stealc | 7c104ace9d69e62de677d0291308f3aadf1806092012e69ef805eef4aa5ec212

Analysis

max time kernel
149s
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
19-11-2024 01:58

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General

Target

781d3d06701d435632f81208b7b250177dc7225c99fa9858e278044d8bb0291a.exe
Size

1.7MB
MD5

fb7f52e927eb080353dad4ee04ed6928
SHA1

671c3191dbe04a2837d626ef461d2040367a0787
SHA256

781d3d06701d435632f81208b7b250177dc7225c99fa9858e278044d8bb0291a
SHA512

e148446d01347d4fe7dd661255e6b61e8bdf8b0659d3290b656f1aabd1b0fd2875bcd0ce0719479669329fbd899781ebba73f9ebe7ff61625f227620c5af9607
SSDEEP

24576:Uk8ikdzh0PdGFbFzY4PE7H8jeifnC8YVdTBrnAL4MYzYsC1SNlH3i1+MpGOTj6sB:peG0+yC82BrALaVNd3mlDfwVjF

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

Processes:

781d3d06701d435632f81208b7b250177dc7225c99fa9858e278044d8bb0291a.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	781d3d06701d435632f81208b7b250177dc7225c99fa9858e278044d8bb0291a.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

Processes:

781d3d06701d435632f81208b7b250177dc7225c99fa9858e278044d8bb0291a.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	781d3d06701d435632f81208b7b250177dc7225c99fa9858e278044d8bb0291a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	781d3d06701d435632f81208b7b250177dc7225c99fa9858e278044d8bb0291a.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

Processes:

781d3d06701d435632f81208b7b250177dc7225c99fa9858e278044d8bb0291a.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Wine	781d3d06701d435632f81208b7b250177dc7225c99fa9858e278044d8bb0291a.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

781d3d06701d435632f81208b7b250177dc7225c99fa9858e278044d8bb0291a.exe

pid	Process
208	781d3d06701d435632f81208b7b250177dc7225c99fa9858e278044d8bb0291a.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

Processes:

781d3d06701d435632f81208b7b250177dc7225c99fa9858e278044d8bb0291a.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	781d3d06701d435632f81208b7b250177dc7225c99fa9858e278044d8bb0291a.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

781d3d06701d435632f81208b7b250177dc7225c99fa9858e278044d8bb0291a.exe

pid	Process
208	781d3d06701d435632f81208b7b250177dc7225c99fa9858e278044d8bb0291a.exe
208	781d3d06701d435632f81208b7b250177dc7225c99fa9858e278044d8bb0291a.exe

C:\Users\Admin\AppData\Local\Temp\781d3d06701d435632f81208b7b250177dc7225c99fa9858e278044d8bb0291a.exe
"C:\Users\Admin\AppData\Local\Temp\781d3d06701d435632f81208b7b250177dc7225c99fa9858e278044d8bb0291a.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:208

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/208-0-0x0000000000DD0000-0x000000000146E000-memory.dmp

Filesize
6.6MB

Download
memory/208-1-0x0000000077E54000-0x0000000077E56000-memory.dmp

Filesize
8KB

Download
memory/208-2-0x0000000000DD1000-0x0000000000DE8000-memory.dmp

Filesize
92KB

Download
memory/208-3-0x0000000000DD0000-0x000000000146E000-memory.dmp

Filesize
6.6MB

Download
memory/208-4-0x0000000000DD0000-0x000000000146E000-memory.dmp

Filesize
6.6MB

Download