Malware Analysis Report

2025-05-28 15:16

Sample ID 250516-cd5ayawjv6
Target 2025-05-16_b0a6626847ffb7ee2b9eda7422283b10_black-basta_cobalt-strike_hijackloader_satacom
SHA256 a843ea8531a4876dcd1d16cfe46233123cf0a4d864d051c19051985ef10bf399
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

a843ea8531a4876dcd1d16cfe46233123cf0a4d864d051c19051985ef10bf399

Threat Level: Known bad

The file 2025-05-16_b0a6626847ffb7ee2b9eda7422283b10_black-basta_cobalt-strike_hijackloader_satacom was found to be: Known bad.

Malicious Activity Summary

phorphiex discovery loader persistence trojan worm

Phorphiex family

Phorphiex payload

Phorphiex, Phorpiex

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

2025-05-16 01:58

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-05-16 01:58

Reported

2025-05-16 02:01

Platform

win10v2004-20250502-en

Max time kernel

149s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2025-05-16_b0a6626847ffb7ee2b9eda7422283b10_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\6283.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\1905815162.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\1905815162.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\syscrondvr.exe C:\Users\Admin\AppData\Local\Temp\1905815162.exe N/A
File opened for modification C:\Windows\syscrondvr.exe C:\Users\Admin\AppData\Local\Temp\1905815162.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\6283.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\1905815162.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 2760 wrote to memory of 4896 N/A C:\Users\Admin\AppData\Local\Temp\2025-05-16_b0a6626847ffb7ee2b9eda7422283b10_black-basta_cobalt-strike_hijackloader_satacom.exe C:\Users\Admin\AppData\Local\Temp\6283.exe
PID 2760 wrote to memory of 4896 N/A C:\Users\Admin\AppData\Local\Temp\2025-05-16_b0a6626847ffb7ee2b9eda7422283b10_black-basta_cobalt-strike_hijackloader_satacom.exe C:\Users\Admin\AppData\Local\Temp\6283.exe
PID 2760 wrote to memory of 4896 N/A C:\Users\Admin\AppData\Local\Temp\2025-05-16_b0a6626847ffb7ee2b9eda7422283b10_black-basta_cobalt-strike_hijackloader_satacom.exe C:\Users\Admin\AppData\Local\Temp\6283.exe
PID 4896 wrote to memory of 2320 N/A C:\Users\Admin\AppData\Local\Temp\6283.exe C:\Users\Admin\AppData\Local\Temp\1905815162.exe
PID 4896 wrote to memory of 2320 N/A C:\Users\Admin\AppData\Local\Temp\6283.exe C:\Users\Admin\AppData\Local\Temp\1905815162.exe
PID 4896 wrote to memory of 2320 N/A C:\Users\Admin\AppData\Local\Temp\6283.exe C:\Users\Admin\AppData\Local\Temp\1905815162.exe
PID 2320 wrote to memory of 4784 N/A C:\Users\Admin\AppData\Local\Temp\1905815162.exe C:\Windows\syscrondvr.exe
PID 2320 wrote to memory of 4784 N/A C:\Users\Admin\AppData\Local\Temp\1905815162.exe C:\Windows\syscrondvr.exe
PID 2320 wrote to memory of 4784 N/A C:\Users\Admin\AppData\Local\Temp\1905815162.exe C:\Windows\syscrondvr.exe
PID 4940 wrote to memory of 3592 N/A C:\Windows\system32\cmd.exe C:\Windows\syscrondvr.exe
PID 4940 wrote to memory of 3592 N/A C:\Windows\system32\cmd.exe C:\Windows\syscrondvr.exe
PID 4940 wrote to memory of 3592 N/A C:\Windows\system32\cmd.exe C:\Windows\syscrondvr.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2025-05-16_b0a6626847ffb7ee2b9eda7422283b10_black-basta_cobalt-strike_hijackloader_satacom.exe

"C:\Users\Admin\AppData\Local\Temp\2025-05-16_b0a6626847ffb7ee2b9eda7422283b10_black-basta_cobalt-strike_hijackloader_satacom.exe"

C:\Users\Admin\AppData\Local\Temp\6283.exe

"C:\Users\Admin\AppData\Local\Temp\6283.exe"

C:\Users\Admin\AppData\Local\Temp\1905815162.exe

C:\Users\Admin\AppData\Local\Temp\1905815162.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
DE 95.101.170.201:443 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 c.pki.goog udp
FR 142.251.37.35:80 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
RU 37.78.69.140:40500 udp
UZ 93.188.86.40:40500 tcp
IR 151.235.30.170:40500 udp
IR 46.21.87.136:40500 udp
UZ 86.62.3.154:40500 udp
IR 2.185.38.102:40500 udp
IR 2.190.155.107:40500 udp
KZ 5.251.244.13:40500 tcp
IR 2.183.163.165:40500 udp
KZ 95.58.37.69:40500 udp
YE 134.35.27.91:40500 udp
KZ 2.134.116.51:40500 udp
KZ 89.218.133.68:40500 udp
IR 5.235.153.126:40500 tcp
EG 196.130.206.164:40500 udp
IR 77.238.118.132:40500 udp
MX 189.233.63.90:40500 udp
KZ 5.251.244.13:40500 udp
MX 187.172.1.128:40500 udp
N/A 198.163.193.244:40500 tcp

Files

C:\Users\Admin\AppData\Local\Temp\6283.exe

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

C:\Users\Admin\AppData\Local\Temp\1905815162.exe

MD5 f30fdbf3448f67cbc3566f31729cb7a6
SHA1 fbf005c38f4a1c2e86817a2cb70406fc241f2c90
SHA256 81783b558904becc5b86553faba9525070de5f43339766eb1c025bcfbfe1eef8
SHA512 b428df2c8f8b4a002c8d7e1bfd9926e5cf95ee998688a2c360b8551e80be5bfbfa17ef210bea35f247da4a5c8a940fb5dba49f4786da9a74e5d001b771c8e9a8

Analysis: behavioral2

Detonation Overview

Submitted

2025-05-16 01:58

Reported

2025-05-16 02:01

Platform

win11-20250502-en

Max time kernel

148s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2025-05-16_b0a6626847ffb7ee2b9eda7422283b10_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\62A2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\255915267.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\255915267.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\syscrondvr.exe C:\Users\Admin\AppData\Local\Temp\255915267.exe N/A
File opened for modification C:\Windows\syscrondvr.exe C:\Users\Admin\AppData\Local\Temp\255915267.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\62A2.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\255915267.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 3152 wrote to memory of 432 N/A C:\Users\Admin\AppData\Local\Temp\2025-05-16_b0a6626847ffb7ee2b9eda7422283b10_black-basta_cobalt-strike_hijackloader_satacom.exe C:\Users\Admin\AppData\Local\Temp\62A2.exe
PID 3152 wrote to memory of 432 N/A C:\Users\Admin\AppData\Local\Temp\2025-05-16_b0a6626847ffb7ee2b9eda7422283b10_black-basta_cobalt-strike_hijackloader_satacom.exe C:\Users\Admin\AppData\Local\Temp\62A2.exe
PID 3152 wrote to memory of 432 N/A C:\Users\Admin\AppData\Local\Temp\2025-05-16_b0a6626847ffb7ee2b9eda7422283b10_black-basta_cobalt-strike_hijackloader_satacom.exe C:\Users\Admin\AppData\Local\Temp\62A2.exe
PID 432 wrote to memory of 5648 N/A C:\Users\Admin\AppData\Local\Temp\62A2.exe C:\Users\Admin\AppData\Local\Temp\255915267.exe
PID 432 wrote to memory of 5648 N/A C:\Users\Admin\AppData\Local\Temp\62A2.exe C:\Users\Admin\AppData\Local\Temp\255915267.exe
PID 432 wrote to memory of 5648 N/A C:\Users\Admin\AppData\Local\Temp\62A2.exe C:\Users\Admin\AppData\Local\Temp\255915267.exe
PID 5648 wrote to memory of 5292 N/A C:\Users\Admin\AppData\Local\Temp\255915267.exe C:\Windows\syscrondvr.exe
PID 5648 wrote to memory of 5292 N/A C:\Users\Admin\AppData\Local\Temp\255915267.exe C:\Windows\syscrondvr.exe
PID 5648 wrote to memory of 5292 N/A C:\Users\Admin\AppData\Local\Temp\255915267.exe C:\Windows\syscrondvr.exe
PID 5276 wrote to memory of 4864 N/A C:\Windows\system32\cmd.exe C:\Windows\syscrondvr.exe
PID 5276 wrote to memory of 4864 N/A C:\Windows\system32\cmd.exe C:\Windows\syscrondvr.exe
PID 5276 wrote to memory of 4864 N/A C:\Windows\system32\cmd.exe C:\Windows\syscrondvr.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2025-05-16_b0a6626847ffb7ee2b9eda7422283b10_black-basta_cobalt-strike_hijackloader_satacom.exe

"C:\Users\Admin\AppData\Local\Temp\2025-05-16_b0a6626847ffb7ee2b9eda7422283b10_black-basta_cobalt-strike_hijackloader_satacom.exe"

C:\Users\Admin\AppData\Local\Temp\62A2.exe

"C:\Users\Admin\AppData\Local\Temp\62A2.exe"

C:\Users\Admin\AppData\Local\Temp\255915267.exe

C:\Users\Admin\AppData\Local\Temp\255915267.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 20.109.209.108:80 www.update.microsoft.com tcp
UZ 94.230.229.90:40500 udp
IR 188.253.91.19:40500 tcp
KZ 176.124.87.226:40500 udp
US 89.117.254.52:40500 udp
YE 178.130.101.205:40500 udp
SY 94.252.234.188:40500 udp
IR 89.44.147.25:40500 udp
UZ 89.249.62.94:40500 tcp
UZ 217.30.171.37:40500 udp
IR 37.254.8.156:40500 udp
DZ 41.101.189.210:40500 udp
YE 134.35.62.205:40500 udp
RU 188.16.65.172:40500 udp
KZ 92.47.185.41:40500 tcp
YE 134.35.238.16:40500 udp
IR 151.234.195.94:40500 udp
EG 102.189.132.113:40500 udp
IR 93.115.228.165:40500 udp
CN 219.159.184.14:40500 udp
UZ 217.30.162.161:40500 tcp

Files

C:\Users\Admin\AppData\Local\Temp\62A2.exe

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

C:\Users\Admin\AppData\Local\Temp\255915267.exe

MD5 f30fdbf3448f67cbc3566f31729cb7a6
SHA1 fbf005c38f4a1c2e86817a2cb70406fc241f2c90
SHA256 81783b558904becc5b86553faba9525070de5f43339766eb1c025bcfbfe1eef8
SHA512 b428df2c8f8b4a002c8d7e1bfd9926e5cf95ee998688a2c360b8551e80be5bfbfa17ef210bea35f247da4a5c8a940fb5dba49f4786da9a74e5d001b771c8e9a8