stealc | 420d505f8c86aed008a9dfa888a3acecae32e95bc26a470d7fb756bdcd74a8d1

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
10-12-2024 17:07

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General

Target

420d505f8c86aed008a9dfa888a3acecae32e95bc26a470d7fb756bdcd74a8d1.exe
Size

1.7MB
MD5

48ef533281a49ffec30c76b2a6bc0554
SHA1

3f2c71d635b8835920a841bb98138bb31a5d2e8a
SHA256

420d505f8c86aed008a9dfa888a3acecae32e95bc26a470d7fb756bdcd74a8d1
SHA512

8307a02057a649dbd5137d60c7d4ce7719e1b7ef28c776cf27410621d4b5416e5d1d38246d3529fde7a229439994ca6a3fa7ee90e3c498d84ef764a3994e0a6e
SSDEEP

49152:CmQmmx3A2g1GcuH52yp0fiG3OWCm66GT2uOvHB5:ZQRW1Gc3ZasPe6oO3

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__	420d505f8c86aed008a9dfa888a3acecae32e95bc26a470d7fb756bdcd74a8d1.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	420d505f8c86aed008a9dfa888a3acecae32e95bc26a470d7fb756bdcd74a8d1.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	420d505f8c86aed008a9dfa888a3acecae32e95bc26a470d7fb756bdcd74a8d1.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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Wine	420d505f8c86aed008a9dfa888a3acecae32e95bc26a470d7fb756bdcd74a8d1.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
3052	420d505f8c86aed008a9dfa888a3acecae32e95bc26a470d7fb756bdcd74a8d1.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	420d505f8c86aed008a9dfa888a3acecae32e95bc26a470d7fb756bdcd74a8d1.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
3052	420d505f8c86aed008a9dfa888a3acecae32e95bc26a470d7fb756bdcd74a8d1.exe

C:\Users\Admin\AppData\Local\Temp\420d505f8c86aed008a9dfa888a3acecae32e95bc26a470d7fb756bdcd74a8d1.exe
"C:\Users\Admin\AppData\Local\Temp\420d505f8c86aed008a9dfa888a3acecae32e95bc26a470d7fb756bdcd74a8d1.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:3052

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/3052-0-0x0000000000F00000-0x0000000001594000-memory.dmp

Filesize
6.6MB

Download
memory/3052-1-0x0000000077580000-0x0000000077582000-memory.dmp

Filesize
8KB

Download
memory/3052-2-0x0000000000F01000-0x0000000000F18000-memory.dmp

Filesize
92KB

Download
memory/3052-3-0x0000000000F00000-0x0000000001594000-memory.dmp

Filesize
6.6MB

Download
memory/3052-4-0x0000000000F00000-0x0000000001594000-memory.dmp

Filesize
6.6MB

Download