stealc | 4a5b6524b44724bbd476cdd2aa7ba06276a487f8e800892cca5c8d20a9b59589

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19/09/2024, 01:18

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General

Target

4a5b6524b44724bbd476cdd2aa7ba06276a487f8e800892cca5c8d20a9b59589.exe
Size

2.8MB
MD5

513f440175158163f05b8773e503790e
SHA1

71df9dc9877746fa0843d59e60cdb8f3ca6844fa
SHA256

4a5b6524b44724bbd476cdd2aa7ba06276a487f8e800892cca5c8d20a9b59589
SHA512

933b3ac6f0eb71f9f290839eef76efc488877ce5d8fa1366f2a8890b2a8c66f70850f184fac3b4438c00601dc3d7f9c871af1da669537cc686b34bd8b72c276c
SSDEEP

49152:B+t+JB5RCH34vK+467dnkDbU7wLRmV0a3dGLK:BrJB5RCH3oKb67dnuhRmV0aR

Score

10^/10

stealc rave discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

rave

http://185.215.113.103

Attributes

url_path
/e2b1563c6670f193.php

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer 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__	4a5b6524b44724bbd476cdd2aa7ba06276a487f8e800892cca5c8d20a9b59589.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	4a5b6524b44724bbd476cdd2aa7ba06276a487f8e800892cca5c8d20a9b59589.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	4a5b6524b44724bbd476cdd2aa7ba06276a487f8e800892cca5c8d20a9b59589.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-1-5-21-4177215427-74451935-3209572229-1000\Software\Wine	4a5b6524b44724bbd476cdd2aa7ba06276a487f8e800892cca5c8d20a9b59589.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2384	4a5b6524b44724bbd476cdd2aa7ba06276a487f8e800892cca5c8d20a9b59589.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	4a5b6524b44724bbd476cdd2aa7ba06276a487f8e800892cca5c8d20a9b59589.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2384	4a5b6524b44724bbd476cdd2aa7ba06276a487f8e800892cca5c8d20a9b59589.exe

C:\Users\Admin\AppData\Local\Temp\4a5b6524b44724bbd476cdd2aa7ba06276a487f8e800892cca5c8d20a9b59589.exe
"C:\Users\Admin\AppData\Local\Temp\4a5b6524b44724bbd476cdd2aa7ba06276a487f8e800892cca5c8d20a9b59589.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:2384

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/2384-0-0x0000000000C20000-0x0000000001112000-memory.dmp

Filesize
4.9MB

Download
memory/2384-1-0x0000000077160000-0x0000000077162000-memory.dmp

Filesize
8KB

Download
memory/2384-2-0x0000000000710000-0x0000000000711000-memory.dmp

Filesize
4KB

Download
memory/2384-3-0x0000000000C21000-0x0000000000C35000-memory.dmp

Filesize
80KB

Download
memory/2384-4-0x0000000000C20000-0x0000000001112000-memory.dmp

Filesize
4.9MB

Download