stealc | 85549397d088edf81e850908121387e9c30cd24e9ad78770709f8090a0e65023

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
14-12-2024 14:38

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General

Target

85549397d088edf81e850908121387e9c30cd24e9ad78770709f8090a0e65023.exe
Size

1.7MB
MD5

eb412af192fe6a453219dd3b74b30ae4
SHA1

16eee045fa1bdefcdbd4044e8b83127202890c02
SHA256

85549397d088edf81e850908121387e9c30cd24e9ad78770709f8090a0e65023
SHA512

fa3e8ce3fe41e91c04dc4fb69212a16af67aa9b907b887528e14b654de327e782e2bbece10ffbba8a0b3e8ca40dc1f1a6e5564c098562d6582fd8dfa9b2f248d
SSDEEP

49152:qkTNSm+BooGYzbNqkT1HOnE+e1aLQFhy2KX:vRYHNqkR3+GhNKX

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__	85549397d088edf81e850908121387e9c30cd24e9ad78770709f8090a0e65023.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	85549397d088edf81e850908121387e9c30cd24e9ad78770709f8090a0e65023.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	85549397d088edf81e850908121387e9c30cd24e9ad78770709f8090a0e65023.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-1-5-21-3533259084-2542256011-65585152-1000\Software\Wine	85549397d088edf81e850908121387e9c30cd24e9ad78770709f8090a0e65023.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1820	85549397d088edf81e850908121387e9c30cd24e9ad78770709f8090a0e65023.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	85549397d088edf81e850908121387e9c30cd24e9ad78770709f8090a0e65023.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1820	85549397d088edf81e850908121387e9c30cd24e9ad78770709f8090a0e65023.exe

C:\Users\Admin\AppData\Local\Temp\85549397d088edf81e850908121387e9c30cd24e9ad78770709f8090a0e65023.exe
"C:\Users\Admin\AppData\Local\Temp\85549397d088edf81e850908121387e9c30cd24e9ad78770709f8090a0e65023.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:1820

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/1820-0-0x0000000000DC0000-0x0000000001460000-memory.dmp

Filesize
6.6MB

Download
memory/1820-1-0x00000000777E0000-0x00000000777E2000-memory.dmp

Filesize
8KB

Download
memory/1820-2-0x0000000000DC1000-0x0000000000DD8000-memory.dmp

Filesize
92KB

Download
memory/1820-3-0x0000000000DC0000-0x0000000001460000-memory.dmp

Filesize
6.6MB

Download
memory/1820-4-0x0000000000DC0000-0x0000000001460000-memory.dmp

Filesize
6.6MB

Download