stealc | f1d0c85ac082f628f4b93a30e9f1097499fdfb74d0143ccfe4a5a6468ccb3e2b

Analysis

max time kernel
14s
max time network
18s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
22-11-2024 08:45

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General

Target

f1d0c85ac082f628f4b93a30e9f1097499fdfb74d0143ccfe4a5a6468ccb3e2b.exe
Size

1.7MB
MD5

a5fbf4f1976483efb8676ef10287adec
SHA1

18e67d1a9e4f8bc36c889925110cc0aadca52038
SHA256

f1d0c85ac082f628f4b93a30e9f1097499fdfb74d0143ccfe4a5a6468ccb3e2b
SHA512

fcf7fc5e8f798729116c92cccb83f8a1dc9a3dd40a5af13d98d5fd466bec3d6c6bfea3bfd7864a2545eef468591fc631d70050b364e0ea72ee27e4707dca5edb
SSDEEP

24576:ojbkK0RLYofX1IirjhZkrhKfp5AKA/osc3Ye5oVxhJkzlo/HrLaKJp47:ojunfX5jhMEfvbsc3Y3DkGzLQ

Score

10^/10

stealc mars discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

mars

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__	f1d0c85ac082f628f4b93a30e9f1097499fdfb74d0143ccfe4a5a6468ccb3e2b.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	f1d0c85ac082f628f4b93a30e9f1097499fdfb74d0143ccfe4a5a6468ccb3e2b.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	f1d0c85ac082f628f4b93a30e9f1097499fdfb74d0143ccfe4a5a6468ccb3e2b.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	f1d0c85ac082f628f4b93a30e9f1097499fdfb74d0143ccfe4a5a6468ccb3e2b.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2424	f1d0c85ac082f628f4b93a30e9f1097499fdfb74d0143ccfe4a5a6468ccb3e2b.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	f1d0c85ac082f628f4b93a30e9f1097499fdfb74d0143ccfe4a5a6468ccb3e2b.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2424	f1d0c85ac082f628f4b93a30e9f1097499fdfb74d0143ccfe4a5a6468ccb3e2b.exe

C:\Users\Admin\AppData\Local\Temp\f1d0c85ac082f628f4b93a30e9f1097499fdfb74d0143ccfe4a5a6468ccb3e2b.exe
"C:\Users\Admin\AppData\Local\Temp\f1d0c85ac082f628f4b93a30e9f1097499fdfb74d0143ccfe4a5a6468ccb3e2b.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:2424

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/2424-0-0x00000000008C0000-0x0000000000F5C000-memory.dmp

Filesize
6.6MB

Download
memory/2424-1-0x0000000077D00000-0x0000000077D02000-memory.dmp

Filesize
8KB

Download
memory/2424-2-0x00000000008C1000-0x00000000008D8000-memory.dmp

Filesize
92KB

Download
memory/2424-3-0x00000000008C0000-0x0000000000F5C000-memory.dmp

Filesize
6.6MB

Download
memory/2424-4-0x00000000008C0000-0x0000000000F5C000-memory.dmp

Filesize
6.6MB

Download