phorphiex | 60b290310f67adb0ae186b4b938ca466a6b55653b2519261fa425127f5500a1f

max time kernel
143s
max time network
145s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03/09/2024, 13:51

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General

Target
Dropper/Phorphiex.exe
Size 143KB
Sample240903-q59avszclf
SHA256 90d3580e187b631a9150bbb4a640b84c6fa990437febdc42f687cc7b3ce1deac
MD5 b034e2a7cd76b757b7c62ce514b378b4
SHA1 27d15f36cb5e3338a19a7f6441ece58439f830f2
SHA512 1cea6503cf244e1efb6ef68994a723f549126fc89ef8a38c76cdcc050d2a4524e96402591d1d150d927a12dcac81084a8275a929cf6e5933fdf62502c9c84385
SSDEEP 3072:VMb/kbqjO/3FxV8l8wiEXHPV9r99rWhzAxH7wpjv4z:VMxo3Z8BvV9rL6h2H7wJ4
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

phorphiex discovery evasion loader persistence trojan upx worm

Malware Config

Signatures

Modifies Windows Defender Real-time Protection settings 3 TTPs 4 IoCs

evasion trojan

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify Tools

T1562.001

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection	wcfgmgr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	wcfgmgr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	wcfgmgr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	wcfgmgr32.exe

Phorphiex, Phorpiex
Phorphiex or Phorpiex Malware family which infects systems to distribute other malicious payloads such as ransomware, stealers and cryptominers.
worm trojan loader phorphiex

Windows security bypass 2 TTPs 6 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	wcfgmgr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	wcfgmgr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesOverride = "1"	wcfgmgr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1"	wcfgmgr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	wcfgmgr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	wcfgmgr32.exe

Executes dropped EXE 1 IoCs

pid	Process
1648	wcfgmgr32.exe

Loads dropped DLL 2 IoCs

pid	Process
2916	Phorphiex.exe
2916	Phorphiex.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral3/memory/2916-0-0x0000000000400000-0x0000000002CE4000-memory.dmp	upx
behavioral3/files/0x0009000000016c62-9.dat	upx

Windows security modification 2 TTPs 7 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1"	wcfgmgr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	wcfgmgr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	wcfgmgr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AutoUpdateDisableNotify = "1"	wcfgmgr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	wcfgmgr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	wcfgmgr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesOverride = "1"	wcfgmgr32.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\WCfgMgr32 = "C:\\Windows\\3049586940303040\\wcfgmgr32.exe"	Phorphiex.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\WCfgMgr32 = "C:\\Windows\\3049586940303040\\wcfgmgr32.exe"	Phorphiex.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\3049586940303040\wcfgmgr32.exe	Phorphiex.exe
File opened for modification	C:\Windows\3049586940303040\wcfgmgr32.exe	Phorphiex.exe
File opened for modification	C:\Windows\3049586940303040	Phorphiex.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Phorphiex.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wcfgmgr32.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2916 wrote to memory of 1648	2916	Phorphiex.exe	28
PID 2916 wrote to memory of 1648	2916	Phorphiex.exe	28
PID 2916 wrote to memory of 1648	2916	Phorphiex.exe	28
PID 2916 wrote to memory of 1648	2916	Phorphiex.exe	28

C:\Users\Admin\AppData\Local\Temp\Dropper\Phorphiex.exe
"C:\Users\Admin\AppData\Local\Temp\Dropper\Phorphiex.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2916
- C:\Windows\3049586940303040\wcfgmgr32.exe
  C:\Windows\3049586940303040\wcfgmgr32.exe
  2⤵
  - Modifies Windows Defender Real-time Protection settings
  - Windows security bypass
  - Executes dropped EXE
  - Windows security modification
  - System Location Discovery: System Language Discovery
  PID:1648

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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wcfgmgr32.exe

Path C:\Windows\3049586940303040\wcfgmgr32.exe
Size 143KB
SHA256 90d3580e187b631a9150bbb4a640b84c6fa990437febdc42f687cc7b3ce1deac
MD5 b034e2a7cd76b757b7c62ce514b378b4
SHA1 27d15f36cb5e3338a19a7f6441ece58439f830f2
SHA512 1cea6503cf244e1efb6ef68994a723f549126fc89ef8a38c76cdcc050d2a4524e96402591d1d150d927a12dcac81084a8275a929cf6e5933fdf62502c9c84385
SSDEEP 3072:VMb/kbqjO/3FxV8l8wiEXHPV9r99rWhzAxH7wpjv4z:VMxo3Z8BvV9rL6h2H7wJ4
MD5 SHA1 SHA512 SSDEEP

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memory/1648-15-0x0000000000400000-0x0000000002CE4000-memory.dmp

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memory/2916-0-0x0000000000400000-0x0000000002CE4000-memory.dmp

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memory/2916-2-0x0000000000400000-0x0000000002CE4000-memory.dmp

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memory/2916-12-0x0000000004AC0000-0x00000000073A4000-memory.dmp

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Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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