stealc | 708e04b3f2d37c3cb32b2f88962676ba939525b124a757236ea3174b5b2eee74

Analysis

max time kernel
16s
max time network
17s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
22-12-2024 00:38

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General

Target

708e04b3f2d37c3cb32b2f88962676ba939525b124a757236ea3174b5b2eee74N.exe
Size

2.8MB
MD5

37bc9fc38023802a67c6b8902a8bd890
SHA1

a31726802dece6ee4d91dec9eab23b057bd00efe
SHA256

708e04b3f2d37c3cb32b2f88962676ba939525b124a757236ea3174b5b2eee74
SHA512

6443fe14f8e0b75d124c5fd070870bced30f339e4718c7ec2fa875284ef7e0d46945ba17a32517b13f4e814a33cdafeabcd114b579311c20e4b374243bf2fdc5
SSDEEP

49152:Kagm/5gx3bOQpjZpaoiK1Vyz8HoKE8RzulwuY+D:KagmRgxawj6oiKdPZdulwuY+D

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__	708e04b3f2d37c3cb32b2f88962676ba939525b124a757236ea3174b5b2eee74N.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	708e04b3f2d37c3cb32b2f88962676ba939525b124a757236ea3174b5b2eee74N.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	708e04b3f2d37c3cb32b2f88962676ba939525b124a757236ea3174b5b2eee74N.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-1-5-21-1163522206-1469769407-485553996-1000\Software\Wine	708e04b3f2d37c3cb32b2f88962676ba939525b124a757236ea3174b5b2eee74N.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1720	708e04b3f2d37c3cb32b2f88962676ba939525b124a757236ea3174b5b2eee74N.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	708e04b3f2d37c3cb32b2f88962676ba939525b124a757236ea3174b5b2eee74N.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1720	708e04b3f2d37c3cb32b2f88962676ba939525b124a757236ea3174b5b2eee74N.exe

C:\Users\Admin\AppData\Local\Temp\708e04b3f2d37c3cb32b2f88962676ba939525b124a757236ea3174b5b2eee74N.exe
"C:\Users\Admin\AppData\Local\Temp\708e04b3f2d37c3cb32b2f88962676ba939525b124a757236ea3174b5b2eee74N.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:1720

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/1720-0-0x0000000000920000-0x0000000000E1D000-memory.dmp

Filesize
5.0MB

Download
memory/1720-1-0x0000000077120000-0x0000000077122000-memory.dmp

Filesize
8KB

Download
memory/1720-3-0x0000000000920000-0x0000000000E1D000-memory.dmp

Filesize
5.0MB

Download
memory/1720-2-0x0000000000921000-0x0000000000938000-memory.dmp

Filesize
92KB

Download
memory/1720-4-0x0000000000920000-0x0000000000E1D000-memory.dmp

Filesize
5.0MB

Download