stealc | fb80d25dd32bb05e9256ace05a960de677c80c5b5f148d49614877dba352b926

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
11-12-2024 03:50

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General

Target

fb80d25dd32bb05e9256ace05a960de677c80c5b5f148d49614877dba352b926.exe
Size

1.7MB
MD5

f2594aa2805079965e15394622d2ccce
SHA1

9ececc6808e161984c062b8c6bd37126431e8c0d
SHA256

fb80d25dd32bb05e9256ace05a960de677c80c5b5f148d49614877dba352b926
SHA512

65af33bd170aa2520e06e458e26592bafbd7e3cef071a101ce08de039f7d6d2b37063f9a974f799c130266c833dfc9668811bac535692beaecf5db0152b7a5b3
SSDEEP

49152:mVA/KzefFtbQP1iLPZsAkxqrE4nB8/iE:saFbyALYqbnu6

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__	fb80d25dd32bb05e9256ace05a960de677c80c5b5f148d49614877dba352b926.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	fb80d25dd32bb05e9256ace05a960de677c80c5b5f148d49614877dba352b926.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	fb80d25dd32bb05e9256ace05a960de677c80c5b5f148d49614877dba352b926.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-1-5-21-4177215427-74451935-3209572229-1000\Software\Wine	fb80d25dd32bb05e9256ace05a960de677c80c5b5f148d49614877dba352b926.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
840	fb80d25dd32bb05e9256ace05a960de677c80c5b5f148d49614877dba352b926.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	fb80d25dd32bb05e9256ace05a960de677c80c5b5f148d49614877dba352b926.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
840	fb80d25dd32bb05e9256ace05a960de677c80c5b5f148d49614877dba352b926.exe

C:\Users\Admin\AppData\Local\Temp\fb80d25dd32bb05e9256ace05a960de677c80c5b5f148d49614877dba352b926.exe
"C:\Users\Admin\AppData\Local\Temp\fb80d25dd32bb05e9256ace05a960de677c80c5b5f148d49614877dba352b926.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:840

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/840-0-0x0000000000CF0000-0x000000000137F000-memory.dmp

Filesize
6.6MB

Download
memory/840-1-0x0000000077B30000-0x0000000077B32000-memory.dmp

Filesize
8KB

Download
memory/840-2-0x0000000000CF1000-0x0000000000D08000-memory.dmp

Filesize
92KB

Download
memory/840-3-0x0000000000CF0000-0x000000000137F000-memory.dmp

Filesize
6.6MB

Download
memory/840-4-0x0000000000CF0000-0x000000000137F000-memory.dmp

Filesize
6.6MB

Download