stealc | db8efd737c60da1233a238e9491161dda941173efafd68b6edf3d0ff1887b4df

Analysis

max time kernel
93s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
27/09/2024, 01:50

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General

Target

db8efd737c60da1233a238e9491161dda941173efafd68b6edf3d0ff1887b4df.exe
Size

1.7MB
MD5

98d7a0bcf93bbe56347ae7c5ed22e943
SHA1

fb5bda9cbbf209da5514b9f733277759c06f3492
SHA256

db8efd737c60da1233a238e9491161dda941173efafd68b6edf3d0ff1887b4df
SHA512

29e4529c72c68918c11319638eb3ac67394fed3a46c07a26c17e29f83f23983d54b4e822b02d28f834695f95d7cd988bf43914f9eeb4ac64b4de5b2ccf1a6ac8
SSDEEP

24576:se2s/oqG+Dp/ZbO+1KqWasjHwnTZ14NMl6d6rjVde1y66TvVy0pU61KXJGc8bVY4:bmqjDvO+1vWyMd6mqvJptMZGc8b

Score

10^/10

stealc save discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

save

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__	db8efd737c60da1233a238e9491161dda941173efafd68b6edf3d0ff1887b4df.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	db8efd737c60da1233a238e9491161dda941173efafd68b6edf3d0ff1887b4df.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	db8efd737c60da1233a238e9491161dda941173efafd68b6edf3d0ff1887b4df.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-1-5-21-1302416131-1437503476-2806442725-1000\Software\Wine	db8efd737c60da1233a238e9491161dda941173efafd68b6edf3d0ff1887b4df.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4136	db8efd737c60da1233a238e9491161dda941173efafd68b6edf3d0ff1887b4df.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	db8efd737c60da1233a238e9491161dda941173efafd68b6edf3d0ff1887b4df.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4136	db8efd737c60da1233a238e9491161dda941173efafd68b6edf3d0ff1887b4df.exe
4136	db8efd737c60da1233a238e9491161dda941173efafd68b6edf3d0ff1887b4df.exe

C:\Users\Admin\AppData\Local\Temp\db8efd737c60da1233a238e9491161dda941173efafd68b6edf3d0ff1887b4df.exe
"C:\Users\Admin\AppData\Local\Temp\db8efd737c60da1233a238e9491161dda941173efafd68b6edf3d0ff1887b4df.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:4136

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/4136-0-0x0000000000A50000-0x00000000010CC000-memory.dmp

Filesize
6.5MB

Download
memory/4136-1-0x0000000077AE4000-0x0000000077AE6000-memory.dmp

Filesize
8KB

Download
memory/4136-2-0x0000000000A51000-0x0000000000A74000-memory.dmp

Filesize
140KB

Download
memory/4136-3-0x0000000000A50000-0x00000000010CC000-memory.dmp

Filesize
6.5MB

Download
memory/4136-4-0x0000000000A50000-0x00000000010CC000-memory.dmp

Filesize
6.5MB

Download