stealc | a693827d725fbe45e3b42813c281f9e2390af7cb21e06a6d8058923917104efd

Analysis

max time kernel
92s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
28-09-2024 01:41

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General

Target

a693827d725fbe45e3b42813c281f9e2390af7cb21e06a6d8058923917104efd.exe
Size

1.8MB
MD5

3fba342adc9a795c9c5f64b00ce01b74
SHA1

14378e009a4f05fe71df1600dd975d80201ec994
SHA256

a693827d725fbe45e3b42813c281f9e2390af7cb21e06a6d8058923917104efd
SHA512

2729e5ad7763677526d0088abd74406fced6ee7caec5c8774ded57a7528f413c62801ee59030b69cf55aa30b2644d481ebf0af117e9b7e7a36f961bf8c414e93
SSDEEP

24576:K8Ddwv5HafrA7siBwe6uiRkf9tefcy3v0tD4bAXnd7TTv2Z+FNVhrz/TlUyz0jFp:K/FaEoiBXj1G3cZ4C2Y1hrllz0yqhSK

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__	a693827d725fbe45e3b42813c281f9e2390af7cb21e06a6d8058923917104efd.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	a693827d725fbe45e3b42813c281f9e2390af7cb21e06a6d8058923917104efd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	a693827d725fbe45e3b42813c281f9e2390af7cb21e06a6d8058923917104efd.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-1-5-21-2392887640-1187051047-2909758433-1000\Software\Wine	a693827d725fbe45e3b42813c281f9e2390af7cb21e06a6d8058923917104efd.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1304	a693827d725fbe45e3b42813c281f9e2390af7cb21e06a6d8058923917104efd.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	a693827d725fbe45e3b42813c281f9e2390af7cb21e06a6d8058923917104efd.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1304	a693827d725fbe45e3b42813c281f9e2390af7cb21e06a6d8058923917104efd.exe
1304	a693827d725fbe45e3b42813c281f9e2390af7cb21e06a6d8058923917104efd.exe

C:\Users\Admin\AppData\Local\Temp\a693827d725fbe45e3b42813c281f9e2390af7cb21e06a6d8058923917104efd.exe
"C:\Users\Admin\AppData\Local\Temp\a693827d725fbe45e3b42813c281f9e2390af7cb21e06a6d8058923917104efd.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:1304

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/1304-0-0x0000000000D00000-0x00000000013B1000-memory.dmp

Filesize
6.7MB

Download
memory/1304-1-0x0000000077BE4000-0x0000000077BE6000-memory.dmp

Filesize
8KB

Download
memory/1304-2-0x0000000000D01000-0x0000000000D24000-memory.dmp

Filesize
140KB

Download
memory/1304-3-0x0000000000D00000-0x00000000013B1000-memory.dmp

Filesize
6.7MB

Download
memory/1304-4-0x0000000000D00000-0x00000000013B1000-memory.dmp

Filesize
6.7MB

Download