stealc | 4596bafc0efc36a8f3ec2574dba1e8ae82e5b6051a2b5cce1605057a20855072

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-11-2024 02:21

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General

Target

4596bafc0efc36a8f3ec2574dba1e8ae82e5b6051a2b5cce1605057a20855072.exe
Size

1.7MB
MD5

215acb5ad199adeadc4c630b59f09d17
SHA1

76609d0d3867fa6d84da0958b5c1a954e8643f49
SHA256

4596bafc0efc36a8f3ec2574dba1e8ae82e5b6051a2b5cce1605057a20855072
SHA512

358b95a6dc92baed9822c95f23fb13196f712ab4c92587a0b13feb35649ee09ecf63b01218cdb436542e0893a824c2b09d61cd1670b879d23fd08c2ce247a850
SSDEEP

49152:ix2ytIT3b5pKzATXNqChzHkgcooX7hXyM:i2T3NpeATXdJHkrpC

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:

4596bafc0efc36a8f3ec2574dba1e8ae82e5b6051a2b5cce1605057a20855072.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 4596bafc0efc36a8f3ec2574dba1e8ae82e5b6051a2b5cce1605057a20855072.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	4596bafc0efc36a8f3ec2574dba1e8ae82e5b6051a2b5cce1605057a20855072.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:

4596bafc0efc36a8f3ec2574dba1e8ae82e5b6051a2b5cce1605057a20855072.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	4596bafc0efc36a8f3ec2574dba1e8ae82e5b6051a2b5cce1605057a20855072.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	4596bafc0efc36a8f3ec2574dba1e8ae82e5b6051a2b5cce1605057a20855072.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:

4596bafc0efc36a8f3ec2574dba1e8ae82e5b6051a2b5cce1605057a20855072.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Wine	4596bafc0efc36a8f3ec2574dba1e8ae82e5b6051a2b5cce1605057a20855072.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

4596bafc0efc36a8f3ec2574dba1e8ae82e5b6051a2b5cce1605057a20855072.exe

pid process

584 4596bafc0efc36a8f3ec2574dba1e8ae82e5b6051a2b5cce1605057a20855072.exe

pid	process
584	4596bafc0efc36a8f3ec2574dba1e8ae82e5b6051a2b5cce1605057a20855072.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:

4596bafc0efc36a8f3ec2574dba1e8ae82e5b6051a2b5cce1605057a20855072.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4596bafc0efc36a8f3ec2574dba1e8ae82e5b6051a2b5cce1605057a20855072.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

4596bafc0efc36a8f3ec2574dba1e8ae82e5b6051a2b5cce1605057a20855072.exe

pid process

584 4596bafc0efc36a8f3ec2574dba1e8ae82e5b6051a2b5cce1605057a20855072.exe

pid	process
584	4596bafc0efc36a8f3ec2574dba1e8ae82e5b6051a2b5cce1605057a20855072.exe

C:\Users\Admin\AppData\Local\Temp\4596bafc0efc36a8f3ec2574dba1e8ae82e5b6051a2b5cce1605057a20855072.exe
"C:\Users\Admin\AppData\Local\Temp\4596bafc0efc36a8f3ec2574dba1e8ae82e5b6051a2b5cce1605057a20855072.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:584

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/584-0-0x0000000001320000-0x00000000019A2000-memory.dmp

Filesize
6.5MB

Download
memory/584-1-0x0000000077060000-0x0000000077062000-memory.dmp

Filesize
8KB

Download
memory/584-3-0x0000000001320000-0x00000000019A2000-memory.dmp

Filesize
6.5MB

Download
memory/584-2-0x0000000001321000-0x0000000001338000-memory.dmp

Filesize
92KB

Download
memory/584-4-0x0000000001320000-0x00000000019A2000-memory.dmp

Filesize
6.5MB

Download