stealc | cefd403d738a98aacd4c0bcbcfd8bd16af6da5e9fd6bb371b183270724745b4c

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
12/12/2024, 21:36

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General

Target

file.exe
Size

1.8MB
MD5

11bf0c70ccd9edaaa470be5b5a6b05c6
SHA1

bdcda48fb20caf28a9285bf5bb5d1d10c4540b55
SHA256

cefd403d738a98aacd4c0bcbcfd8bd16af6da5e9fd6bb371b183270724745b4c
SHA512

a8c3c7fc7550dff1558caceae2c32e5b4895ae2ba855c3c9483567af9be77b1e17ec6b35cb596c053a129464cb58821cf00d4f3b62fe1ee99b21f06f5b0f550a
SSDEEP

49152:+5vprFc/oc0bZ1I3v1NPbZA8toml1but/:EEdf3lDFl1bk

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__	file.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	file.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	file.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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Wine	file.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2536	file.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	file.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2536	file.exe

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.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:2536

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

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Downloads

memory/2536-0-0x0000000000C10000-0x00000000012C1000-memory.dmp

Filesize
6.7MB

Download
memory/2536-1-0x00000000770A0000-0x00000000770A2000-memory.dmp

Filesize
8KB

Download
memory/2536-2-0x0000000000C11000-0x0000000000C28000-memory.dmp

Filesize
92KB

Download
memory/2536-3-0x0000000000C10000-0x00000000012C1000-memory.dmp

Filesize
6.7MB

Download
memory/2536-4-0x0000000000C10000-0x00000000012C1000-memory.dmp

Filesize
6.7MB

Download