stealc | 931df5fb2fa246dd9b9199fbe01881c7436e583ba9d00b01efa65307a48a6573

Analysis

max time kernel
14s
max time network
25s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
20/02/2025, 12:56

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General

Target

931df5fb2fa246dd9b9199fbe01881c7436e583ba9d00b01efa65307a48a6573.exe
Size

1.7MB
MD5

d45d46d95218d83e0e5cb914f0a01354
SHA1

24cbb7c82476d687e88278ba1d36a8fb2046926b
SHA256

931df5fb2fa246dd9b9199fbe01881c7436e583ba9d00b01efa65307a48a6573
SHA512

8bd9e0760d654e340b2279addcede946e04155d6d7d24a89860b6dacd9471ad6f1452644f170c71703e7097707b94aa3e65a2787543e67efa6c0e999e99400a5
SSDEEP

49152:zNnUVo60NisRVY098Z/FzDA7q/Os6/SykithwBRuO:JngqiYSFFfA7XXTIRx

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__	931df5fb2fa246dd9b9199fbe01881c7436e583ba9d00b01efa65307a48a6573.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	931df5fb2fa246dd9b9199fbe01881c7436e583ba9d00b01efa65307a48a6573.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	931df5fb2fa246dd9b9199fbe01881c7436e583ba9d00b01efa65307a48a6573.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-1-5-21-3692679935-4019334568-335155002-1000\Software\Wine	931df5fb2fa246dd9b9199fbe01881c7436e583ba9d00b01efa65307a48a6573.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1056	931df5fb2fa246dd9b9199fbe01881c7436e583ba9d00b01efa65307a48a6573.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	931df5fb2fa246dd9b9199fbe01881c7436e583ba9d00b01efa65307a48a6573.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1056	931df5fb2fa246dd9b9199fbe01881c7436e583ba9d00b01efa65307a48a6573.exe

C:\Users\Admin\AppData\Local\Temp\931df5fb2fa246dd9b9199fbe01881c7436e583ba9d00b01efa65307a48a6573.exe
"C:\Users\Admin\AppData\Local\Temp\931df5fb2fa246dd9b9199fbe01881c7436e583ba9d00b01efa65307a48a6573.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:1056

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/1056-0-0x0000000000A00000-0x000000000108E000-memory.dmp

Filesize
6.6MB

Download
memory/1056-1-0x0000000077E80000-0x0000000077E82000-memory.dmp

Filesize
8KB

Download
memory/1056-2-0x0000000000A01000-0x0000000000A18000-memory.dmp

Filesize
92KB

Download
memory/1056-3-0x0000000000A00000-0x000000000108E000-memory.dmp

Filesize
6.6MB

Download
memory/1056-4-0x0000000000A00000-0x000000000108E000-memory.dmp

Filesize
6.6MB

Download
memory/1056-5-0x0000000000A00000-0x000000000108E000-memory.dmp

Filesize
6.6MB

Download
memory/1056-6-0x0000000000A00000-0x000000000108E000-memory.dmp

Filesize
6.6MB

Download
memory/1056-7-0x0000000000A00000-0x000000000108E000-memory.dmp

Filesize
6.6MB

Download