phorphiex | 6c00f372f51e691714fedf0418e9fbeb99f07f1e39bf340941ef59a24fe834cd

General

Target

2024-04-15_4e1d1fc6c276c6df5a69012b2e7b72ea_ryuk.exe
Size

354KB
MD5

4e1d1fc6c276c6df5a69012b2e7b72ea
SHA1

9f20916ca1b4d0f962ffc4bf95fafb38a0c06b68
SHA256

6c00f372f51e691714fedf0418e9fbeb99f07f1e39bf340941ef59a24fe834cd
SHA512

8841188a7dd6ec556333a92c8f394c7b377433183486043c16baf0ec2246056a8f1b684539553896e0de633c2c2b73f077a9a7e0d8f7428d56f79f855ab37322
SSDEEP

6144:P1AtjM+EVs7+W7d2lw4GAcstxxIHohqJpyQysE:t+M+FdCGAfUo0aQysE

Score

10^/10

phorphiex evasion loader persistence spyware stealer trojan worm

Malware Config

Extracted

Family

phorphiex

C2

http://185.215.113.66/

Wallets

0xCa90599132C4D88907Bd8E046540284aa468a035

TRuGGXNDM1cavQ1AqMQHG8yfxP4QWVSMN6

qph44jx8r9k5xeq5cuf958krv3ewrnp5vc6hhdjd3r

XryzFMFVpDUvU7famUGf214EXD3xNUSmQf

LLeT2zkStY3cvxMBFhoWXkG5VuZPoezduv

rwc4LVd9ABpULQ1CuCpDkgX2xVB1fUijyb

48jYpFT6bT8MTeph7VsyzCQeDsGHqdQNc2kUkRFJPzfRHHjarBvBtudPUtParMkDzZbYBrd3yntWBQcsnVBNeeMbN9EXifg

15TssKwtjMtwy4vDLcLsQUZUD2B9f7eDjw85sBNVC5LRPPnC

17hgMFyLDwMjxWqw5GhijhnPdJDyFDqecY

ltc1qt0n3f0t7vz9k0mvcswk477shrxwjhf9sj5ykrp

3PMiLynrGVZ8oEqvoqC4hXD67B1WoALR4pc

3FerB8kUraAVGCVCNkgv57zTBjUGjAUkU3

DLUzwvyxN1RrwjByUPPzVMdfxNRPGVRMMA

t1J6GCPCiHW1eRdjJgDDu6b1vSVmL5U7Twh

stars125f3mw4xd9htpsq4zj5w5ezm5gags37yxxh6mj

bnb1epx67ne4vckqmaj4gwke8m322f4yjr6eh52wqw

bc1qmpkehfffkr6phuklsksnd7nhgx0369sxu772m3

bitcoincash:qph44jx8r9k5xeq5cuf958krv3ewrnp5vc6hhdjd3r

GBQJMXYXPRIWFMXIFJR35ZB7LRKMB4PHCIUAUFR3TKUL6RDBZVLZEUJ3

Signatures

Modifies security service 2 TTPs 1 IoCs
evasion

Modify Registry
T1112

Windows Service
T1543.003

Processes:

53447286.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wuauserv\Start = "4" 53447286.exe
Phorphiex
Malware family which infects systems to distribute other malicious payloads such as ransomware, stealers and cryptominers.
worm trojan loader phorphiex

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wuauserv\Start = "4"	53447286.exe

Windows security bypass 2 TTPs 12 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

53447286.exe204103897.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	53447286.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	53447286.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	53447286.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	53447286.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	204103897.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	204103897.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	204103897.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	53447286.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1"	53447286.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	204103897.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1"	204103897.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	204103897.exe

Downloads MZ/PE file

Executes dropped EXE 9 IoCs

Processes:

2D88.exe53447286.exe1112112072.exe204103897.exe1052328235.exeWindows Security Upgrade Service.exe1790926441.exeWindows Security Upgrade Service.exeWindows Security Upgrade Service.exe

pid	process
1468	2D88.exe
2512	53447286.exe
4404	1112112072.exe
1312	204103897.exe
3332	1052328235.exe
2964	Windows Security Upgrade Service.exe
4764	1790926441.exe
3000	Windows Security Upgrade Service.exe
3516	Windows Security Upgrade Service.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Windows security modification 2 TTPs 14 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

53447286.exe204103897.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiSpywareOverride = "1"	53447286.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	53447286.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	53447286.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	53447286.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	204103897.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	53447286.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	53447286.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1"	53447286.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	204103897.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	204103897.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1"	204103897.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiSpywareOverride = "1"	204103897.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	204103897.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	204103897.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

53447286.exe204103897.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Settings = "C:\\Windows\\sysvpplvcr.exe"	53447286.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Settings = "C:\\Users\\Admin\\sysvpplvcr.exe"	53447286.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Service = "C:\\Windows\\winakrosvsa.exe"	204103897.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Service = "C:\\Users\\Admin\\winakrosvsa.exe"	204103897.exe

