phorphiex | 52e466a63f14eaa3de93e7b7c1941cea5d9d2f685a16fe212620a8018590afd0

General

Target

4651bf3c26495f0194ead565adf06640N.exe
Size

112KB
MD5

4651bf3c26495f0194ead565adf06640
SHA1

81e8f66c776270edb935c1172bf10234a45cab7b
SHA256

52e466a63f14eaa3de93e7b7c1941cea5d9d2f685a16fe212620a8018590afd0
SHA512

025ad9dc960f26c4fed330911ffd6347bc1066bc0000e8bcfa050e6ae7c2bd3a012a84d80cf81f933b85e858e3fbc084e4d2cbef3d069fc572874b517c50533d
SSDEEP

1536:szc+qmiFmav82Uy6MqAgcc6rC5jyc5FQUG9X3Kr:k9qoOYag5aCd+n3Kr

Score

10^/10

phorphiex discovery evasion execution loader persistence trojan worm

Malware Config

Extracted

Family

phorphiex

C2

http://185.215.113.66/

http://91.202.233.141/

Wallets

0xCa90599132C4D88907Bd8E046540284aa468a035

TRuGGXNDM1cavQ1AqMQHG8yfxP4QWVSMN6

qph44jx8r9k5xeq5cuf958krv3ewrnp5vc6hhdjd3r

XryzFMFVpDUvU7famUGf214EXD3xNUSmQf

rsXCXBf9SagxV8JfC12d8Bybk84oPdMNN9

AULzfBuUAPfCGAXoG5Vq14aP9s6fx3AH4Z

LTK4xdKPAgFHPLan8kriAD7eY4heyy73mB

MP8GEm8QpYgQYaMo8oM5NQhRBgDGiLZW5Q

4BB7ckkaPTyADc8trtuwDoZxywaR4eNL5cDJ3KBjq9GraN4mUFztf7mLS7WgT7Bh7uPqpjvA4ypVwXKCJ1vvLWWAFvSmDoD

15TssKwtjMtwy4vDLcLsQUZUD2B9f7eDjw85sBNVC5LRPPnC

1BzmrjmKPKSR2hH5BeJySfiVA676E8DYaK

ltc1qt0n3f0t7vz9k0mvcswk477shrxwjhf9sj5ykrp

3PMiLynrGVZ8oEqvoqC4hXD67B1WoALR4pc

3PC3JJEUP8CCAH8ZSTzTpTwMLNrBFe9EvM

DLUzwvyxN1RrwjByUPPzVMdfxNRPGVRMMA

t1J6GCPCiHW1eRdjJgDDu6b1vSVmL5U7Twh

stars125f3mw4xd9htpsq4zj5w5ezm5gags37yxxh6mj

bnb1msyt0djx4ecspfxg5en0ye465kg3kmv9utzml2

bc1ppypcmu3684n648gyj62gjp2rw0xy7w3vwfamatlg29ajp4z52desafa0sr

bc1qc9edl4hzl9jyt8twdad3zjeh2df2znq96tdezd

Attributes

mutex
o90tr5xc
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

Processes:

sysyhlrsv.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wuauserv\Start = "4" sysyhlrsv.exe

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

Phorphiex payload 1 IoCs

Processes:

resource	yara_rule
C:\Windows\sysyhlrsv.exe	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

Processes:

sysyhlrsv.exe

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

Processes:

powershell.exe

pid process

992 powershell.exe
Stops running service(s) 4 TTPs
evasion execution

Windows Service
T1543.003

Impair Defenses
T1562

Service Stop
T1489

Service Execution
T1569.002

pid	process
992	powershell.exe

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

Processes:

sysyhlrsv.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	sysyhlrsv.exe

Executes dropped EXE 2 IoCs

Processes:

sysyhlrsv.exe1156225296.exe

pid process

32 sysyhlrsv.exe
4200 1156225296.exe

pid	process
32	sysyhlrsv.exe
4200	1156225296.exe

Windows security modification 2 TTPs 7 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

sysyhlrsv.exe

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

4651bf3c26495f0194ead565adf06640N.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Settings = "C:\\Windows\\sysyhlrsv.exe"	4651bf3c26495f0194ead565adf06640N.exe

Drops file in Windows directory 2 IoCs

Processes:

