stealc | a1beb1b6905dfbbe838d57ef29eb0da2b9b55774c2e671b17b97f1f7270df4fe

Analysis

max time kernel
135s
max time network
147s
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 03:30

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

a1beb1b6905dfbbe838d57ef29eb0da2b9b55774c2e671b17b97f1f7270df4fe.exe
Size

2.0MB
MD5

1961e708ede31eb77c90159c2182395e
SHA1

f84842f5691277be672adbdc9df0ed3d195df533
SHA256

a1beb1b6905dfbbe838d57ef29eb0da2b9b55774c2e671b17b97f1f7270df4fe
SHA512

4ddcde6343ad3cff829d86d4011583f56263005ea8de17b60a353545f93837f4d4039569d8292ce542bc1835c967ec25405896949349b03eae509b0575a9becf
SSDEEP

49152:cLYzhE42nWtGu/MX7SoPnmcNpU/Dk8Y0rSDk7YB6u50:EYzqlWbkLSAmcLgqBQ25

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__	a1beb1b6905dfbbe838d57ef29eb0da2b9b55774c2e671b17b97f1f7270df4fe.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	a1beb1b6905dfbbe838d57ef29eb0da2b9b55774c2e671b17b97f1f7270df4fe.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	a1beb1b6905dfbbe838d57ef29eb0da2b9b55774c2e671b17b97f1f7270df4fe.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-1-5-21-493223053-2004649691-1575712786-1000\Software\Wine	a1beb1b6905dfbbe838d57ef29eb0da2b9b55774c2e671b17b97f1f7270df4fe.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2520	a1beb1b6905dfbbe838d57ef29eb0da2b9b55774c2e671b17b97f1f7270df4fe.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	a1beb1b6905dfbbe838d57ef29eb0da2b9b55774c2e671b17b97f1f7270df4fe.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2520	a1beb1b6905dfbbe838d57ef29eb0da2b9b55774c2e671b17b97f1f7270df4fe.exe
2520	a1beb1b6905dfbbe838d57ef29eb0da2b9b55774c2e671b17b97f1f7270df4fe.exe

C:\Users\Admin\AppData\Local\Temp\a1beb1b6905dfbbe838d57ef29eb0da2b9b55774c2e671b17b97f1f7270df4fe.exe
"C:\Users\Admin\AppData\Local\Temp\a1beb1b6905dfbbe838d57ef29eb0da2b9b55774c2e671b17b97f1f7270df4fe.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:2520

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2520-0-0x00000000004C0000-0x0000000000BF4000-memory.dmp

Filesize
7.2MB

Download
memory/2520-1-0x00000000778D4000-0x00000000778D6000-memory.dmp

Filesize
8KB

Download
memory/2520-2-0x00000000004C1000-0x0000000000529000-memory.dmp

Filesize
416KB

Download
memory/2520-3-0x00000000004C0000-0x0000000000BF4000-memory.dmp

Filesize
7.2MB

Download
memory/2520-5-0x00000000004C0000-0x0000000000BF4000-memory.dmp

Filesize
7.2MB

Download