phorphiex | 7e663d31d2d1fb89bb88dfa65fea415d754e5a9e6d804cf99c59d98f95580945

General

Target
24fe67e5b75b240e8bc12d76fe5b1e42.exe
Size 34KB
Sample201230-r942tjcd4a
SHA256 7e663d31d2d1fb89bb88dfa65fea415d754e5a9e6d804cf99c59d98f95580945
MD5 24fe67e5b75b240e8bc12d76fe5b1e42
SHA1 f5d4f5967a4daa68cc5a9b5323baffd3bc8d3c1d
SHA512 a605227ea20c041cffe26740a6f56ca45823e3450a7945d636af890b7162a16be88aa766c7347a55199f4b43b83493a089a91d53bde69ef3099670a47497f6b5
MD5 SHA1 SHA512

Score

10^/10

phorphiex evasion loader persistence trojan worm

Malware Config

Signatures

Phorphiex Payload 4 IoCs

resource	yara_rule
behavioral2/files/0x0003000000015614-3.dat	family_phorphiex
behavioral2/files/0x0003000000015614-4.dat	family_phorphiex
behavioral2/files/0x00020000000197fe-18.dat	family_phorphiex
behavioral2/files/0x00020000000197fe-19.dat	family_phorphiex

Phorphiex Worm
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
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112

Executes dropped EXE 4 IoCs

pid	Process
3112	svchost.exe
3044	2346221524.exe
3728	2954921339.exe
3624	3950212576.exe

Windows security modification 2 TTPs 7 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Host Process for Windows Services = "C:\\9918135313659\\svchost.exe"	24fe67e5b75b240e8bc12d76fe5b1e42.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\Host Process for Windows Services = "C:\\9918135313659\\svchost.exe"	24fe67e5b75b240e8bc12d76fe5b1e42.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3044	2346221524.exe
3044	2346221524.exe
3044	2346221524.exe
3044	2346221524.exe
3044	2346221524.exe
3044	2346221524.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1812 wrote to memory of 3112	1812	24fe67e5b75b240e8bc12d76fe5b1e42.exe	78
PID 1812 wrote to memory of 3112	1812	24fe67e5b75b240e8bc12d76fe5b1e42.exe	78
PID 1812 wrote to memory of 3112	1812	24fe67e5b75b240e8bc12d76fe5b1e42.exe	78
PID 3112 wrote to memory of 3044	3112	svchost.exe	79
PID 3112 wrote to memory of 3044	3112	svchost.exe	79
PID 3112 wrote to memory of 3044	3112	svchost.exe	79
PID 3112 wrote to memory of 3728	3112	svchost.exe	80
PID 3112 wrote to memory of 3728	3112	svchost.exe	80
PID 3112 wrote to memory of 3728	3112	svchost.exe	80
PID 3112 wrote to memory of 3624	3112	svchost.exe	81
PID 3112 wrote to memory of 3624	3112	svchost.exe	81
PID 3112 wrote to memory of 3624	3112	svchost.exe	81

C:\Users\Admin\AppData\Local\Temp\24fe67e5b75b240e8bc12d76fe5b1e42.exe
"C:\Users\Admin\AppData\Local\Temp\24fe67e5b75b240e8bc12d76fe5b1e42.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1812
- C:\9918135313659\svchost.exe
  C:\9918135313659\svchost.exe
  2⤵
  - Executes dropped EXE
  - Windows security modification
  - Suspicious use of WriteProcessMemory
  PID:3112
- - C:\Users\Admin\AppData\Local\Temp\2346221524.exe
    C:\Users\Admin\AppData\Local\Temp\2346221524.exe
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    PID:3044
- - C:\Users\Admin\AppData\Local\Temp\2954921339.exe
    C:\Users\Admin\AppData\Local\Temp\2954921339.exe
    3⤵
    - Executes dropped EXE
    PID:3728
- - C:\Users\Admin\AppData\Local\Temp\3950212576.exe
    C:\Users\Admin\AppData\Local\Temp\3950212576.exe
    3⤵
    - Executes dropped EXE
    PID:3624

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Disabling Security Tools

Modify Registry

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3044-8-0x0000000003040000-0x0000000003041000-memory.dmp

Download

memory/3044-10-0x0000000003040000-0x0000000003041000-memory.dmp

Download

memory/3044-9-0x0000000003840000-0x0000000003841000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads