stealc | 38a8423c2a8b348d00aa329fa589d63b52243f3a88b70e26d54b67f5e412408a

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
14-12-2024 03:10

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General

Target

38a8423c2a8b348d00aa329fa589d63b52243f3a88b70e26d54b67f5e412408a.exe
Size

1.8MB
MD5

ff5904b78189f7d3d05990abe08a6574
SHA1

f0188fd5eafe9268e34dc1a5162049704a70842e
SHA256

38a8423c2a8b348d00aa329fa589d63b52243f3a88b70e26d54b67f5e412408a
SHA512

e71d679fd3164cc8dd36e1d8b54a5ed7df3a6500d4ce29e48390ca30d9f17a5827b3288416f432afcd08283ec3d3333d355d7b3522da3c1ef11a3eec1d4cbc5e
SSDEEP

49152:a3O68YdTskyseUJVH13DH2F+v73tJgy1dyB:b8TsRUHH13DHVztJT1d

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__	38a8423c2a8b348d00aa329fa589d63b52243f3a88b70e26d54b67f5e412408a.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	38a8423c2a8b348d00aa329fa589d63b52243f3a88b70e26d54b67f5e412408a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	38a8423c2a8b348d00aa329fa589d63b52243f3a88b70e26d54b67f5e412408a.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-1-5-21-1488793075-819845221-1497111674-1000\Software\Wine	38a8423c2a8b348d00aa329fa589d63b52243f3a88b70e26d54b67f5e412408a.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2908	38a8423c2a8b348d00aa329fa589d63b52243f3a88b70e26d54b67f5e412408a.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	38a8423c2a8b348d00aa329fa589d63b52243f3a88b70e26d54b67f5e412408a.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2908	38a8423c2a8b348d00aa329fa589d63b52243f3a88b70e26d54b67f5e412408a.exe

C:\Users\Admin\AppData\Local\Temp\38a8423c2a8b348d00aa329fa589d63b52243f3a88b70e26d54b67f5e412408a.exe
"C:\Users\Admin\AppData\Local\Temp\38a8423c2a8b348d00aa329fa589d63b52243f3a88b70e26d54b67f5e412408a.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:2908

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/2908-0-0x00000000001E0000-0x000000000088D000-memory.dmp

Filesize
6.7MB

Download
memory/2908-1-0x0000000077070000-0x0000000077072000-memory.dmp

Filesize
8KB

Download
memory/2908-2-0x00000000001E1000-0x00000000001F8000-memory.dmp

Filesize
92KB

Download
memory/2908-3-0x00000000001E0000-0x000000000088D000-memory.dmp

Filesize
6.7MB

Download
memory/2908-4-0x00000000001E0000-0x000000000088D000-memory.dmp

Filesize
6.7MB

Download