4651bf3c26495f0194ead565adf06640N.exe

description	ioc	process
File created	C:\Windows\sysyhlrsv.exe	4651bf3c26495f0194ead565adf06640N.exe
File opened for modification	C:\Windows\sysyhlrsv.exe	4651bf3c26495f0194ead565adf06640N.exe

Launches sc.exe 5 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exesc.exesc.exe

pid process

3140 sc.exe
4816 sc.exe
220 sc.exe
3668 sc.exe
2536 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
3140	sc.exe
4816	sc.exe
220	sc.exe
3668	sc.exe
2536	sc.exe

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

Processes:

cmd.exepowershell.exesc.exesc.exe1156225296.exe4651bf3c26495f0194ead565adf06640N.exesysyhlrsv.exesc.exesc.execmd.exesc.exe

description	ioc	process
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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1156225296.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4651bf3c26495f0194ead565adf06640N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sysyhlrsv.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe

pid process

992 powershell.exe
992 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 992 powershell.exe

pid	process
992	powershell.exe
992	powershell.exe

description	pid	process
Token: SeDebugPrivilege	992	powershell.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

4651bf3c26495f0194ead565adf06640N.exesysyhlrsv.execmd.execmd.exe

description	pid	process	target process
PID 4564 wrote to memory of 32	4564	4651bf3c26495f0194ead565adf06640N.exe	sysyhlrsv.exe
PID 4564 wrote to memory of 32	4564	4651bf3c26495f0194ead565adf06640N.exe	sysyhlrsv.exe
PID 4564 wrote to memory of 32	4564	4651bf3c26495f0194ead565adf06640N.exe	sysyhlrsv.exe
PID 32 wrote to memory of 3408	32	sysyhlrsv.exe	cmd.exe
PID 32 wrote to memory of 3408	32	sysyhlrsv.exe	cmd.exe
PID 32 wrote to memory of 3408	32	sysyhlrsv.exe	cmd.exe
PID 32 wrote to memory of 1932	32	sysyhlrsv.exe	cmd.exe
PID 32 wrote to memory of 1932	32	sysyhlrsv.exe	cmd.exe
PID 32 wrote to memory of 1932	32	sysyhlrsv.exe	cmd.exe
PID 3408 wrote to memory of 992	3408	cmd.exe	powershell.exe
PID 3408 wrote to memory of 992	3408	cmd.exe	powershell.exe
PID 3408 wrote to memory of 992	3408	cmd.exe	powershell.exe
PID 1932 wrote to memory of 3140	1932	cmd.exe	sc.exe
PID 1932 wrote to memory of 3140	1932	cmd.exe	sc.exe
PID 1932 wrote to memory of 3140	1932	cmd.exe	sc.exe
PID 1932 wrote to memory of 4816	1932	cmd.exe	sc.exe
PID 1932 wrote to memory of 4816	1932	cmd.exe	sc.exe
PID 1932 wrote to memory of 4816	1932	cmd.exe	sc.exe
PID 1932 wrote to memory of 220	1932	cmd.exe	sc.exe
PID 1932 wrote to memory of 220	1932	cmd.exe	sc.exe
PID 1932 wrote to memory of 220	1932	cmd.exe	sc.exe
PID 1932 wrote to memory of 3668	1932	cmd.exe	sc.exe
PID 1932 wrote to memory of 3668	1932	cmd.exe	sc.exe
PID 1932 wrote to memory of 3668	1932	cmd.exe	sc.exe
PID 1932 wrote to memory of 2536	1932	cmd.exe	sc.exe
PID 1932 wrote to memory of 2536	1932	cmd.exe	sc.exe
PID 1932 wrote to memory of 2536	1932	cmd.exe	sc.exe
PID 32 wrote to memory of 4200	32	sysyhlrsv.exe	1156225296.exe
PID 32 wrote to memory of 4200	32	sysyhlrsv.exe	1156225296.exe
PID 32 wrote to memory of 4200	32	sysyhlrsv.exe	1156225296.exe

C:\Users\Admin\AppData\Local\Temp\4651bf3c26495f0194ead565adf06640N.exe
"C:\Users\Admin\AppData\Local\Temp\4651bf3c26495f0194ead565adf06640N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4564

C:\Windows\sysyhlrsv.exe
C:\Windows\sysyhlrsv.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:32

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:3408

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:992

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
3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1932

