Malware Analysis Report

2025-05-28 15:16

Sample ID 250519-2cz29sem31
Target 2025-05-19_17b1fefe4dfb2bc7dcb40ff27c26afa1_black-basta_cobalt-strike_hijackloader_satacom
SHA256 5dc262307e68186f2ebed477b20f41dfb3fbbc3a9c449f45b8609388d69ffd98
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

5dc262307e68186f2ebed477b20f41dfb3fbbc3a9c449f45b8609388d69ffd98

Threat Level: Known bad

The file 2025-05-19_17b1fefe4dfb2bc7dcb40ff27c26afa1_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

Phorphiex, Phorpiex

Phorphiex family

xmrig

Xmrig family

Phorphiex payload

XMRig Miner payload

Stops running service(s)

Creates new service(s)

Downloads MZ/PE file

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

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-05-19 22:26

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-05-19 22:26

Reported

2025-05-19 22:29

Platform

win10v2004-20250502-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2025-05-19_17b1fefe4dfb2bc7dcb40ff27c26afa1_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\1899514754.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 672 set thread context of 3504 N/A C:\ProgramData\MgrSrvdrvcs\sysmtdrav.exe C:\Windows\system32\conhost.exe
PID 672 set thread context of 4252 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\1899514754.exe N/A
File opened for modification C:\Windows\syscrondvr.exe C:\Users\Admin\AppData\Local\Temp\1899514754.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:\Windows\syscrondvr.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\783416787.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\5F66.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\1899514754.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 5292 wrote to memory of 2256 N/A C:\Users\Admin\AppData\Local\Temp\2025-05-19_17b1fefe4dfb2bc7dcb40ff27c26afa1_black-basta_cobalt-strike_hijackloader_satacom.exe C:\Users\Admin\AppData\Local\Temp\5F66.exe
PID 5292 wrote to memory of 2256 N/A C:\Users\Admin\AppData\Local\Temp\2025-05-19_17b1fefe4dfb2bc7dcb40ff27c26afa1_black-basta_cobalt-strike_hijackloader_satacom.exe C:\Users\Admin\AppData\Local\Temp\5F66.exe
PID 5292 wrote to memory of 2256 N/A C:\Users\Admin\AppData\Local\Temp\2025-05-19_17b1fefe4dfb2bc7dcb40ff27c26afa1_black-basta_cobalt-strike_hijackloader_satacom.exe C:\Users\Admin\AppData\Local\Temp\5F66.exe
PID 2256 wrote to memory of 3308 N/A C:\Users\Admin\AppData\Local\Temp\5F66.exe C:\Users\Admin\AppData\Local\Temp\1899514754.exe
PID 2256 wrote to memory of 3308 N/A C:\Users\Admin\AppData\Local\Temp\5F66.exe C:\Users\Admin\AppData\Local\Temp\1899514754.exe
PID 2256 wrote to memory of 3308 N/A C:\Users\Admin\AppData\Local\Temp\5F66.exe C:\Users\Admin\AppData\Local\Temp\1899514754.exe
