stealc | 61b227734b42abc0b52830af310f124bf668f033aaeec5cf5c58b001261a2ca3

Analysis

max time kernel
93s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
12-12-2024 17:28

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General

Target

61b227734b42abc0b52830af310f124bf668f033aaeec5cf5c58b001261a2ca3.exe
Size

1.7MB
MD5

656562cca191b9d58ce38dd8b98b7879
SHA1

29133dce961cadbfa01da2581dc43cd6b2c2a745
SHA256

61b227734b42abc0b52830af310f124bf668f033aaeec5cf5c58b001261a2ca3
SHA512

e7675dad6a82442ff43347de725fb0d223fc264205951494e35144e9c9ecea77042cc5e25fbc9bc5191897a126adbb6abc88c233f88a067a01efea6a0c10ce03
SSDEEP

49152:gKFRCVSrKGuY4+at/SBQ5dgqgkMu2ZFNONxDvQ+:gKF2Y6ZSi59gttLOl

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__	61b227734b42abc0b52830af310f124bf668f033aaeec5cf5c58b001261a2ca3.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	61b227734b42abc0b52830af310f124bf668f033aaeec5cf5c58b001261a2ca3.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	61b227734b42abc0b52830af310f124bf668f033aaeec5cf5c58b001261a2ca3.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-1-5-21-940901362-3608833189-1915618603-1000\Software\Wine	61b227734b42abc0b52830af310f124bf668f033aaeec5cf5c58b001261a2ca3.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4916	61b227734b42abc0b52830af310f124bf668f033aaeec5cf5c58b001261a2ca3.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	61b227734b42abc0b52830af310f124bf668f033aaeec5cf5c58b001261a2ca3.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4916	61b227734b42abc0b52830af310f124bf668f033aaeec5cf5c58b001261a2ca3.exe
4916	61b227734b42abc0b52830af310f124bf668f033aaeec5cf5c58b001261a2ca3.exe

C:\Users\Admin\AppData\Local\Temp\61b227734b42abc0b52830af310f124bf668f033aaeec5cf5c58b001261a2ca3.exe
"C:\Users\Admin\AppData\Local\Temp\61b227734b42abc0b52830af310f124bf668f033aaeec5cf5c58b001261a2ca3.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:4916

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/4916-0-0x0000000000520000-0x0000000000BBC000-memory.dmp

Filesize
6.6MB

Download
memory/4916-1-0x00000000778E4000-0x00000000778E6000-memory.dmp

Filesize
8KB

Download
memory/4916-2-0x0000000000521000-0x0000000000538000-memory.dmp

Filesize
92KB

Download
memory/4916-3-0x0000000000520000-0x0000000000BBC000-memory.dmp

Filesize
6.6MB

Download
memory/4916-4-0x0000000000520000-0x0000000000BBC000-memory.dmp

Filesize
6.6MB

Download