phorphiex | d4bbc125a9e94de44f4deea9d6b10adc87a1ec1aedd753b39d26bb15817fdadb

Analysis

max time kernel
150s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03/10/2024, 15:51

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General

Target
D4BBC125A9E94DE44F4DEEA9D6B10ADC87A1EC1AEDD753B39D26BB15817FDADB.exe
Size 107KB
Sample241003-tagtxaxale
SHA256 d4bbc125a9e94de44f4deea9d6b10adc87a1ec1aedd753b39d26bb15817fdadb
MD5 f437204b3e1627d8b03eefdf360281ad
SHA1 c824e787a9786d5fdd19effdec54abef217e5b39
SHA512 bdb6fc7d1e7f61df6a7ff3036fd56793e1096937fb07fbe033692f20de1bc81ca0215c5eff5a21627607c1ca514296d9598490c244bba5ec60c74653e1978910
SSDEEP 1536:HBlri9Fmav82fMJsznUMPcPfNthq4HC1xaQaQG9MFiL3:hp7O3MizVGlt7SZFiL3
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

phorphiex 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
15TssKwtjMtwy4vDLcLsQUZUD2B9f7eDjw85sBNVC5LRPPnC
1BzmrjmKPKSR2hH5BeJySfiVA676E8DYaK
ltc1qt0n3f0t7vz9k0mvcswk477shrxwjhf9sj5ykrp
3PMiLynrGVZ8oEqvoqC4hXD67B1WoALR4pc
3BiS1jaRpWtkqtfZGp9f1rXXts5DyUkaBX
DLUzwvyxN1RrwjByUPPzVMdfxNRPGVRMMA
t1J6GCPCiHW1eRdjJgDDu6b1vSVmL5U7Twh
stars125f3mw4xd9htpsq4zj5w5ezm5gags37yxxh6mj
bnb1msyt0djx4ecspfxg5en0ye465kg3kmv9utzml2
bc1ppypcmu3684n648gyj62gjp2rw0xy7w3vwfamatlg29ajp4z52desafa0sr
bc1qc9edl4hzl9jyt8twdad3zjeh2df2znq96tdezd
bitcoincash:qph44jx8r9k5xeq5cuf958krv3ewrnp5vc6hhdjd3r
GBQJMXYXPRIWFMXIFJR35ZB7LRKMB4PHCIUAUFR3TKUL6RDBZVLZEUJ3

Attributes

mutex
x877d7osne
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"	sysblvrvcr.exe

Phorphiex payload 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023445-3.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\FirewallOverride = "1"	sysblvrvcr.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	sysblvrvcr.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	sysblvrvcr.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	sysblvrvcr.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1"	sysblvrvcr.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	sysblvrvcr.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
4696	powershell.exe

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 1 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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	sysblvrvcr.exe

Executes dropped EXE 2 IoCs

pid	Process
1292	sysblvrvcr.exe
2796	1787226207.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\AntiVirusOverride = "1"	sysblvrvcr.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	sysblvrvcr.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1"	sysblvrvcr.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	sysblvrvcr.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	sysblvrvcr.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	sysblvrvcr.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiSpywareOverride = "1"	sysblvrvcr.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\\sysblvrvcr.exe"	D4BBC125A9E94DE44F4DEEA9D6B10ADC87A1EC1AEDD753B39D26BB15817FDADB.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\sysblvrvcr.exe	D4BBC125A9E94DE44F4DEEA9D6B10ADC87A1EC1AEDD753B39D26BB15817FDADB.exe
File opened for modification	C:\Windows\sysblvrvcr.exe	D4BBC125A9E94DE44F4DEEA9D6B10ADC87A1EC1AEDD753B39D26BB15817FDADB.exe