C:\Windows\SysWOW64\sc.exe
sc stop UsoSvc
4⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:3140

C:\Windows\SysWOW64\sc.exe
sc stop WaaSMedicSvc
4⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:4816

C:\Windows\SysWOW64\sc.exe
sc stop wuauserv
4⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:220

C:\Windows\SysWOW64\sc.exe
sc stop DoSvc
4⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:3668

C:\Windows\SysWOW64\sc.exe
sc stop BITS
4⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2536

C:\Users\Admin\AppData\Local\Temp\1156225296.exe
C:\Users\Admin\AppData\Local\Temp\1156225296.exe
3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4200

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Defense Evasion

Impair Defenses

3

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Service Stop

1

T1489

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Downloads

C:\Users\Admin\AppData\Local\Temp\1156225296.exe

Filesize
7KB

MD5
ac0a159a6c219e2cea55dcc77ab6e337

SHA1
3e0e7c2e758dae61edf9f27860693a1910ba71aa

SHA256
e97496328c0d205a7ecb4ade75c1555fc7787ec54334468739c5c5cfd6566b3c

SHA512
4f29a8d75d71d553166f817474f316a80be4fb39d8b7b38336b172ad4c428bbc76b461ac02befca4b15ca42562cdb783a27b02d5eb8c1af2944e0d4e2acadc6a

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wxwqkpbn.4ih.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Windows\sysyhlrsv.exe

Filesize
112KB

MD5
4651bf3c26495f0194ead565adf06640

SHA1
81e8f66c776270edb935c1172bf10234a45cab7b

SHA256
52e466a63f14eaa3de93e7b7c1941cea5d9d2f685a16fe212620a8018590afd0

SHA512
025ad9dc960f26c4fed330911ffd6347bc1066bc0000e8bcfa050e6ae7c2bd3a012a84d80cf81f933b85e858e3fbc084e4d2cbef3d069fc572874b517c50533d

Download Submit
memory/992-33-0x0000000006D00000-0x0000000006D1E000-memory.dmp

Filesize
120KB

Download
memory/992-35-0x0000000008140000-0x00000000087BA000-memory.dmp

Filesize
6.5MB

Download
memory/992-9-0x00000000060C0000-0x0000000006126000-memory.dmp

Filesize
408KB

Download
memory/992-7-0x0000000005850000-0x0000000005872000-memory.dmp

Filesize
136KB

Download
memory/992-19-0x0000000006230000-0x0000000006584000-memory.dmp

Filesize
3.3MB

Download
memory/992-20-0x00000000066F0000-0x000000000670E000-memory.dmp

Filesize
120KB

Download
memory/992-21-0x0000000006740000-0x000000000678C000-memory.dmp

Filesize
304KB

Download
memory/992-22-0x0000000006CC0000-0x0000000006CF2000-memory.dmp

Filesize
200KB

Download
memory/992-23-0x000000006FA00000-0x000000006FA4C000-memory.dmp

Filesize
304KB

Download
memory/992-6-0x00000000058F0000-0x0000000005F18000-memory.dmp

Filesize
6.2MB

Download
memory/992-34-0x00000000076E0000-0x0000000007783000-memory.dmp

Filesize
652KB

Download
memory/992-8-0x0000000006050000-0x00000000060B6000-memory.dmp

Filesize
408KB

Download
memory/992-36-0x0000000007810000-0x000000000782A000-memory.dmp

Filesize
104KB

Download
memory/992-37-0x0000000007890000-0x000000000789A000-memory.dmp

Filesize
40KB

Download
memory/992-38-0x0000000007CA0000-0x0000000007D36000-memory.dmp

Filesize
600KB

Download
memory/992-39-0x0000000007C40000-0x0000000007C51000-memory.dmp

Filesize
68KB

Download
memory/992-40-0x0000000007C60000-0x0000000007C6E000-memory.dmp

Filesize
56KB

Download
memory/992-41-0x0000000007C70000-0x0000000007C84000-memory.dmp

Filesize
80KB

Download
memory/992-42-0x0000000007D60000-0x0000000007D7A000-memory.dmp

Filesize
104KB

Download
memory/992-43-0x0000000007D40000-0x0000000007D48000-memory.dmp

Filesize
32KB

Download
memory/992-5-0x0000000003120000-0x0000000003156000-memory.dmp

Filesize
216KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads