phorphiex | 84eaf3c48a49c2604f28a9b9ef6ce47df9aef7c8d1b7da710dd6c34d1a4d05ce

Analysis

max time kernel
118s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30-10-2024 13:35

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General

Target

84eaf3c48a49c2604f28a9b9ef6ce47df9aef7c8d1b7da710dd6c34d1a4d05ceN.exe
Size

10KB
MD5

005c3132eec6d97710f943f451006b50
SHA1

0729c5137b1df9c0cb6c6df783c3e9f601dd9a0e
SHA256

84eaf3c48a49c2604f28a9b9ef6ce47df9aef7c8d1b7da710dd6c34d1a4d05ce
SHA512

19610f2c10f2dcb8fb09bea9af2457ce74fed7ba7ab57186018112d9b7a23b686317724756a2a8ccbcc6e3c4620811702b03c47726149d5ac41a3c39cf677d0c
SSDEEP

96:SPX8jFyRW/k60KzTX7y8uQdtJDoy9+tQKdPiW0ffli/dq1JxGEh32qhlC7tCE5gI:SPXAyRl6BO8j9+6KBB/gJxTh3thW5gV

Score

10^/10

phorphiex discovery evasion execution loader persistence trojan worm

Malware Config

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
behavioral2/files/0x0008000000023c92-4.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\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
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

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
3152	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 computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	sysppvrdnvs.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	84eaf3c48a49c2604f28a9b9ef6ce47df9aef7c8d1b7da710dd6c34d1a4d05ceN.exe

Executes dropped EXE 2 IoCs

pid	Process
4124	13529.scr
632	sysppvrdnvs.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"	13529.scr

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\sysppvrdnvs.exe	13529.scr
File opened for modification	C:\Windows\sysppvrdnvs.exe	13529.scr

Launches sc.exe 5 IoCs

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

pid	Process
4792	sc.exe
1724	sc.exe
1160	sc.exe
2536	sc.exe
2716	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 11 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	cmd.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	13529.scr
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sysppvrdnvs.exe
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	84eaf3c48a49c2604f28a9b9ef6ce47df9aef7c8d1b7da710dd6c34d1a4d05ceN.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3152	powershell.exe
3152	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3152	powershell.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2216 wrote to memory of 4124	2216	84eaf3c48a49c2604f28a9b9ef6ce47df9aef7c8d1b7da710dd6c34d1a4d05ceN.exe	95
PID 2216 wrote to memory of 4124	2216	84eaf3c48a49c2604f28a9b9ef6ce47df9aef7c8d1b7da710dd6c34d1a4d05ceN.exe	95
PID 2216 wrote to memory of 4124	2216	84eaf3c48a49c2604f28a9b9ef6ce47df9aef7c8d1b7da710dd6c34d1a4d05ceN.exe	95
PID 4124 wrote to memory of 632	4124	13529.scr	96
PID 4124 wrote to memory of 632	4124	13529.scr	96
PID 4124 wrote to memory of 632	4124	13529.scr	96
PID 632 wrote to memory of 1704	632	sysppvrdnvs.exe	99
PID 632 wrote to memory of 1704	632	sysppvrdnvs.exe	99
PID 632 wrote to memory of 1704	632	sysppvrdnvs.exe	99
PID 632 wrote to memory of 640	632	sysppvrdnvs.exe	101
PID 632 wrote to memory of 640	632	sysppvrdnvs.exe	101
PID 632 wrote to memory of 640	632	sysppvrdnvs.exe	101
PID 1704 wrote to memory of 3152	1704	cmd.exe	103
PID 1704 wrote to memory of 3152	1704	cmd.exe	103
PID 1704 wrote to memory of 3152	1704	cmd.exe	103
PID 640 wrote to memory of 1724	640	cmd.exe	104
PID 640 wrote to memory of 1724	640	cmd.exe	104
PID 640 wrote to memory of 1724	640	cmd.exe	104
PID 640 wrote to memory of 1160	640	cmd.exe	105
PID 640 wrote to memory of 1160	640	cmd.exe	105
PID 640 wrote to memory of 1160	640	cmd.exe	105
PID 640 wrote to memory of 2536	640	cmd.exe	106
PID 640 wrote to memory of 2536	640	cmd.exe	106
PID 640 wrote to memory of 2536	640	cmd.exe	106
PID 640 wrote to memory of 2716	640	cmd.exe	107
PID 640 wrote to memory of 2716	640	cmd.exe	107
PID 640 wrote to memory of 2716	640	cmd.exe	107
PID 640 wrote to memory of 4792	640	cmd.exe	108
PID 640 wrote to memory of 4792	640	cmd.exe	108
PID 640 wrote to memory of 4792	640	cmd.exe	108

C:\Users\Admin\AppData\Local\Temp\84eaf3c48a49c2604f28a9b9ef6ce47df9aef7c8d1b7da710dd6c34d1a4d05ceN.exe
"C:\Users\Admin\AppData\Local\Temp\84eaf3c48a49c2604f28a9b9ef6ce47df9aef7c8d1b7da710dd6c34d1a4d05ceN.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2216
- C:\Users\Admin\AppData\Local\Temp\13529.scr
  "C:\Users\Admin\AppData\Local\Temp\13529.scr" /S
  2⤵
  - 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:4124
- - C:\Windows\sysppvrdnvs.exe
    C:\Windows\sysppvrdnvs.exe
    3⤵
    - Modifies security service
    - Windows security bypass
    - Checks computer location settings
    - Executes dropped EXE
    - Windows security modification
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:632
  - - 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"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:1704
    - - 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"
        5⤵
        Command and Scripting Interpreter: PowerShell
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:3152
  - - 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
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:640
    - - C:\Windows\SysWOW64\sc.exe
        
        sc stop UsoSvc
        5⤵
        Launches sc.exe
        System Location Discovery: System Language Discovery
        
        PID:1724
    - - C:\Windows\SysWOW64\sc.exe
        
        sc stop WaaSMedicSvc
        5⤵
        Launches sc.exe
        System Location Discovery: System Language Discovery
        
        PID:1160
    - - C:\Windows\SysWOW64\sc.exe
        
        sc stop wuauserv
        5⤵
        Launches sc.exe
        System Location Discovery: System Language Discovery
        
        PID:2536
    - - C:\Windows\SysWOW64\sc.exe
        
        sc stop DoSvc
        5⤵
        Launches sc.exe
        System Location Discovery: System Language Discovery
        
        PID:2716
    - - C:\Windows\SysWOW64\sc.exe
        
        sc stop BITS /wait
        5⤵
        Launches sc.exe
        System Location Discovery: System Language Discovery
        
        PID:4792

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

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

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\13529.scr

Filesize
83KB

MD5
06560b5e92d704395bc6dae58bc7e794

SHA1
fbd3e4ae28620197d1f02bfc24adaf4ddacd2372

SHA256
9eaaadf3857e4a3e83f4f78d96ab185213b6528c8e470807f9d16035daadf33d

SHA512
b55b49fc1bd526c47d88fcf8a20fcaed900bfb291f2e3e1186ec196a87127ed24df71385ae04fedcc802c362c4ebf38edfc182013febf4496ddeb66ce5195ee3

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ilp0r0e1.rhf.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3152-30-0x0000000006D80000-0x0000000006DB2000-memory.dmp

Filesize
200KB

Download
memory/3152-42-0x0000000007A80000-0x0000000007B23000-memory.dmp

Filesize
652KB

Download
memory/3152-16-0x0000000006100000-0x0000000006166000-memory.dmp

Filesize
408KB

Download
memory/3152-14-0x00000000058A0000-0x0000000005EC8000-memory.dmp

Filesize
6.2MB

Download
memory/3152-17-0x0000000006170000-0x00000000061D6000-memory.dmp

Filesize
408KB

Download
memory/3152-27-0x00000000061E0000-0x0000000006534000-memory.dmp

Filesize
3.3MB

Download
memory/3152-28-0x00000000067A0000-0x00000000067BE000-memory.dmp

Filesize
120KB

Download
memory/3152-29-0x00000000067F0000-0x000000000683C000-memory.dmp

Filesize
304KB

Download
memory/3152-13-0x00000000031E0000-0x0000000003216000-memory.dmp

Filesize
216KB

Download
memory/3152-31-0x000000006F920000-0x000000006F96C000-memory.dmp

Filesize
304KB

Download
memory/3152-41-0x0000000006DC0000-0x0000000006DDE000-memory.dmp

Filesize
120KB

Download
memory/3152-15-0x0000000005800000-0x0000000005822000-memory.dmp

Filesize
136KB

Download
memory/3152-43-0x00000000081B0000-0x000000000882A000-memory.dmp

Filesize
6.5MB

Download
memory/3152-44-0x0000000006EC0000-0x0000000006EDA000-memory.dmp

Filesize
104KB

Download
memory/3152-45-0x0000000007B50000-0x0000000007B5A000-memory.dmp

Filesize
40KB

Download
memory/3152-46-0x0000000007D60000-0x0000000007DF6000-memory.dmp

Filesize
600KB

Download
memory/3152-47-0x0000000007CF0000-0x0000000007D01000-memory.dmp

Filesize
68KB

Download
memory/3152-48-0x0000000007D20000-0x0000000007D2E000-memory.dmp

Filesize
56KB

Download
memory/3152-49-0x0000000007D30000-0x0000000007D44000-memory.dmp

Filesize
80KB

Download
memory/3152-50-0x0000000007E20000-0x0000000007E3A000-memory.dmp

Filesize
104KB

Download
memory/3152-51-0x0000000007E00000-0x0000000007E08000-memory.dmp

Filesize
32KB

Download