stealc | 538f1b2469163b43d505e8d7f15b9618fc25834aa3b2ebe3f452b120120250cd

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02-10-2024 01:16

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General

Target

538f1b2469163b43d505e8d7f15b9618fc25834aa3b2ebe3f452b120120250cd.exe
Size

1.8MB
MD5

ed976a68fbf288f214e53f8ee4734fcc
SHA1

a67a4f8e2e21d8d8721a7eafdb2a13655854e4f1
SHA256

538f1b2469163b43d505e8d7f15b9618fc25834aa3b2ebe3f452b120120250cd
SHA512

163b230505d67ff3f5dae64321591ae143819387475274377e30f6bfdc710d18ebbac3eb14ccc9108c23c662d858769d9eff01f8274fab3af6d44ecc93b2677c
SSDEEP

49152:EMoTEGtgeGzFVokLvwzDdYdvopaLjDX48Yaop2Cy:joTHgeGzFSkzwzDdAom62/

Score

10^/10

stealc doma discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

doma

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__	538f1b2469163b43d505e8d7f15b9618fc25834aa3b2ebe3f452b120120250cd.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	538f1b2469163b43d505e8d7f15b9618fc25834aa3b2ebe3f452b120120250cd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	538f1b2469163b43d505e8d7f15b9618fc25834aa3b2ebe3f452b120120250cd.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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Wine	538f1b2469163b43d505e8d7f15b9618fc25834aa3b2ebe3f452b120120250cd.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1352	538f1b2469163b43d505e8d7f15b9618fc25834aa3b2ebe3f452b120120250cd.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	538f1b2469163b43d505e8d7f15b9618fc25834aa3b2ebe3f452b120120250cd.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1352	538f1b2469163b43d505e8d7f15b9618fc25834aa3b2ebe3f452b120120250cd.exe

C:\Users\Admin\AppData\Local\Temp\538f1b2469163b43d505e8d7f15b9618fc25834aa3b2ebe3f452b120120250cd.exe
"C:\Users\Admin\AppData\Local\Temp\538f1b2469163b43d505e8d7f15b9618fc25834aa3b2ebe3f452b120120250cd.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:1352

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/1352-0-0x0000000000F10000-0x00000000015AE000-memory.dmp

Filesize
6.6MB

Download
memory/1352-1-0x0000000077930000-0x0000000077932000-memory.dmp

Filesize
8KB

Download
memory/1352-2-0x0000000000F11000-0x0000000000F34000-memory.dmp

Filesize
140KB

Download
memory/1352-3-0x0000000000F10000-0x00000000015AE000-memory.dmp

Filesize
6.6MB

Download
memory/1352-4-0x0000000000F10000-0x00000000015AE000-memory.dmp

Filesize
6.6MB

Download