b210bc24e9794981908bd94b8f62598260c4be67016a1897585.exe
Size

1.7MB
MD5

36b94e80a119545a12e8a43541596def
SHA1

5d20b016e17342c1ca350d321bb5c0fa45948387
SHA256

2851fd0eb5221b210bc24e9794981908bd94b8f62598260c4be67016a1897585
SHA512

c62c441c2479cc5ff63362d98cf54123c69f029655898ef97fe05158b8a10dc259e4bb08ea305b02ceba72280a4a90a0de1806caa5bb38f8739a237246319b50
SSDEEP

49152:gVvdr4FloEAsFXSQU/sUBK+aBLk4crBqWKdaB7qI:IvdrwloYXSQUJK+VdBqWwf

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__	2851fd0eb5221b210bc24e9794981908bd94b8f62598260c4be67016a1897585.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	2851fd0eb5221b210bc24e9794981908bd94b8f62598260c4be67016a1897585.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	2851fd0eb5221b210bc24e9794981908bd94b8f62598260c4be67016a1897585.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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Wine	2851fd0eb5221b210bc24e9794981908bd94b8f62598260c4be67016a1897585.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
548	2851fd0eb5221b210bc24e9794981908bd94b8f62598260c4be67016a1897585.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	2851fd0eb5221b210bc24e9794981908bd94b8f62598260c4be67016a1897585.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
548	2851fd0eb5221b210bc24e9794981908bd94b8f62598260c4be67016a1897585.exe

C:\Users\Admin\AppData\Local\Temp\2851fd0eb5221b210bc24e9794981908bd94b8f62598260c4be67016a1897585.exe
"C:\Users\Admin\AppData\Local\Temp\2851fd0eb5221b210bc24e9794981908bd94b8f62598260c4be67016a1897585.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:548

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/548-0-0x0000000000260000-0x00000000008F3000-memory.dmp

Filesize
6.6MB

Download
memory/548-1-0x00000000779B0000-0x00000000779B2000-memory.dmp

Filesize
8KB

Download
memory/548-2-0x0000000000261000-0x0000000000278000-memory.dmp

Filesize
92KB

Download
memory/548-3-0x0000000000260000-0x00000000008F3000-memory.dmp

Filesize
6.6MB

Download
memory/548-4-0x0000000000260000-0x00000000008F3000-memory.dmp

Filesize
6.6MB

Download