stealc | 5fd680a2b9e52601053d67c8b52d43badb2810262aef68f851d77df0554117ba

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
28-11-2024 15:11

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General

Target

5fd680a2b9e52601053d67c8b52d43badb2810262aef68f851d77df0554117ba.exe
Size

1.7MB
MD5

c4fd760327193292f0ab30230852c637
SHA1

32afde1ee6882643e6008cb3e5ecd3b8dd399b3f
SHA256

5fd680a2b9e52601053d67c8b52d43badb2810262aef68f851d77df0554117ba
SHA512

6e745621fd8c5f93a4b592b5d604cbfa55ff1c50c33386f3fa21f9a1a45c00032668ff816c7b67c0ce62474608ef73be059937136bd74d4ea322a8d64d8cc072
SSDEEP

24576:hSWV0skLQBfNmMGWA7jq6jUMstbkCz8S2M8WNzB76f//fW5HcCzXUrLisQbK:hScgMGWA9UNtIqkWNzl6f/3IHDErL

Score

10^/10

stealc mars discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

mars

http://185.215.113.206

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

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	5fd680a2b9e52601053d67c8b52d43badb2810262aef68f851d77df0554117ba.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	5fd680a2b9e52601053d67c8b52d43badb2810262aef68f851d77df0554117ba.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	5fd680a2b9e52601053d67c8b52d43badb2810262aef68f851d77df0554117ba.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.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Wine	5fd680a2b9e52601053d67c8b52d43badb2810262aef68f851d77df0554117ba.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
3924	5fd680a2b9e52601053d67c8b52d43badb2810262aef68f851d77df0554117ba.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	5fd680a2b9e52601053d67c8b52d43badb2810262aef68f851d77df0554117ba.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3924	5fd680a2b9e52601053d67c8b52d43badb2810262aef68f851d77df0554117ba.exe
3924	5fd680a2b9e52601053d67c8b52d43badb2810262aef68f851d77df0554117ba.exe

C:\Users\Admin\AppData\Local\Temp\5fd680a2b9e52601053d67c8b52d43badb2810262aef68f851d77df0554117ba.exe
"C:\Users\Admin\AppData\Local\Temp\5fd680a2b9e52601053d67c8b52d43badb2810262aef68f851d77df0554117ba.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:3924

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/3924-0-0x0000000000B50000-0x00000000011EF000-memory.dmp

Filesize
6.6MB

Download
memory/3924-1-0x0000000077AF4000-0x0000000077AF6000-memory.dmp

Filesize
8KB

Download
memory/3924-2-0x0000000000B51000-0x0000000000B68000-memory.dmp

Filesize
92KB

Download
memory/3924-3-0x0000000000B50000-0x00000000011EF000-memory.dmp

Filesize
6.6MB

Download
memory/3924-4-0x0000000000B50000-0x00000000011EF000-memory.dmp

Filesize
6.6MB

Download