stealc | af28da43cc9fdb6128f4b9ce7af09d59025010f77e9119bd87c91318df712ab4

Analysis

max time kernel
122s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20250217-en
resource tags

arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
submitted
19/02/2025, 11:09

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General

Target

af28da43cc9fdb6128f4b9ce7af09d59025010f77e9119bd87c91318df712ab4.exe
Size

1.8MB
MD5

c5e4d612c0286f96e6c0a0f34b9889cd
SHA1

76e16697fc7e39eba2d29c695cb29b3a43ebc532
SHA256

af28da43cc9fdb6128f4b9ce7af09d59025010f77e9119bd87c91318df712ab4
SHA512

87346d4b89b6a0ce960aa0003425b4f8790904e52bd0226367b25028e0c989a3dfdc93031d9cae96054b0b85437a78edd50ebe7acd92379387c13de74ffea179
SSDEEP

49152:IanFUNAsYCGi8tLFQrxanXClpJIxc/dTl:IanFZvi8tLluJIKl

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__	af28da43cc9fdb6128f4b9ce7af09d59025010f77e9119bd87c91318df712ab4.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	af28da43cc9fdb6128f4b9ce7af09d59025010f77e9119bd87c91318df712ab4.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	af28da43cc9fdb6128f4b9ce7af09d59025010f77e9119bd87c91318df712ab4.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-1-5-21-1170604239-850860757-3112005715-1000\Software\Wine	af28da43cc9fdb6128f4b9ce7af09d59025010f77e9119bd87c91318df712ab4.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1708	af28da43cc9fdb6128f4b9ce7af09d59025010f77e9119bd87c91318df712ab4.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	af28da43cc9fdb6128f4b9ce7af09d59025010f77e9119bd87c91318df712ab4.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1708	af28da43cc9fdb6128f4b9ce7af09d59025010f77e9119bd87c91318df712ab4.exe
1708	af28da43cc9fdb6128f4b9ce7af09d59025010f77e9119bd87c91318df712ab4.exe

C:\Users\Admin\AppData\Local\Temp\af28da43cc9fdb6128f4b9ce7af09d59025010f77e9119bd87c91318df712ab4.exe
"C:\Users\Admin\AppData\Local\Temp\af28da43cc9fdb6128f4b9ce7af09d59025010f77e9119bd87c91318df712ab4.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:1708

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

Replay Monitor

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Downloads

memory/1708-0-0x00000000008E0000-0x0000000000F90000-memory.dmp

Filesize
6.7MB

Download
memory/1708-1-0x00000000771B4000-0x00000000771B6000-memory.dmp

Filesize
8KB

Download
memory/1708-2-0x00000000008E1000-0x00000000008F8000-memory.dmp

Filesize
92KB

Download
memory/1708-3-0x00000000008E0000-0x0000000000F90000-memory.dmp

Filesize
6.7MB

Download
memory/1708-5-0x00000000008E0000-0x0000000000F90000-memory.dmp

Filesize
6.7MB

Download