stealc | 5d88a576e6c8f2b027f871d9853d149db0fefad5a1cb38ac6908139012961637

Analysis

max time kernel
95s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-12-2024 03:11

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General

Target

5d88a576e6c8f2b027f871d9853d149db0fefad5a1cb38ac6908139012961637.exe
Size

1.7MB
MD5

4287e289871bb1b734fc7b2a6e351b1d
SHA1

6d9c7b09945f12e2fe111ef188631f2088a4d417
SHA256

5d88a576e6c8f2b027f871d9853d149db0fefad5a1cb38ac6908139012961637
SHA512

1fba5410aa6e4f77f774f8f65e998b7e82fdfec9187485c6cd780a5410910c143ddb58069aac1874dbf1970b3f2320e9cbb48a736c6015472860dab6b0773903
SSDEEP

24576:JQCa84oh1Sw9kEvVdaUWTOP9hsiwjiqcq9LHxTY/Rrti4R5bVM11A+tatgiDfnn5:gs+EGJTOPLaNxlY/m4RDclYtDSMl1wWF

Score

10^/10

stealc stok discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

stok

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__	5d88a576e6c8f2b027f871d9853d149db0fefad5a1cb38ac6908139012961637.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	5d88a576e6c8f2b027f871d9853d149db0fefad5a1cb38ac6908139012961637.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	5d88a576e6c8f2b027f871d9853d149db0fefad5a1cb38ac6908139012961637.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-1-5-21-3227495264-2217614367-4027411560-1000\Software\Wine	5d88a576e6c8f2b027f871d9853d149db0fefad5a1cb38ac6908139012961637.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4896	5d88a576e6c8f2b027f871d9853d149db0fefad5a1cb38ac6908139012961637.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	5d88a576e6c8f2b027f871d9853d149db0fefad5a1cb38ac6908139012961637.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4896	5d88a576e6c8f2b027f871d9853d149db0fefad5a1cb38ac6908139012961637.exe
4896	5d88a576e6c8f2b027f871d9853d149db0fefad5a1cb38ac6908139012961637.exe

C:\Users\Admin\AppData\Local\Temp\5d88a576e6c8f2b027f871d9853d149db0fefad5a1cb38ac6908139012961637.exe
"C:\Users\Admin\AppData\Local\Temp\5d88a576e6c8f2b027f871d9853d149db0fefad5a1cb38ac6908139012961637.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:4896

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/4896-0-0x0000000000750000-0x0000000000DE6000-memory.dmp

Filesize
6.6MB

Download
memory/4896-1-0x00000000777C4000-0x00000000777C6000-memory.dmp

Filesize
8KB

Download
memory/4896-2-0x0000000000751000-0x0000000000768000-memory.dmp

Filesize
92KB

Download
memory/4896-3-0x0000000000750000-0x0000000000DE6000-memory.dmp

Filesize
6.6MB

Download
memory/4896-4-0x0000000000750000-0x0000000000DE6000-memory.dmp

Filesize
6.6MB

Download