stealc | fbf5d7d7d7fe3e0524593d57816fa386cbd3c4faa2cb629ae8e4d4712752b9cc

Analysis

max time kernel
120s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20250217-en
resource tags

arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
submitted
21/02/2025, 12:07

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General

Target

fbf5d7d7d7fe3e0524593d57816fa386cbd3c4faa2cb629ae8e4d4712752b9cc.exe
Size

1.8MB
MD5

fb389a787e4ececf266bb4398bf09fad
SHA1

a6648557e82802393e9eb4e953575e0869cb9cc9
SHA256

fbf5d7d7d7fe3e0524593d57816fa386cbd3c4faa2cb629ae8e4d4712752b9cc
SHA512

89f92da90df7942e2fbc9dc501de48a94fc89abbd5a2f3900e435e8eee510a6654733cbcec1a1e1520f3ab76a23eb09010afffabfb6d5c61b875d734d50b038c
SSDEEP

49152:b5Jr5X0Qa5Dwc/E1Po0D9tQ7K+wZXUG2wkqQG0ejGz:bDlelwVQmvZkPwkcg

Score

10^/10

stealc reno defense_evasion discovery stealer

Malware Config

Extracted

Family

stealc

Botnet

reno

http://185.215.113.115

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__	fbf5d7d7d7fe3e0524593d57816fa386cbd3c4faa2cb629ae8e4d4712752b9cc.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	fbf5d7d7d7fe3e0524593d57816fa386cbd3c4faa2cb629ae8e4d4712752b9cc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	fbf5d7d7d7fe3e0524593d57816fa386cbd3c4faa2cb629ae8e4d4712752b9cc.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-1-5-21-250031470-1197856012-2659781506-1000\Software\Wine	fbf5d7d7d7fe3e0524593d57816fa386cbd3c4faa2cb629ae8e4d4712752b9cc.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4124	fbf5d7d7d7fe3e0524593d57816fa386cbd3c4faa2cb629ae8e4d4712752b9cc.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	fbf5d7d7d7fe3e0524593d57816fa386cbd3c4faa2cb629ae8e4d4712752b9cc.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4124	fbf5d7d7d7fe3e0524593d57816fa386cbd3c4faa2cb629ae8e4d4712752b9cc.exe
4124	fbf5d7d7d7fe3e0524593d57816fa386cbd3c4faa2cb629ae8e4d4712752b9cc.exe

C:\Users\Admin\AppData\Local\Temp\fbf5d7d7d7fe3e0524593d57816fa386cbd3c4faa2cb629ae8e4d4712752b9cc.exe
"C:\Users\Admin\AppData\Local\Temp\fbf5d7d7d7fe3e0524593d57816fa386cbd3c4faa2cb629ae8e4d4712752b9cc.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:4124

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/4124-0-0x0000000000FA0000-0x000000000164B000-memory.dmp

Filesize
6.7MB

Download
memory/4124-1-0x0000000077304000-0x0000000077306000-memory.dmp

Filesize
8KB

Download
memory/4124-2-0x0000000000FA1000-0x0000000000FB8000-memory.dmp

Filesize
92KB

Download
memory/4124-3-0x0000000000FA0000-0x000000000164B000-memory.dmp

Filesize
6.7MB

Download
memory/4124-4-0x0000000000FA0000-0x000000000164B000-memory.dmp

Filesize
6.7MB

Download