Drops file in Windows directory 4 IoCs

Processes:

53447286.exe204103897.exe

description	ioc	process
File created	C:\Windows\sysvpplvcr.exe	53447286.exe
File opened for modification	C:\Windows\sysvpplvcr.exe	53447286.exe
File created	C:\Windows\winakrosvsa.exe	204103897.exe
File opened for modification	C:\Windows\winakrosvsa.exe	204103897.exe

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

2024-04-15_4e1d1fc6c276c6df5a69012b2e7b72ea_ryuk.exe2D88.exe53447286.exe1052328235.exe

description	pid	process	target process
PID 1980 wrote to memory of 1468	1980	2024-04-15_4e1d1fc6c276c6df5a69012b2e7b72ea_ryuk.exe	2D88.exe
PID 1980 wrote to memory of 1468	1980	2024-04-15_4e1d1fc6c276c6df5a69012b2e7b72ea_ryuk.exe	2D88.exe
PID 1980 wrote to memory of 1468	1980	2024-04-15_4e1d1fc6c276c6df5a69012b2e7b72ea_ryuk.exe	2D88.exe
PID 1468 wrote to memory of 2512	1468	2D88.exe	53447286.exe
PID 1468 wrote to memory of 2512	1468	2D88.exe	53447286.exe
PID 1468 wrote to memory of 2512	1468	2D88.exe	53447286.exe
PID 2512 wrote to memory of 4404	2512	53447286.exe	1112112072.exe
PID 2512 wrote to memory of 4404	2512	53447286.exe	1112112072.exe
PID 2512 wrote to memory of 4404	2512	53447286.exe	1112112072.exe
PID 2512 wrote to memory of 1312	2512	53447286.exe	204103897.exe
PID 2512 wrote to memory of 1312	2512	53447286.exe	204103897.exe
PID 2512 wrote to memory of 1312	2512	53447286.exe	204103897.exe
PID 2512 wrote to memory of 3332	2512	53447286.exe	1052328235.exe
PID 2512 wrote to memory of 3332	2512	53447286.exe	1052328235.exe
PID 2512 wrote to memory of 3332	2512	53447286.exe	1052328235.exe
PID 3332 wrote to memory of 2964	3332	1052328235.exe	Windows Security Upgrade Service.exe
PID 3332 wrote to memory of 2964	3332	1052328235.exe	Windows Security Upgrade Service.exe
PID 3332 wrote to memory of 2964	3332	1052328235.exe	Windows Security Upgrade Service.exe
PID 2512 wrote to memory of 4764	2512	53447286.exe	1790926441.exe
PID 2512 wrote to memory of 4764	2512	53447286.exe	1790926441.exe
PID 2512 wrote to memory of 4764	2512	53447286.exe	1790926441.exe
PID 3332 wrote to memory of 3000	3332	1052328235.exe	Windows Security Upgrade Service.exe
PID 3332 wrote to memory of 3000	3332	1052328235.exe	Windows Security Upgrade Service.exe
PID 3332 wrote to memory of 3000	3332	1052328235.exe	Windows Security Upgrade Service.exe
PID 3332 wrote to memory of 3516	3332	1052328235.exe	Windows Security Upgrade Service.exe
PID 3332 wrote to memory of 3516	3332	1052328235.exe	Windows Security Upgrade Service.exe
PID 3332 wrote to memory of 3516	3332	1052328235.exe	Windows Security Upgrade Service.exe

C:\Users\Admin\AppData\Local\Temp\2024-04-15_4e1d1fc6c276c6df5a69012b2e7b72ea_ryuk.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-15_4e1d1fc6c276c6df5a69012b2e7b72ea_ryuk.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1980
- C:\Users\Admin\AppData\Local\Temp\2D88.exe
  "C:\Users\Admin\AppData\Local\Temp\2D88.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:1468
- - C:\Users\Admin\AppData\Local\Temp\53447286.exe
    C:\Users\Admin\AppData\Local\Temp\53447286.exe
    3⤵
    - Modifies security service
    - Windows security bypass
    - Executes dropped EXE
    - Windows security modification
    - Adds Run key to start application
    - Drops file in Windows directory
    - Suspicious use of WriteProcessMemory
    PID:2512
  - - C:\Users\Admin\AppData\Local\Temp\1112112072.exe
      C:\Users\Admin\AppData\Local\Temp\1112112072.exe
      4⤵
      Executes dropped EXE
      PID:4404
  - - C:\Users\Admin\AppData\Local\Temp\204103897.exe
      C:\Users\Admin\AppData\Local\Temp\204103897.exe
      4⤵
      Windows security bypass
      Executes dropped EXE
      Windows security modification
      Adds Run key to start application
      Drops file in Windows directory
      PID:1312
  - - C:\Users\Admin\AppData\Local\Temp\1052328235.exe
      C:\Users\Admin\AppData\Local\Temp\1052328235.exe
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:3332
    - - C:\Users\Admin\AppData\Local\Temp\Windows Security Upgrade Service.exe
        
