Malware Analysis Report

2025-05-28 15:16

Sample ID 250519-2dt8eaem4y
Target 2025-05-19_2816b4bbc8a46cdc97448f2acd41d0fd_black-basta_cobalt-strike_hijackloader_satacom
SHA256 89121a03c69ebc751de4d4dd1c6cdb2f11c0febb6bf59c740744a7fe58f38d41
Tags
phorphiex xmrig defense_evasion discovery execution loader miner persistence trojan upx 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

89121a03c69ebc751de4d4dd1c6cdb2f11c0febb6bf59c740744a7fe58f38d41

Threat Level: Known bad

The file 2025-05-19_2816b4bbc8a46cdc97448f2acd41d0fd_black-basta_cobalt-strike_hijackloader_satacom was found to be: Known bad.

Malicious Activity Summary

phorphiex xmrig defense_evasion discovery execution loader miner persistence trojan upx worm

Xmrig family

Phorphiex payload

Phorphiex, Phorpiex

xmrig

Phorphiex family

XMRig Miner payload

Creates new service(s)

Downloads MZ/PE file

Stops running service(s)

Executes dropped EXE

Adds Run key to start application

Suspicious use of SetThreadContext

UPX packed file

Drops file in Windows directory

Launches sc.exe

System Location Discovery: System Language Discovery

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-05-19 22:28

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2025-05-19 22:28

Reported

2025-05-19 22:30

Platform

win10v2004-20250502-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2025-05-19_2816b4bbc8a46cdc97448f2acd41d0fd_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

Xmrig family

xmrig

xmrig

miner xmrig

XMRig Miner payload

miner
Description Indicator Process Target
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Creates new service(s)

persistence execution

Stops running service(s)

defense_evasion execution

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\3347223266.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4444 set thread context of 3412 N/A C:\ProgramData\MgrSrvdrvcs\sysmtdrav.exe C:\Windows\system32\conhost.exe
PID 4444 set thread context of 2052 N/A C:\ProgramData\MgrSrvdrvcs\sysmtdrav.exe C:\Windows\system32\dwm.exe

UPX packed file

upx
Description Indicator Process Target
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Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\syscrondvr.exe C:\Users\Admin\AppData\Local\Temp\3347223266.exe N/A
File opened for modification C:\Windows\syscrondvr.exe C:\Users\Admin\AppData\Local\Temp\3347223266.exe N/A

