phorphiex | 26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935

Analysis

max time kernel
74s
max time network
80s
platform
windows7_x64
resource
win7-20220414-en
submitted
16-06-2022 07:05

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General

Target

26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935.exe
Size

400KB
MD5

30efefe9cd1f4997b696712742162719
SHA1

ed2d09d53872a9d2c6614ab8cbee5b81b791f8cc
SHA256

26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935
SHA512

595f91d179314f82c2ffffa90c8510f707d0de7125924ac1dee89926ee45ad37f8beb47ae59a252e2deb1f985d908899371f362a853452c158a0f45d8c67e93b

Score

10^/10

phorphiex evasion loader persistence trojan worm

Malware Config

Extracted

Family

phorphiex

http://185.176.27.132/inf/

Wallets

19mduWVW9QphW5W2caWF84wcGVSmASRYpf

qp5d3zpgldngtzf0xg2swnqaedfhn3kmsyhk7kp0yt

Xj2EfZ34QwSskhx4aRjWjGpLpMgNQWgYeV

DRkCr8Qum86fMBT3ceyzYBAGzD8pbRZmba

0xab1b250d67d08bf73ac864ea57af8cf762a29649

LVvqtuuqxcPbmqZ7VQju6kFTmQKZ58yXH2

t1dWznNU9rPvPLhmgUQTivyFYmCk4FhDKRc

Signatures

Modifies Windows Defender Real-time Protection settings 3 TTPs 4 IoCs

evasion trojan

Modify Registry

T1112

Modify Existing Service

T1031

Disabling Security Tools

T1089

Processes:

sysuegv.exe

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection	sysuegv.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	sysuegv.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	sysuegv.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	sysuegv.exe

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
behavioral1/memory/1980-57-0x00000000003E0000-0x00000000003EE000-memory.dmp	family_phorphiex

Windows security bypass 2 TTPs 6 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

sysuegv.exe

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	sysuegv.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesOverride = "1"	sysuegv.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1"	sysuegv.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	sysuegv.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	sysuegv.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	sysuegv.exe

Executes dropped EXE 1 IoCs

Processes:

sysuegv.exe

pid	Process
844	sysuegv.exe

Loads dropped DLL 7 IoCs

Processes:

26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935.exeWerFault.exe

pid	Process
1980	26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935.exe
1980	26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935.exe
360	WerFault.exe
360	WerFault.exe
360	WerFault.exe
360	WerFault.exe
360	WerFault.exe

Windows security modification 2 TTPs 7 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

sysuegv.exe

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1"	sysuegv.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	sysuegv.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	sysuegv.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AutoUpdateDisableNotify = "1"	sysuegv.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	sysuegv.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	sysuegv.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesOverride = "1"	sysuegv.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft Windows Security = "C:\\Windows\\60766170\\sysuegv.exe"	26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Run\Microsoft Windows Security = "C:\\Windows\\60766170\\sysuegv.exe"	26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935.exe

Drops file in Program Files directory 3 IoCs

Processes:

sysuegv.exe

description	ioc	Process
File opened for modification	C:\Program Files\7-Zip\7z.exe	sysuegv.exe
File opened for modification	C:\Program Files\7-Zip\7zfm.exe	sysuegv.exe
File opened for modification	C:\Program Files\7-Zip\7zg.exe	sysuegv.exe

Drops file in Windows directory 3 IoCs

Processes:

26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935.exe

description	ioc	Process
File created	C:\Windows\60766170\sysuegv.exe	26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935.exe
File opened for modification	C:\Windows\60766170\sysuegv.exe	26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935.exe
File opened for modification	C:\Windows\60766170	26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
360	844	WerFault.exe	27

Suspicious behavior: EnumeratesProcesses 18 IoCs

Processes:

26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935.exesysuegv.exe

pid	Process
1980	26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935.exe
1980	26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935.exe
1980	26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935.exe
1980	26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935.exe
1980	26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935.exe
1980	26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935.exe
1980	26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935.exe
1980	26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935.exe
1980	26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935.exe
844	sysuegv.exe
844	sysuegv.exe
844	sysuegv.exe
844	sysuegv.exe
844	sysuegv.exe
844	sysuegv.exe
844	sysuegv.exe
844	sysuegv.exe
844	sysuegv.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935.exesysuegv.exe

description	pid	Process
Token: SeDebugPrivilege	1980	26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935.exe
Token: SeDebugPrivilege	844	sysuegv.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935.exesysuegv.exe

pid	Process
1980	26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935.exe
844	sysuegv.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935.exesysuegv.exe

description	pid	Process	procid_target
PID 1980 wrote to memory of 844	1980	26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935.exe	27
PID 1980 wrote to memory of 844	1980	26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935.exe	27
PID 1980 wrote to memory of 844	1980	26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935.exe	27
PID 1980 wrote to memory of 844	1980	26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935.exe	27
PID 844 wrote to memory of 360	844	sysuegv.exe	29
PID 844 wrote to memory of 360	844	sysuegv.exe	29
PID 844 wrote to memory of 360	844	sysuegv.exe	29
PID 844 wrote to memory of 360	844	sysuegv.exe	29

