stealc | 986607d1cb335025e27b61edec2319b3a1415d9ba85d07dee3178305989b85bf

Analysis

max time kernel
122s
max time network
124s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21-11-2024 20:34

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General

Target

986607d1cb335025e27b61edec2319b3a1415d9ba85d07dee3178305989b85bf.exe
Size

1.8MB
MD5

51590dbdc624f889fb9b1e4dbca3217b
SHA1

23ae80e7424065cd89bff2eec33103edda9a6bff
SHA256

986607d1cb335025e27b61edec2319b3a1415d9ba85d07dee3178305989b85bf
SHA512

2b99d0da3ca3d78af121fbfe5685828c98fa04bec0f647aceb895dd5cd73df8961cb161a76200b6422bbef435f1dd2645695a9de11ff24657430570ad60827ef
SSDEEP

49152:2EH/jBAM9sx3cSxzRDma8FUc/g3k1skFtnLJq1rjfx:3fqgWfxtDB8Fs01skFtn1mj5

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:

986607d1cb335025e27b61edec2319b3a1415d9ba85d07dee3178305989b85bf.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 986607d1cb335025e27b61edec2319b3a1415d9ba85d07dee3178305989b85bf.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	986607d1cb335025e27b61edec2319b3a1415d9ba85d07dee3178305989b85bf.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:

986607d1cb335025e27b61edec2319b3a1415d9ba85d07dee3178305989b85bf.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	986607d1cb335025e27b61edec2319b3a1415d9ba85d07dee3178305989b85bf.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	986607d1cb335025e27b61edec2319b3a1415d9ba85d07dee3178305989b85bf.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:

986607d1cb335025e27b61edec2319b3a1415d9ba85d07dee3178305989b85bf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Wine	986607d1cb335025e27b61edec2319b3a1415d9ba85d07dee3178305989b85bf.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

986607d1cb335025e27b61edec2319b3a1415d9ba85d07dee3178305989b85bf.exe

pid process

2216 986607d1cb335025e27b61edec2319b3a1415d9ba85d07dee3178305989b85bf.exe

pid	process
2216	986607d1cb335025e27b61edec2319b3a1415d9ba85d07dee3178305989b85bf.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:

986607d1cb335025e27b61edec2319b3a1415d9ba85d07dee3178305989b85bf.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	986607d1cb335025e27b61edec2319b3a1415d9ba85d07dee3178305989b85bf.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

986607d1cb335025e27b61edec2319b3a1415d9ba85d07dee3178305989b85bf.exe

pid process

2216 986607d1cb335025e27b61edec2319b3a1415d9ba85d07dee3178305989b85bf.exe

pid	process
2216	986607d1cb335025e27b61edec2319b3a1415d9ba85d07dee3178305989b85bf.exe

C:\Users\Admin\AppData\Local\Temp\986607d1cb335025e27b61edec2319b3a1415d9ba85d07dee3178305989b85bf.exe
"C:\Users\Admin\AppData\Local\Temp\986607d1cb335025e27b61edec2319b3a1415d9ba85d07dee3178305989b85bf.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:2216

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/2216-0-0x00000000000A0000-0x0000000000751000-memory.dmp

Filesize
6.7MB

Download
memory/2216-1-0x0000000077370000-0x0000000077372000-memory.dmp

Filesize
8KB

Download
memory/2216-3-0x00000000000A0000-0x0000000000751000-memory.dmp

Filesize
6.7MB

Download
memory/2216-2-0x00000000000A1000-0x00000000000B8000-memory.dmp

Filesize
92KB

Download
memory/2216-5-0x00000000000A0000-0x0000000000751000-memory.dmp

Filesize
6.7MB

Download