stealc | a23e1bcc61ca1ec01443b28086f0920f5189d26c58e6692222af6ce94a06263d

Analysis

max time kernel
93s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
13/09/2024, 01:37

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General

Target

a23e1bcc61ca1ec01443b28086f0920f5189d26c58e6692222af6ce94a06263d.exe
Size

1.7MB
MD5

97dd619dcbadc44470b6c19830164406
SHA1

e7c6df990e5ff0686480dd2e343c91e51cdd42da
SHA256

a23e1bcc61ca1ec01443b28086f0920f5189d26c58e6692222af6ce94a06263d
SHA512

2d628e2b2d0fba5e9d6f38f86d655a1f4d0e8a367e82804cbfa1261f1593a5b639b84f1ce29fe4cdafb269a38414a35a0605b5b8ddeac3a398d9d692b931bfea
SSDEEP

24576:f2gRID+zI3mpgDqdPKiNNr1aGQjQizP8BRp3A7MUzJ6NOcq9e5BqdqCAe2szgQyl:u7+E3pKCS1RQjpm7hUU4cqPoCAe1z

Score

10^/10

stealc rave discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

rave

http://185.215.113.103

Attributes

url_path
/e2b1563c6670f193.php

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer 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__	a23e1bcc61ca1ec01443b28086f0920f5189d26c58e6692222af6ce94a06263d.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\VideoBiosVersion	a23e1bcc61ca1ec01443b28086f0920f5189d26c58e6692222af6ce94a06263d.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	a23e1bcc61ca1ec01443b28086f0920f5189d26c58e6692222af6ce94a06263d.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-1-5-21-786284298-625481688-3210388970-1000\Software\Wine	a23e1bcc61ca1ec01443b28086f0920f5189d26c58e6692222af6ce94a06263d.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4152	a23e1bcc61ca1ec01443b28086f0920f5189d26c58e6692222af6ce94a06263d.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	a23e1bcc61ca1ec01443b28086f0920f5189d26c58e6692222af6ce94a06263d.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4152	a23e1bcc61ca1ec01443b28086f0920f5189d26c58e6692222af6ce94a06263d.exe
4152	a23e1bcc61ca1ec01443b28086f0920f5189d26c58e6692222af6ce94a06263d.exe

C:\Users\Admin\AppData\Local\Temp\a23e1bcc61ca1ec01443b28086f0920f5189d26c58e6692222af6ce94a06263d.exe
"C:\Users\Admin\AppData\Local\Temp\a23e1bcc61ca1ec01443b28086f0920f5189d26c58e6692222af6ce94a06263d.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:4152

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/4152-0-0x0000000000120000-0x00000000007A3000-memory.dmp

Filesize
6.5MB

Download
memory/4152-1-0x0000000077D94000-0x0000000077D96000-memory.dmp

Filesize
8KB

Download
memory/4152-2-0x0000000000121000-0x0000000000135000-memory.dmp

Filesize
80KB

Download
memory/4152-3-0x0000000000120000-0x00000000007A3000-memory.dmp

Filesize
6.5MB

Download
memory/4152-4-0x0000000000120000-0x00000000007A3000-memory.dmp

Filesize
6.5MB

Download