stealc | 6bfcda923115e6d7c292c625207c3b0ca324c7610150e0c743b279b60e592b6e

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25/11/2024, 02:32

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General

Target

6bfcda923115e6d7c292c625207c3b0ca324c7610150e0c743b279b60e592b6e.exe
Size

1.7MB
MD5

39415437759ea288bb81b2e0dbca0bed
SHA1

9f6228d33c548adc3dbcbaac70eb1de90cab9970
SHA256

6bfcda923115e6d7c292c625207c3b0ca324c7610150e0c743b279b60e592b6e
SHA512

61d83bc03d9564d6e30094a4c20544ee3025b50574c0b431a5b08430aac79478079e701882bd0b450bfe1a546c02999ab9bd2f34e8ef6afb9340410be972428f
SSDEEP

24576:pI9pJEQwooMNV4GSirqAF5Wz2ZUOTj5x+Ew2LWr3ZdlJX8FAQEAX8Tg8MlV3kR:spGooMZSimsWzarwB3ZLh8uQEAX1vo

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__	6bfcda923115e6d7c292c625207c3b0ca324c7610150e0c743b279b60e592b6e.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	6bfcda923115e6d7c292c625207c3b0ca324c7610150e0c743b279b60e592b6e.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	6bfcda923115e6d7c292c625207c3b0ca324c7610150e0c743b279b60e592b6e.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-1-5-21-3533259084-2542256011-65585152-1000\Software\Wine	6bfcda923115e6d7c292c625207c3b0ca324c7610150e0c743b279b60e592b6e.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2352	6bfcda923115e6d7c292c625207c3b0ca324c7610150e0c743b279b60e592b6e.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	6bfcda923115e6d7c292c625207c3b0ca324c7610150e0c743b279b60e592b6e.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2352	6bfcda923115e6d7c292c625207c3b0ca324c7610150e0c743b279b60e592b6e.exe

C:\Users\Admin\AppData\Local\Temp\6bfcda923115e6d7c292c625207c3b0ca324c7610150e0c743b279b60e592b6e.exe
"C:\Users\Admin\AppData\Local\Temp\6bfcda923115e6d7c292c625207c3b0ca324c7610150e0c743b279b60e592b6e.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:2352

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/2352-0-0x0000000000980000-0x0000000001008000-memory.dmp

Filesize
6.5MB

Download
memory/2352-1-0x0000000077410000-0x0000000077412000-memory.dmp

Filesize
8KB

Download
memory/2352-2-0x0000000000981000-0x0000000000998000-memory.dmp

Filesize
92KB

Download
memory/2352-3-0x0000000000980000-0x0000000001008000-memory.dmp

Filesize
6.5MB

Download
memory/2352-4-0x0000000000980000-0x0000000001008000-memory.dmp

Filesize
6.5MB

Download