stealc | feb74e768dc8cc7bf98c20ea8f2f23e5c3ffc8e327a41cd21d96bedf10ae7efe

Analysis

max time kernel
136s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
01/09/2024, 14:06

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General

Target

feb74e768dc8cc7bf98c20ea8f2f23e5c3ffc8e327a41cd21d96bedf10ae7efe.exe
Size

1.7MB
MD5

b0cf5e71ca872709d9445931c2aaad6a
SHA1

9793982f71ccab73d3dcc6ae13e76e537823f1c6
SHA256

feb74e768dc8cc7bf98c20ea8f2f23e5c3ffc8e327a41cd21d96bedf10ae7efe
SHA512

261f63dfcb6458f923cc0a0272a4bf068c83115ee2e838c79cc3055664959abd65413d3bd216b1a47706c39d7bff45d6b1ecf02d2926a65dde2845795d8e58b8
SSDEEP

24576:oWMA+zJ7Cze7EbuKEEqlA0kce1dJOyZUR0m5K1O8Uu/4cBWEbR+wiWua5UYdcziP:l+zZCzMLKeljkceYyaiQ8d3BVgYdq0L

Score

10^/10

stealc leva discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

leva

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__	feb74e768dc8cc7bf98c20ea8f2f23e5c3ffc8e327a41cd21d96bedf10ae7efe.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	feb74e768dc8cc7bf98c20ea8f2f23e5c3ffc8e327a41cd21d96bedf10ae7efe.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	feb74e768dc8cc7bf98c20ea8f2f23e5c3ffc8e327a41cd21d96bedf10ae7efe.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-1-5-21-523280732-2327480845-3730041215-1000\Software\Wine	feb74e768dc8cc7bf98c20ea8f2f23e5c3ffc8e327a41cd21d96bedf10ae7efe.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
3848	feb74e768dc8cc7bf98c20ea8f2f23e5c3ffc8e327a41cd21d96bedf10ae7efe.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	feb74e768dc8cc7bf98c20ea8f2f23e5c3ffc8e327a41cd21d96bedf10ae7efe.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3848	feb74e768dc8cc7bf98c20ea8f2f23e5c3ffc8e327a41cd21d96bedf10ae7efe.exe
3848	feb74e768dc8cc7bf98c20ea8f2f23e5c3ffc8e327a41cd21d96bedf10ae7efe.exe

C:\Users\Admin\AppData\Local\Temp\feb74e768dc8cc7bf98c20ea8f2f23e5c3ffc8e327a41cd21d96bedf10ae7efe.exe
"C:\Users\Admin\AppData\Local\Temp\feb74e768dc8cc7bf98c20ea8f2f23e5c3ffc8e327a41cd21d96bedf10ae7efe.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:3848

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/3848-0-0x0000000000F10000-0x000000000158D000-memory.dmp

Filesize
6.5MB

Download
memory/3848-1-0x0000000077E54000-0x0000000077E56000-memory.dmp

Filesize
8KB

Download
memory/3848-2-0x0000000000F11000-0x0000000000F25000-memory.dmp

Filesize
80KB

Download
memory/3848-3-0x0000000000F10000-0x000000000158D000-memory.dmp

Filesize
6.5MB

Download
memory/3848-5-0x0000000000F10000-0x000000000158D000-memory.dmp

Filesize
6.5MB

Download