PID 3308 wrote to memory of 3436 N/A C:\Users\Admin\AppData\Local\Temp\1899514754.exe C:\Windows\syscrondvr.exe
PID 3308 wrote to memory of 3436 N/A C:\Users\Admin\AppData\Local\Temp\1899514754.exe C:\Windows\syscrondvr.exe
PID 3308 wrote to memory of 3436 N/A C:\Users\Admin\AppData\Local\Temp\1899514754.exe C:\Windows\syscrondvr.exe
PID 4552 wrote to memory of 2088 N/A C:\Windows\system32\cmd.exe C:\Windows\syscrondvr.exe
PID 4552 wrote to memory of 2088 N/A C:\Windows\system32\cmd.exe C:\Windows\syscrondvr.exe
PID 4552 wrote to memory of 2088 N/A C:\Windows\system32\cmd.exe C:\Windows\syscrondvr.exe
PID 3436 wrote to memory of 3084 N/A C:\Windows\syscrondvr.exe C:\Users\Admin\AppData\Local\Temp\783416787.exe
PID 3436 wrote to memory of 3084 N/A C:\Windows\syscrondvr.exe C:\Users\Admin\AppData\Local\Temp\783416787.exe
PID 3436 wrote to memory of 3084 N/A C:\Windows\syscrondvr.exe C:\Users\Admin\AppData\Local\Temp\783416787.exe
PID 3084 wrote to memory of 2100 N/A C:\Users\Admin\AppData\Local\Temp\783416787.exe C:\Users\Admin\AppData\Local\Temp\217642999.exe
PID 3084 wrote to memory of 2100 N/A C:\Users\Admin\AppData\Local\Temp\783416787.exe C:\Users\Admin\AppData\Local\Temp\217642999.exe
PID 672 wrote to memory of 3504 N/A C:\ProgramData\MgrSrvdrvcs\sysmtdrav.exe C:\Windows\system32\conhost.exe
PID 672 wrote to memory of 3504 N/A C:\ProgramData\MgrSrvdrvcs\sysmtdrav.exe C:\Windows\system32\conhost.exe
PID 672 wrote to memory of 3504 N/A C:\ProgramData\MgrSrvdrvcs\sysmtdrav.exe C:\Windows\system32\conhost.exe
PID 672 wrote to memory of 3504 N/A C:\ProgramData\MgrSrvdrvcs\sysmtdrav.exe C:\Windows\system32\conhost.exe
PID 672 wrote to memory of 3504 N/A C:\ProgramData\MgrSrvdrvcs\sysmtdrav.exe C:\Windows\system32\conhost.exe
PID 672 wrote to memory of 3504 N/A C:\ProgramData\MgrSrvdrvcs\sysmtdrav.exe C:\Windows\system32\conhost.exe
PID 672 wrote to memory of 3504 N/A C:\ProgramData\MgrSrvdrvcs\sysmtdrav.exe C:\Windows\system32\conhost.exe
PID 672 wrote to memory of 3504 N/A C:\ProgramData\MgrSrvdrvcs\sysmtdrav.exe C:\Windows\system32\conhost.exe
PID 672 wrote to memory of 3504 N/A C:\ProgramData\MgrSrvdrvcs\sysmtdrav.exe C:\Windows\system32\conhost.exe
PID 672 wrote to memory of 4252 N/A C:\ProgramData\MgrSrvdrvcs\sysmtdrav.exe C:\Windows\system32\dwm.exe
PID 672 wrote to memory of 4252 N/A C:\ProgramData\MgrSrvdrvcs\sysmtdrav.exe C:\Windows\system32\dwm.exe
PID 672 wrote to memory of 4252 N/A C:\ProgramData\MgrSrvdrvcs\sysmtdrav.exe C:\Windows\system32\dwm.exe
PID 672 wrote to memory of 4252 N/A C:\ProgramData\MgrSrvdrvcs\sysmtdrav.exe C:\Windows\system32\dwm.exe
PID 672 wrote to memory of 4252 N/A C:\ProgramData\MgrSrvdrvcs\sysmtdrav.exe C:\Windows\system32\dwm.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2025-05-19_17b1fefe4dfb2bc7dcb40ff27c26afa1_black-basta_cobalt-strike_hijackloader_satacom.exe

