stealc | 59d0f4b4643ad0497f1d181024953aff948698a7e749da8cce46f1e86642ee08

Analysis

max time kernel
93s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-11-2024 02:29

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General

Target

59d0f4b4643ad0497f1d181024953aff948698a7e749da8cce46f1e86642ee08.exe
Size

1.7MB
MD5

efbcceeff7fbbe424508e4de00ad3ccd
SHA1

33574ecf95f1ca351c97fa11c439b7679ae56ac6
SHA256

59d0f4b4643ad0497f1d181024953aff948698a7e749da8cce46f1e86642ee08
SHA512

154aad64a9cc25915986190df630b889fe41207d434831ff606f3212994bcac8235763d43c1be4d1bc98f1a712e27f6e06847a38b5c9ddc14780a587b9416e9c
SSDEEP

24576:ENEpFHR2c8uU5PagNqNMLs7G27xKaPuIPAssGEriSBh/3HGfMgVpbC5Au9ykvDqO:Eqd8FNqNMLs7Jz/xEnh/ANC5V9t7hKI

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

Processes:

59d0f4b4643ad0497f1d181024953aff948698a7e749da8cce46f1e86642ee08.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 59d0f4b4643ad0497f1d181024953aff948698a7e749da8cce46f1e86642ee08.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	59d0f4b4643ad0497f1d181024953aff948698a7e749da8cce46f1e86642ee08.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

Processes:

59d0f4b4643ad0497f1d181024953aff948698a7e749da8cce46f1e86642ee08.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	59d0f4b4643ad0497f1d181024953aff948698a7e749da8cce46f1e86642ee08.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	59d0f4b4643ad0497f1d181024953aff948698a7e749da8cce46f1e86642ee08.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

Processes:

59d0f4b4643ad0497f1d181024953aff948698a7e749da8cce46f1e86642ee08.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Wine	59d0f4b4643ad0497f1d181024953aff948698a7e749da8cce46f1e86642ee08.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

59d0f4b4643ad0497f1d181024953aff948698a7e749da8cce46f1e86642ee08.exe

pid process

3420 59d0f4b4643ad0497f1d181024953aff948698a7e749da8cce46f1e86642ee08.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

Processes:

59d0f4b4643ad0497f1d181024953aff948698a7e749da8cce46f1e86642ee08.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	59d0f4b4643ad0497f1d181024953aff948698a7e749da8cce46f1e86642ee08.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

59d0f4b4643ad0497f1d181024953aff948698a7e749da8cce46f1e86642ee08.exe

pid	process
3420	59d0f4b4643ad0497f1d181024953aff948698a7e749da8cce46f1e86642ee08.exe
3420	59d0f4b4643ad0497f1d181024953aff948698a7e749da8cce46f1e86642ee08.exe

C:\Users\Admin\AppData\Local\Temp\59d0f4b4643ad0497f1d181024953aff948698a7e749da8cce46f1e86642ee08.exe
"C:\Users\Admin\AppData\Local\Temp\59d0f4b4643ad0497f1d181024953aff948698a7e749da8cce46f1e86642ee08.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:3420

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/3420-0-0x0000000000160000-0x00000000007F9000-memory.dmp

Filesize
6.6MB

Download
memory/3420-1-0x0000000077124000-0x0000000077126000-memory.dmp

Filesize
8KB

Download
memory/3420-2-0x0000000000161000-0x0000000000178000-memory.dmp

Filesize
92KB

Download
memory/3420-3-0x0000000000160000-0x00000000007F9000-memory.dmp

Filesize
6.6MB

Download
memory/3420-5-0x0000000000160000-0x00000000007F9000-memory.dmp

Filesize
6.6MB

Download