stealc | 512f37203caa529ca6f1ed899476869e30604a3f2835cbc8f0914cfe7ab001f7

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
26-08-2024 01:41

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General

Target

4c840a0355723638725621473ca6d5c98cb9efec4c848b10d57c9ab4883c413b.exe
Size

1.7MB
MD5

9f3505d4d53376c68d28e5c76449d6f9
SHA1

56dc4d4bac3ef0a46b1146a58eccdc773222db0c
SHA256

4c840a0355723638725621473ca6d5c98cb9efec4c848b10d57c9ab4883c413b
SHA512

a447481d76a79f2923a43deccab1e7623310191faa588ca570fe5bd81c24550c17689b11009a9ac06241da8886aaf8bfd10bffce1e2c1641af7d2fd4b9990b2c
SSDEEP

24576:ioET/xymQieSs7Kng1rQDGiFOFWsu8cYoCwqeSIpb213Q+p/gJVAlwiVa77K:ijL8Uikt6QCwqAboV/OEVyK

Score

10^/10

stealc leva discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

leva

http://185.215.113.100

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__	4c840a0355723638725621473ca6d5c98cb9efec4c848b10d57c9ab4883c413b.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	4c840a0355723638725621473ca6d5c98cb9efec4c848b10d57c9ab4883c413b.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	4c840a0355723638725621473ca6d5c98cb9efec4c848b10d57c9ab4883c413b.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	4c840a0355723638725621473ca6d5c98cb9efec4c848b10d57c9ab4883c413b.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4472	4c840a0355723638725621473ca6d5c98cb9efec4c848b10d57c9ab4883c413b.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	4c840a0355723638725621473ca6d5c98cb9efec4c848b10d57c9ab4883c413b.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4472	4c840a0355723638725621473ca6d5c98cb9efec4c848b10d57c9ab4883c413b.exe
4472	4c840a0355723638725621473ca6d5c98cb9efec4c848b10d57c9ab4883c413b.exe

C:\Users\Admin\AppData\Local\Temp\4c840a0355723638725621473ca6d5c98cb9efec4c848b10d57c9ab4883c413b.exe
"C:\Users\Admin\AppData\Local\Temp\4c840a0355723638725621473ca6d5c98cb9efec4c848b10d57c9ab4883c413b.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:4472

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/4472-0-0x0000000000E50000-0x00000000014C1000-memory.dmp

Filesize
6.4MB

Download
memory/4472-1-0x0000000077424000-0x0000000077426000-memory.dmp

Filesize
8KB

Download
memory/4472-2-0x0000000000E51000-0x0000000000E65000-memory.dmp

Filesize
80KB

Download
memory/4472-3-0x0000000000E50000-0x00000000014C1000-memory.dmp

Filesize
6.4MB

Download
memory/4472-4-0x0000000000E50000-0x00000000014C1000-memory.dmp

Filesize
6.4MB

Download