stealc | f5622ec8edbadee157c022829ea267ee17ca517e9f306f0712c425024615f972

Analysis

max time kernel
94s
max time network
134s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-11-2024 03:22

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General

Target

f5622ec8edbadee157c022829ea267ee17ca517e9f306f0712c425024615f972.exe
Size

1.7MB
MD5

f82d9cecd341af38b222a4306bc0588a
SHA1

3359c049fe7cdb1867c8e19fb9d4c8ad54432b6f
SHA256

f5622ec8edbadee157c022829ea267ee17ca517e9f306f0712c425024615f972
SHA512

153ffc9b6d8fccbd8fb5cbf493177ecc1e0af5488c09409574ad64b392e66d59fad6fa7c88087ca57f47007aa15db084c7bc8ced81f88391d069fac4fff7eae6
SSDEEP

49152:jFUgC1CbpZKv4iGSpXTDssKnhJ062HGFFhyeOJUIRFops32LF:prRbpDSpDQRhJ06yGF7yrV34

Score

10^/10

stealc mars discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

mars

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

Processes:

f5622ec8edbadee157c022829ea267ee17ca517e9f306f0712c425024615f972.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	f5622ec8edbadee157c022829ea267ee17ca517e9f306f0712c425024615f972.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

Processes:

f5622ec8edbadee157c022829ea267ee17ca517e9f306f0712c425024615f972.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	f5622ec8edbadee157c022829ea267ee17ca517e9f306f0712c425024615f972.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	f5622ec8edbadee157c022829ea267ee17ca517e9f306f0712c425024615f972.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

Processes:

f5622ec8edbadee157c022829ea267ee17ca517e9f306f0712c425024615f972.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Wine	f5622ec8edbadee157c022829ea267ee17ca517e9f306f0712c425024615f972.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

f5622ec8edbadee157c022829ea267ee17ca517e9f306f0712c425024615f972.exe

pid	Process
4056	f5622ec8edbadee157c022829ea267ee17ca517e9f306f0712c425024615f972.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

Processes:

f5622ec8edbadee157c022829ea267ee17ca517e9f306f0712c425024615f972.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f5622ec8edbadee157c022829ea267ee17ca517e9f306f0712c425024615f972.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

f5622ec8edbadee157c022829ea267ee17ca517e9f306f0712c425024615f972.exe

pid	Process
4056	f5622ec8edbadee157c022829ea267ee17ca517e9f306f0712c425024615f972.exe
4056	f5622ec8edbadee157c022829ea267ee17ca517e9f306f0712c425024615f972.exe

C:\Users\Admin\AppData\Local\Temp\f5622ec8edbadee157c022829ea267ee17ca517e9f306f0712c425024615f972.exe
"C:\Users\Admin\AppData\Local\Temp\f5622ec8edbadee157c022829ea267ee17ca517e9f306f0712c425024615f972.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:4056

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/4056-0-0x00000000001C0000-0x000000000085C000-memory.dmp

Filesize
6.6MB

Download
memory/4056-1-0x0000000077124000-0x0000000077126000-memory.dmp

Filesize
8KB

Download
memory/4056-2-0x00000000001C1000-0x00000000001D8000-memory.dmp

Filesize
92KB

Download
memory/4056-3-0x00000000001C0000-0x000000000085C000-memory.dmp

Filesize
6.6MB

Download
memory/4056-4-0x00000000001C0000-0x000000000085C000-memory.dmp

Filesize
6.6MB

Download