stealc | 8027fb5b61305a3b8b76e8f4494d22112bba0b404cdf34e4d67f5522b2691fb2

Analysis

max time kernel
138s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
05-11-2024 09:32

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General

Target

8027fb5b61305a3b8b76e8f4494d22112bba0b404cdf34e4d67f5522b2691fb2.exe
Size

2.0MB
MD5

74bb55a474b1c94e55193bbd6fd37364
SHA1

101b1afbeca11fb3953fe22c4d0557ba93db7330
SHA256

8027fb5b61305a3b8b76e8f4494d22112bba0b404cdf34e4d67f5522b2691fb2
SHA512

5b52d323e8c561dd75e249a5265959bd46557ecf61691c4f516a2f541da693988c3b917fbcc8d58b605e4d7c7687aeea3c5510b9e0c5f4324944025532fa42a1
SSDEEP

24576:gd8HBNAOGZa2fmZPYtCgfFM9Ca7eZ3XtGIWU0dqji/y0SRfa35FLdjnStCyu98kC:g/ZaXQlG7EHtMaOyTubdetCj95WLs

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__	8027fb5b61305a3b8b76e8f4494d22112bba0b404cdf34e4d67f5522b2691fb2.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	8027fb5b61305a3b8b76e8f4494d22112bba0b404cdf34e4d67f5522b2691fb2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	8027fb5b61305a3b8b76e8f4494d22112bba0b404cdf34e4d67f5522b2691fb2.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-1-5-21-3442511616-637977696-3186306149-1000\Software\Wine	8027fb5b61305a3b8b76e8f4494d22112bba0b404cdf34e4d67f5522b2691fb2.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4900	8027fb5b61305a3b8b76e8f4494d22112bba0b404cdf34e4d67f5522b2691fb2.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	8027fb5b61305a3b8b76e8f4494d22112bba0b404cdf34e4d67f5522b2691fb2.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4900	8027fb5b61305a3b8b76e8f4494d22112bba0b404cdf34e4d67f5522b2691fb2.exe
4900	8027fb5b61305a3b8b76e8f4494d22112bba0b404cdf34e4d67f5522b2691fb2.exe

C:\Users\Admin\AppData\Local\Temp\8027fb5b61305a3b8b76e8f4494d22112bba0b404cdf34e4d67f5522b2691fb2.exe
"C:\Users\Admin\AppData\Local\Temp\8027fb5b61305a3b8b76e8f4494d22112bba0b404cdf34e4d67f5522b2691fb2.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:4900

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/4900-0-0x0000000000D40000-0x000000000145E000-memory.dmp

Filesize
7.1MB

Download
memory/4900-1-0x0000000077D14000-0x0000000077D16000-memory.dmp

Filesize
8KB

Download
memory/4900-2-0x0000000000D41000-0x0000000000DA9000-memory.dmp

Filesize
416KB

Download
memory/4900-3-0x0000000000D40000-0x000000000145E000-memory.dmp

Filesize
7.1MB

Download
memory/4900-5-0x0000000000D40000-0x000000000145E000-memory.dmp

Filesize
7.1MB

Download