Launches sc.exe 5 IoCs

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

pid	Process
2132	sc.exe
1908	sc.exe
824	sc.exe
2144	sc.exe
1904	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 10 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	sysblvrvcr.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	D4BBC125A9E94DE44F4DEEA9D6B10ADC87A1EC1AEDD753B39D26BB15817FDADB.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4696	powershell.exe
4696	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4696	powershell.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 400 wrote to memory of 1292	400	D4BBC125A9E94DE44F4DEEA9D6B10ADC87A1EC1AEDD753B39D26BB15817FDADB.exe	82
PID 400 wrote to memory of 1292	400	D4BBC125A9E94DE44F4DEEA9D6B10ADC87A1EC1AEDD753B39D26BB15817FDADB.exe	82
PID 400 wrote to memory of 1292	400	D4BBC125A9E94DE44F4DEEA9D6B10ADC87A1EC1AEDD753B39D26BB15817FDADB.exe	82
PID 1292 wrote to memory of 3936	1292	sysblvrvcr.exe	83
PID 1292 wrote to memory of 3936	1292	sysblvrvcr.exe	83
PID 1292 wrote to memory of 3936	1292	sysblvrvcr.exe	83
PID 1292 wrote to memory of 4808	1292	sysblvrvcr.exe	85
PID 1292 wrote to memory of 4808	1292	sysblvrvcr.exe	85
PID 1292 wrote to memory of 4808	1292	sysblvrvcr.exe	85
PID 3936 wrote to memory of 4696	3936	cmd.exe	87
PID 3936 wrote to memory of 4696	3936	cmd.exe	87
PID 3936 wrote to memory of 4696	3936	cmd.exe	87
PID 4808 wrote to memory of 824	4808	cmd.exe	88
PID 4808 wrote to memory of 824	4808	cmd.exe	88
PID 4808 wrote to memory of 824	4808	cmd.exe	88
PID 4808 wrote to memory of 2144	4808	cmd.exe	89
PID 4808 wrote to memory of 2144	4808	cmd.exe	89
PID 4808 wrote to memory of 2144	4808	cmd.exe	89
PID 4808 wrote to memory of 1904	4808	cmd.exe	90
PID 4808 wrote to memory of 1904	4808	cmd.exe	90
PID 4808 wrote to memory of 1904	4808	cmd.exe	90
PID 4808 wrote to memory of 2132	4808	cmd.exe	91
PID 4808 wrote to memory of 2132	4808	cmd.exe	91
PID 4808 wrote to memory of 2132	4808	cmd.exe	91
PID 4808 wrote to memory of 1908	4808	cmd.exe	92
PID 4808 wrote to memory of 1908	4808	cmd.exe	92
PID 4808 wrote to memory of 1908	4808	cmd.exe	92
PID 1292 wrote to memory of 2796	1292	sysblvrvcr.exe	95
PID 1292 wrote to memory of 2796	1292	sysblvrvcr.exe	95

C:\Users\Admin\AppData\Local\Temp\D4BBC125A9E94DE44F4DEEA9D6B10ADC87A1EC1AEDD753B39D26BB15817FDADB.exe
"C:\Users\Admin\AppData\Local\Temp\D4BBC125A9E94DE44F4DEEA9D6B10ADC87A1EC1AEDD753B39D26BB15817FDADB.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:400
- C:\Windows\sysblvrvcr.exe
  C:\Windows\sysblvrvcr.exe
  2⤵
  - 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:1292
- - 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"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3936
  - - 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"
      4⤵
      Command and Scripting Interpreter: PowerShell
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4696
- - 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
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4808
  - - C:\Windows\SysWOW64\sc.exe
      sc stop UsoSvc
      4⤵
      Launches sc.exe
      System Location Discovery: System Language Discovery
      PID:824
  - - C:\Windows\SysWOW64\sc.exe
      sc stop WaaSMedicSvc
      4⤵
      Launches sc.exe
      System Location Discovery: System Language Discovery
      PID:2144
  - - C:\Windows\SysWOW64\sc.exe
      sc stop wuauserv
      4⤵
      Launches sc.exe
      System Location Discovery: System Language Discovery
      PID:1904
  - - C:\Windows\SysWOW64\sc.exe
      sc stop DoSvc
      4⤵
      Launches sc.exe
      System Location Discovery: System Language Discovery
      PID:2132
  - - C:\Windows\SysWOW64\sc.exe
      sc stop BITS /wait
      4⤵
      Launches sc.exe
      System Location Discovery: System Language Discovery
      PID:1908
- - C:\Users\Admin\AppData\Local\Temp\1787226207.exe
    C:\Users\Admin\AppData\Local\Temp\1787226207.exe
    3⤵
    - Executes dropped EXE
    PID:2796
  - - C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c reg delete "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "Windows Upgrade Manager" /f
      4⤵
      PID:3040
  - - C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /delete /f /tn "Windows Upgrade Manager"
      4⤵
      PID:2132

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

1[1]

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\THHXO5RX\1[1]
Size 108KB
SHA256 84652bb8c63ca4fd7eb7a2d6ef44029801f3057aa2961867245a3a765928dd02
MD5 1fcb78fb6cf9720e9d9494c42142d885
SHA1 fef9c2e728ab9d56ce9ed28934b3182b6f1d5379
SHA512 cdf58e463af1784aea86995b3e5d6b07701c5c4095e30ec80cc901ffd448c6f4f714c521bf8796ffa8c47538bf8bf5351e157596efaa7ab88155d63dc33f7dc3
SSDEEP 3072:LFQC4AbS79Bo0bTtS3v4P09loyBE7QXNn8IJrF:LFQC4A+7jfiw8HoyYQXdXF
MD5 SHA1 SHA512 SSDEEP

Submit Download

1787226207.exe

Path C:\Users\Admin\AppData\Local\Temp\1787226207.exe
Size 8KB
SHA256 5850892f67f85991b31fc90f62c8b7791afeb3c08ae1877d857aa2b59471a2ea
MD5 cb8420e681f68db1bad5ed24e7b22114
SHA1 416fc65d538d3622f5ca71c667a11df88a927c31
SHA512 baaabcc4ad5d409267a34ed7b20e4afb4d247974bfc581d39aae945e5bf8a673a1f8eacae2e6783480c8baaeb0a80d028274a202d456f13d0af956afa0110fdf
SSDEEP 192:Otk3w0++KjlRC5vVkDlBj9k2cugyJBLCsZ:OEYjlRAGlBj9kSgiLC0
MD5 SHA1 SHA512 SSDEEP

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__PSScriptPolicyTest_ch2jyrun.55d.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ch2jyrun.55d.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

Submit Download

sysblvrvcr.exe

Path C:\Windows\sysblvrvcr.exe
Size 107KB
SHA256 d4bbc125a9e94de44f4deea9d6b10adc87a1ec1aedd753b39d26bb15817fdadb
MD5 f437204b3e1627d8b03eefdf360281ad
SHA1 c824e787a9786d5fdd19effdec54abef217e5b39
SHA512 bdb6fc7d1e7f61df6a7ff3036fd56793e1096937fb07fbe033692f20de1bc81ca0215c5eff5a21627607c1ca514296d9598490c244bba5ec60c74653e1978910
SSDEEP 1536:HBlri9Fmav82fMJsznUMPcPfNthq4HC1xaQaQG9MFiL3:hp7O3MizVGlt7SZFiL3
MD5 SHA1 SHA512 SSDEEP

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memory/2796-65-0x0000000000290000-0x0000000000296000-memory.dmp

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memory/4696-33-0x0000000006F00000-0x0000000006F1E000-memory.dmp

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memory/4696-37-0x00000000070D0000-0x00000000070DA000-memory.dmp

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memory/4696-19-0x0000000005730000-0x0000000005A84000-memory.dmp

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memory/4696-20-0x0000000005D20000-0x0000000005D3E000-memory.dmp

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memory/4696-21-0x0000000005DC0000-0x0000000005E0C000-memory.dmp

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memory/4696-22-0x0000000006310000-0x0000000006342000-memory.dmp

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memory/4696-23-0x000000006F940000-0x000000006F98C000-memory.dmp

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memory/4696-8-0x0000000005650000-0x00000000056B6000-memory.dmp

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memory/4696-34-0x0000000006F20000-0x0000000006FC3000-memory.dmp

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memory/4696-35-0x0000000007700000-0x0000000007D7A000-memory.dmp

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memory/4696-36-0x0000000007050000-0x000000000706A000-memory.dmp

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memory/4696-9-0x00000000056C0000-0x0000000005726000-memory.dmp

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memory/4696-38-0x00000000072D0000-0x0000000007366000-memory.dmp

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memory/4696-39-0x0000000007260000-0x0000000007271000-memory.dmp

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memory/4696-40-0x0000000007290000-0x000000000729E000-memory.dmp

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memory/4696-41-0x00000000072A0000-0x00000000072B4000-memory.dmp

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memory/4696-42-0x0000000007390000-0x00000000073AA000-memory.dmp

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memory/4696-43-0x0000000007370000-0x0000000007378000-memory.dmp

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memory/4696-7-0x0000000004DA0000-0x0000000004DC2000-memory.dmp

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memory/4696-6-0x0000000004E30000-0x0000000005458000-memory.dmp

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memory/4696-5-0x00000000047C0000-0x00000000047F6000-memory.dmp

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