stealc | 1722fc2ecb85459ab3e76adc12f5c29d3e3ee2b4b18dd48c5ef0e5d79b77330e

Analysis

max time kernel
117s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
12-12-2024 18:01

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General

Target

1722fc2ecb85459ab3e76adc12f5c29d3e3ee2b4b18dd48c5ef0e5d79b77330e.exe
Size

1.7MB
MD5

fa8bc0aa526b9961adf9260dc7ec9399
SHA1

044527ce83eb090a0c1ec2cdaddedc5f5405bf2d
SHA256

1722fc2ecb85459ab3e76adc12f5c29d3e3ee2b4b18dd48c5ef0e5d79b77330e
SHA512

2f0244f7f3cf90b0dd1e5d04db4e4d443a16e7779bf791dc68ed54f6d734e1d620193967e96ee881b03e5b6ef6a8609efdb890f5345db340d94fe70c2807c31b
SSDEEP

49152:t92/NDKyX3uiqLqeWMxLg3igyAQi5vqX16ytrCWJ:4huiyLodQSOAytuW

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__	1722fc2ecb85459ab3e76adc12f5c29d3e3ee2b4b18dd48c5ef0e5d79b77330e.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	1722fc2ecb85459ab3e76adc12f5c29d3e3ee2b4b18dd48c5ef0e5d79b77330e.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	1722fc2ecb85459ab3e76adc12f5c29d3e3ee2b4b18dd48c5ef0e5d79b77330e.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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Wine	1722fc2ecb85459ab3e76adc12f5c29d3e3ee2b4b18dd48c5ef0e5d79b77330e.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2380	1722fc2ecb85459ab3e76adc12f5c29d3e3ee2b4b18dd48c5ef0e5d79b77330e.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	1722fc2ecb85459ab3e76adc12f5c29d3e3ee2b4b18dd48c5ef0e5d79b77330e.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2380	1722fc2ecb85459ab3e76adc12f5c29d3e3ee2b4b18dd48c5ef0e5d79b77330e.exe

C:\Users\Admin\AppData\Local\Temp\1722fc2ecb85459ab3e76adc12f5c29d3e3ee2b4b18dd48c5ef0e5d79b77330e.exe
"C:\Users\Admin\AppData\Local\Temp\1722fc2ecb85459ab3e76adc12f5c29d3e3ee2b4b18dd48c5ef0e5d79b77330e.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:2380

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/2380-0-0x0000000000FB0000-0x000000000163E000-memory.dmp

Filesize
6.6MB

Download
memory/2380-1-0x0000000077110000-0x0000000077112000-memory.dmp

Filesize
8KB

Download
memory/2380-2-0x0000000000FB1000-0x0000000000FC8000-memory.dmp

Filesize
92KB

Download
memory/2380-3-0x0000000000FB0000-0x000000000163E000-memory.dmp

Filesize
6.6MB

Download
memory/2380-4-0x0000000000FB0000-0x000000000163E000-memory.dmp

Filesize
6.6MB

Download