Malware Analysis Report

2025-05-28 15:16

Sample ID 250516-cr7m8avvbv
Target 2025-05-16_ca1c1cc932544dc71d853cf63273b11d_black-basta_cobalt-strike_hijackloader_satacom
SHA256 c250e1c3db966fa7364aacdd23a129c0317ba75df1350b020103ba4321b35c94
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

c250e1c3db966fa7364aacdd23a129c0317ba75df1350b020103ba4321b35c94

Threat Level: Known bad

The file 2025-05-16_ca1c1cc932544dc71d853cf63273b11d_black-basta_cobalt-strike_hijackloader_satacom was found to be: Known bad.

Malicious Activity Summary

phorphiex discovery loader persistence trojan worm

Phorphiex, Phorpiex

Phorphiex payload

Phorphiex family

Downloads MZ/PE file

Executes dropped EXE

Adds Run key to start application

Drops file in Windows directory

Drops file in Program Files directory

Unsigned PE

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-05-16 02:19

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2025-05-16 02:19

Reported

2025-05-16 02:22

Platform

win11-20250508-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2025-05-16_ca1c1cc932544dc71d853cf63273b11d_black-basta_cobalt-strike_hijackloader_satacom.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\9DB7.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\754331940.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\754331940.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\Program Files\AMD\CIM\Log\SetupCD.txt C:\Users\Admin\AppData\Local\Temp\2025-05-16_ca1c1cc932544dc71d853cf63273b11d_black-basta_cobalt-strike_hijackloader_satacom.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\syscrondvr.exe C:\Users\Admin\AppData\Local\Temp\754331940.exe N/A
File opened for modification C:\Windows\syscrondvr.exe C:\Users\Admin\AppData\Local\Temp\754331940.exe N/A

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\syscrondvr.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\9DB7.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\754331940.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4304 wrote to memory of 5324 N/A C:\Users\Admin\AppData\Local\Temp\2025-05-16_ca1c1cc932544dc71d853cf63273b11d_black-basta_cobalt-strike_hijackloader_satacom.exe C:\Users\Admin\AppData\Local\Temp\9DB7.exe
PID 4304 wrote to memory of 5324 N/A C:\Users\Admin\AppData\Local\Temp\2025-05-16_ca1c1cc932544dc71d853cf63273b11d_black-basta_cobalt-strike_hijackloader_satacom.exe C:\Users\Admin\AppData\Local\Temp\9DB7.exe
PID 4304 wrote to memory of 5324 N/A C:\Users\Admin\AppData\Local\Temp\2025-05-16_ca1c1cc932544dc71d853cf63273b11d_black-basta_cobalt-strike_hijackloader_satacom.exe C:\Users\Admin\AppData\Local\Temp\9DB7.exe
PID 5324 wrote to memory of 3760 N/A C:\Users\Admin\AppData\Local\Temp\9DB7.exe C:\Users\Admin\AppData\Local\Temp\754331940.exe
PID 5324 wrote to memory of 3760 N/A C:\Users\Admin\AppData\Local\Temp\9DB7.exe C:\Users\Admin\AppData\Local\Temp\754331940.exe
PID 5324 wrote to memory of 3760 N/A C:\Users\Admin\AppData\Local\Temp\9DB7.exe C:\Users\Admin\AppData\Local\Temp\754331940.exe
PID 3760 wrote to memory of 4028 N/A C:\Users\Admin\AppData\Local\Temp\754331940.exe C:\Windows\syscrondvr.exe
PID 3760 wrote to memory of 4028 N/A C:\Users\Admin\AppData\Local\Temp\754331940.exe C:\Windows\syscrondvr.exe
PID 3760 wrote to memory of 4028 N/A C:\Users\Admin\AppData\Local\Temp\754331940.exe C:\Windows\syscrondvr.exe
PID 4140 wrote to memory of 5556 N/A C:\Windows\system32\cmd.exe C:\Windows\syscrondvr.exe
PID 4140 wrote to memory of 5556 N/A C:\Windows\system32\cmd.exe C:\Windows\syscrondvr.exe
PID 4140 wrote to memory of 5556 N/A C:\Windows\system32\cmd.exe C:\Windows\syscrondvr.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2025-05-16_ca1c1cc932544dc71d853cf63273b11d_black-basta_cobalt-strike_hijackloader_satacom.exe

