phorphiex | 60b290310f67adb0ae186b4b938ca466a6b55653b2519261fa425127f5500a1f

Resubmissions

12-09-2024 02:23

240912-cvfznswere 10

04-09-2024 00:09

240904-afvheascla 10

03-09-2024 18:57

240903-xl8csavfrb 10

03-09-2024 18:12

240903-ws828asgnm 10

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03-09-2024 18:12

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General

Target

Dropper/Phorphiex.exe
Size

143KB
MD5

b034e2a7cd76b757b7c62ce514b378b4
SHA1

27d15f36cb5e3338a19a7f6441ece58439f830f2
SHA256

90d3580e187b631a9150bbb4a640b84c6fa990437febdc42f687cc7b3ce1deac
SHA512

1cea6503cf244e1efb6ef68994a723f549126fc89ef8a38c76cdcc050d2a4524e96402591d1d150d927a12dcac81084a8275a929cf6e5933fdf62502c9c84385
SSDEEP

3072:VMb/kbqjO/3FxV8l8wiEXHPV9r99rWhzAxH7wpjv4z:VMxo3Z8BvV9rL6h2H7wJ4

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

Processes:

wcfgmgr32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection	wcfgmgr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	wcfgmgr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	wcfgmgr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\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

Processes:

wcfgmgr32.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "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
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

Executes dropped EXE 1 IoCs

Processes:

wcfgmgr32.exe

pid process

4620 wcfgmgr32.exe

pid	process
4620	wcfgmgr32.exe

UPX packed file 3 IoCs

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

upx

Processes:

resource	yara_rule
behavioral4/memory/4444-0-0x0000000000400000-0x0000000002CE4000-memory.dmp	upx
C:\Windows\3049586940303040\wcfgmgr32.exe	upx
behavioral4/memory/4620-9-0x0000000000400000-0x0000000002CE4000-memory.dmp	upx

Windows security modification 2 TTPs 7 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

wcfgmgr32.exe

description	ioc	process
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
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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

Phorphiex.exe

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-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WCfgMgr32 = "C:\\Windows\\3049586940303040\\wcfgmgr32.exe"	Phorphiex.exe

Drops file in Windows directory 3 IoCs

Processes:

Phorphiex.exe

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

Processes:

Phorphiex.exewcfgmgr32.exe

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 3 IoCs

Processes:

Phorphiex.exe

description	pid	process	target process
PID 4444 wrote to memory of 4620	4444	Phorphiex.exe	wcfgmgr32.exe
PID 4444 wrote to memory of 4620	4444	Phorphiex.exe	wcfgmgr32.exe
PID 4444 wrote to memory of 4620	4444	Phorphiex.exe	wcfgmgr32.exe

C:\Users\Admin\AppData\Local\Temp\Dropper\Phorphiex.exe
"C:\Users\Admin\AppData\Local\Temp\Dropper\Phorphiex.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4444
- 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:4620

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

Replay Monitor

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Downloads

C:\Windows\3049586940303040\wcfgmgr32.exe

Filesize
143KB

MD5
b034e2a7cd76b757b7c62ce514b378b4

SHA1
27d15f36cb5e3338a19a7f6441ece58439f830f2

SHA256
90d3580e187b631a9150bbb4a640b84c6fa990437febdc42f687cc7b3ce1deac

SHA512
1cea6503cf244e1efb6ef68994a723f549126fc89ef8a38c76cdcc050d2a4524e96402591d1d150d927a12dcac81084a8275a929cf6e5933fdf62502c9c84385

Download Submit
memory/4444-0-0x0000000000400000-0x0000000002CE4000-memory.dmp

Filesize
40.9MB

Download
memory/4444-2-0x0000000003060000-0x0000000003160000-memory.dmp

Filesize
1024KB

Download
memory/4444-3-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/4444-12-0x0000000000400000-0x0000000002CE4000-memory.dmp

Filesize
40.9MB

Download
memory/4620-9-0x0000000000400000-0x0000000002CE4000-memory.dmp

Filesize
40.9MB

Download
memory/4620-13-0x0000000000400000-0x0000000002CE4000-memory.dmp

Filesize
40.9MB

Download