phorphiex | 304946a6982a482d29eb43968c79f8f24c513bba71cd886e6b186054b7632677

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
19/12/2023, 20:36

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General

Target
96cc66c0821ac95f0a8b1d4e0f549109.exe
Size 71KB
Sample231219-zdrfeahhf4
SHA256 304946a6982a482d29eb43968c79f8f24c513bba71cd886e6b186054b7632677
MD5 96cc66c0821ac95f0a8b1d4e0f549109
SHA1 31515284c6dcc9c7bd1ffced8bb7bd216a268413
SHA512 912c6c16fa99e13e833b0966b52172ceaa21a4eff5e3e99045727c49cd0fef1f77ac27f47851a32d365db25b920cddb2358775863c10729a166a7420b4c585c2
SSDEEP 1536:+3Mz8oy284usnjFzuNXoaSTM98qKH5FnA:FwofxFK5oagMNO5FA
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

phorphiex evasion loader persistence trojan worm

Malware Config

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

resource	yara_rule
behavioral2/files/0x0007000000023204-3.dat	family_phorphiex

Windows security bypass 2 TTPs 6 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

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

Executes dropped EXE 1 IoCs

pid	Process
6036	wsecsvcmgr.exe

Windows security modification 2 TTPs 7 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft Windows Update Service = "C:\\Windows\\wsecsvcmgr.exe"	96cc66c0821ac95f0a8b1d4e0f549109.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\wsecsvcmgr.exe	96cc66c0821ac95f0a8b1d4e0f549109.exe
File created	C:\Windows\wsecsvcmgr.exe	96cc66c0821ac95f0a8b1d4e0f549109.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3860 wrote to memory of 6036	3860	96cc66c0821ac95f0a8b1d4e0f549109.exe	91
PID 3860 wrote to memory of 6036	3860	96cc66c0821ac95f0a8b1d4e0f549109.exe	91
PID 3860 wrote to memory of 6036	3860	96cc66c0821ac95f0a8b1d4e0f549109.exe	91

C:\Users\Admin\AppData\Local\Temp\96cc66c0821ac95f0a8b1d4e0f549109.exe
"C:\Users\Admin\AppData\Local\Temp\96cc66c0821ac95f0a8b1d4e0f549109.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:3860
- C:\Windows\wsecsvcmgr.exe
  C:\Windows\wsecsvcmgr.exe
  2⤵
  - Windows security bypass
  - Executes dropped EXE
  - Windows security modification
  PID:6036

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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wsecsvcmgr.exe

Path C:\Windows\wsecsvcmgr.exe
Size 71KB
SHA256 304946a6982a482d29eb43968c79f8f24c513bba71cd886e6b186054b7632677
MD5 96cc66c0821ac95f0a8b1d4e0f549109
SHA1 31515284c6dcc9c7bd1ffced8bb7bd216a268413
SHA512 912c6c16fa99e13e833b0966b52172ceaa21a4eff5e3e99045727c49cd0fef1f77ac27f47851a32d365db25b920cddb2358775863c10729a166a7420b4c585c2
SSDEEP 1536:+3Mz8oy284usnjFzuNXoaSTM98qKH5FnA:FwofxFK5oagMNO5FA
MD5 SHA1 SHA512 SSDEEP

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Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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