stealc | 5ec30548e1131d8bc671f66b9029d2dbd58e880848dad0679f445423249e897c

Analysis

max time kernel
94s
max time network
142s
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 02:31

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General

Target

5ec30548e1131d8bc671f66b9029d2dbd58e880848dad0679f445423249e897c.exe
Size

1.7MB
MD5

cf6ba1380a20d081dc42865c39678dbb
SHA1

3894a0d95656cb2f3f20e1d37b4ffac4d5300c54
SHA256

5ec30548e1131d8bc671f66b9029d2dbd58e880848dad0679f445423249e897c
SHA512

fb8097af9ebdd4c45f687c545ed401b6d1b8309239d9275e7881d3b41c1d883c4947f9127884112eb31d22547944ca3f2492b739b344bf377638fcf3633fb017
SSDEEP

24576:lz2LEp/4eurCeD5CwYtm1KPCM29fnpxkj8YqFki6FkkUS6fmXfD4PZN2+N:lMuQe/tm1TMQfpWjzFf6fmPEVN

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:

5ec30548e1131d8bc671f66b9029d2dbd58e880848dad0679f445423249e897c.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 5ec30548e1131d8bc671f66b9029d2dbd58e880848dad0679f445423249e897c.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	5ec30548e1131d8bc671f66b9029d2dbd58e880848dad0679f445423249e897c.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:

5ec30548e1131d8bc671f66b9029d2dbd58e880848dad0679f445423249e897c.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	5ec30548e1131d8bc671f66b9029d2dbd58e880848dad0679f445423249e897c.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	5ec30548e1131d8bc671f66b9029d2dbd58e880848dad0679f445423249e897c.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:

5ec30548e1131d8bc671f66b9029d2dbd58e880848dad0679f445423249e897c.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Wine	5ec30548e1131d8bc671f66b9029d2dbd58e880848dad0679f445423249e897c.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

5ec30548e1131d8bc671f66b9029d2dbd58e880848dad0679f445423249e897c.exe

pid process

4636 5ec30548e1131d8bc671f66b9029d2dbd58e880848dad0679f445423249e897c.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:

5ec30548e1131d8bc671f66b9029d2dbd58e880848dad0679f445423249e897c.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5ec30548e1131d8bc671f66b9029d2dbd58e880848dad0679f445423249e897c.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

5ec30548e1131d8bc671f66b9029d2dbd58e880848dad0679f445423249e897c.exe

pid	process
4636	5ec30548e1131d8bc671f66b9029d2dbd58e880848dad0679f445423249e897c.exe
4636	5ec30548e1131d8bc671f66b9029d2dbd58e880848dad0679f445423249e897c.exe

C:\Users\Admin\AppData\Local\Temp\5ec30548e1131d8bc671f66b9029d2dbd58e880848dad0679f445423249e897c.exe
"C:\Users\Admin\AppData\Local\Temp\5ec30548e1131d8bc671f66b9029d2dbd58e880848dad0679f445423249e897c.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:4636

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/4636-0-0x0000000000D10000-0x0000000001392000-memory.dmp

Filesize
6.5MB

Download
memory/4636-1-0x0000000077554000-0x0000000077556000-memory.dmp

Filesize
8KB

Download
memory/4636-2-0x0000000000D11000-0x0000000000D28000-memory.dmp

Filesize
92KB

Download
memory/4636-3-0x0000000000D10000-0x0000000001392000-memory.dmp

Filesize
6.5MB

Download
memory/4636-4-0x0000000000D10000-0x0000000001392000-memory.dmp

Filesize
6.5MB

Download