stealc | d1b814f42bd6e1bef04e8fa411c9d03f70ab8fc5456712150796cc09a0ac14b4

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19-11-2024 18:44

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General

Target

d1b814f42bd6e1bef04e8fa411c9d03f70ab8fc5456712150796cc09a0ac14b4.exe
Size

1.7MB
MD5

960d39578d3d49d18bdd39fda720df2e
SHA1

b5c51d4e5ecb04da63952367ad43da2ef354c3f4
SHA256

d1b814f42bd6e1bef04e8fa411c9d03f70ab8fc5456712150796cc09a0ac14b4
SHA512

b2181eb557a46a8e5376d31497d04aecb3dbc979ff4d9fa6c4651ea26bddbe59ed9f04c79f862d525472fdededa5782a358ddcb9d9cfbebb7b47700e19f8f7ab
SSDEEP

49152:ZUq3qa9zj4RO/H/LtUbkMQG7kMHS2vav8NKVnwgwV85I/E8Ic:7a4X7/KbkMQG7nn5hgwyK/EPc

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__	d1b814f42bd6e1bef04e8fa411c9d03f70ab8fc5456712150796cc09a0ac14b4.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	d1b814f42bd6e1bef04e8fa411c9d03f70ab8fc5456712150796cc09a0ac14b4.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	d1b814f42bd6e1bef04e8fa411c9d03f70ab8fc5456712150796cc09a0ac14b4.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-1-5-21-1488793075-819845221-1497111674-1000\Software\Wine	d1b814f42bd6e1bef04e8fa411c9d03f70ab8fc5456712150796cc09a0ac14b4.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2644	d1b814f42bd6e1bef04e8fa411c9d03f70ab8fc5456712150796cc09a0ac14b4.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	d1b814f42bd6e1bef04e8fa411c9d03f70ab8fc5456712150796cc09a0ac14b4.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2644	d1b814f42bd6e1bef04e8fa411c9d03f70ab8fc5456712150796cc09a0ac14b4.exe

C:\Users\Admin\AppData\Local\Temp\d1b814f42bd6e1bef04e8fa411c9d03f70ab8fc5456712150796cc09a0ac14b4.exe
"C:\Users\Admin\AppData\Local\Temp\d1b814f42bd6e1bef04e8fa411c9d03f70ab8fc5456712150796cc09a0ac14b4.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:2644

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

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Downloads

memory/2644-0-0x0000000000830000-0x0000000000EC7000-memory.dmp

Filesize
6.6MB

Download
memory/2644-1-0x00000000774A0000-0x00000000774A2000-memory.dmp

Filesize
8KB

Download
memory/2644-2-0x0000000000831000-0x0000000000848000-memory.dmp

Filesize
92KB

Download
memory/2644-3-0x0000000000830000-0x0000000000EC7000-memory.dmp

Filesize
6.6MB

Download
memory/2644-4-0x0000000000830000-0x0000000000EC7000-memory.dmp

Filesize
6.6MB

Download