stealc | bf0d4dcbc8a820dcca55c7dbb693a28c37e94896d9966feb8f2237d94a6c5587

Analysis

max time kernel
95s
max time network
138s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09-11-2024 03:32

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General

Target

bf0d4dcbc8a820dcca55c7dbb693a28c37e94896d9966feb8f2237d94a6c5587.exe
Size

2.0MB
MD5

aa6a24cab5b1ee9fd8d7e6ce3f03802d
SHA1

1decb32fe294c5b9ed465f6e02a399ad328ad97e
SHA256

bf0d4dcbc8a820dcca55c7dbb693a28c37e94896d9966feb8f2237d94a6c5587
SHA512

cd26fdda4ffed72b35d3354578353738493b77eba55f19ecaded00177b55ba8e9933e696c64b27767ccd823f283ca6a2dcd6a86237577153de04f2d9e3bb80bc
SSDEEP

49152:e/ifjtehloqTVwvaVulTi6EMWTKFvFTez8kUY7CbBf:eMRklvTwaVul7EMWTKXBkgFf

Score

10^/10

stealc tale discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

tale

http://185.215.113.206

Attributes

url_path
/6c4adf523b719729.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	bf0d4dcbc8a820dcca55c7dbb693a28c37e94896d9966feb8f2237d94a6c5587.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	bf0d4dcbc8a820dcca55c7dbb693a28c37e94896d9966feb8f2237d94a6c5587.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	bf0d4dcbc8a820dcca55c7dbb693a28c37e94896d9966feb8f2237d94a6c5587.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-1-5-21-4050598569-1597076380-177084960-1000\Software\Wine	bf0d4dcbc8a820dcca55c7dbb693a28c37e94896d9966feb8f2237d94a6c5587.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1052	bf0d4dcbc8a820dcca55c7dbb693a28c37e94896d9966feb8f2237d94a6c5587.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	bf0d4dcbc8a820dcca55c7dbb693a28c37e94896d9966feb8f2237d94a6c5587.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1052	bf0d4dcbc8a820dcca55c7dbb693a28c37e94896d9966feb8f2237d94a6c5587.exe
1052	bf0d4dcbc8a820dcca55c7dbb693a28c37e94896d9966feb8f2237d94a6c5587.exe

C:\Users\Admin\AppData\Local\Temp\bf0d4dcbc8a820dcca55c7dbb693a28c37e94896d9966feb8f2237d94a6c5587.exe
"C:\Users\Admin\AppData\Local\Temp\bf0d4dcbc8a820dcca55c7dbb693a28c37e94896d9966feb8f2237d94a6c5587.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:1052

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/1052-0-0x0000000000680000-0x0000000000DB4000-memory.dmp

Filesize
7.2MB

Download
memory/1052-1-0x00000000772D4000-0x00000000772D6000-memory.dmp

Filesize
8KB

Download
memory/1052-2-0x0000000000681000-0x00000000006E9000-memory.dmp

Filesize
416KB

Download
memory/1052-3-0x0000000000680000-0x0000000000DB4000-memory.dmp

Filesize
7.2MB

Download
memory/1052-4-0x0000000000680000-0x0000000000DB4000-memory.dmp

Filesize
7.2MB

Download