stealc | 4f3f3cebaedafaca661c5852c61b1cc62377805ddb893891c795097cc4d90216

Analysis

max time kernel
16s
max time network
22s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
16-12-2024 11:21

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General

Target

4f3f3cebaedafaca661c5852c61b1cc62377805ddb893891c795097cc4d90216N.exe
Size

1.7MB
MD5

0db86f415beec566f74ae32230607940
SHA1

59ad2e80445397031efa8cb4cf90488ca03e809e
SHA256

4f3f3cebaedafaca661c5852c61b1cc62377805ddb893891c795097cc4d90216
SHA512

b4f1fe2f7805091a7fd6611dede047f35fa403770f6351bf3cba4243a74d4539bd84cb687569b60c7a58b8664f549202b4009c75cc82392a5b16507c7f8dfaf8
SSDEEP

49152:5wOCR5yKSE9XasSCdEFq1/ZSgofTy8unwLS8u7G:0R57DSQ/ZSgoGRnwxu

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__	4f3f3cebaedafaca661c5852c61b1cc62377805ddb893891c795097cc4d90216N.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	4f3f3cebaedafaca661c5852c61b1cc62377805ddb893891c795097cc4d90216N.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	4f3f3cebaedafaca661c5852c61b1cc62377805ddb893891c795097cc4d90216N.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	4f3f3cebaedafaca661c5852c61b1cc62377805ddb893891c795097cc4d90216N.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2780	4f3f3cebaedafaca661c5852c61b1cc62377805ddb893891c795097cc4d90216N.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	4f3f3cebaedafaca661c5852c61b1cc62377805ddb893891c795097cc4d90216N.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2780	4f3f3cebaedafaca661c5852c61b1cc62377805ddb893891c795097cc4d90216N.exe

C:\Users\Admin\AppData\Local\Temp\4f3f3cebaedafaca661c5852c61b1cc62377805ddb893891c795097cc4d90216N.exe
"C:\Users\Admin\AppData\Local\Temp\4f3f3cebaedafaca661c5852c61b1cc62377805ddb893891c795097cc4d90216N.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:2780

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/2780-0-0x0000000000EE0000-0x000000000156E000-memory.dmp

Filesize
6.6MB

Download
memory/2780-1-0x00000000777A0000-0x00000000777A2000-memory.dmp

Filesize
8KB

Download
memory/2780-2-0x0000000000EE1000-0x0000000000EF8000-memory.dmp

Filesize
92KB

Download
memory/2780-3-0x0000000000EE0000-0x000000000156E000-memory.dmp

Filesize
6.6MB

Download
memory/2780-4-0x0000000000EE0000-0x000000000156E000-memory.dmp

Filesize
6.6MB

Download