stealc | 74adc4039c75425ad6a2b19b4ab6ac460d9a21f30ae71bb71408b8f530907c9b

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
21/08/2024, 01:46

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General

Target

74adc4039c75425ad6a2b19b4ab6ac460d9a21f30ae71bb71408b8f530907c9b.exe
Size

1.7MB
MD5

046664b366d4d54dc83b70f28b73787d
SHA1

516838902302f05fcd678ceea8346983cecc999c
SHA256

74adc4039c75425ad6a2b19b4ab6ac460d9a21f30ae71bb71408b8f530907c9b
SHA512

3ccf80d7f6ead4e818ee5a2b7c72f5938b3613cb08deeac924a6f7a6f9a70d3d410e282747e1230166265136230d8b8992b0646d11dd926a2ecff364ed399dbc
SSDEEP

24576:bG8sX8ayFIeh23httqXaJQqJGnOyHqyyaYjtQdamYz0eZDYDnCOxoWwkWaSQHUrr:S8sXfyZM8XeJWPKyyZWdamYz0eTBt3

Score

10^/10

stealc nord discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

nord

http://185.215.113.100

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__	74adc4039c75425ad6a2b19b4ab6ac460d9a21f30ae71bb71408b8f530907c9b.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	74adc4039c75425ad6a2b19b4ab6ac460d9a21f30ae71bb71408b8f530907c9b.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	74adc4039c75425ad6a2b19b4ab6ac460d9a21f30ae71bb71408b8f530907c9b.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-1-5-21-3502430532-24693940-2469786940-1000\Software\Wine	74adc4039c75425ad6a2b19b4ab6ac460d9a21f30ae71bb71408b8f530907c9b.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1440	74adc4039c75425ad6a2b19b4ab6ac460d9a21f30ae71bb71408b8f530907c9b.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	74adc4039c75425ad6a2b19b4ab6ac460d9a21f30ae71bb71408b8f530907c9b.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1440	74adc4039c75425ad6a2b19b4ab6ac460d9a21f30ae71bb71408b8f530907c9b.exe

C:\Users\Admin\AppData\Local\Temp\74adc4039c75425ad6a2b19b4ab6ac460d9a21f30ae71bb71408b8f530907c9b.exe
"C:\Users\Admin\AppData\Local\Temp\74adc4039c75425ad6a2b19b4ab6ac460d9a21f30ae71bb71408b8f530907c9b.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:1440

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/1440-0-0x0000000000300000-0x0000000000983000-memory.dmp

Filesize
6.5MB

Download
memory/1440-1-0x0000000077A70000-0x0000000077A72000-memory.dmp

Filesize
8KB

Download
memory/1440-2-0x0000000000301000-0x0000000000315000-memory.dmp

Filesize
80KB

Download
memory/1440-3-0x0000000000300000-0x0000000000983000-memory.dmp

Filesize
6.5MB

Download
memory/1440-4-0x0000000000300000-0x0000000000983000-memory.dmp

Filesize
6.5MB

Download