stealc | 5b039e26817ac3dde3340af44180e943e7823936cb537342e8a818e5d8705908

Analysis

max time kernel
95s
max time network
140s
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 02:29

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General

Target

5b039e26817ac3dde3340af44180e943e7823936cb537342e8a818e5d8705908.exe
Size

1.7MB
MD5

81380b3f4700458353f68405ba69f471
SHA1

2c51c11246200de63ac0121df7fc94545f0aef38
SHA256

5b039e26817ac3dde3340af44180e943e7823936cb537342e8a818e5d8705908
SHA512

a59cd918a59a2aef818e2974579026a1ab344bfe658e23954550b6c2d44df2285d5365cd60d4086c60d4234ed8616546826d9ed66634150f0d4fde8702e0ff3f
SSDEEP

24576:8KiYYsFZEkLMfHBj9SckDSBaCJcHl7XSPCtLP13h65igzXV0v5qrUKzuThUaU3SR:8HYYVk8j9LkDfrnhy7Wv5GBzEhmiDd

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:

5b039e26817ac3dde3340af44180e943e7823936cb537342e8a818e5d8705908.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 5b039e26817ac3dde3340af44180e943e7823936cb537342e8a818e5d8705908.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	5b039e26817ac3dde3340af44180e943e7823936cb537342e8a818e5d8705908.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:

5b039e26817ac3dde3340af44180e943e7823936cb537342e8a818e5d8705908.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	5b039e26817ac3dde3340af44180e943e7823936cb537342e8a818e5d8705908.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	5b039e26817ac3dde3340af44180e943e7823936cb537342e8a818e5d8705908.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:

5b039e26817ac3dde3340af44180e943e7823936cb537342e8a818e5d8705908.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Wine	5b039e26817ac3dde3340af44180e943e7823936cb537342e8a818e5d8705908.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

5b039e26817ac3dde3340af44180e943e7823936cb537342e8a818e5d8705908.exe

pid process

4440 5b039e26817ac3dde3340af44180e943e7823936cb537342e8a818e5d8705908.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:

5b039e26817ac3dde3340af44180e943e7823936cb537342e8a818e5d8705908.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5b039e26817ac3dde3340af44180e943e7823936cb537342e8a818e5d8705908.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

5b039e26817ac3dde3340af44180e943e7823936cb537342e8a818e5d8705908.exe

pid	process
4440	5b039e26817ac3dde3340af44180e943e7823936cb537342e8a818e5d8705908.exe
4440	5b039e26817ac3dde3340af44180e943e7823936cb537342e8a818e5d8705908.exe

C:\Users\Admin\AppData\Local\Temp\5b039e26817ac3dde3340af44180e943e7823936cb537342e8a818e5d8705908.exe
"C:\Users\Admin\AppData\Local\Temp\5b039e26817ac3dde3340af44180e943e7823936cb537342e8a818e5d8705908.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:4440

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/4440-0-0x00000000008D0000-0x0000000000F75000-memory.dmp

Filesize
6.6MB

Download
memory/4440-1-0x0000000077E24000-0x0000000077E26000-memory.dmp

Filesize
8KB

Download
memory/4440-2-0x00000000008D1000-0x00000000008E8000-memory.dmp

Filesize
92KB

Download
memory/4440-3-0x00000000008D0000-0x0000000000F75000-memory.dmp

Filesize
6.6MB

Download
memory/4440-4-0x00000000008D0000-0x0000000000F75000-memory.dmp

Filesize
6.6MB

Download