stealc | 8a38d1a35a3cf7a0f06e18c8ea0dddafd48cf1560db03cf9dfd86a1cc7f2c1bf

Analysis

max time kernel
93s
max time network
128s
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, 15:52

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General

Target

8a38d1a35a3cf7a0f06e18c8ea0dddafd48cf1560db03cf9dfd86a1cc7f2c1bf.exe
Size

1.7MB
MD5

564c1f328f441903faa8cdc27a98422c
SHA1

954d2746bdcbfd0f68adc3dcccaf25883a18dc08
SHA256

8a38d1a35a3cf7a0f06e18c8ea0dddafd48cf1560db03cf9dfd86a1cc7f2c1bf
SHA512

d0668720f1db09d242ac0e35e464bc2f08d2f026d740ce2b491fdaa940c2df8c2d5aecd75fe9d3c4ac2aba0a548faad423143ace635637784c3767c9dd4b40de
SSDEEP

49152:tt0RvrPROQwcpNLBZCc59IdsKKLdk+VJ:tt8vcQ7pg/dsNLdrD

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__	8a38d1a35a3cf7a0f06e18c8ea0dddafd48cf1560db03cf9dfd86a1cc7f2c1bf.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	8a38d1a35a3cf7a0f06e18c8ea0dddafd48cf1560db03cf9dfd86a1cc7f2c1bf.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	8a38d1a35a3cf7a0f06e18c8ea0dddafd48cf1560db03cf9dfd86a1cc7f2c1bf.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	8a38d1a35a3cf7a0f06e18c8ea0dddafd48cf1560db03cf9dfd86a1cc7f2c1bf.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1992	8a38d1a35a3cf7a0f06e18c8ea0dddafd48cf1560db03cf9dfd86a1cc7f2c1bf.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	8a38d1a35a3cf7a0f06e18c8ea0dddafd48cf1560db03cf9dfd86a1cc7f2c1bf.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1992	8a38d1a35a3cf7a0f06e18c8ea0dddafd48cf1560db03cf9dfd86a1cc7f2c1bf.exe
1992	8a38d1a35a3cf7a0f06e18c8ea0dddafd48cf1560db03cf9dfd86a1cc7f2c1bf.exe

C:\Users\Admin\AppData\Local\Temp\8a38d1a35a3cf7a0f06e18c8ea0dddafd48cf1560db03cf9dfd86a1cc7f2c1bf.exe
"C:\Users\Admin\AppData\Local\Temp\8a38d1a35a3cf7a0f06e18c8ea0dddafd48cf1560db03cf9dfd86a1cc7f2c1bf.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:1992

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/1992-0-0x00000000005A0000-0x0000000000C2B000-memory.dmp

Filesize
6.5MB

Download
memory/1992-1-0x0000000077D14000-0x0000000077D16000-memory.dmp

Filesize
8KB

Download
memory/1992-2-0x00000000005A1000-0x00000000005B8000-memory.dmp

Filesize
92KB

Download
memory/1992-3-0x00000000005A0000-0x0000000000C2B000-memory.dmp

Filesize
6.5MB

Download
memory/1992-4-0x00000000005A0000-0x0000000000C2B000-memory.dmp

Filesize
6.5MB

Download