stealc | 621533611563869b9418b2b7672c49e40e8087447ac58a72666df78cfd03acbb

Analysis

max time kernel
93s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
25/11/2024, 02:29

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General

Target

621533611563869b9418b2b7672c49e40e8087447ac58a72666df78cfd03acbb.exe
Size

1.7MB
MD5

ae9d1a7fda26b4af1dd0cbe643195a42
SHA1

9bc4e5402027dd78e74378e4e2e0565765fbb2c1
SHA256

621533611563869b9418b2b7672c49e40e8087447ac58a72666df78cfd03acbb
SHA512

769feb3b698408b6b47ab1ec98dfe5e43e5b2d0bfff5ba6c87d043159e13cfa94028acec95409aa31e973e8ea0544be95a27909970174327478f1fcadcb44c8e
SSDEEP

49152:jQSUFSZwcbVBaRmjHsHZbMdVEQIPSTEfjlIVUj63TbzWNd:jbvaRHHRMdVDIKOCAwTwd

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	621533611563869b9418b2b7672c49e40e8087447ac58a72666df78cfd03acbb.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	621533611563869b9418b2b7672c49e40e8087447ac58a72666df78cfd03acbb.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	621533611563869b9418b2b7672c49e40e8087447ac58a72666df78cfd03acbb.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-1-5-21-3227495264-2217614367-4027411560-1000\Software\Wine	621533611563869b9418b2b7672c49e40e8087447ac58a72666df78cfd03acbb.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
3468	621533611563869b9418b2b7672c49e40e8087447ac58a72666df78cfd03acbb.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	621533611563869b9418b2b7672c49e40e8087447ac58a72666df78cfd03acbb.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3468	621533611563869b9418b2b7672c49e40e8087447ac58a72666df78cfd03acbb.exe
3468	621533611563869b9418b2b7672c49e40e8087447ac58a72666df78cfd03acbb.exe

C:\Users\Admin\AppData\Local\Temp\621533611563869b9418b2b7672c49e40e8087447ac58a72666df78cfd03acbb.exe
"C:\Users\Admin\AppData\Local\Temp\621533611563869b9418b2b7672c49e40e8087447ac58a72666df78cfd03acbb.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:3468

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/3468-0-0x0000000000B80000-0x0000000001216000-memory.dmp

Filesize
6.6MB

Download
memory/3468-1-0x0000000077354000-0x0000000077356000-memory.dmp

Filesize
8KB

Download
memory/3468-2-0x0000000000B81000-0x0000000000B98000-memory.dmp

Filesize
92KB

Download
memory/3468-3-0x0000000000B80000-0x0000000001216000-memory.dmp

Filesize
6.6MB

Download
memory/3468-4-0x0000000000B80000-0x0000000001216000-memory.dmp

Filesize
6.6MB

Download