stealc | a3128b43c4e57000b1f341f16b39ffcb2ab5fe0df30ad978a16f341a6babc595

Analysis

max time kernel
92s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
08-11-2024 03:29

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General

Target

a3128b43c4e57000b1f341f16b39ffcb2ab5fe0df30ad978a16f341a6babc595.exe
Size

2.0MB
MD5

3079517b64fb39f7ae3b94f9ba77f37f
SHA1

2d43fdb6498f6397413d21d61f372d78bdd59b96
SHA256

a3128b43c4e57000b1f341f16b39ffcb2ab5fe0df30ad978a16f341a6babc595
SHA512

c4f74e47b9b3c4ff7d05e5ae4ed0559f270b45a1a3b567af9e3ca0ac00b00928ed312f97b4640619ce20bc4d258111159ec295ea8d6e3c65a2147447e81b7ee9
SSDEEP

49152:B9/ArF6/mpZv0YI9l32rXMsnSUUd23CFryn+uKfJHy:BerJpFJ4Ir8sS+iry+u

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__	a3128b43c4e57000b1f341f16b39ffcb2ab5fe0df30ad978a16f341a6babc595.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	a3128b43c4e57000b1f341f16b39ffcb2ab5fe0df30ad978a16f341a6babc595.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	a3128b43c4e57000b1f341f16b39ffcb2ab5fe0df30ad978a16f341a6babc595.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-1-5-21-3227495264-2217614367-4027411560-1000\Software\Wine	a3128b43c4e57000b1f341f16b39ffcb2ab5fe0df30ad978a16f341a6babc595.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1876	a3128b43c4e57000b1f341f16b39ffcb2ab5fe0df30ad978a16f341a6babc595.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	a3128b43c4e57000b1f341f16b39ffcb2ab5fe0df30ad978a16f341a6babc595.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1876	a3128b43c4e57000b1f341f16b39ffcb2ab5fe0df30ad978a16f341a6babc595.exe
1876	a3128b43c4e57000b1f341f16b39ffcb2ab5fe0df30ad978a16f341a6babc595.exe

C:\Users\Admin\AppData\Local\Temp\a3128b43c4e57000b1f341f16b39ffcb2ab5fe0df30ad978a16f341a6babc595.exe
"C:\Users\Admin\AppData\Local\Temp\a3128b43c4e57000b1f341f16b39ffcb2ab5fe0df30ad978a16f341a6babc595.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:1876

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/1876-0-0x00000000006C0000-0x0000000000DD7000-memory.dmp

Filesize
7.1MB

Download
memory/1876-1-0x0000000077114000-0x0000000077116000-memory.dmp

Filesize
8KB

Download
memory/1876-2-0x00000000006C1000-0x0000000000729000-memory.dmp

Filesize
416KB

Download
memory/1876-3-0x00000000006C0000-0x0000000000DD7000-memory.dmp

Filesize
7.1MB

Download
memory/1876-5-0x00000000006C0000-0x0000000000DD7000-memory.dmp

Filesize
7.1MB

Download