stealc | 85eddfd1bc8ee556593857c0fd0fc5da0b83f955d12fcc86f05345ddc8cf95a2

Analysis

max time kernel
95s
max time network
135s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
25/11/2024, 10:31

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General

Target

85eddfd1bc8ee556593857c0fd0fc5da0b83f955d12fcc86f05345ddc8cf95a2.exe
Size

1.7MB
MD5

791d24a72397c435b7d5a745755a4b0c
SHA1

cc654d593fc92263f7e0142c5c4bd73f209d6043
SHA256

85eddfd1bc8ee556593857c0fd0fc5da0b83f955d12fcc86f05345ddc8cf95a2
SHA512

814be3f8749069538b68283af2e5cb6b5db60efa1f5511a4e187d23ad974b973cbdd2e29c51523d7597df792be704b2ff34c16db5aee37ebe64d36bf0fdcafe2
SSDEEP

24576:GmWo75/1/t1278AIYO5zFZpi0KoJ71oIrNyxlgFnrrQee9zT50bmji984Y3hpCcJ:GmT51KYxZ40d713KgrSzTYaiBY3PTBv

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__	85eddfd1bc8ee556593857c0fd0fc5da0b83f955d12fcc86f05345ddc8cf95a2.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	85eddfd1bc8ee556593857c0fd0fc5da0b83f955d12fcc86f05345ddc8cf95a2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	85eddfd1bc8ee556593857c0fd0fc5da0b83f955d12fcc86f05345ddc8cf95a2.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-1-5-21-1045960512-3948844814-3059691613-1000\Software\Wine	85eddfd1bc8ee556593857c0fd0fc5da0b83f955d12fcc86f05345ddc8cf95a2.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1684	85eddfd1bc8ee556593857c0fd0fc5da0b83f955d12fcc86f05345ddc8cf95a2.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	85eddfd1bc8ee556593857c0fd0fc5da0b83f955d12fcc86f05345ddc8cf95a2.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1684	85eddfd1bc8ee556593857c0fd0fc5da0b83f955d12fcc86f05345ddc8cf95a2.exe
1684	85eddfd1bc8ee556593857c0fd0fc5da0b83f955d12fcc86f05345ddc8cf95a2.exe

C:\Users\Admin\AppData\Local\Temp\85eddfd1bc8ee556593857c0fd0fc5da0b83f955d12fcc86f05345ddc8cf95a2.exe
"C:\Users\Admin\AppData\Local\Temp\85eddfd1bc8ee556593857c0fd0fc5da0b83f955d12fcc86f05345ddc8cf95a2.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:1684

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/1684-0-0x00000000009F0000-0x0000000001093000-memory.dmp

Filesize
6.6MB

Download
memory/1684-1-0x0000000077374000-0x0000000077376000-memory.dmp

Filesize
8KB

Download
memory/1684-2-0x00000000009F1000-0x0000000000A08000-memory.dmp

Filesize
92KB

Download
memory/1684-3-0x00000000009F0000-0x0000000001093000-memory.dmp

Filesize
6.6MB

Download
memory/1684-4-0x00000000009F0000-0x0000000001093000-memory.dmp

Filesize
6.6MB

Download