stealc | b3a3da0ff549b2e4bbbe5c230120617bb6f21d7344a79e28bab2e6cc89e5ca76

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04-11-2024 02:46

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

b3a3da0ff549b2e4bbbe5c230120617bb6f21d7344a79e28bab2e6cc89e5ca76.exe
Size

2.0MB
MD5

b8732b3b75df20d425b551b864275e1e
SHA1

ce159a0b5f49be75ed8da2d37cd4083a6a2564b3
SHA256

b3a3da0ff549b2e4bbbe5c230120617bb6f21d7344a79e28bab2e6cc89e5ca76
SHA512

33adb1b1c8f6b250f04c85cf6492ebee8ee5a4e08563dd672026c953273ab7989a24d74f23f46f778dccd3c4e2f7507763ba6c3ecbdf0fc3370c3ed26b12aed5
SSDEEP

49152:U6mlYrSOHE7zdjR05nORaslb2dBmvxe7UIlaWqE3+vck0Vzw8IEeHy:U6mlYrSOOzdjR0N9bdBmvxe7/l33+vbk

Score

10^/10

stealc tale discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

tale

http://185.215.113.206

Attributes

url_path
/6c4adf523b719729.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__	b3a3da0ff549b2e4bbbe5c230120617bb6f21d7344a79e28bab2e6cc89e5ca76.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	b3a3da0ff549b2e4bbbe5c230120617bb6f21d7344a79e28bab2e6cc89e5ca76.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	b3a3da0ff549b2e4bbbe5c230120617bb6f21d7344a79e28bab2e6cc89e5ca76.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-1-5-21-4050598569-1597076380-177084960-1000\Software\Wine	b3a3da0ff549b2e4bbbe5c230120617bb6f21d7344a79e28bab2e6cc89e5ca76.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2952	b3a3da0ff549b2e4bbbe5c230120617bb6f21d7344a79e28bab2e6cc89e5ca76.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	b3a3da0ff549b2e4bbbe5c230120617bb6f21d7344a79e28bab2e6cc89e5ca76.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2952	b3a3da0ff549b2e4bbbe5c230120617bb6f21d7344a79e28bab2e6cc89e5ca76.exe
2952	b3a3da0ff549b2e4bbbe5c230120617bb6f21d7344a79e28bab2e6cc89e5ca76.exe

C:\Users\Admin\AppData\Local\Temp\b3a3da0ff549b2e4bbbe5c230120617bb6f21d7344a79e28bab2e6cc89e5ca76.exe
"C:\Users\Admin\AppData\Local\Temp\b3a3da0ff549b2e4bbbe5c230120617bb6f21d7344a79e28bab2e6cc89e5ca76.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:2952

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2952-0-0x0000000000BB0000-0x00000000012E0000-memory.dmp

Filesize
7.2MB

Download
memory/2952-1-0x0000000077584000-0x0000000077586000-memory.dmp

Filesize
8KB

Download
memory/2952-2-0x0000000000BB1000-0x0000000000C19000-memory.dmp

Filesize
416KB

Download
memory/2952-3-0x0000000000BB0000-0x00000000012E0000-memory.dmp

Filesize
7.2MB

Download
memory/2952-5-0x0000000000BB0000-0x00000000012E0000-memory.dmp

Filesize
7.2MB

Download