Malware Analysis Report

2025-05-28 15:16

Sample ID 250519-2degys1js2
Target 2025-05-19_205802ce966ce66d0ffab32968d29284_black-basta_cobalt-strike_satacom
SHA256 9466db73a9b8cf747ea3d63bf67460e1e5414d718683cd636d39f40c391448ba
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

9466db73a9b8cf747ea3d63bf67460e1e5414d718683cd636d39f40c391448ba

Threat Level: Known bad

The file 2025-05-19_205802ce966ce66d0ffab32968d29284_black-basta_cobalt-strike_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

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-05-19 22:27

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-05-19 22:27

Reported

2025-05-19 22:30

Platform

win10v2004-20250502-en

Max time kernel

148s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2025-05-19_205802ce966ce66d0ffab32968d29284_black-basta_cobalt-strike_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

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\29592141.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\syscrondvr.exe C:\Users\Admin\AppData\Local\Temp\29592141.exe N/A
File opened for modification C:\Windows\syscrondvr.exe C:\Users\Admin\AppData\Local\Temp\29592141.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\274734325.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\79F3.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\29592141.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 3576 wrote to memory of 3708 N/A C:\Users\Admin\AppData\Local\Temp\2025-05-19_205802ce966ce66d0ffab32968d29284_black-basta_cobalt-strike_satacom.exe C:\Users\Admin\AppData\Local\Temp\79F3.exe
PID 3576 wrote to memory of 3708 N/A C:\Users\Admin\AppData\Local\Temp\2025-05-19_205802ce966ce66d0ffab32968d29284_black-basta_cobalt-strike_satacom.exe C:\Users\Admin\AppData\Local\Temp\79F3.exe
PID 3576 wrote to memory of 3708 N/A C:\Users\Admin\AppData\Local\Temp\2025-05-19_205802ce966ce66d0ffab32968d29284_black-basta_cobalt-strike_satacom.exe C:\Users\Admin\AppData\Local\Temp\79F3.exe
PID 3708 wrote to memory of 2032 N/A C:\Users\Admin\AppData\Local\Temp\79F3.exe C:\Users\Admin\AppData\Local\Temp\29592141.exe
PID 3708 wrote to memory of 2032 N/A C:\Users\Admin\AppData\Local\Temp\79F3.exe C:\Users\Admin\AppData\Local\Temp\29592141.exe
PID 3708 wrote to memory of 2032 N/A C:\Users\Admin\AppData\Local\Temp\79F3.exe C:\Users\Admin\AppData\Local\Temp\29592141.exe
PID 2032 wrote to memory of 3520 N/A C:\Users\Admin\AppData\Local\Temp\29592141.exe C:\Windows\syscrondvr.exe
PID 2032 wrote to memory of 3520 N/A C:\Users\Admin\AppData\Local\Temp\29592141.exe C:\Windows\syscrondvr.exe
PID 2032 wrote to memory of 3520 N/A C:\Users\Admin\AppData\Local\Temp\29592141.exe C:\Windows\syscrondvr.exe
PID 556 wrote to memory of 4184 N/A C:\Windows\system32\cmd.exe C:\Windows\syscrondvr.exe
PID 556 wrote to memory of 4184 N/A C:\Windows\system32\cmd.exe C:\Windows\syscrondvr.exe
PID 556 wrote to memory of 4184 N/A C:\Windows\system32\cmd.exe C:\Windows\syscrondvr.exe
PID 3520 wrote to memory of 5312 N/A C:\Windows\syscrondvr.exe C:\Users\Admin\AppData\Local\Temp\274734325.exe
PID 3520 wrote to memory of 5312 N/A C:\Windows\syscrondvr.exe C:\Users\Admin\AppData\Local\Temp\274734325.exe
PID 3520 wrote to memory of 5312 N/A C:\Windows\syscrondvr.exe C:\Users\Admin\AppData\Local\Temp\274734325.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2025-05-19_205802ce966ce66d0ffab32968d29284_black-basta_cobalt-strike_satacom.exe

"C:\Users\Admin\AppData\Local\Temp\2025-05-19_205802ce966ce66d0ffab32968d29284_black-basta_cobalt-strike_satacom.exe"

C:\Users\Admin\AppData\Local\Temp\79F3.exe

"C:\Users\Admin\AppData\Local\Temp\79F3.exe"

C:\Users\Admin\AppData\Local\Temp\29592141.exe

C:\Users\Admin\AppData\Local\Temp\29592141.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

C:\Users\Admin\AppData\Local\Temp\274734325.exe

C:\Users\Admin\AppData\Local\Temp\274734325.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 150.171.28.10:443 g.bing.com tcp
IE 23.216.155.155:443 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
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
NL 45.141.233.6:80 45.141.233.6 tcp
US 8.8.8.8:53 c.pki.goog udp
GB 216.58.201.99:80 c.pki.goog tcp
US 8.8.8.8:53 www.update.microsoft.com udp
US 20.109.209.108:80 www.update.microsoft.com tcp
UZ 195.158.22.11:40500 udp
IR 37.255.245.119:40500 tcp
IR 5.236.54.150:40500 udp
KZ 5.251.11.215:40500 udp
YE 134.35.113.225:40500 udp
KZ 2.132.93.195:40500 udp
KZ 5.251.244.13:40500 udp
RU 109.165.113.218:40500 tcp
IR 94.183.8.244:40500 udp
SY 185.209.32.186:40500 udp
IR 5.236.218.220:40500 udp
KZ 92.46.166.120:40500 udp
RU 37.19.50.57:40500 udp
MX 187.234.179.35:40500 tcp
PK 103.4.92.235:40500 udp
KZ 5.251.9.50:40500 udp
RU 195.161.65.213:40500 tcp
MX 187.140.136.174:40500 udp
MX 187.133.20.144:40500 udp
KZ 2.132.215.241:40500 udp

Files

C:\Users\Admin\AppData\Local\Temp\79F3.exe

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

C:\Users\Admin\AppData\Local\Temp\29592141.exe

MD5 f30fdbf3448f67cbc3566f31729cb7a6
SHA1 fbf005c38f4a1c2e86817a2cb70406fc241f2c90
SHA256 81783b558904becc5b86553faba9525070de5f43339766eb1c025bcfbfe1eef8
SHA512 b428df2c8f8b4a002c8d7e1bfd9926e5cf95ee998688a2c360b8551e80be5bfbfa17ef210bea35f247da4a5c8a940fb5dba49f4786da9a74e5d001b771c8e9a8

C:\Users\Admin\AppData\Local\Temp\274734325.exe

MD5 c08cfa523c9377d3ae24fdb373b3ae13
SHA1 5289219770ad28b0fa4f0bdd91817f76bd6be222
SHA256 326c70a965d4e642275c26cd913e268b1db89edd59b31a86ee600a7a9c664eb0
SHA512 c91acd580ac832d5fed363a9a2b98b724a255d82e4fdda6eca62133feb5e60dd79a8caca36597a52bfbfa907a44208c48b15142e2e6020db219d14e970c3f57c

Analysis: behavioral2

Detonation Overview

Submitted

2025-05-19 22:27

Reported

2025-05-19 22:30

Platform

win11-20250502-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2025-05-19_205802ce966ce66d0ffab32968d29284_black-basta_cobalt-strike_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

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\10515470.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\syscrondvr.exe C:\Users\Admin\AppData\Local\Temp\10515470.exe N/A
File opened for modification C:\Windows\syscrondvr.exe C:\Users\Admin\AppData\Local\Temp\10515470.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\564E.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\10515470.exe N/A
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\62646582.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3500 wrote to memory of 3240 N/A C:\Users\Admin\AppData\Local\Temp\2025-05-19_205802ce966ce66d0ffab32968d29284_black-basta_cobalt-strike_satacom.exe C:\Users\Admin\AppData\Local\Temp\564E.exe
PID 3500 wrote to memory of 3240 N/A C:\Users\Admin\AppData\Local\Temp\2025-05-19_205802ce966ce66d0ffab32968d29284_black-basta_cobalt-strike_satacom.exe C:\Users\Admin\AppData\Local\Temp\564E.exe
PID 3500 wrote to memory of 3240 N/A C:\Users\Admin\AppData\Local\Temp\2025-05-19_205802ce966ce66d0ffab32968d29284_black-basta_cobalt-strike_satacom.exe C:\Users\Admin\AppData\Local\Temp\564E.exe
PID 3240 wrote to memory of 4988 N/A C:\Users\Admin\AppData\Local\Temp\564E.exe C:\Users\Admin\AppData\Local\Temp\10515470.exe
PID 3240 wrote to memory of 4988 N/A C:\Users\Admin\AppData\Local\Temp\564E.exe C:\Users\Admin\AppData\Local\Temp\10515470.exe
PID 3240 wrote to memory of 4988 N/A C:\Users\Admin\AppData\Local\Temp\564E.exe C:\Users\Admin\AppData\Local\Temp\10515470.exe
PID 4988 wrote to memory of 4924 N/A C:\Users\Admin\AppData\Local\Temp\10515470.exe C:\Windows\syscrondvr.exe
PID 4988 wrote to memory of 4924 N/A C:\Users\Admin\AppData\Local\Temp\10515470.exe C:\Windows\syscrondvr.exe
PID 4988 wrote to memory of 4924 N/A C:\Users\Admin\AppData\Local\Temp\10515470.exe C:\Windows\syscrondvr.exe
PID 8 wrote to memory of 5280 N/A C:\Windows\system32\cmd.exe C:\Windows\syscrondvr.exe
PID 8 wrote to memory of 5280 N/A C:\Windows\system32\cmd.exe C:\Windows\syscrondvr.exe
PID 8 wrote to memory of 5280 N/A C:\Windows\system32\cmd.exe C:\Windows\syscrondvr.exe
PID 4924 wrote to memory of 3232 N/A C:\Windows\syscrondvr.exe C:\Users\Admin\AppData\Local\Temp\62646582.exe
PID 4924 wrote to memory of 3232 N/A C:\Windows\syscrondvr.exe C:\Users\Admin\AppData\Local\Temp\62646582.exe
PID 4924 wrote to memory of 3232 N/A C:\Windows\syscrondvr.exe C:\Users\Admin\AppData\Local\Temp\62646582.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2025-05-19_205802ce966ce66d0ffab32968d29284_black-basta_cobalt-strike_satacom.exe

"C:\Users\Admin\AppData\Local\Temp\2025-05-19_205802ce966ce66d0ffab32968d29284_black-basta_cobalt-strike_satacom.exe"

C:\Users\Admin\AppData\Local\Temp\564E.exe

"C:\Users\Admin\AppData\Local\Temp\564E.exe"

C:\Users\Admin\AppData\Local\Temp\10515470.exe

C:\Users\Admin\AppData\Local\Temp\10515470.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

C:\Users\Admin\AppData\Local\Temp\62646582.exe

C:\Users\Admin\AppData\Local\Temp\62646582.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
UA 185.156.72.39:80 185.156.72.39 tcp
NL 45.141.233.6:80 45.141.233.6 tcp
US 20.109.209.108:80 www.update.microsoft.com tcp
UZ 93.188.85.2:40500 udp
RU 78.156.228.91:40500 tcp
UZ 94.230.229.185:40500 udp
DZ 41.101.137.229:40500 udp
IR 5.219.31.164:40500 udp
RS 78.109.103.103:40500 udp
IR 5.238.130.151:40500 udp
KZ 89.218.239.106:40500 tcp
UZ 89.249.62.7:40500 udp
VE 38.196.94.231:40500 udp
IR 2.178.63.197:40500 udp
RU 46.63.194.149:40500 udp
KZ 95.59.73.114:40500 tcp
RO 37.120.247.6:40500 udp
UZ 217.30.162.161:40500 udp
DZ 197.201.159.183:40500 udp
VE 201.248.29.208:40500 udp
IR 2.183.163.165:40500 udp
PK 39.60.179.164:40500 tcp

Files

C:\Users\Admin\AppData\Local\Temp\564E.exe

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

C:\Users\Admin\AppData\Local\Temp\10515470.exe

MD5 f30fdbf3448f67cbc3566f31729cb7a6
SHA1 fbf005c38f4a1c2e86817a2cb70406fc241f2c90
SHA256 81783b558904becc5b86553faba9525070de5f43339766eb1c025bcfbfe1eef8
SHA512 b428df2c8f8b4a002c8d7e1bfd9926e5cf95ee998688a2c360b8551e80be5bfbfa17ef210bea35f247da4a5c8a940fb5dba49f4786da9a74e5d001b771c8e9a8

C:\Users\Admin\AppData\Local\Temp\62646582.exe

MD5 c08cfa523c9377d3ae24fdb373b3ae13
SHA1 5289219770ad28b0fa4f0bdd91817f76bd6be222
SHA256 326c70a965d4e642275c26cd913e268b1db89edd59b31a86ee600a7a9c664eb0
SHA512 c91acd580ac832d5fed363a9a2b98b724a255d82e4fdda6eca62133feb5e60dd79a8caca36597a52bfbfa907a44208c48b15142e2e6020db219d14e970c3f57c