stealc | f2bfb48cd4a0e780ff01474ff282d2c00f68c9f0e3ba2adc1716c29889917578

Analysis

max time kernel
122s
max time network
126s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
14-12-2024 14:11

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General

Target

f2bfb48cd4a0e780ff01474ff282d2c00f68c9f0e3ba2adc1716c29889917578.exe
Size

1.7MB
MD5

104c87e36413460a7aff1c0c1b165515
SHA1

c48db3d2a6503255396dc0039a119073bce06450
SHA256

f2bfb48cd4a0e780ff01474ff282d2c00f68c9f0e3ba2adc1716c29889917578
SHA512

f85b3fec710a3d9201accc67d732a08ef9d66577fdffb8ef0ee20aa64ac18df27cb6edd06e75b844f400bbd1da3e973cd2498c55f9d7fedece93c9c8f012eb57
SSDEEP

49152:PIWLYQf9l5JqqcP91IQO3rr9RzT434dR3:gWX6VeHrpJTTd

Score

10^/10

stealc stok discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

stok

http://185.215.113.206

Attributes

url_path
/c4becf79229cb002.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__	f2bfb48cd4a0e780ff01474ff282d2c00f68c9f0e3ba2adc1716c29889917578.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	f2bfb48cd4a0e780ff01474ff282d2c00f68c9f0e3ba2adc1716c29889917578.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	f2bfb48cd4a0e780ff01474ff282d2c00f68c9f0e3ba2adc1716c29889917578.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-1-5-21-3692679935-4019334568-335155002-1000\Software\Wine	f2bfb48cd4a0e780ff01474ff282d2c00f68c9f0e3ba2adc1716c29889917578.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2860	f2bfb48cd4a0e780ff01474ff282d2c00f68c9f0e3ba2adc1716c29889917578.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	f2bfb48cd4a0e780ff01474ff282d2c00f68c9f0e3ba2adc1716c29889917578.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2860	f2bfb48cd4a0e780ff01474ff282d2c00f68c9f0e3ba2adc1716c29889917578.exe

C:\Users\Admin\AppData\Local\Temp\f2bfb48cd4a0e780ff01474ff282d2c00f68c9f0e3ba2adc1716c29889917578.exe
"C:\Users\Admin\AppData\Local\Temp\f2bfb48cd4a0e780ff01474ff282d2c00f68c9f0e3ba2adc1716c29889917578.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:2860

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/2860-0-0x0000000001030000-0x00000000016C1000-memory.dmp

Filesize
6.6MB

Download
memory/2860-1-0x0000000077DC0000-0x0000000077DC2000-memory.dmp

Filesize
8KB

Download
memory/2860-2-0x0000000001031000-0x0000000001048000-memory.dmp

Filesize
92KB

Download
memory/2860-3-0x0000000001030000-0x00000000016C1000-memory.dmp

Filesize
6.6MB

Download
memory/2860-5-0x0000000001030000-0x00000000016C1000-memory.dmp

Filesize
6.6MB

Download