stealc | e66fef29df453dfd67e5db61f4c847d74ad7ace5a9dedc71c45efd5119a038f1

Analysis

max time kernel
93s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10-12-2024 03:42

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General

Target

e66fef29df453dfd67e5db61f4c847d74ad7ace5a9dedc71c45efd5119a038f1.exe
Size

1.7MB
MD5

09d1a1276ff8fbe9dc8703db22ed155d
SHA1

1b6a30d6a9305cb79206b6f20b3329c0d66c54fc
SHA256

e66fef29df453dfd67e5db61f4c847d74ad7ace5a9dedc71c45efd5119a038f1
SHA512

af306ad0f60efe62177b17a8c9b5ea746f5793819e7e8bfec8613b9637e330a240ea4baca2aacc884ced46aba3fe811222f25b4ecb6cf50e9af7214373106428
SSDEEP

24576:6HIi30QzyxTu1YgO9n+LsEmGhlj5l2X87Qql14qjdEOG1bTVyx3KDlxP:wIi30Q+xTwEnimkljrZ1pe/9RV

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__	e66fef29df453dfd67e5db61f4c847d74ad7ace5a9dedc71c45efd5119a038f1.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	e66fef29df453dfd67e5db61f4c847d74ad7ace5a9dedc71c45efd5119a038f1.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	e66fef29df453dfd67e5db61f4c847d74ad7ace5a9dedc71c45efd5119a038f1.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-1-5-21-3442511616-637977696-3186306149-1000\Software\Wine	e66fef29df453dfd67e5db61f4c847d74ad7ace5a9dedc71c45efd5119a038f1.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
3512	e66fef29df453dfd67e5db61f4c847d74ad7ace5a9dedc71c45efd5119a038f1.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	e66fef29df453dfd67e5db61f4c847d74ad7ace5a9dedc71c45efd5119a038f1.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3512	e66fef29df453dfd67e5db61f4c847d74ad7ace5a9dedc71c45efd5119a038f1.exe
3512	e66fef29df453dfd67e5db61f4c847d74ad7ace5a9dedc71c45efd5119a038f1.exe

C:\Users\Admin\AppData\Local\Temp\e66fef29df453dfd67e5db61f4c847d74ad7ace5a9dedc71c45efd5119a038f1.exe
"C:\Users\Admin\AppData\Local\Temp\e66fef29df453dfd67e5db61f4c847d74ad7ace5a9dedc71c45efd5119a038f1.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:3512

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/3512-0-0x0000000000CD0000-0x000000000137A000-memory.dmp

Filesize
6.7MB

Download
memory/3512-1-0x0000000077174000-0x0000000077176000-memory.dmp

Filesize
8KB

Download
memory/3512-2-0x0000000000CD1000-0x0000000000CE8000-memory.dmp

Filesize
92KB

Download
memory/3512-3-0x0000000000CD0000-0x000000000137A000-memory.dmp

Filesize
6.7MB

Download
memory/3512-4-0x0000000000CD0000-0x000000000137A000-memory.dmp

Filesize
6.7MB

Download