phorphiex | 56e4e386e97062cbb1a8a8f813e1b7debf1bf874595cc7f57200a783d9de78a7

General

Target

2024-03-14_ba6bb7301ff3525bfff33ef50fecd9d0_ryuk.exe
Size

1.0MB
MD5

ba6bb7301ff3525bfff33ef50fecd9d0
SHA1

d7b5ea9ae788300f70ef37b6c2afefacd4b4ce35
SHA256

56e4e386e97062cbb1a8a8f813e1b7debf1bf874595cc7f57200a783d9de78a7
SHA512

dadb449c21fdd6b35f41143515b0fdadd490fa67e43c10de6299c2399249fe5bcf4966f1063a27ec78d427289cc276d06c3f6cd6fe1b15c24170896aa9c71980
SSDEEP

12288:GUaYzBGeoHgPy96DAx3kQ+zAVh+nro94zj/80oJaLE:GMMeoHKy99WQ+zIh+nro8A0L

Score

10^/10

phorphiex evasion loader persistence trojan worm

Malware Config

Extracted

Family

phorphiex

C2

http://185.215.113.66/

Wallets

0xAa3ea4838e8E3F6a1922c6B67E3cD6efD1ff175b

THRUoPK7oYqF7YyKZJvPYwTH35JsPZVPto

1Hw9tx4KyTq4oRoLVhPb4hjDJcLhEa4Tn6

qr89hag2967ef604ud3lw4pq8hmn69n46czwdnx3ut

XtxFdsKkRN3oVDXtN2ipcHeNi87basT2sL

LXMNcn9D8FQKzGNLjdSyR9dEM8Rsh9NzyX

rwn7tb5KQjXEjH42GgdHWHec5PPhVgqhSH

ARML6g7zynrwUHJbFJCCzMPiysUFXYBGgQ

48jYpFT6bT8MTeph7VsyzCQeDsGHqdQNc2kUkRFJPzfRHHjarBvBtudPUtParMkDzZbYBrd3yntWBQcsnVBNeeMbN9EXifg

3PL7YCa4akNYzuScqQwiSbtTP9q9E9PLreC

3FerB8kUraAVGCVCNkgv57zTBjUGjAUkU3

D9AJWrbYsidS9rAU146ifLRu1fzX9oQYSH

t1gvVWHnjbGTsoWXEyoTFojc2GqEzBgvbEn

bnb1cgttf7t5hu7ud3c436ufhcmy59qnkd09adqczd

bc1q0fusmmgycnhsd5cadsuz2hk8d4maausjfjypqg

bitcoincash:qr89hag2967ef604ud3lw4pq8hmn69n46czwdnx3ut

GAUCC7ZBSU2KJMHXOZD6AP5LOBGKNDPCDNRYP2CO2ACR63YCSUBNT5QE

Signatures

Phorphiex
Malware family which infects systems to distribute other malicious payloads such as ransomware, stealers and cryptominers.
worm trojan loader phorphiex

Phorphiex payload 1 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\223927081.exe	family_phorphiex

Windows security bypass 2 TTPs 12 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

223927081.exe281016899.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	223927081.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1"	223927081.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	281016899.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	281016899.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	281016899.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1"	281016899.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	281016899.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	223927081.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	223927081.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	223927081.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	281016899.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	223927081.exe

Downloads MZ/PE file
Executes dropped EXE 4 IoCs

Processes:

A047.exe281016899.exe223927081.exe2063931471.exe

pid process

2308 A047.exe
1300 281016899.exe
3140 223927081.exe
4352 2063931471.exe

pid	process
2308	A047.exe
1300	281016899.exe
3140	223927081.exe
4352	2063931471.exe

Windows security modification 2 TTPs 14 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

281016899.exe223927081.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	281016899.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	223927081.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	223927081.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	281016899.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	281016899.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiSpywareOverride = "1"	281016899.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1"	281016899.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	223927081.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1"	223927081.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	223927081.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	223927081.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	281016899.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	281016899.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiSpywareOverride = "1"	223927081.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

281016899.exe223927081.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Settings = "C:\\Windows\\sysdinrdvs.exe"	281016899.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Settings = "C:\\Users\\Admin\\sysdinrdvs.exe"	281016899.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Service = "C:\\Windows\\winknavrso.exe"	223927081.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Service = "C:\\Users\\Admin\\winknavrso.exe"	223927081.exe

Drops file in Windows directory 4 IoCs

Processes:

223927081.exe281016899.exe

description	ioc	process
File opened for modification	C:\Windows\winknavrso.exe	223927081.exe
File created	C:\Windows\sysdinrdvs.exe	281016899.exe
File opened for modification	C:\Windows\sysdinrdvs.exe	281016899.exe
File created	C:\Windows\winknavrso.exe	223927081.exe

Suspicious behavior: SetClipboardViewer 1 IoCs

Processes:

