stealc | 49c1d6ef14144142410cc0b2c721bc31ddc68135324368d6c6e72d6a92135368

Analysis

max time kernel
13s
max time network
19s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
24/11/2024, 11:01

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General

Target

49c1d6ef14144142410cc0b2c721bc31ddc68135324368d6c6e72d6a92135368.exe
Size

1.7MB
MD5

13bed40cfbeb3183a3108f41fc50a0e3
SHA1

a6e037a3bcaeb8b4d43447877e9c838f2b12e7e5
SHA256

49c1d6ef14144142410cc0b2c721bc31ddc68135324368d6c6e72d6a92135368
SHA512

1dd1880943b051c2d483e568f0dde97a8c0973762b6331d5c452d8a9f1011b3b38c4621ae60f2bf5cdf7571afa8bd928e1db216a19ccb3658c3b0ba0afcd6c80
SSDEEP

49152:xU9+qhQuGyU+eN3agyYmYhIHWpBsfgvGY85PMMvVa:xU9HU+EbyJYWHiB3GYkUwa

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__	49c1d6ef14144142410cc0b2c721bc31ddc68135324368d6c6e72d6a92135368.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	49c1d6ef14144142410cc0b2c721bc31ddc68135324368d6c6e72d6a92135368.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	49c1d6ef14144142410cc0b2c721bc31ddc68135324368d6c6e72d6a92135368.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	49c1d6ef14144142410cc0b2c721bc31ddc68135324368d6c6e72d6a92135368.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2596	49c1d6ef14144142410cc0b2c721bc31ddc68135324368d6c6e72d6a92135368.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	49c1d6ef14144142410cc0b2c721bc31ddc68135324368d6c6e72d6a92135368.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2596	49c1d6ef14144142410cc0b2c721bc31ddc68135324368d6c6e72d6a92135368.exe

C:\Users\Admin\AppData\Local\Temp\49c1d6ef14144142410cc0b2c721bc31ddc68135324368d6c6e72d6a92135368.exe
"C:\Users\Admin\AppData\Local\Temp\49c1d6ef14144142410cc0b2c721bc31ddc68135324368d6c6e72d6a92135368.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:2596

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/2596-0-0x0000000001360000-0x0000000001A03000-memory.dmp

Filesize
6.6MB

Download
memory/2596-1-0x00000000774E0000-0x00000000774E2000-memory.dmp

Filesize
8KB

Download
memory/2596-2-0x0000000001361000-0x0000000001378000-memory.dmp

Filesize
92KB

Download
memory/2596-3-0x0000000001360000-0x0000000001A03000-memory.dmp

Filesize
6.6MB

Download
memory/2596-5-0x0000000001360000-0x0000000001A03000-memory.dmp

Filesize
6.6MB

Download