Launches sc.exe

Description Indicator Process Target
N/A N/A C:\Windows\system32\sc.exe N/A
N/A N/A C:\Windows\system32\sc.exe N/A
N/A N/A C:\Windows\system32\sc.exe N/A
N/A N/A C:\Windows\system32\sc.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\9337.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\3347223266.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\1963424940.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeLockMemoryPrivilege N/A C:\Windows\system32\dwm.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4264 wrote to memory of 1144 N/A C:\Users\Admin\AppData\Local\Temp\2025-05-19_2816b4bbc8a46cdc97448f2acd41d0fd_black-basta_cobalt-strike_hijackloader_satacom.exe C:\Users\Admin\AppData\Local\Temp\9337.exe
PID 4264 wrote to memory of 1144 N/A C:\Users\Admin\AppData\Local\Temp\2025-05-19_2816b4bbc8a46cdc97448f2acd41d0fd_black-basta_cobalt-strike_hijackloader_satacom.exe C:\Users\Admin\AppData\Local\Temp\9337.exe
PID 4264 wrote to memory of 1144 N/A C:\Users\Admin\AppData\Local\Temp\2025-05-19_2816b4bbc8a46cdc97448f2acd41d0fd_black-basta_cobalt-strike_hijackloader_satacom.exe C:\Users\Admin\AppData\Local\Temp\9337.exe
PID 1144 wrote to memory of 4940 N/A C:\Users\Admin\AppData\Local\Temp\9337.exe C:\Users\Admin\AppData\Local\Temp\3347223266.exe
PID 1144 wrote to memory of 4940 N/A C:\Users\Admin\AppData\Local\Temp\9337.exe C:\Users\Admin\AppData\Local\Temp\3347223266.exe
PID 1144 wrote to memory of 4940 N/A C:\Users\Admin\AppData\Local\Temp\9337.exe C:\Users\Admin\AppData\Local\Temp\3347223266.exe
PID 4940 wrote to memory of 4908 N/A C:\Users\Admin\AppData\Local\Temp\3347223266.exe C:\Windows\syscrondvr.exe
PID 4940 wrote to memory of 4908 N/A C:\Users\Admin\AppData\Local\Temp\3347223266.exe C:\Windows\syscrondvr.exe
PID 4940 wrote to memory of 4908 N/A C:\Users\Admin\AppData\Local\Temp\3347223266.exe C:\Windows\syscrondvr.exe
PID 4324 wrote to memory of 2300 N/A C:\Windows\system32\cmd.exe C:\Windows\syscrondvr.exe
PID 4324 wrote to memory of 2300 N/A C:\Windows\system32\cmd.exe C:\Windows\syscrondvr.exe
PID 4324 wrote to memory of 2300 N/A C:\Windows\system32\cmd.exe C:\Windows\syscrondvr.exe
PID 4908 wrote to memory of 4544 N/A C:\Windows\syscrondvr.exe C:\Users\Admin\AppData\Local\Temp\1963424940.exe
PID 4908 wrote to memory of 4544 N/A C:\Windows\syscrondvr.exe C:\Users\Admin\AppData\Local\Temp\1963424940.exe
PID 4908 wrote to memory of 4544 N/A C:\Windows\syscrondvr.exe C:\Users\Admin\AppData\Local\Temp\1963424940.exe
PID 4544 wrote to memory of 5040 N/A C:\Users\Admin\AppData\Local\Temp\1963424940.exe C:\Users\Admin\AppData\Local\Temp\2630922196.exe
PID 4544 wrote to memory of 5040 N/A C:\Users\Admin\AppData\Local\Temp\1963424940.exe C:\Users\Admin\AppData\Local\Temp\2630922196.exe
PID 4444 wrote to memory of 3412 N/A C:\ProgramData\MgrSrvdrvcs\sysmtdrav.exe C:\Windows\system32\conhost.exe
PID 4444 wrote to memory of 3412 N/A C:\ProgramData\MgrSrvdrvcs\sysmtdrav.exe C:\Windows\system32\conhost.exe
PID 4444 wrote to memory of 3412 N/A C:\ProgramData\MgrSrvdrvcs\sysmtdrav.exe C:\Windows\system32\conhost.exe
PID 4444 wrote to memory of 3412 N/A C:\ProgramData\MgrSrvdrvcs\sysmtdrav.exe C:\Windows\system32\conhost.exe
PID 4444 wrote to memory of 3412 N/A C:\ProgramData\MgrSrvdrvcs\sysmtdrav.exe C:\Windows\system32\conhost.exe
PID 4444 wrote to memory of 3412 N/A C:\ProgramData\MgrSrvdrvcs\sysmtdrav.exe C:\Windows\system32\conhost.exe
PID 4444 wrote to memory of 3412 N/A C:\ProgramData\MgrSrvdrvcs\sysmtdrav.exe C:\Windows\system32\conhost.exe
PID 4444 wrote to memory of 3412 N/A C:\ProgramData\MgrSrvdrvcs\sysmtdrav.exe C:\Windows\system32\conhost.exe
PID 4444 wrote to memory of 3412 N/A C:\ProgramData\MgrSrvdrvcs\sysmtdrav.exe C:\Windows\system32\conhost.exe
PID 4444 wrote to memory of 2052 N/A C:\ProgramData\MgrSrvdrvcs\sysmtdrav.exe C:\Windows\system32\dwm.exe
PID 4444 wrote to memory of 2052 N/A C:\ProgramData\MgrSrvdrvcs\sysmtdrav.exe C:\Windows\system32\dwm.exe
PID 4444 wrote to memory of 2052 N/A C:\ProgramData\MgrSrvdrvcs\sysmtdrav.exe C:\Windows\system32\dwm.exe
PID 4444 wrote to memory of 2052 N/A C:\ProgramData\MgrSrvdrvcs\sysmtdrav.exe C:\Windows\system32\dwm.exe
PID 4444 wrote to memory of 2052 N/A C:\ProgramData\MgrSrvdrvcs\sysmtdrav.exe C:\Windows\system32\dwm.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2025-05-19_2816b4bbc8a46cdc97448f2acd41d0fd_black-basta_cobalt-strike_hijackloader_satacom.exe

"C:\Users\Admin\AppData\Local\Temp\2025-05-19_2816b4bbc8a46cdc97448f2acd41d0fd_black-basta_cobalt-strike_hijackloader_satacom.exe"

C:\Users\Admin\AppData\Local\Temp\9337.exe

"C:\Users\Admin\AppData\Local\Temp\9337.exe"

C:\Users\Admin\AppData\Local\Temp\3347223266.exe

C:\Users\Admin\AppData\Local\Temp\3347223266.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\1963424940.exe

C:\Users\Admin\AppData\Local\Temp\1963424940.exe

C:\Users\Admin\AppData\Local\Temp\2630922196.exe

C:\Users\Admin\AppData\Local\Temp\2630922196.exe

C:\Windows\system32\sc.exe

C:\Windows\system32\sc.exe delete "MgrSrvdrvcs"

C:\Windows\system32\sc.exe

C:\Windows\system32\sc.exe create "MgrSrvdrvcs" binpath= "C:\ProgramData\MgrSrvdrvcs\sysmtdrav.exe" start= "auto"

C:\Windows\system32\sc.exe

C:\Windows\system32\sc.exe stop eventlog

C:\Windows\system32\sc.exe

C:\Windows\system32\sc.exe start "MgrSrvdrvcs"

C:\ProgramData\MgrSrvdrvcs\sysmtdrav.exe

C:\ProgramData\MgrSrvdrvcs\sysmtdrav.exe

C:\Windows\system32\conhost.exe

C:\Windows\system32\conhost.exe

C:\Windows\system32\dwm.exe

dwm.exe

Network

Country Destination Domain Proto
UA 185.156.72.39:80 185.156.72.39 tcp
IE 23.216.155.144:443 www.bing.com tcp
IE 23.216.155.144:443 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 150.171.27.10:443 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
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
EG 45.244.71.146:40500 udp
YE 188.240.127.246:40500 tcp
IR 5.233.35.72:40500 udp
KZ 37.150.133.72:40500 udp
UZ 5.133.123.125:40500 udp
SY 77.44.203.34:40500 udp
IR 93.118.127.143:40500 udp
IR 84.241.34.246:40500 tcp
MX 201.114.193.183:40500 udp
KG 212.42.103.24:40500 udp
IR 188.209.46.116:40500 udp
YE 178.130.81.52:40500 udp
EG 197.164.229.81:40500 udp
UA 185.156.72.39:80 185.156.72.39 tcp
UZ 89.236.218.234:40500 tcp
JP 14.193.132.209:40500 udp
UA 185.156.72.39:5151 tcp
VE 38.166.4.218:40500 udp
KZ 89.218.234.46:40500 udp
IR 37.254.42.168:40500 udp
YE 178.130.101.205:40500 udp
IR 134.35.154.93:40500 tcp

Files

C:\Users\Admin\AppData\Local\Temp\9337.exe

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

C:\Users\Admin\AppData\Local\Temp\3347223266.exe

MD5 f30fdbf3448f67cbc3566f31729cb7a6
SHA1 fbf005c38f4a1c2e86817a2cb70406fc241f2c90
SHA256 81783b558904becc5b86553faba9525070de5f43339766eb1c025bcfbfe1eef8
SHA512 b428df2c8f8b4a002c8d7e1bfd9926e5cf95ee998688a2c360b8551e80be5bfbfa17ef210bea35f247da4a5c8a940fb5dba49f4786da9a74e5d001b771c8e9a8

C:\Users\Admin\AppData\Local\Temp\1963424940.exe

MD5 c08cfa523c9377d3ae24fdb373b3ae13
SHA1 5289219770ad28b0fa4f0bdd91817f76bd6be222
SHA256 326c70a965d4e642275c26cd913e268b1db89edd59b31a86ee600a7a9c664eb0
SHA512 c91acd580ac832d5fed363a9a2b98b724a255d82e4fdda6eca62133feb5e60dd79a8caca36597a52bfbfa907a44208c48b15142e2e6020db219d14e970c3f57c

C:\Users\Admin\AppData\Local\Temp\2630922196.exe

MD5 0000638ebbfe0d620abe6ca32abb1b58
SHA1 ae908681544765eb238e92b4ff7df26884692aa0
SHA256 267ec6176c1111d9ffcf32fcfa6aa65917e64d1556dcbbd8989ee6bbebc2e72f
SHA512 1522ed6c96d0a6699aaf5c1e6e3956742f26e8b46f2c795c0b6cfd3c02421aa6101134ded49c6b97e4085a789056cfb2d0fa09630c1c8796c7fc8d49aef66212

memory/3412-41-0x0000000140000000-0x000000014000D000-memory.dmp

memory/3412-38-0x0000000140000000-0x000000014000D000-memory.dmp

memory/3412-37-0x0000000140000000-0x000000014000D000-memory.dmp

memory/3412-36-0x0000000140000000-0x000000014000D000-memory.dmp

memory/3412-35-0x0000000140000000-0x000000014000D000-memory.dmp

memory/3412-34-0x0000000140000000-0x000000014000D000-memory.dmp

memory/2052-42-0x0000000140000000-0x0000000140835000-memory.dmp

memory/2052-44-0x0000000140000000-0x0000000140835000-memory.dmp

memory/2052-47-0x0000000140000000-0x0000000140835000-memory.dmp

memory/2052-49-0x000001EAF38A0000-0x000001EAF38C0000-memory.dmp

memory/2052-53-0x0000000140000000-0x0000000140835000-memory.dmp

memory/2052-54-0x0000000140000000-0x0000000140835000-memory.dmp

memory/2052-52-0x0000000140000000-0x0000000140835000-memory.dmp

memory/2052-51-0x0000000140000000-0x0000000140835000-memory.dmp

memory/2052-50-0x0000000140000000-0x0000000140835000-memory.dmp

memory/2052-48-0x0000000140000000-0x0000000140835000-memory.dmp

memory/2052-46-0x0000000140000000-0x0000000140835000-memory.dmp

memory/2052-45-0x0000000140000000-0x0000000140835000-memory.dmp

memory/2052-43-0x0000000140000000-0x0000000140835000-memory.dmp