        "C:\Users\Admin\AppData\Local\Temp\Windows Security Upgrade Service.exe"
        5⤵
        Executes dropped EXE
        
        PID:2964
    - - C:\Users\Admin\AppData\Local\Temp\Windows Security Upgrade Service.exe
        
        "C:\Users\Admin\AppData\Local\Temp\Windows Security Upgrade Service.exe"
        5⤵
        Executes dropped EXE
        
        PID:3000
    - - C:\Users\Admin\AppData\Local\Temp\Windows Security Upgrade Service.exe
        
        "C:\Users\Admin\AppData\Local\Temp\Windows Security Upgrade Service.exe"
        5⤵
        Executes dropped EXE
        
        PID:3516
  - - C:\Users\Admin\AppData\Local\Temp\1790926441.exe
      C:\Users\Admin\AppData\Local\Temp\1790926441.exe
      4⤵
      Executes dropped EXE
      PID:4764

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Impair Defenses

2

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\1052328235.exe

Filesize
10KB

MD5
0ed58505911ae244fa62cbd899612bb7

SHA1
f6ec97ec48d33f752c90ac5fd0b9314d7b505a22

SHA256
8b2b24a2c1f47acf527a8acc704fc77aecc036b09cdbd96ef32d3cf43ddce578

SHA512
c4508e90025521b537e9eb13b8c15990aa893b22ebd090e96ce53efa4b333184c99abcccf6bc90ad5d6e53a13883ec711da43f7083216edd7f403fe05dd1c983

Download Submit
C:\Users\Admin\AppData\Local\Temp\1790926441.exe

Filesize
8KB

MD5
c34a248f132e739652407b0aa8c978cd

SHA1
f7f05357fd6ab2d1a11e3427ee46626bb6ad94ee

SHA256
4c9c53256ff65c9930c38b193537ad510930c25052231c7eef3715057b79e578

SHA512
f7999e8b903fbc2e715d6d7e7bb0bc421cef79dbd61f6d94f18fa63c99a420d2a70d4b23fa0b8ec05d073c954aec718be588ada718bb0f5aacd618ad815f2703

Download Submit
C:\Users\Admin\AppData\Local\Temp\204103897.exe

Filesize
14KB

MD5
2f4ab1a4a57649200550c0906d57bc28

SHA1
94bc52ed3921791630b2a001d9565b8f1bd3bd17

SHA256
baa6149b5b917ea3af1f7c77a65e26a34a191a31a9c79726bd60baf4656701fa

SHA512
ab1a59aa4c48f6c7fcf7950f4a68c3b89a56f266681a5aabd0df947af8340676e209d82ddd1997bfebd972b35ca235233b61231335aec4567f7b031e786ea7e8

Download Submit
C:\Users\Admin\AppData\Local\Temp\2D88.exe

Filesize
9KB

MD5
62b97cf4c0abafeda36e3fc101a5a022

SHA1
328fae9acff3f17df6e9dc8d6ef1cec679d4eb2b

SHA256
e172537adcee1fcdc8f16c23e43a5ac82c56a0347fa0197c08be979438a534ab

SHA512
32bd7062aabd25205471cec8d292b820fc2fd2479da6fb723332887fc47036570bb2d25829acb7c883ccaaab272828c8effbc78f02a3deeabb47656f4b64eb24

Download Submit
C:\Users\Admin\AppData\Local\Temp\53447286.exe

Filesize
81KB

MD5
f4713c8ac5fc1e4919156157e7bece19

SHA1
7bd9e35b1d1210183bbb4fe1995895cbc1692c62

SHA256
2be2206e079516c8cfa50bbc86f8a431898aa90dd73f7cfc6af1d21573247c4b

SHA512
ecff8f3af212f444b5f44fd3bfd922556a49b9156fd7a20e13ebc60b4abe08b9d193a49556d4a8e776ef8083db77ab9667ec537dd44f863719e83cb3899cb46f

Download Submit
C:\Users\Admin\AppData\Local\Temp\Windows Security Upgrade Service.exe

Filesize
20KB

MD5
f4355af73c2dd6e8eb69f29570431f6a

SHA1
a0ba95d51d98fd602ab29531a7b0695496657a74

SHA256
31be31131a00b743ea598caf706b7c08703d98c3b90aed0523a0aace6ebe318c

SHA512
ea8cc7f93bf52da4a9637e40066606091883176914ae45af5fcb7323b48b832bdf8a67e1527bc549d7aacf964dc1ca2b2305e78552c55ebb128f987e9f0112c1

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads