stealc | 623522149510a53e039a12faddda11b1b5f99be47d138781ce79b181af46532b

Analysis

max time kernel
94s
max time network
133s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20-11-2024 11:07

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General

Target

623522149510a53e039a12faddda11b1b5f99be47d138781ce79b181af46532b.exe
Size

1.7MB
MD5

8397fbb0f072fe7af2024ed1f2405525
SHA1

f355d07ae184fb244125e29afcc8637e12cb0412
SHA256

623522149510a53e039a12faddda11b1b5f99be47d138781ce79b181af46532b
SHA512

f05188b063abb998729976747b7b9c414d09ea0ed5d978319506776c3f5841b0b6ae7282d923fd5f9e09b1e87dcfe31e7bb4df79c3ba73fb1ddd7866fc847040
SSDEEP

49152:cpFAWg/4zXBC3cKxItsXGiTM1FXpgIHjLDD:kjgQzRC3bHGiTM1FZBD

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__	623522149510a53e039a12faddda11b1b5f99be47d138781ce79b181af46532b.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	623522149510a53e039a12faddda11b1b5f99be47d138781ce79b181af46532b.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	623522149510a53e039a12faddda11b1b5f99be47d138781ce79b181af46532b.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-1-5-21-2437139445-1151884604-3026847218-1000\Software\Wine	623522149510a53e039a12faddda11b1b5f99be47d138781ce79b181af46532b.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4324	623522149510a53e039a12faddda11b1b5f99be47d138781ce79b181af46532b.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	623522149510a53e039a12faddda11b1b5f99be47d138781ce79b181af46532b.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4324	623522149510a53e039a12faddda11b1b5f99be47d138781ce79b181af46532b.exe
4324	623522149510a53e039a12faddda11b1b5f99be47d138781ce79b181af46532b.exe

C:\Users\Admin\AppData\Local\Temp\623522149510a53e039a12faddda11b1b5f99be47d138781ce79b181af46532b.exe
"C:\Users\Admin\AppData\Local\Temp\623522149510a53e039a12faddda11b1b5f99be47d138781ce79b181af46532b.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:4324

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/4324-0-0x0000000000580000-0x0000000000C21000-memory.dmp

Filesize
6.6MB

Download
memory/4324-1-0x0000000077A64000-0x0000000077A66000-memory.dmp

Filesize
8KB

Download
memory/4324-2-0x0000000000581000-0x0000000000598000-memory.dmp

Filesize
92KB

Download
memory/4324-3-0x0000000000580000-0x0000000000C21000-memory.dmp

Filesize
6.6MB

Download
memory/4324-4-0x0000000000580000-0x0000000000C21000-memory.dmp

Filesize
6.6MB

Download