stealc | 4cda37f0fdd836cfebb3df05dc550fff54eab9f7a9959c083ce50d0f049aa0a0

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
23-11-2024 02:24

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

4cda37f0fdd836cfebb3df05dc550fff54eab9f7a9959c083ce50d0f049aa0a0.exe
Size

1.7MB
MD5

6edefc0c895756e5e929668b5f804c1f
SHA1

37cc66db57185d2dd9827f2a5670fe527592d5d2
SHA256

4cda37f0fdd836cfebb3df05dc550fff54eab9f7a9959c083ce50d0f049aa0a0
SHA512

5f34e6de56f5d86d59ccbb966b1dbff64ef8b2a759bc9cfbadde40e05d6c2924940a6c63329f633d9464ac8ae35dc9ada419ad3436dc787a2b1bfbe7c120b13c
SSDEEP

49152:YsK+ovd70fKBOtE8bf8W7yVzlEBikSRZh+Kop1UemI/eh:Y4kMoOtE8IWMiikSjhfsenieh

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:

4cda37f0fdd836cfebb3df05dc550fff54eab9f7a9959c083ce50d0f049aa0a0.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	4cda37f0fdd836cfebb3df05dc550fff54eab9f7a9959c083ce50d0f049aa0a0.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:

4cda37f0fdd836cfebb3df05dc550fff54eab9f7a9959c083ce50d0f049aa0a0.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	4cda37f0fdd836cfebb3df05dc550fff54eab9f7a9959c083ce50d0f049aa0a0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	4cda37f0fdd836cfebb3df05dc550fff54eab9f7a9959c083ce50d0f049aa0a0.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:

4cda37f0fdd836cfebb3df05dc550fff54eab9f7a9959c083ce50d0f049aa0a0.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Wine	4cda37f0fdd836cfebb3df05dc550fff54eab9f7a9959c083ce50d0f049aa0a0.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

4cda37f0fdd836cfebb3df05dc550fff54eab9f7a9959c083ce50d0f049aa0a0.exe

pid	Process
3048	4cda37f0fdd836cfebb3df05dc550fff54eab9f7a9959c083ce50d0f049aa0a0.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:

4cda37f0fdd836cfebb3df05dc550fff54eab9f7a9959c083ce50d0f049aa0a0.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4cda37f0fdd836cfebb3df05dc550fff54eab9f7a9959c083ce50d0f049aa0a0.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

4cda37f0fdd836cfebb3df05dc550fff54eab9f7a9959c083ce50d0f049aa0a0.exe

pid	Process
3048	4cda37f0fdd836cfebb3df05dc550fff54eab9f7a9959c083ce50d0f049aa0a0.exe

C:\Users\Admin\AppData\Local\Temp\4cda37f0fdd836cfebb3df05dc550fff54eab9f7a9959c083ce50d0f049aa0a0.exe
"C:\Users\Admin\AppData\Local\Temp\4cda37f0fdd836cfebb3df05dc550fff54eab9f7a9959c083ce50d0f049aa0a0.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:3048

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/3048-0-0x0000000000C80000-0x0000000001304000-memory.dmp

Filesize
6.5MB

Download
memory/3048-1-0x0000000077660000-0x0000000077662000-memory.dmp

Filesize
8KB

Download
memory/3048-2-0x0000000000C81000-0x0000000000C98000-memory.dmp

Filesize
92KB

Download
memory/3048-3-0x0000000000C80000-0x0000000001304000-memory.dmp

Filesize
6.5MB

Download
memory/3048-4-0x0000000000C80000-0x0000000001304000-memory.dmp

Filesize
6.5MB

Download