stealc | f5947732c4e7fa325ba0f68f616411a07a3f7a6f758ecf59eacda86398b7be20

Analysis

max time kernel
94s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-11-2024 03:19

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General

Target

f5947732c4e7fa325ba0f68f616411a07a3f7a6f758ecf59eacda86398b7be20.exe
Size

1.8MB
MD5

2f54862033f0c859845e063b0de4086b
SHA1

448d12afa10f15b4ca1eaf57c8f88b30ae70608e
SHA256

f5947732c4e7fa325ba0f68f616411a07a3f7a6f758ecf59eacda86398b7be20
SHA512

09b7809d7bbfb501dee9dffd40aec7b7ecbc0dfb3386f19c9b50841a13a28aeeb85bea9e9a901ad8c8897acbb8434fdcfb65f1138609c281519eabe147d9c9df
SSDEEP

49152:IKLsUCXqRyjOgzcODpw4erSJNIMg8xd0Cl8:I+s2yig1pwZCIMpD/l

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:

f5947732c4e7fa325ba0f68f616411a07a3f7a6f758ecf59eacda86398b7be20.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ f5947732c4e7fa325ba0f68f616411a07a3f7a6f758ecf59eacda86398b7be20.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	f5947732c4e7fa325ba0f68f616411a07a3f7a6f758ecf59eacda86398b7be20.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:

f5947732c4e7fa325ba0f68f616411a07a3f7a6f758ecf59eacda86398b7be20.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	f5947732c4e7fa325ba0f68f616411a07a3f7a6f758ecf59eacda86398b7be20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	f5947732c4e7fa325ba0f68f616411a07a3f7a6f758ecf59eacda86398b7be20.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:

f5947732c4e7fa325ba0f68f616411a07a3f7a6f758ecf59eacda86398b7be20.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Wine	f5947732c4e7fa325ba0f68f616411a07a3f7a6f758ecf59eacda86398b7be20.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

f5947732c4e7fa325ba0f68f616411a07a3f7a6f758ecf59eacda86398b7be20.exe

pid process

1468 f5947732c4e7fa325ba0f68f616411a07a3f7a6f758ecf59eacda86398b7be20.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:

f5947732c4e7fa325ba0f68f616411a07a3f7a6f758ecf59eacda86398b7be20.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f5947732c4e7fa325ba0f68f616411a07a3f7a6f758ecf59eacda86398b7be20.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

f5947732c4e7fa325ba0f68f616411a07a3f7a6f758ecf59eacda86398b7be20.exe

pid	process
1468	f5947732c4e7fa325ba0f68f616411a07a3f7a6f758ecf59eacda86398b7be20.exe
1468	f5947732c4e7fa325ba0f68f616411a07a3f7a6f758ecf59eacda86398b7be20.exe

C:\Users\Admin\AppData\Local\Temp\f5947732c4e7fa325ba0f68f616411a07a3f7a6f758ecf59eacda86398b7be20.exe
"C:\Users\Admin\AppData\Local\Temp\f5947732c4e7fa325ba0f68f616411a07a3f7a6f758ecf59eacda86398b7be20.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:1468

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/1468-0-0x00000000004D0000-0x0000000000B75000-memory.dmp

Filesize
6.6MB

Download
memory/1468-1-0x0000000077324000-0x0000000077326000-memory.dmp

Filesize
8KB

Download
memory/1468-2-0x00000000004D1000-0x00000000004E8000-memory.dmp

Filesize
92KB

Download
memory/1468-3-0x00000000004D0000-0x0000000000B75000-memory.dmp

Filesize
6.6MB

Download
memory/1468-4-0x00000000004D0000-0x0000000000B75000-memory.dmp

Filesize
6.6MB

Download