stealc | 327b96e7de0c91b4799d730b5c18641fe694ab2e367f1a1d7665dbca7e37aba9

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24/11/2024, 09:59

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General

Target

HZY10_file.exe
Size

1.7MB
MD5

0e05441bffbe8e424ed49ccd5af1ce65
SHA1

a9d995171095a1aa14f4f13bc6063f339aaac768
SHA256

327b96e7de0c91b4799d730b5c18641fe694ab2e367f1a1d7665dbca7e37aba9
SHA512

ef22c5679124e5fa84816781f595b13212734f840ce72e50f46226e3ccb317da56db3085441cc799c548994155dc374a6533d32f979e5d4364a6e2ab21e5ae95
SSDEEP

24576:xs4Zsal7DkIKq9GGepHGwToQ7wtRGsTEjhWI+pjoFsMH9tTBIWW7xXp2AJ9vU:GQV9GpHGwTyGsYjhe6FF9UH2Aj

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__	HZY10_file.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	HZY10_file.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	HZY10_file.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-1-5-21-3350944739-639801879-157714471-1000\Software\Wine	HZY10_file.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
452	HZY10_file.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	HZY10_file.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
452	HZY10_file.exe
452	HZY10_file.exe

C:\Users\Admin\AppData\Local\Temp\HZY10_file.exe
"C:\Users\Admin\AppData\Local\Temp\HZY10_file.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:452

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/452-0-0x0000000000280000-0x00000000008FC000-memory.dmp

Filesize
6.5MB

Download
memory/452-1-0x0000000077494000-0x0000000077496000-memory.dmp

Filesize
8KB

Download
memory/452-2-0x0000000000281000-0x0000000000298000-memory.dmp

Filesize
92KB

Download
memory/452-3-0x0000000000280000-0x00000000008FC000-memory.dmp

Filesize
6.5MB

Download
memory/452-5-0x0000000000280000-0x00000000008FC000-memory.dmp

Filesize
6.5MB

Download