stealc | 6b27d8d4b491360dbf3bc4bff1eb6e6fd9fbf51164a9f2239c6bf3accf9a7af2

Analysis

max time kernel
119s
max time network
124s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
11-02-2025 15:44

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General

Target

6b27d8d4b491360dbf3bc4bff1eb6e6fd9fbf51164a9f2239c6bf3accf9a7af2.exe
Size

1.7MB
MD5

23b338ac36a9287f65c857b37e3d39fb
SHA1

4fc8f867e2e6d3675d7f1334a7282c962d32d851
SHA256

6b27d8d4b491360dbf3bc4bff1eb6e6fd9fbf51164a9f2239c6bf3accf9a7af2
SHA512

e1790fdd23a51ed01f14ffe2a7a219a26b8d69d435a710f9935af124d431dbae004d3e166575575b8c95a87a7f036d955422e6022360fbd1c59ea04550205ad5
SSDEEP

24576:4COHZPoa5v+XK2pl0omqS2fu8ow+QJvVEH7BMfyZjOwyXkluj7X62CXxeUhKIoRX:yHZV4xEom2fJow9pGtYyVWUluHKFEUh

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__	6b27d8d4b491360dbf3bc4bff1eb6e6fd9fbf51164a9f2239c6bf3accf9a7af2.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	6b27d8d4b491360dbf3bc4bff1eb6e6fd9fbf51164a9f2239c6bf3accf9a7af2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	6b27d8d4b491360dbf3bc4bff1eb6e6fd9fbf51164a9f2239c6bf3accf9a7af2.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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Wine	6b27d8d4b491360dbf3bc4bff1eb6e6fd9fbf51164a9f2239c6bf3accf9a7af2.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1048	6b27d8d4b491360dbf3bc4bff1eb6e6fd9fbf51164a9f2239c6bf3accf9a7af2.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	6b27d8d4b491360dbf3bc4bff1eb6e6fd9fbf51164a9f2239c6bf3accf9a7af2.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1048	6b27d8d4b491360dbf3bc4bff1eb6e6fd9fbf51164a9f2239c6bf3accf9a7af2.exe

C:\Users\Admin\AppData\Local\Temp\6b27d8d4b491360dbf3bc4bff1eb6e6fd9fbf51164a9f2239c6bf3accf9a7af2.exe
"C:\Users\Admin\AppData\Local\Temp\6b27d8d4b491360dbf3bc4bff1eb6e6fd9fbf51164a9f2239c6bf3accf9a7af2.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:1048

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/1048-0-0x0000000000950000-0x0000000000FDC000-memory.dmp

Filesize
6.5MB

Download
memory/1048-1-0x00000000772F0000-0x00000000772F2000-memory.dmp

Filesize
8KB

Download
memory/1048-2-0x0000000000951000-0x0000000000968000-memory.dmp

Filesize
92KB

Download
memory/1048-3-0x0000000000950000-0x0000000000FDC000-memory.dmp

Filesize
6.5MB

Download
memory/1048-4-0x0000000000950000-0x0000000000FDC000-memory.dmp

Filesize
6.5MB

Download