stealc | 8b97f1f8b16974928a158a4b22f22d235d02d139ae8c1d85c44749dd90a8f6d5

Analysis

max time kernel
92s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01/12/2024, 03:47

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General

Target

file.exe
Size

1.7MB
MD5

238de582700a22bec0837d617d0232cd
SHA1

7856466574d2eabc9d8d023abd25f7e3aa48a8f9
SHA256

8b97f1f8b16974928a158a4b22f22d235d02d139ae8c1d85c44749dd90a8f6d5
SHA512

a466f8304620a1b77ee0c99e3ac49c4cac5753678ef2f9e6db42aa514ae19c61557c5e108699282462c3223893621e81b71890dc1112cf4e7b3dc2f45cac24f9
SSDEEP

49152:G4rjwUFI3T+eywILVATg0Qn1N+U6yAbz9tOZIhv:D89+ATVMN0ymBh

Score

10^/10

stealc drum discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

drum

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

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	file.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	file.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	file.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-1-5-21-2437139445-1151884604-3026847218-1000\Software\Wine	file.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
3336	file.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	file.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3336	file.exe
3336	file.exe

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.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:3336

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/3336-0-0x0000000000150000-0x00000000007F0000-memory.dmp

Filesize
6.6MB

Download
memory/3336-1-0x00000000775B4000-0x00000000775B6000-memory.dmp

Filesize
8KB

Download
memory/3336-2-0x0000000000151000-0x0000000000168000-memory.dmp

Filesize
92KB

Download
memory/3336-3-0x0000000000150000-0x00000000007F0000-memory.dmp

Filesize
6.6MB

Download
memory/3336-5-0x0000000000150000-0x00000000007F0000-memory.dmp

Filesize
6.6MB

Download