stealc | 9428acfc31a1bd917b6c19f0b67feb8425acf0f4074bf6ce4b4db947d64cfe22

Analysis

max time kernel
139s
max time network
138s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
03-11-2024 03:24

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General

Target

9428acfc31a1bd917b6c19f0b67feb8425acf0f4074bf6ce4b4db947d64cfe22.exe
Size

2.1MB
MD5

19b6495f991ce6a2a9dce387fa8a1bf8
SHA1

e44c2f2550dfcdb8d47eb3be4d883be9f6fd09d2
SHA256

9428acfc31a1bd917b6c19f0b67feb8425acf0f4074bf6ce4b4db947d64cfe22
SHA512

6b3ce54f6278c02ff3bd63c752d838e953630f575b61a3928b6a69861ccd9dbe2f7b76acb59c677c166dd9570d909ba2508510970f20762c2cbc9577f6fdf369
SSDEEP

49152:GW+uCJwMrzZU0j58PjmZoZU+MUStR9MoMZ0uoYAFjyZ:/+uCBODPsOU+rStDM0lYY

Score

10^/10

stealc tale discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

tale

http://185.215.113.206

Attributes

url_path
/6c4adf523b719729.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__	9428acfc31a1bd917b6c19f0b67feb8425acf0f4074bf6ce4b4db947d64cfe22.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	9428acfc31a1bd917b6c19f0b67feb8425acf0f4074bf6ce4b4db947d64cfe22.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	9428acfc31a1bd917b6c19f0b67feb8425acf0f4074bf6ce4b4db947d64cfe22.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-1-5-21-4089630652-1596403869-279772308-1000\Software\Wine	9428acfc31a1bd917b6c19f0b67feb8425acf0f4074bf6ce4b4db947d64cfe22.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1036	9428acfc31a1bd917b6c19f0b67feb8425acf0f4074bf6ce4b4db947d64cfe22.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	9428acfc31a1bd917b6c19f0b67feb8425acf0f4074bf6ce4b4db947d64cfe22.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1036	9428acfc31a1bd917b6c19f0b67feb8425acf0f4074bf6ce4b4db947d64cfe22.exe
1036	9428acfc31a1bd917b6c19f0b67feb8425acf0f4074bf6ce4b4db947d64cfe22.exe

C:\Users\Admin\AppData\Local\Temp\9428acfc31a1bd917b6c19f0b67feb8425acf0f4074bf6ce4b4db947d64cfe22.exe
"C:\Users\Admin\AppData\Local\Temp\9428acfc31a1bd917b6c19f0b67feb8425acf0f4074bf6ce4b4db947d64cfe22.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:1036

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/1036-0-0x0000000000320000-0x0000000000A62000-memory.dmp

Filesize
7.3MB

Download
memory/1036-1-0x0000000077134000-0x0000000077136000-memory.dmp

Filesize
8KB

Download
memory/1036-2-0x0000000000321000-0x0000000000389000-memory.dmp

Filesize
416KB

Download
memory/1036-3-0x0000000000320000-0x0000000000A62000-memory.dmp

Filesize
7.3MB

Download
memory/1036-4-0x0000000000320000-0x0000000000A62000-memory.dmp

Filesize
7.3MB

Download