223927081.exe

pid process

3140 223927081.exe

pid	process
3140	223927081.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

2024-03-14_ba6bb7301ff3525bfff33ef50fecd9d0_ryuk.exeA047.exe281016899.exe

description	pid	process	target process
PID 4288 wrote to memory of 2308	4288	2024-03-14_ba6bb7301ff3525bfff33ef50fecd9d0_ryuk.exe	A047.exe
PID 4288 wrote to memory of 2308	4288	2024-03-14_ba6bb7301ff3525bfff33ef50fecd9d0_ryuk.exe	A047.exe
PID 4288 wrote to memory of 2308	4288	2024-03-14_ba6bb7301ff3525bfff33ef50fecd9d0_ryuk.exe	A047.exe
PID 2308 wrote to memory of 1300	2308	A047.exe	281016899.exe
PID 2308 wrote to memory of 1300	2308	A047.exe	281016899.exe
PID 2308 wrote to memory of 1300	2308	A047.exe	281016899.exe
PID 1300 wrote to memory of 3140	1300	281016899.exe	223927081.exe
PID 1300 wrote to memory of 3140	1300	281016899.exe	223927081.exe
PID 1300 wrote to memory of 3140	1300	281016899.exe	223927081.exe
PID 1300 wrote to memory of 4352	1300	281016899.exe	2063931471.exe
PID 1300 wrote to memory of 4352	1300	281016899.exe	2063931471.exe
PID 1300 wrote to memory of 4352	1300	281016899.exe	2063931471.exe

C:\Users\Admin\AppData\Local\Temp\2024-03-14_ba6bb7301ff3525bfff33ef50fecd9d0_ryuk.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-14_ba6bb7301ff3525bfff33ef50fecd9d0_ryuk.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4288

C:\Users\Admin\AppData\Local\Temp\A047.exe
"C:\Users\Admin\AppData\Local\Temp\A047.exe"
2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2308

C:\Users\Admin\AppData\Local\Temp\281016899.exe
C:\Users\Admin\AppData\Local\Temp\281016899.exe
3⤵
- 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:1300

C:\Users\Admin\AppData\Local\Temp\223927081.exe
C:\Users\Admin\AppData\Local\Temp\223927081.exe
4⤵
- Windows security bypass
- Executes dropped EXE
- Windows security modification
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious behavior: SetClipboardViewer
PID:3140

C:\Users\Admin\AppData\Local\Temp\2063931471.exe
C:\Users\Admin\AppData\Local\Temp\2063931471.exe
4⤵
- Executes dropped EXE
PID:4352

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

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Impair Defenses

2

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\2063931471.exe
Filesize
84KB

MD5
41d55c23d79fc0c0c322db16c6ce6af8

SHA1
e4bbdf2a983a11975a7ab6dcba41cb60676ec780

SHA256
93f3f99a6d6dc69b907a3da8596bd850c1e3ce53be9bf1c6edfdb00e90579e6f

SHA512
06680eb47802659dc2e28cd9a839052a8536112056db49f7179f1b53cf2dba0e9cfd9d8bbdeb446ecb8a2f4a58f7b0f100d0526660d4afd8540a4db091cf621f

Download Submit
C:\Users\Admin\AppData\Local\Temp\223927081.exe
Filesize
23KB

MD5
9d2b22562b9a3958dfd7e6e6fa7bd66f

SHA1
1941c24958ac09cf518f4124225b2d0b5d874cf0

SHA256
84daa9d52f759af343741880a3b66a3abb886310de7f552743d99e69741c6450

SHA512
8c0b54e01f62207edaaf8f967fe83eacd3e278660c1764feb3fde68bfd376ba875012849f969d8b5922bd6b791a231bf75dc76eade227e2fd25f4791163d9dd1

Download Submit
C:\Users\Admin\AppData\Local\Temp\281016899.exe
Filesize
84KB

MD5
161a475bfe57d8b5317ca1f2f24b88fa

SHA1
38fa8a789d3d7570c411ddf4c038d89524142c2c

SHA256
98fb81423a107a5359e5fc86f1c4d81ff2d4bc73b79f55a5bf827fdb8e620c54

SHA512
d9f61f80c96fbac030c1105274f690d38d5dc8af360645102080a7caed7bad303ae89ed0e169124b834a68d1a669781eb70269bf4e8d5f34aeef394dd3d16547

Download Submit
C:\Users\Admin\AppData\Local\Temp\A047.exe
Filesize
9KB

MD5
62b97cf4c0abafeda36e3fc101a5a022

SHA1
328fae9acff3f17df6e9dc8d6ef1cec679d4eb2b

SHA256
e172537adcee1fcdc8f16c23e43a5ac82c56a0347fa0197c08be979438a534ab

SHA512
32bd7062aabd25205471cec8d292b820fc2fd2479da6fb723332887fc47036570bb2d25829acb7c883ccaaab272828c8effbc78f02a3deeabb47656f4b64eb24

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads