stealc | 3806b9f4eb73630796343fa069a80fc29705bd31f719ab9ad8841a17f225b8c4

Analysis

max time kernel
14s
max time network
19s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
23-11-2024 02:16

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General

Target

3806b9f4eb73630796343fa069a80fc29705bd31f719ab9ad8841a17f225b8c4.exe
Size

1.7MB
MD5

7f133608117d2d14e36a7b73d6c173af
SHA1

b0d7ad4e7b66129b16512761d4a86303b5928a81
SHA256

3806b9f4eb73630796343fa069a80fc29705bd31f719ab9ad8841a17f225b8c4
SHA512

1434642cfce942003bce803deba580aff7f420a1c0868ff43b6c891039568b6513667f4c14ec421c37dbcb8a7e3b9b3c9c256beed476cc1099f396d9bd5ae90e
SSDEEP

49152:anx5e/w4qYaUEHrsqpiUIcHfHfgJQrLo+MwudQ:axcwUavHrsqNIcHfYJG1uS

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

Processes:

3806b9f4eb73630796343fa069a80fc29705bd31f719ab9ad8841a17f225b8c4.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 3806b9f4eb73630796343fa069a80fc29705bd31f719ab9ad8841a17f225b8c4.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	3806b9f4eb73630796343fa069a80fc29705bd31f719ab9ad8841a17f225b8c4.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

Processes:

3806b9f4eb73630796343fa069a80fc29705bd31f719ab9ad8841a17f225b8c4.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	3806b9f4eb73630796343fa069a80fc29705bd31f719ab9ad8841a17f225b8c4.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	3806b9f4eb73630796343fa069a80fc29705bd31f719ab9ad8841a17f225b8c4.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

Processes:

3806b9f4eb73630796343fa069a80fc29705bd31f719ab9ad8841a17f225b8c4.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Wine	3806b9f4eb73630796343fa069a80fc29705bd31f719ab9ad8841a17f225b8c4.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

3806b9f4eb73630796343fa069a80fc29705bd31f719ab9ad8841a17f225b8c4.exe

pid process

840 3806b9f4eb73630796343fa069a80fc29705bd31f719ab9ad8841a17f225b8c4.exe

pid	process
840	3806b9f4eb73630796343fa069a80fc29705bd31f719ab9ad8841a17f225b8c4.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

Processes:

3806b9f4eb73630796343fa069a80fc29705bd31f719ab9ad8841a17f225b8c4.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3806b9f4eb73630796343fa069a80fc29705bd31f719ab9ad8841a17f225b8c4.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

3806b9f4eb73630796343fa069a80fc29705bd31f719ab9ad8841a17f225b8c4.exe

pid process

840 3806b9f4eb73630796343fa069a80fc29705bd31f719ab9ad8841a17f225b8c4.exe

pid	process
840	3806b9f4eb73630796343fa069a80fc29705bd31f719ab9ad8841a17f225b8c4.exe

C:\Users\Admin\AppData\Local\Temp\3806b9f4eb73630796343fa069a80fc29705bd31f719ab9ad8841a17f225b8c4.exe
"C:\Users\Admin\AppData\Local\Temp\3806b9f4eb73630796343fa069a80fc29705bd31f719ab9ad8841a17f225b8c4.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:840

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/840-0-0x0000000001020000-0x00000000016B6000-memory.dmp

Filesize
6.6MB

Download
memory/840-1-0x00000000777B0000-0x00000000777B2000-memory.dmp

Filesize
8KB

Download
memory/840-2-0x0000000001021000-0x0000000001038000-memory.dmp

Filesize
92KB

Download
memory/840-3-0x0000000001020000-0x00000000016B6000-memory.dmp

Filesize
6.6MB

Download
memory/840-4-0x0000000001020000-0x00000000016B6000-memory.dmp

Filesize
6.6MB

Download