Malware Analysis Report

2025-05-28 15:16

Sample ID 250518-tc5zhsgm3v
Target 2025-05-18_870b9b5bb21ee1eb03866d1e0ee92c9a_amadey_black-basta_cobalt-strike_elex_hijackloader_luca-stealer
SHA256 62a3266f5fe8ffc5ce1a1b9e0fdcf75f1fae2ad40fe5c4f3c02d406ea64abda1
Tags
phorphiex discovery loader persistence trojan worm
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V16

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

62a3266f5fe8ffc5ce1a1b9e0fdcf75f1fae2ad40fe5c4f3c02d406ea64abda1

Threat Level: Known bad

The file 2025-05-18_870b9b5bb21ee1eb03866d1e0ee92c9a_amadey_black-basta_cobalt-strike_elex_hijackloader_luca-stealer was found to be: Known bad.

Malicious Activity Summary

phorphiex discovery loader persistence trojan worm

Phorphiex, Phorpiex

Phorphiex family

Phorphiex payload

Downloads MZ/PE file

Executes dropped EXE

Adds Run key to start application

Drops file in Windows directory

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-05-18 15:55

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2025-05-18 15:55

Reported

2025-05-18 15:58

Platform

win10v2004-20250502-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2025-05-18_870b9b5bb21ee1eb03866d1e0ee92c9a_amadey_black-basta_cobalt-strike_elex_hijackloader_luca-stealer.exe"

Signatures

Phorphiex family

phorphiex

Phorphiex payload

Description Indicator Process Target
N/A N/A N/A N/A

Phorphiex, Phorpiex

worm trojan loader phorphiex

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\9A6B.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\2075929236.exe N/A
N/A N/A C:\Windows\syscrondvr.exe N/A
N/A N/A C:\Windows\syscrondvr.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Settings = "C:\\Windows\\syscrondvr.exe" C:\Users\Admin\AppData\Local\Temp\2075929236.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\syscrondvr.exe C:\Users\Admin\AppData\Local\Temp\2075929236.exe N/A
File opened for modification C:\Windows\syscrondvr.exe C:\Users\Admin\AppData\Local\Temp\2075929236.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\2025-05-18_870b9b5bb21ee1eb03866d1e0ee92c9a_amadey_black-basta_cobalt-strike_elex_hijackloader_luca-stealer.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\9A6B.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\2075929236.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\syscrondvr.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 5720 wrote to memory of 2476 N/A C:\Users\Admin\AppData\Local\Temp\2025-05-18_870b9b5bb21ee1eb03866d1e0ee92c9a_amadey_black-basta_cobalt-strike_elex_hijackloader_luca-stealer.exe C:\Users\Admin\AppData\Local\Temp\9A6B.exe
PID 5720 wrote to memory of 2476 N/A C:\Users\Admin\AppData\Local\Temp\2025-05-18_870b9b5bb21ee1eb03866d1e0ee92c9a_amadey_black-basta_cobalt-strike_elex_hijackloader_luca-stealer.exe C:\Users\Admin\AppData\Local\Temp\9A6B.exe
PID 5720 wrote to memory of 2476 N/A C:\Users\Admin\AppData\Local\Temp\2025-05-18_870b9b5bb21ee1eb03866d1e0ee92c9a_amadey_black-basta_cobalt-strike_elex_hijackloader_luca-stealer.exe C:\Users\Admin\AppData\Local\Temp\9A6B.exe
PID 2476 wrote to memory of 4044 N/A C:\Users\Admin\AppData\Local\Temp\9A6B.exe C:\Users\Admin\AppData\Local\Temp\2075929236.exe
PID 2476 wrote to memory of 4044 N/A C:\Users\Admin\AppData\Local\Temp\9A6B.exe C:\Users\Admin\AppData\Local\Temp\2075929236.exe
PID 2476 wrote to memory of 4044 N/A C:\Users\Admin\AppData\Local\Temp\9A6B.exe C:\Users\Admin\AppData\Local\Temp\2075929236.exe
PID 4044 wrote to memory of 2932 N/A C:\Users\Admin\AppData\Local\Temp\2075929236.exe C:\Windows\syscrondvr.exe
PID 4044 wrote to memory of 2932 N/A C:\Users\Admin\AppData\Local\Temp\2075929236.exe C:\Windows\syscrondvr.exe
PID 4044 wrote to memory of 2932 N/A C:\Users\Admin\AppData\Local\Temp\2075929236.exe C:\Windows\syscrondvr.exe
PID 5404 wrote to memory of 3480 N/A C:\Windows\system32\cmd.exe C:\Windows\syscrondvr.exe
PID 5404 wrote to memory of 3480 N/A C:\Windows\system32\cmd.exe C:\Windows\syscrondvr.exe
PID 5404 wrote to memory of 3480 N/A C:\Windows\system32\cmd.exe C:\Windows\syscrondvr.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2025-05-18_870b9b5bb21ee1eb03866d1e0ee92c9a_amadey_black-basta_cobalt-strike_elex_hijackloader_luca-stealer.exe

"C:\Users\Admin\AppData\Local\Temp\2025-05-18_870b9b5bb21ee1eb03866d1e0ee92c9a_amadey_black-basta_cobalt-strike_elex_hijackloader_luca-stealer.exe"

C:\Users\Admin\AppData\Local\Temp\9A6B.exe

"C:\Users\Admin\AppData\Local\Temp\9A6B.exe"

C:\Users\Admin\AppData\Local\Temp\2075929236.exe

C:\Users\Admin\AppData\Local\Temp\2075929236.exe

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /c C:\Windows\syscrondvr.exe

C:\Windows\syscrondvr.exe

C:\Windows\syscrondvr.exe

C:\Windows\syscrondvr.exe

C:\Windows\syscrondvr.exe

Network

Country Destination Domain Proto
UA 185.156.72.39:80 185.156.72.39 tcp
US 8.8.8.8:53 g.bing.com udp
US 150.171.27.10:443 g.bing.com tcp
GB 2.16.153.222:443 www.bing.com tcp
UA 185.156.72.39:80 185.156.72.39 tcp
UA 185.156.72.39:80 185.156.72.39 tcp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
NL 45.141.233.6:80 45.141.233.6 tcp
US 8.8.8.8:53 www.update.microsoft.com udp
US 20.109.209.108:80 www.update.microsoft.com tcp
IR 46.100.52.196:40500 udp
UZ 195.158.22.210:40500 tcp
CN 113.118.42.68:40500 udp
US 8.8.8.8:53 c.pki.goog udp
GB 142.250.178.3:80 c.pki.goog tcp
YE 178.130.66.39:40500 udp
RU 46.158.86.203:40500 udp
CN 124.192.100.45:40500 udp
RU 95.156.103.50:40500 udp
RU 109.165.113.218:40500 tcp
KZ 89.218.239.106:40500 udp
MX 187.235.197.33:40500 udp
CN 218.202.215.94:40500 udp
KZ 2.133.248.122:40500 udp
KZ 92.47.62.86:40500 udp
VE 190.202.1.132:40500 tcp
YE 188.240.127.246:40500 udp
KZ 2.133.97.45:40500 udp
MX 189.191.164.156:40500 udp
KZ 92.47.185.41:40500 udp
TJ 77.244.144.31:40500 udp
IR 46.100.164.239:40500 tcp

Files

C:\Users\Admin\AppData\Local\Temp\9A6B.exe

MD5 0ec46393976eb51f307cc11d80bae845
SHA1 69d4cb168f3a1b97c37a0ba1519d0adb1ff7e245
SHA256 252171bdaa35d19f872c165e861b03d347a4afb85d7a03d02f8eae09d191038d
SHA512 803351760e3c422e4825103235e13085004b3418b483a2c646aafaef62b7212a1ba4ed28469134a236c5b6121e6a748ba958bbae2dbe4afe9f9f45704928d31f

C:\Users\Admin\AppData\Local\Temp\2075929236.exe

MD5 f30fdbf3448f67cbc3566f31729cb7a6
SHA1 fbf005c38f4a1c2e86817a2cb70406fc241f2c90
SHA256 81783b558904becc5b86553faba9525070de5f43339766eb1c025bcfbfe1eef8
SHA512 b428df2c8f8b4a002c8d7e1bfd9926e5cf95ee998688a2c360b8551e80be5bfbfa17ef210bea35f247da4a5c8a940fb5dba49f4786da9a74e5d001b771c8e9a8