stealc | 4fd880095542555153305b76ed5ddfdd29ff801a2c89719b9b78a7b1f276de3b

Analysis

max time kernel
93s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
04/10/2024, 04:01

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General

Target

4fd880095542555153305b76ed5ddfdd29ff801a2c89719b9b78a7b1f276de3bN.exe
Size

1.7MB
MD5

9077f656d66fa170557ad8a412431190
SHA1

21173d152c1b538f89e90a9cf5d3183a3351da03
SHA256

4fd880095542555153305b76ed5ddfdd29ff801a2c89719b9b78a7b1f276de3b
SHA512

77816a1f08b6ba60ee8bd9727c3942f23190649855e77edf5be2cc6c9f5f5e67ee3f049edaf57d28dc77373aef989b285fe3bead3becefceea81748d2da0ec08
SSDEEP

24576:YbyaUjJnfIdC0Zj6pnGWjzM4REjvtwgTMy828CDQCcGejYjkDyrvZXmMBq:JaUjBZ09B4REbtpTXzQcpFFBq

Score

10^/10

stealc save discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

save

http://185.215.113.37

Attributes

url_path
/e2b1563c6670f193.php

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer 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__	4fd880095542555153305b76ed5ddfdd29ff801a2c89719b9b78a7b1f276de3bN.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	4fd880095542555153305b76ed5ddfdd29ff801a2c89719b9b78a7b1f276de3bN.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	4fd880095542555153305b76ed5ddfdd29ff801a2c89719b9b78a7b1f276de3bN.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-1-5-21-945322488-2060912225-3527527000-1000\Software\Wine	4fd880095542555153305b76ed5ddfdd29ff801a2c89719b9b78a7b1f276de3bN.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4996	4fd880095542555153305b76ed5ddfdd29ff801a2c89719b9b78a7b1f276de3bN.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	4fd880095542555153305b76ed5ddfdd29ff801a2c89719b9b78a7b1f276de3bN.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4996	4fd880095542555153305b76ed5ddfdd29ff801a2c89719b9b78a7b1f276de3bN.exe
4996	4fd880095542555153305b76ed5ddfdd29ff801a2c89719b9b78a7b1f276de3bN.exe

C:\Users\Admin\AppData\Local\Temp\4fd880095542555153305b76ed5ddfdd29ff801a2c89719b9b78a7b1f276de3bN.exe
"C:\Users\Admin\AppData\Local\Temp\4fd880095542555153305b76ed5ddfdd29ff801a2c89719b9b78a7b1f276de3bN.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:4996

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/4996-0-0x0000000000380000-0x0000000000A15000-memory.dmp

Filesize
6.6MB

Download
memory/4996-1-0x0000000077224000-0x0000000077226000-memory.dmp

Filesize
8KB

Download
memory/4996-2-0x0000000000381000-0x00000000003A4000-memory.dmp

Filesize
140KB

Download
memory/4996-3-0x0000000000380000-0x0000000000A15000-memory.dmp

Filesize
6.6MB

Download
memory/4996-4-0x0000000000380000-0x0000000000A15000-memory.dmp

Filesize
6.6MB

Download