phorphiex | 03b16b9e811ea1555088c297c76c2db0f29ba2a033bb8372dc53ed55145b0ba0

Analysis

max time kernel
119s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
31-10-2024 12:41

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General

Target

03b16b9e811ea1555088c297c76c2db0f29ba2a033bb8372dc53ed55145b0ba0N.exe
Size

3.0MB
MD5

3a0246fc936086c7f7af0de111e80f80
SHA1

d1854b6eb1667413ca1b804c9b905704ee22b218
SHA256

03b16b9e811ea1555088c297c76c2db0f29ba2a033bb8372dc53ed55145b0ba0
SHA512

fd2df6200fc58adca95a0e9d9a5cbdbfe6e9f86025996573b17eef61d2782aec815c87fa6587302736baf8ff68026281db44b9c1d88df3c961ba4a2310cc619d
SSDEEP

24576:dqCDhrF3CaoePLagQfzT+cWx/Cu1Dl33wb1ajC4Ky3xyuTSvA7sW3:dqCf3CafagQrTxWNCuDHwb0X3nOogU

Score

10^/10

phorphiex bootkit discovery evasion execution loader persistence trojan worm

Malware Config

Extracted

Family

phorphiex

http://185.215.113.66/

http://91.202.233.141/

Wallets

0xCa90599132C4D88907Bd8E046540284aa468a035

TRuGGXNDM1cavQ1AqMQHG8yfxP4QWVSMN6

qph44jx8r9k5xeq5cuf958krv3ewrnp5vc6hhdjd3r

XryzFMFVpDUvU7famUGf214EXD3xNUSmQf

rsXCXBf9SagxV8JfC12d8Bybk84oPdMNN9

AULzfBuUAPfCGAXoG5Vq14aP9s6fx3AH4Z

LTK4xdKPAgFHPLan8kriAD7eY4heyy73mB

MP8GEm8QpYgQYaMo8oM5NQhRBgDGiLZW5Q

4BB7ckkaPTyADc8trtuwDoZxywaR4eNL5cDJ3KBjq9GraN4mUFztf7mLS7WgT7Bh7uPqpjvA4ypVwXKCJ1vvLWWAFvSmDoD

15TssKwtjMtwy4vDLcLsQUZUD2B9f7eDjw85sBNVC5LRPPnC

1BzmrjmKPKSR2hH5BeJySfiVA676E8DYaK

ltc1qt0n3f0t7vz9k0mvcswk477shrxwjhf9sj5ykrp

3PMiLynrGVZ8oEqvoqC4hXD67B1WoALR4pc

3ESHude8zUHksQg1h6hHmzY79BS36L91Yn

DLUzwvyxN1RrwjByUPPzVMdfxNRPGVRMMA

t1J6GCPCiHW1eRdjJgDDu6b1vSVmL5U7Twh

stars125f3mw4xd9htpsq4zj5w5ezm5gags37yxxh6mj

bnb1msyt0djx4ecspfxg5en0ye465kg3kmv9utzml2

bc1ppypcmu3684n648gyj62gjp2rw0xy7w3vwfamatlg29ajp4z52desafa0sr

bc1qc9edl4hzl9jyt8twdad3zjeh2df2znq96tdezd

Attributes

mutex
mmn7nnm8na
user_agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Signatures

Modifies security service 2 TTPs 1 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wuauserv\Start = "4"	sysppvrdnvs.exe

Phorphiex family
phorphiex

Phorphiex payload 1 IoCs

resource	yara_rule
behavioral1/files/0x0007000000019234-10.dat	family_phorphiex

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

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
684	powershell.exe

Downloads MZ/PE file
Stops running service(s) 4 TTPs
evasion execution

Windows Service
T1543.003

Impair Defenses
T1562

Service Stop
T1489

Service Execution
T1569.002

Checks BIOS information in registry 2 TTPs 1 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	03b16b9e811ea1555088c297c76c2db0f29ba2a033bb8372dc53ed55145b0ba0N.exe

Executes dropped EXE 3 IoCs

pid	Process
2816	B1E1.exe
2912	1135112757.exe
1888	sysppvrdnvs.exe

Loads dropped DLL 3 IoCs

pid	Process
1292	03b16b9e811ea1555088c297c76c2db0f29ba2a033bb8372dc53ed55145b0ba0N.exe
2816	B1E1.exe
2816	B1E1.exe

