stealc | 0083dad1f51d5a65b3ca42121af8f656831bddda11a96572f7429d2b8b1a0ea6

Analysis

max time kernel
121s
max time network
125s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
21-11-2024 19:02

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General

Target

0083dad1f51d5a65b3ca42121af8f656831bddda11a96572f7429d2b8b1a0ea6.exe
Size

1.7MB
MD5

5159e84d71f4e3486d068c78a9619c3f
SHA1

efe6a45717b2f98010a1cedb1055e23554776968
SHA256

0083dad1f51d5a65b3ca42121af8f656831bddda11a96572f7429d2b8b1a0ea6
SHA512

d96e03d47951044a9f67950e17111ac98a78b4cbc2727f02793cbcdc90c6e1a24370d9b45329e2dd5032759197996749906e4629e8520b8eae18dcdedf08d869
SSDEEP

49152:o4nWwEYIzjyQPfn/n6+iAUtcyZX8kpTelD48i9:oWkqif/n6DADAskTSDRi9

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:

0083dad1f51d5a65b3ca42121af8f656831bddda11a96572f7429d2b8b1a0ea6.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 0083dad1f51d5a65b3ca42121af8f656831bddda11a96572f7429d2b8b1a0ea6.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	0083dad1f51d5a65b3ca42121af8f656831bddda11a96572f7429d2b8b1a0ea6.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:

0083dad1f51d5a65b3ca42121af8f656831bddda11a96572f7429d2b8b1a0ea6.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	0083dad1f51d5a65b3ca42121af8f656831bddda11a96572f7429d2b8b1a0ea6.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	0083dad1f51d5a65b3ca42121af8f656831bddda11a96572f7429d2b8b1a0ea6.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:

0083dad1f51d5a65b3ca42121af8f656831bddda11a96572f7429d2b8b1a0ea6.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Wine	0083dad1f51d5a65b3ca42121af8f656831bddda11a96572f7429d2b8b1a0ea6.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

0083dad1f51d5a65b3ca42121af8f656831bddda11a96572f7429d2b8b1a0ea6.exe

pid process

1976 0083dad1f51d5a65b3ca42121af8f656831bddda11a96572f7429d2b8b1a0ea6.exe

pid	process
1976	0083dad1f51d5a65b3ca42121af8f656831bddda11a96572f7429d2b8b1a0ea6.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:

0083dad1f51d5a65b3ca42121af8f656831bddda11a96572f7429d2b8b1a0ea6.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0083dad1f51d5a65b3ca42121af8f656831bddda11a96572f7429d2b8b1a0ea6.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

0083dad1f51d5a65b3ca42121af8f656831bddda11a96572f7429d2b8b1a0ea6.exe

pid process

1976 0083dad1f51d5a65b3ca42121af8f656831bddda11a96572f7429d2b8b1a0ea6.exe

pid	process
1976	0083dad1f51d5a65b3ca42121af8f656831bddda11a96572f7429d2b8b1a0ea6.exe

C:\Users\Admin\AppData\Local\Temp\0083dad1f51d5a65b3ca42121af8f656831bddda11a96572f7429d2b8b1a0ea6.exe
"C:\Users\Admin\AppData\Local\Temp\0083dad1f51d5a65b3ca42121af8f656831bddda11a96572f7429d2b8b1a0ea6.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:1976

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/1976-0-0x00000000003B0000-0x0000000000A4D000-memory.dmp

Filesize
6.6MB

Download
memory/1976-1-0x0000000077AB0000-0x0000000077AB2000-memory.dmp

Filesize
8KB

Download
memory/1976-2-0x0000000000B40000-0x0000000000B41000-memory.dmp

Filesize
4KB

Download
memory/1976-3-0x00000000003B1000-0x00000000003C8000-memory.dmp

Filesize
92KB

Download
memory/1976-5-0x00000000003B0000-0x0000000000A4D000-memory.dmp

Filesize
6.6MB

Download