stealc | a63c8da0504eb526d7a28d684872a1aca575819f46a0ecef131d30ac2d6da4ed

Resubmissions

07/12/2024, 21:44

241207-1lqdra1jfk 10

07/12/2024, 11:58

241207-n456ps1pf1 10

Analysis

max time kernel
90s
max time network
22s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
07/12/2024, 11:58

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General

Target

file.exe
Size

5.0MB
MD5

2704b8659485a783c81f96440f2f5ca4
SHA1

d8883d8802dd0363cc505cbae99d3c37fa83b283
SHA256

a63c8da0504eb526d7a28d684872a1aca575819f46a0ecef131d30ac2d6da4ed
SHA512

84bb63aeaf561b26b86475f4eedd99b368f697bc760afe9f16557a585cf4e747d6d8b68f0fd27af0883fd6d81386e5304d49bfee4d365820b6c2fce6218d3284
SSDEEP

49152:63T9U3oVHLbwpaN4j7fMljwRMyWrMQFn:ET9goVrbv4j7EpuTAF

Score

10^/10

stealc drum discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

drum

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__	file.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\VideoBiosVersion	file.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	file.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-1-5-21-2703099537-420551529-3771253338-1000\Software\Wine	file.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2216	file.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	file.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2216	file.exe

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.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:2216

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

Replay Monitor

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Downloads

memory/2216-0-0x0000000000D70000-0x000000000127C000-memory.dmp

Filesize
5.0MB

Download
memory/2216-1-0x0000000077200000-0x0000000077202000-memory.dmp

Filesize
8KB

Download
memory/2216-2-0x0000000000D71000-0x0000000000FBA000-memory.dmp

Filesize
2.3MB

Download
memory/2216-3-0x0000000000D70000-0x000000000127C000-memory.dmp

Filesize
5.0MB

Download
memory/2216-5-0x0000000000D70000-0x000000000127C000-memory.dmp

Filesize
5.0MB

Download
memory/2216-6-0x0000000000D71000-0x0000000000FBA000-memory.dmp

Filesize
2.3MB

Download