stealc | 3ab8b9c2da3a389ae1291f15452c1f5746e0e25bd0ddcd970e6093bd9e9345e0

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
24-11-2024 10:54

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General

Target

3ab8b9c2da3a389ae1291f15452c1f5746e0e25bd0ddcd970e6093bd9e9345e0.exe
Size

1.7MB
MD5

a66862a3db5d4836780035db6f5ef76c
SHA1

02e270f4c70e717e3ce75a558ed28f58598f52d5
SHA256

3ab8b9c2da3a389ae1291f15452c1f5746e0e25bd0ddcd970e6093bd9e9345e0
SHA512

bc27dc22fcd7f4b871a46f0d9fd0a795e714b5b4d57313738ba9e6883b7a0ad33a14ecbf8f9ac999d109094e63b49d5568c2cbaef3679623f205210fb10be9e8
SSDEEP

49152:tw20saa8GDgxrrPlNLV8b8VqeZ+gb/tG52T4jhpQIDY7l:twBa8rfV3+83yhWeYp

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:

3ab8b9c2da3a389ae1291f15452c1f5746e0e25bd0ddcd970e6093bd9e9345e0.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	3ab8b9c2da3a389ae1291f15452c1f5746e0e25bd0ddcd970e6093bd9e9345e0.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:

3ab8b9c2da3a389ae1291f15452c1f5746e0e25bd0ddcd970e6093bd9e9345e0.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	3ab8b9c2da3a389ae1291f15452c1f5746e0e25bd0ddcd970e6093bd9e9345e0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	3ab8b9c2da3a389ae1291f15452c1f5746e0e25bd0ddcd970e6093bd9e9345e0.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:

3ab8b9c2da3a389ae1291f15452c1f5746e0e25bd0ddcd970e6093bd9e9345e0.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Wine	3ab8b9c2da3a389ae1291f15452c1f5746e0e25bd0ddcd970e6093bd9e9345e0.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

3ab8b9c2da3a389ae1291f15452c1f5746e0e25bd0ddcd970e6093bd9e9345e0.exe

pid	Process
1848	3ab8b9c2da3a389ae1291f15452c1f5746e0e25bd0ddcd970e6093bd9e9345e0.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:

3ab8b9c2da3a389ae1291f15452c1f5746e0e25bd0ddcd970e6093bd9e9345e0.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3ab8b9c2da3a389ae1291f15452c1f5746e0e25bd0ddcd970e6093bd9e9345e0.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

3ab8b9c2da3a389ae1291f15452c1f5746e0e25bd0ddcd970e6093bd9e9345e0.exe

pid	Process
1848	3ab8b9c2da3a389ae1291f15452c1f5746e0e25bd0ddcd970e6093bd9e9345e0.exe

C:\Users\Admin\AppData\Local\Temp\3ab8b9c2da3a389ae1291f15452c1f5746e0e25bd0ddcd970e6093bd9e9345e0.exe
"C:\Users\Admin\AppData\Local\Temp\3ab8b9c2da3a389ae1291f15452c1f5746e0e25bd0ddcd970e6093bd9e9345e0.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:1848

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/1848-0-0x0000000000A90000-0x0000000001131000-memory.dmp

Filesize
6.6MB

Download
memory/1848-1-0x0000000077BE0000-0x0000000077BE2000-memory.dmp

Filesize
8KB

Download
memory/1848-3-0x0000000000A90000-0x0000000001131000-memory.dmp

Filesize
6.6MB

Download
memory/1848-2-0x0000000000A91000-0x0000000000AA8000-memory.dmp

Filesize
92KB

Download
memory/1848-4-0x0000000000A90000-0x0000000001131000-memory.dmp

Filesize
6.6MB

Download