stealc | f1b88b7344a6563cd8bbc90b47df4edca9199672ebe8e78a2454232f2571ff2c

Analysis

max time kernel
94s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
09-09-2024 04:53

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General

Target

f1b88b7344a6563cd8bbc90b47df4edca9199672ebe8e78a2454232f2571ff2c.exe
Size

1.7MB
MD5

ea284cba77bf4a2a75ca8dcc81a6020f
SHA1

e148929711d0b8710647a9d7472454cd13b2f48c
SHA256

f1b88b7344a6563cd8bbc90b47df4edca9199672ebe8e78a2454232f2571ff2c
SHA512

21cfb1fd6c7119da72f9290bacdf8c13aec7d7b755d0ad19dbb7d9f28e6388a88d545f8191060f7821e170d82ddb4905fe25db492af87551dc86cb62de90731a
SSDEEP

49152:XyxL5UWSqwoRIGwucvX5DxUNldUWX9wHxo:owgIGwucvjfOW

Score

10^/10

stealc rave discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

rave

http://185.215.113.103

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__	f1b88b7344a6563cd8bbc90b47df4edca9199672ebe8e78a2454232f2571ff2c.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	f1b88b7344a6563cd8bbc90b47df4edca9199672ebe8e78a2454232f2571ff2c.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	f1b88b7344a6563cd8bbc90b47df4edca9199672ebe8e78a2454232f2571ff2c.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-1-5-21-1194130065-3471212556-1656947724-1000\Software\Wine	f1b88b7344a6563cd8bbc90b47df4edca9199672ebe8e78a2454232f2571ff2c.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
828	f1b88b7344a6563cd8bbc90b47df4edca9199672ebe8e78a2454232f2571ff2c.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	f1b88b7344a6563cd8bbc90b47df4edca9199672ebe8e78a2454232f2571ff2c.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
828	f1b88b7344a6563cd8bbc90b47df4edca9199672ebe8e78a2454232f2571ff2c.exe
828	f1b88b7344a6563cd8bbc90b47df4edca9199672ebe8e78a2454232f2571ff2c.exe

C:\Users\Admin\AppData\Local\Temp\f1b88b7344a6563cd8bbc90b47df4edca9199672ebe8e78a2454232f2571ff2c.exe
"C:\Users\Admin\AppData\Local\Temp\f1b88b7344a6563cd8bbc90b47df4edca9199672ebe8e78a2454232f2571ff2c.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:828

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/828-0-0x0000000000A80000-0x00000000010FD000-memory.dmp

Filesize
6.5MB

Download
memory/828-1-0x0000000076F14000-0x0000000076F16000-memory.dmp

Filesize
8KB

Download
memory/828-2-0x0000000000A81000-0x0000000000A95000-memory.dmp

Filesize
80KB

Download
memory/828-3-0x0000000000A80000-0x00000000010FD000-memory.dmp

Filesize
6.5MB

Download
memory/828-4-0x0000000000A80000-0x00000000010FD000-memory.dmp

Filesize
6.5MB

Download