C:\Users\Admin\AppData\Local\Temp\26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935.exe
"C:\Users\Admin\AppData\Local\Temp\26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1980
- C:\Windows\60766170\sysuegv.exe
  C:\Windows\60766170\sysuegv.exe
  2⤵
  - Modifies Windows Defender Real-time Protection settings
  - Windows security bypass
  - Executes dropped EXE
  - Windows security modification
  - Drops file in Program Files directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:844
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 844 -s 880
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:360

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Disabling Security Tools

T1089

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\60766170\sysuegv.exe

Filesize
400KB

MD5
30efefe9cd1f4997b696712742162719

SHA1
ed2d09d53872a9d2c6614ab8cbee5b81b791f8cc

SHA256
26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935

SHA512
595f91d179314f82c2ffffa90c8510f707d0de7125924ac1dee89926ee45ad37f8beb47ae59a252e2deb1f985d908899371f362a853452c158a0f45d8c67e93b

Download Submit
C:\Windows\60766170\sysuegv.exe

Filesize
400KB

MD5
30efefe9cd1f4997b696712742162719

SHA1
ed2d09d53872a9d2c6614ab8cbee5b81b791f8cc

SHA256
26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935

SHA512
595f91d179314f82c2ffffa90c8510f707d0de7125924ac1dee89926ee45ad37f8beb47ae59a252e2deb1f985d908899371f362a853452c158a0f45d8c67e93b

Download Submit
\Windows\60766170\sysuegv.exe

Filesize
400KB

MD5
30efefe9cd1f4997b696712742162719

SHA1
ed2d09d53872a9d2c6614ab8cbee5b81b791f8cc

SHA256
26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935

SHA512
595f91d179314f82c2ffffa90c8510f707d0de7125924ac1dee89926ee45ad37f8beb47ae59a252e2deb1f985d908899371f362a853452c158a0f45d8c67e93b

Download Submit
\Windows\60766170\sysuegv.exe

Filesize
400KB

MD5
30efefe9cd1f4997b696712742162719

SHA1
ed2d09d53872a9d2c6614ab8cbee5b81b791f8cc

SHA256
26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935

SHA512
595f91d179314f82c2ffffa90c8510f707d0de7125924ac1dee89926ee45ad37f8beb47ae59a252e2deb1f985d908899371f362a853452c158a0f45d8c67e93b

Download Submit
\Windows\60766170\sysuegv.exe

Filesize
400KB

MD5
30efefe9cd1f4997b696712742162719

SHA1
ed2d09d53872a9d2c6614ab8cbee5b81b791f8cc

SHA256
26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935

SHA512
595f91d179314f82c2ffffa90c8510f707d0de7125924ac1dee89926ee45ad37f8beb47ae59a252e2deb1f985d908899371f362a853452c158a0f45d8c67e93b

Download Submit
\Windows\60766170\sysuegv.exe

Filesize
400KB

MD5
30efefe9cd1f4997b696712742162719

SHA1
ed2d09d53872a9d2c6614ab8cbee5b81b791f8cc

SHA256
26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935

SHA512
595f91d179314f82c2ffffa90c8510f707d0de7125924ac1dee89926ee45ad37f8beb47ae59a252e2deb1f985d908899371f362a853452c158a0f45d8c67e93b

Download Submit
\Windows\60766170\sysuegv.exe

Filesize
400KB

MD5
30efefe9cd1f4997b696712742162719

SHA1
ed2d09d53872a9d2c6614ab8cbee5b81b791f8cc

SHA256
26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935

SHA512
595f91d179314f82c2ffffa90c8510f707d0de7125924ac1dee89926ee45ad37f8beb47ae59a252e2deb1f985d908899371f362a853452c158a0f45d8c67e93b

Download Submit
\Windows\60766170\sysuegv.exe

Filesize
400KB

MD5
30efefe9cd1f4997b696712742162719

SHA1
ed2d09d53872a9d2c6614ab8cbee5b81b791f8cc

SHA256
26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935

SHA512
595f91d179314f82c2ffffa90c8510f707d0de7125924ac1dee89926ee45ad37f8beb47ae59a252e2deb1f985d908899371f362a853452c158a0f45d8c67e93b

Download Submit
\Windows\60766170\sysuegv.exe

Filesize
400KB

MD5
30efefe9cd1f4997b696712742162719

SHA1
ed2d09d53872a9d2c6614ab8cbee5b81b791f8cc

SHA256
26da382934358b88380909763175433dcab69c8affe5e6e35f11a8f3318b5935

SHA512
595f91d179314f82c2ffffa90c8510f707d0de7125924ac1dee89926ee45ad37f8beb47ae59a252e2deb1f985d908899371f362a853452c158a0f45d8c67e93b

Download Submit
memory/360-76-0x0000000000000000-mapping.dmp

Download
memory/844-69-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/844-67-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/844-64-0x0000000000000000-mapping.dmp

Download
memory/1980-68-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1980-54-0x00000000768D1000-0x00000000768D3000-memory.dmp

Filesize
8KB

Download
memory/1980-57-0x00000000003E0000-0x00000000003EE000-memory.dmp

Filesize
56KB

Download
memory/1980-56-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1980-55-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download