stealc | 84b2e6cf11972bbf1185a1370463ef3869b3713159bf2f962855a22a1ec02d3a

Analysis

max time kernel
14s
max time network
18s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
21-11-2024 13:11

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

84b2e6cf11972bbf1185a1370463ef3869b3713159bf2f962855a22a1ec02d3a.exe
Size

1.7MB
MD5

fbcbfc1412235ca533582801d3bf384a
SHA1

057024127ed717976cd329ef4b441769e3cdb4a9
SHA256

84b2e6cf11972bbf1185a1370463ef3869b3713159bf2f962855a22a1ec02d3a
SHA512

281cf5d7e995e30c87cd40f6db04cfda3d7789b17802515ab3d680bc8e648ce787f82dd02d5a8720bcc821890b58ae84ae2204405ffe0d3d48db6b3c85792728
SSDEEP

24576:uhl56JlSpDWm4xUsUhK0KnQBwEkydzLxgOjNEQ/FtK9Tk09mOmIt7fsJ1FNBTI2z:Gl59lW/kK0qQBNg4NE+OeW6IZw/o

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:

84b2e6cf11972bbf1185a1370463ef3869b3713159bf2f962855a22a1ec02d3a.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 84b2e6cf11972bbf1185a1370463ef3869b3713159bf2f962855a22a1ec02d3a.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	84b2e6cf11972bbf1185a1370463ef3869b3713159bf2f962855a22a1ec02d3a.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:

84b2e6cf11972bbf1185a1370463ef3869b3713159bf2f962855a22a1ec02d3a.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	84b2e6cf11972bbf1185a1370463ef3869b3713159bf2f962855a22a1ec02d3a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	84b2e6cf11972bbf1185a1370463ef3869b3713159bf2f962855a22a1ec02d3a.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:

84b2e6cf11972bbf1185a1370463ef3869b3713159bf2f962855a22a1ec02d3a.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Wine	84b2e6cf11972bbf1185a1370463ef3869b3713159bf2f962855a22a1ec02d3a.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

84b2e6cf11972bbf1185a1370463ef3869b3713159bf2f962855a22a1ec02d3a.exe

pid process

108 84b2e6cf11972bbf1185a1370463ef3869b3713159bf2f962855a22a1ec02d3a.exe

pid	process
108	84b2e6cf11972bbf1185a1370463ef3869b3713159bf2f962855a22a1ec02d3a.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:

84b2e6cf11972bbf1185a1370463ef3869b3713159bf2f962855a22a1ec02d3a.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	84b2e6cf11972bbf1185a1370463ef3869b3713159bf2f962855a22a1ec02d3a.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

84b2e6cf11972bbf1185a1370463ef3869b3713159bf2f962855a22a1ec02d3a.exe

pid process

108 84b2e6cf11972bbf1185a1370463ef3869b3713159bf2f962855a22a1ec02d3a.exe

pid	process
108	84b2e6cf11972bbf1185a1370463ef3869b3713159bf2f962855a22a1ec02d3a.exe

C:\Users\Admin\AppData\Local\Temp\84b2e6cf11972bbf1185a1370463ef3869b3713159bf2f962855a22a1ec02d3a.exe
"C:\Users\Admin\AppData\Local\Temp\84b2e6cf11972bbf1185a1370463ef3869b3713159bf2f962855a22a1ec02d3a.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:108

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/108-0-0x0000000000AF0000-0x0000000001185000-memory.dmp

Filesize
6.6MB

Download
memory/108-1-0x0000000077BA0000-0x0000000077BA2000-memory.dmp

Filesize
8KB

Download
memory/108-2-0x0000000000AF1000-0x0000000000B08000-memory.dmp

Filesize
92KB

Download
memory/108-3-0x0000000000AF0000-0x0000000001185000-memory.dmp

Filesize
6.6MB

Download
memory/108-5-0x0000000000AF0000-0x0000000001185000-memory.dmp

Filesize
6.6MB

Download