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

Adds Run key to start application 2 TTPs 1 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\Windows Settings = "C:\\Windows\\sysppvrdnvs.exe"	1135112757.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PHYSICALDRIVE0	03b16b9e811ea1555088c297c76c2db0f29ba2a033bb8372dc53ed55145b0ba0N.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\checkwritepermissions.exe	03b16b9e811ea1555088c297c76c2db0f29ba2a033bb8372dc53ed55145b0ba0N.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\sysppvrdnvs.exe	1135112757.exe
File opened for modification	C:\Windows\sysppvrdnvs.exe	1135112757.exe

Launches sc.exe 5 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
1112	sc.exe
2728	sc.exe
1048	sc.exe
2632	sc.exe
1684	sc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 12 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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sysppvrdnvs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	03b16b9e811ea1555088c297c76c2db0f29ba2a033bb8372dc53ed55145b0ba0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	B1E1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1135112757.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	03b16b9e811ea1555088c297c76c2db0f29ba2a033bb8372dc53ed55145b0ba0N.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	03b16b9e811ea1555088c297c76c2db0f29ba2a033bb8372dc53ed55145b0ba0N.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	03b16b9e811ea1555088c297c76c2db0f29ba2a033bb8372dc53ed55145b0ba0N.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
684	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	684	powershell.exe

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 1292 wrote to memory of 2816	1292	03b16b9e811ea1555088c297c76c2db0f29ba2a033bb8372dc53ed55145b0ba0N.exe	31
PID 1292 wrote to memory of 2816	1292	03b16b9e811ea1555088c297c76c2db0f29ba2a033bb8372dc53ed55145b0ba0N.exe	31
PID 1292 wrote to memory of 2816	1292	03b16b9e811ea1555088c297c76c2db0f29ba2a033bb8372dc53ed55145b0ba0N.exe	31
PID 1292 wrote to memory of 2816	1292	03b16b9e811ea1555088c297c76c2db0f29ba2a033bb8372dc53ed55145b0ba0N.exe	31
PID 2816 wrote to memory of 2912	2816	B1E1.exe	34
PID 2816 wrote to memory of 2912	2816	B1E1.exe	34
PID 2816 wrote to memory of 2912	2816	B1E1.exe	34
PID 2816 wrote to memory of 2912	2816	B1E1.exe	34
PID 2912 wrote to memory of 1888	2912	1135112757.exe	35
PID 2912 wrote to memory of 1888	2912	1135112757.exe	35
PID 2912 wrote to memory of 1888	2912	1135112757.exe	35
PID 2912 wrote to memory of 1888	2912	1135112757.exe	35
PID 1888 wrote to memory of 2700	1888	sysppvrdnvs.exe	36
PID 1888 wrote to memory of 2700	1888	sysppvrdnvs.exe	36
PID 1888 wrote to memory of 2700	1888	sysppvrdnvs.exe	36
PID 1888 wrote to memory of 2700	1888	sysppvrdnvs.exe	36
PID 1888 wrote to memory of 1812	1888	sysppvrdnvs.exe	37
PID 1888 wrote to memory of 1812	1888	sysppvrdnvs.exe	37
PID 1888 wrote to memory of 1812	1888	sysppvrdnvs.exe	37
PID 1888 wrote to memory of 1812	1888	sysppvrdnvs.exe	37
PID 2700 wrote to memory of 684	2700	cmd.exe	41
PID 2700 wrote to memory of 684	2700	cmd.exe	41
PID 2700 wrote to memory of 684	2700	cmd.exe	41
PID 2700 wrote to memory of 684	2700	cmd.exe	41
PID 1812 wrote to memory of 2632	1812	cmd.exe	40
PID 1812 wrote to memory of 2632	1812	cmd.exe	40
PID 1812 wrote to memory of 2632	1812	cmd.exe	40
PID 1812 wrote to memory of 2632	1812	cmd.exe	40
PID 1812 wrote to memory of 1684	1812	cmd.exe	42
PID 1812 wrote to memory of 1684	1812	cmd.exe	42
PID 1812 wrote to memory of 1684	1812	cmd.exe	42
PID 1812 wrote to memory of 1684	1812	cmd.exe	42
PID 1812 wrote to memory of 1112	1812	cmd.exe	43
PID 1812 wrote to memory of 1112	1812	cmd.exe	43
PID 1812 wrote to memory of 1112	1812	cmd.exe	43
PID 1812 wrote to memory of 1112	1812	cmd.exe	43
PID 1812 wrote to memory of 2728	1812	cmd.exe	44
PID 1812 wrote to memory of 2728	1812	cmd.exe	44
PID 1812 wrote to memory of 2728	1812	cmd.exe	44
PID 1812 wrote to memory of 2728	1812	cmd.exe	44
PID 1812 wrote to memory of 1048	1812	cmd.exe	45
PID 1812 wrote to memory of 1048	1812	cmd.exe	45
PID 1812 wrote to memory of 1048	1812	cmd.exe	45
PID 1812 wrote to memory of 1048	1812	cmd.exe	45

C:\Users\Admin\AppData\Local\Temp\03b16b9e811ea1555088c297c76c2db0f29ba2a033bb8372dc53ed55145b0ba0N.exe
"C:\Users\Admin\AppData\Local\Temp\03b16b9e811ea1555088c297c76c2db0f29ba2a033bb8372dc53ed55145b0ba0N.exe"
1⤵
- Checks BIOS information in registry
- Loads dropped DLL
- Writes to the Master Boot Record (MBR)
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- Suspicious use of WriteProcessMemory
PID:1292
- C:\Users\Admin\AppData\Local\Temp\B1E1.exe
  "C:\Users\Admin\AppData\Local\Temp\B1E1.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2816
- - C:\Users\Admin\AppData\Local\Temp\1135112757.exe
    C:\Users\Admin\AppData\Local\Temp\1135112757.exe
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2912
  - - C:\Windows\sysppvrdnvs.exe
      C:\Windows\sysppvrdnvs.exe
      4⤵
      Modifies security service
      Windows security bypass
      Executes dropped EXE
      Windows security modification
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:1888
    - - C:\Windows\SysWOW64\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /c powershell -Command "Add-MpPreference -ExclusionPath $env:windir; Add-MpPreference -ExclusionPath $env:TEMP; Add-MpPreference -ExclusionPath $env:USERPROFILE"
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:2700
      - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        
        powershell -Command "Add-MpPreference -ExclusionPath $env:windir; Add-MpPreference -ExclusionPath $env:TEMP; Add-MpPreference -ExclusionPath $env:USERPROFILE"
        6⤵
        Command and Scripting Interpreter: PowerShell
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:684
    - - C:\Windows\SysWOW64\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /c sc stop UsoSvc & sc stop WaaSMedicSvc & sc stop wuauserv & sc stop DoSvc & sc stop BITS /wait
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:1812
      - C:\Windows\SysWOW64\sc.exe
        
        sc stop UsoSvc
        6⤵
        Launches sc.exe
        System Location Discovery: System Language Discovery
        
        PID:2632
      - C:\Windows\SysWOW64\sc.exe
        
        sc stop WaaSMedicSvc
        6⤵
        Launches sc.exe
        System Location Discovery: System Language Discovery
        
        PID:1684
      - C:\Windows\SysWOW64\sc.exe
        
        sc stop wuauserv
        6⤵
        Launches sc.exe
        System Location Discovery: System Language Discovery
        
        PID:1112
      - C:\Windows\SysWOW64\sc.exe
        
        sc stop DoSvc
        6⤵
        Launches sc.exe
        System Location Discovery: System Language Discovery
        
        PID:2728
      - C:\Windows\SysWOW64\sc.exe
        
        sc stop BITS /wait
        6⤵
        Launches sc.exe
        System Location Discovery: System Language Discovery
        
        PID:1048

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Pre-OS Boot

T1542

Bootkit

T1542.003

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

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Service Stop

T1489

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Downloads

C:\Users\Admin\AppData\Local\Temp\B1E1.exe

Filesize
9KB

MD5
8d8e6c7952a9dc7c0c73911c4dbc5518

SHA1
9098da03b33b2c822065b49d5220359c275d5e94

SHA256
feb4c3ae4566f0acbb9e0f55417b61fefd89dc50a4e684df780813fb01d61278

SHA512
91a573843c28dd32a9f31a60ba977f9a3d4bb19ffd1b7254333e09bcecef348c1b3220a348ebb2cb08edb57d56cb7737f026519da52199c9dc62c10aea236645

Download Submit
\Users\Admin\AppData\Local\Temp\1135112757.exe

Filesize
83KB

MD5
06560b5e92d704395bc6dae58bc7e794

SHA1
fbd3e4ae28620197d1f02bfc24adaf4ddacd2372

SHA256
9eaaadf3857e4a3e83f4f78d96ab185213b6528c8e470807f9d16035daadf33d

SHA512
b55b49fc1bd526c47d88fcf8a20fcaed900bfb291f2e3e1186ec196a87127ed24df71385ae04fedcc802c362c4ebf38edfc182013febf4496ddeb66ce5195ee3

Download Submit