"C:\Users\Admin\AppData\Local\Temp\2025-05-16_ca1c1cc932544dc71d853cf63273b11d_black-basta_cobalt-strike_hijackloader_satacom.exe"

C:\Users\Admin\AppData\Local\Temp\9DB7.exe

"C:\Users\Admin\AppData\Local\Temp\9DB7.exe"

C:\Users\Admin\AppData\Local\Temp\754331940.exe

C:\Users\Admin\AppData\Local\Temp\754331940.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
UA 185.156.72.39:80 185.156.72.39 tcp
UA 185.156.72.39:80 185.156.72.39 tcp
NL 45.141.233.6:80 45.141.233.6 tcp
US 20.72.235.82:80 www.update.microsoft.com tcp
IR 217.77.124.74:40500 udp
KZ 88.151.180.214:40500 tcp
UZ 93.188.86.40:40500 udp
MX 187.140.148.108:40500 udp
KZ 92.47.62.86:40500 udp
MX 187.235.178.97:40500 udp
MX 187.140.136.174:40500 udp
IR 188.211.55.15:40500 tcp
IR 2.190.155.107:40500 udp
UZ 89.236.218.234:40500 udp
PK 182.183.172.143:40500 udp
IR 188.215.223.248:40500 udp
RU 92.124.152.236:40500 udp
AZ 213.154.15.109:40500 tcp
RU 46.159.170.65:40500 udp
KZ 178.89.16.200:40500 udp
MX 189.142.107.69:40500 udp
RU 92.125.151.204:40500 udp
MX 187.133.20.144:40500 udp
IR 93.115.239.2:40500 tcp

Files

C:\Users\Admin\AppData\Local\Temp\9DB7.exe

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

C:\Users\Admin\AppData\Local\Temp\754331940.exe

MD5 f30fdbf3448f67cbc3566f31729cb7a6
SHA1 fbf005c38f4a1c2e86817a2cb70406fc241f2c90
SHA256 81783b558904becc5b86553faba9525070de5f43339766eb1c025bcfbfe1eef8
SHA512 b428df2c8f8b4a002c8d7e1bfd9926e5cf95ee998688a2c360b8551e80be5bfbfa17ef210bea35f247da4a5c8a940fb5dba49f4786da9a74e5d001b771c8e9a8

Analysis: behavioral1

Detonation Overview

Submitted

2025-05-16 02:19

Reported

2025-05-16 02:22

Platform

win10v2004-20250502-en

Max time kernel

149s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2025-05-16_ca1c1cc932544dc71d853cf63273b11d_black-basta_cobalt-strike_hijackloader_satacom.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\5592.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\145184399.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\145184399.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\Program Files\AMD\CIM\Log\SetupCD.txt C:\Users\Admin\AppData\Local\Temp\2025-05-16_ca1c1cc932544dc71d853cf63273b11d_black-basta_cobalt-strike_hijackloader_satacom.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\syscrondvr.exe C:\Users\Admin\AppData\Local\Temp\145184399.exe N/A
File opened for modification C:\Windows\syscrondvr.exe C:\Users\Admin\AppData\Local\Temp\145184399.exe N/A

