187ab295bdd5b275ad78e3e69b2638e1cc612737a1aa0f527fffe65e8bbf6192

Analysis

max time kernel
150s
max time network
33s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
02-02-2023 13:30

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General

Target

a918d4a919efff52ac01e5370ca47cb7fb54fed4.exe
Size

16KB
MD5

2a09c56a439e48776692ed1a38ecd223
SHA1

a918d4a919efff52ac01e5370ca47cb7fb54fed4
SHA256

187ab295bdd5b275ad78e3e69b2638e1cc612737a1aa0f527fffe65e8bbf6192
SHA512

02ec3148e7fc4f8de9196f30243c5a0a50470f0b017ec8cf137d4bec86c5a40bfbdff67486b4fafd231a29826eafb1058dd755e8105b20b19fa9d87bcee697bf
SSDEEP

384:+VitRJmLHYUUdjvDj5K9naN8gAc9UvNridAoRT:+VitRJmLHYUuLVK9nUAhoRT

Score

7^/10

persistence

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
1736	a918d4a919efff52ac01e5370ca47cb7fb54fed4.exe

Adds Run key to start application 2 TTPs 1 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\mfchlp64 = "C:\\Windows\\mfchlp64.exe"	a918d4a919efff52ac01e5370ca47cb7fb54fed4.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\mfchlp64.dll	a918d4a919efff52ac01e5370ca47cb7fb54fed4.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\mfchlp64.exe	a918d4a919efff52ac01e5370ca47cb7fb54fed4.exe
File opened for modification	C:\Windows\mfchlp64.exe	a918d4a919efff52ac01e5370ca47cb7fb54fed4.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1736	a918d4a919efff52ac01e5370ca47cb7fb54fed4.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1736	a918d4a919efff52ac01e5370ca47cb7fb54fed4.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 1736 wrote to memory of 1264	1736	a918d4a919efff52ac01e5370ca47cb7fb54fed4.exe	19
PID 1736 wrote to memory of 1264	1736	a918d4a919efff52ac01e5370ca47cb7fb54fed4.exe	19

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1264
- C:\Users\Admin\AppData\Local\Temp\a918d4a919efff52ac01e5370ca47cb7fb54fed4.exe
  "C:\Users\Admin\AppData\Local\Temp\a918d4a919efff52ac01e5370ca47cb7fb54fed4.exe"
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - Drops file in System32 directory
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1736

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Windows\SysWOW64\mfchlp64.dll

Filesize
25KB

MD5
3d5fc73e82dca0c3b65e10c56e1fd60c

SHA1
3953a6aba92adef0e83c111d50b633c6bfaf3309

SHA256
0b412ec0b9438c57657c6593fa4bb9bbf35c58763d89eed25c6e2cd18974a52f

SHA512
12d197bbaef0537d08f3472a44793fc1304d70ecf5e6830cb43885370b1fb2cdf82da25c2b700ecfd7a5ac96346de39b772a53e11ff4a9096299bc45565074c3

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