"C:\Users\Admin\AppData\Local\Temp\2025-05-19_17b1fefe4dfb2bc7dcb40ff27c26afa1_black-basta_cobalt-strike_hijackloader_satacom.exe"

C:\Users\Admin\AppData\Local\Temp\5F66.exe

"C:\Users\Admin\AppData\Local\Temp\5F66.exe"

C:\Users\Admin\AppData\Local\Temp\1899514754.exe

C:\Users\Admin\AppData\Local\Temp\1899514754.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\783416787.exe

C:\Users\Admin\AppData\Local\Temp\783416787.exe

C:\Users\Admin\AppData\Local\Temp\217642999.exe

C:\Users\Admin\AppData\Local\Temp\217642999.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
GB 2.18.27.76:443 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
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
UA 185.156.72.39:5151 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 20.72.235.82:80 www.update.microsoft.com tcp
KZ 2.132.93.195:40500 udp
DZ 41.98.200.30:40500 tcp
RU 188.17.69.62:40500 udp
IR 5.233.199.82:40500 udp
YE 134.35.166.30:40500 udp
YE 89.189.81.90:40500 udp
DZ 41.109.15.143:40500 udp
KZ 2.134.48.93:40500 tcp
IR 2.190.132.186:40500 udp
IR 176.102.248.115:40500 udp
IR 188.211.212.75:40500 udp
IR 46.100.5.20:40500 udp
IR 2.183.174.4:40500 udp
UZ 5.133.120.226:40500 tcp
RU 78.106.44.104:40500 udp
UZ 195.158.22.210:40500 udp
UZ 94.141.68.204:40500 udp
MX 187.234.179.35:40500 udp
RU 178.206.22.220:40500 udp
TR 78.185.169.232:40500 tcp

Files

C:\Users\Admin\AppData\Local\Temp\5F66.exe

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

C:\Users\Admin\AppData\Local\Temp\1899514754.exe

MD5 f30fdbf3448f67cbc3566f31729cb7a6
SHA1 fbf005c38f4a1c2e86817a2cb70406fc241f2c90
SHA256 81783b558904becc5b86553faba9525070de5f43339766eb1c025bcfbfe1eef8
SHA512 b428df2c8f8b4a002c8d7e1bfd9926e5cf95ee998688a2c360b8551e80be5bfbfa17ef210bea35f247da4a5c8a940fb5dba49f4786da9a74e5d001b771c8e9a8

C:\Users\Admin\AppData\Local\Temp\783416787.exe

MD5 c08cfa523c9377d3ae24fdb373b3ae13
SHA1 5289219770ad28b0fa4f0bdd91817f76bd6be222
SHA256 326c70a965d4e642275c26cd913e268b1db89edd59b31a86ee600a7a9c664eb0
SHA512 c91acd580ac832d5fed363a9a2b98b724a255d82e4fdda6eca62133feb5e60dd79a8caca36597a52bfbfa907a44208c48b15142e2e6020db219d14e970c3f57c

C:\Users\Admin\AppData\Local\Temp\217642999.exe

MD5 0000638ebbfe0d620abe6ca32abb1b58
SHA1 ae908681544765eb238e92b4ff7df26884692aa0
SHA256 267ec6176c1111d9ffcf32fcfa6aa65917e64d1556dcbbd8989ee6bbebc2e72f
SHA512 1522ed6c96d0a6699aaf5c1e6e3956742f26e8b46f2c795c0b6cfd3c02421aa6101134ded49c6b97e4085a789056cfb2d0fa09630c1c8796c7fc8d49aef66212

memory/3504-37-0x0000000140000000-0x000000014000D000-memory.dmp

memory/3504-40-0x0000000140000000-0x000000014000D000-memory.dmp

memory/4252-43-0x0000000140000000-0x0000000140835000-memory.dmp

memory/4252-42-0x0000000140000000-0x0000000140835000-memory.dmp

memory/4252-41-0x0000000140000000-0x0000000140835000-memory.dmp

memory/3504-36-0x0000000140000000-0x000000014000D000-memory.dmp

memory/3504-35-0x0000000140000000-0x000000014000D000-memory.dmp

memory/3504-34-0x0000000140000000-0x000000014000D000-memory.dmp

memory/3504-33-0x0000000140000000-0x000000014000D000-memory.dmp

memory/4252-45-0x0000000140000000-0x0000000140835000-memory.dmp

memory/4252-47-0x0000000140000000-0x0000000140835000-memory.dmp

memory/4252-49-0x0000000140000000-0x0000000140835000-memory.dmp

memory/4252-52-0x0000000140000000-0x0000000140835000-memory.dmp

memory/4252-51-0x0000000140000000-0x0000000140835000-memory.dmp

memory/4252-50-0x0000000140000000-0x0000000140835000-memory.dmp

memory/4252-48-0x000001C9054F0000-0x000001C905510000-memory.dmp

memory/4252-46-0x0000000140000000-0x0000000140835000-memory.dmp

memory/4252-44-0x0000000140000000-0x0000000140835000-memory.dmp

memory/4252-53-0x0000000140000000-0x0000000140835000-memory.dmp

memory/4252-55-0x0000000140000000-0x0000000140835000-memory.dmp

memory/4252-56-0x0000000140000000-0x0000000140835000-memory.dmp