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\syscrondvr.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\5592.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\145184399.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4384 wrote to memory of 2848 N/A C:\Users\Admin\AppData\Local\Temp\2025-05-16_ca1c1cc932544dc71d853cf63273b11d_black-basta_cobalt-strike_hijackloader_satacom.exe C:\Users\Admin\AppData\Local\Temp\5592.exe
PID 4384 wrote to memory of 2848 N/A C:\Users\Admin\AppData\Local\Temp\2025-05-16_ca1c1cc932544dc71d853cf63273b11d_black-basta_cobalt-strike_hijackloader_satacom.exe C:\Users\Admin\AppData\Local\Temp\5592.exe
PID 4384 wrote to memory of 2848 N/A C:\Users\Admin\AppData\Local\Temp\2025-05-16_ca1c1cc932544dc71d853cf63273b11d_black-basta_cobalt-strike_hijackloader_satacom.exe C:\Users\Admin\AppData\Local\Temp\5592.exe
PID 2848 wrote to memory of 5888 N/A C:\Users\Admin\AppData\Local\Temp\5592.exe C:\Users\Admin\AppData\Local\Temp\145184399.exe
PID 2848 wrote to memory of 5888 N/A C:\Users\Admin\AppData\Local\Temp\5592.exe C:\Users\Admin\AppData\Local\Temp\145184399.exe
PID 2848 wrote to memory of 5888 N/A C:\Users\Admin\AppData\Local\Temp\5592.exe C:\Users\Admin\AppData\Local\Temp\145184399.exe
PID 5888 wrote to memory of 4164 N/A C:\Users\Admin\AppData\Local\Temp\145184399.exe C:\Windows\syscrondvr.exe
PID 5888 wrote to memory of 4164 N/A C:\Users\Admin\AppData\Local\Temp\145184399.exe C:\Windows\syscrondvr.exe
PID 5888 wrote to memory of 4164 N/A C:\Users\Admin\AppData\Local\Temp\145184399.exe C:\Windows\syscrondvr.exe
PID 2836 wrote to memory of 2012 N/A C:\Windows\system32\cmd.exe C:\Windows\syscrondvr.exe
PID 2836 wrote to memory of 2012 N/A C:\Windows\system32\cmd.exe C:\Windows\syscrondvr.exe
PID 2836 wrote to memory of 2012 N/A C:\Windows\system32\cmd.exe C:\Windows\syscrondvr.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2025-05-16_ca1c1cc932544dc71d853cf63273b11d_black-basta_cobalt-strike_hijackloader_satacom.exe

"C:\Users\Admin\AppData\Local\Temp\2025-05-16_ca1c1cc932544dc71d853cf63273b11d_black-basta_cobalt-strike_hijackloader_satacom.exe"

C:\Users\Admin\AppData\Local\Temp\5592.exe

"C:\Users\Admin\AppData\Local\Temp\5592.exe"

C:\Users\Admin\AppData\Local\Temp\145184399.exe

C:\Users\Admin\AppData\Local\Temp\145184399.exe

C:\Windows\syscrondvr.exe

C:\Windows\syscrondvr.exe

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /c 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
UA 185.156.72.39:80 185.156.72.39 tcp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
UA 185.156.72.39:80 185.156.72.39 tcp
US 8.8.8.8:53 c.pki.goog udp
FR 142.251.37.35:80 c.pki.goog tcp
NL 45.141.233.6:80 45.141.233.6 tcp
US 8.8.8.8:53 www.update.microsoft.com udp
US 20.72.235.82:80 www.update.microsoft.com tcp
MX 189.164.211.54:40500 udp
SY 185.172.239.236:40500 tcp
MX 189.150.82.112:40500 udp
RU 188.225.67.245:40500 udp
IR 151.234.195.94:40500 udp
IN 59.91.192.126:40500 udp
UZ 217.30.163.6:40500 udp
MX 187.225.195.150:40500 tcp
EG 102.189.132.113:40500 udp
MX 189.224.121.105:40500 udp
UZ 5.133.123.159:40500 udp
UZ 217.30.162.161:40500 udp
IR 77.238.118.132:40500 udp
IR 78.38.29.237:40500 tcp

Files

C:\Users\Admin\AppData\Local\Temp\5592.exe

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

C:\Users\Admin\AppData\Local\Temp\145184399.exe

MD5 f30fdbf3448f67cbc3566f31729cb7a6
SHA1 fbf005c38f4a1c2e86817a2cb70406fc241f2c90
SHA256 81783b558904becc5b86553faba9525070de5f43339766eb1c025bcfbfe1eef8
SHA512 b428df2c8f8b4a002c8d7e1bfd9926e5cf95ee998688a2c360b8551e80be5bfbfa17ef210bea35f247da4a5c8a940fb5dba49f4786da9a74e5d001b771c8e9a8