stealc | 47d77bb280258462a3d18819b833497475eeb5daf4e47468a26dd5259a70ca6c

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-01-2025 16:16

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General

Target

47d77bb280258462a3d18819b833497475eeb5daf4e47468a26dd5259a70ca6c.exe
Size

1.7MB
MD5

0ada980dd79fa6a2af9e4350e801f5b5
SHA1

73a2486075f997f1ab43a4aa7d0b09481f5c2f69
SHA256

47d77bb280258462a3d18819b833497475eeb5daf4e47468a26dd5259a70ca6c
SHA512

540b96a86bd279d92519fae13bd16eed77ff486ab9e7764d129bade64595677d6b885d5ea53e5882b6f6b67746ffab5d81c17e0eae29b98b0649d83a93932fec
SSDEEP

49152:a+Zmc1vJeVA2Pn7jk5N7ODhLi5dThhZt++:a+/1x5tL7KhU++

Score

10^/10

stealc brat defense_evasion discovery stealer

Malware Config

Extracted

Family

stealc

Botnet

brat

http://185.215.113.206

Attributes

url_path
/c4becf79229cb002.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

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	47d77bb280258462a3d18819b833497475eeb5daf4e47468a26dd5259a70ca6c.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	47d77bb280258462a3d18819b833497475eeb5daf4e47468a26dd5259a70ca6c.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	47d77bb280258462a3d18819b833497475eeb5daf4e47468a26dd5259a70ca6c.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.

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Wine	47d77bb280258462a3d18819b833497475eeb5daf4e47468a26dd5259a70ca6c.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2516	47d77bb280258462a3d18819b833497475eeb5daf4e47468a26dd5259a70ca6c.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	47d77bb280258462a3d18819b833497475eeb5daf4e47468a26dd5259a70ca6c.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2516	47d77bb280258462a3d18819b833497475eeb5daf4e47468a26dd5259a70ca6c.exe

C:\Users\Admin\AppData\Local\Temp\47d77bb280258462a3d18819b833497475eeb5daf4e47468a26dd5259a70ca6c.exe
"C:\Users\Admin\AppData\Local\Temp\47d77bb280258462a3d18819b833497475eeb5daf4e47468a26dd5259a70ca6c.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:2516

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/2516-0-0x0000000000B30000-0x00000000011C2000-memory.dmp

Filesize
6.6MB

Download
memory/2516-1-0x0000000077DB0000-0x0000000077DB2000-memory.dmp

Filesize
8KB

Download
memory/2516-2-0x0000000000B31000-0x0000000000B48000-memory.dmp

Filesize
92KB

Download
memory/2516-3-0x0000000000B30000-0x00000000011C2000-memory.dmp

Filesize
6.6MB

Download
memory/2516-5-0x0000000000B30000-0x00000000011C2000-memory.dmp

Filesize
6.6MB

Download