phorphiex | d921fc993574c8be76553bcf4296d2851e48ee39b958205e69bdfd7cf661d2b1

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
17-01-2025 17:55

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General

Target

s.exe
Size

79KB
MD5

0c883b1d66afce606d9830f48d69d74b
SHA1

fe431fe73a4749722496f19b3b3ca0b629b50131
SHA256

d921fc993574c8be76553bcf4296d2851e48ee39b958205e69bdfd7cf661d2b1
SHA512

c047452a23efad4262479fbfeb5e23f9497d7cefd4cbb58e869801206669c2a0759698c70d18050316798d5d939b989537fdce3842aa742449f5e08ed7fa60a5
SSDEEP

1536:ZwjmKHFmav82kFifdWXwCsgTT+vr3Rzmxwz6fYc6on:+6tOMFif3CsKavr0xwz6gc6on

Score

10^/10

phorphiex discovery loader persistence trojan worm

Malware Config

Signatures

Phorphiex family
phorphiex

Phorphiex payload 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001225c-4.dat	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

Executes dropped EXE 1 IoCs

pid	Process
2224	sysnldcvmr.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\Windows Settings = "C:\\Windows\\sysnldcvmr.exe"	s.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\sysnldcvmr.exe	s.exe
File opened for modification	C:\Windows\sysnldcvmr.exe	s.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	s.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sysnldcvmr.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2292 wrote to memory of 2224	2292	s.exe	30
PID 2292 wrote to memory of 2224	2292	s.exe	30
PID 2292 wrote to memory of 2224	2292	s.exe	30
PID 2292 wrote to memory of 2224	2292	s.exe	30

C:\Users\Admin\AppData\Local\Temp\s.exe
"C:\Users\Admin\AppData\Local\Temp\s.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2292
- C:\Windows\sysnldcvmr.exe
  C:\Windows\sysnldcvmr.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2224

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

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\sysnldcvmr.exe

Filesize
79KB

MD5
0c883b1d66afce606d9830f48d69d74b

SHA1
fe431fe73a4749722496f19b3b3ca0b629b50131

SHA256
d921fc993574c8be76553bcf4296d2851e48ee39b958205e69bdfd7cf661d2b1

SHA512
c047452a23efad4262479fbfeb5e23f9497d7cefd4cbb58e869801206669c2a0759698c70d18050316798d5d939b989537fdce3842aa742449f5e08ed7fa60a5

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads