kutaki | 56a6bca7c19df8d148d6662a92c118035254d929df721f4112b7f59aece15866

Analysis

max time kernel
124s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20220721-en
resource tags

arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
submitted
25/07/2022, 04:34

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

NEFT_Payment.exe
Size

1.3MB
MD5

28ef0988445cc4cdb59d31feca704df2
SHA1

0c89cb0b531a1bd68cc0c080d16f1a891e3a5a8f
SHA256

720f485bb099d1c9b4135b3253ebcd070f0bdedb2185a75748ff3f9d108f5cd1
SHA512

fc7f416529cbc4dfc6124a57a5f209974f822b341e10f3a55142dbfe689980265e24c4a79438d17934756274c204823db66a90d738fcf30308216606526a93ec

Score

10^/10

kutaki keylogger stealer

Malware Config

Extracted

Family

kutaki

http://ojorobia.club/laptop/laptop.php

http://terebinnahicc.club/sec/kool.txt

Signatures

Kutaki
Information stealer and keylogger that hides inside legitimate Visual Basic applications.
stealer keylogger kutaki

Kutaki Executable 2 IoCs

resource	yara_rule
behavioral2/files/0x000a000000022eb2-135.dat	family_kutaki
behavioral2/files/0x000a000000022eb2-134.dat	family_kutaki

Executes dropped EXE 1 IoCs

pid	Process
4024	oupbuech.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\oupbuech.exe	NEFT_Payment.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\oupbuech.exe	NEFT_Payment.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4792	NEFT_Payment.exe
4792	NEFT_Payment.exe
4792	NEFT_Payment.exe
4024	oupbuech.exe
4024	oupbuech.exe
4024	oupbuech.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4792 wrote to memory of 4400	4792	NEFT_Payment.exe	82
PID 4792 wrote to memory of 4400	4792	NEFT_Payment.exe	82
PID 4792 wrote to memory of 4400	4792	NEFT_Payment.exe	82
PID 4792 wrote to memory of 4024	4792	NEFT_Payment.exe	84
PID 4792 wrote to memory of 4024	4792	NEFT_Payment.exe	84
PID 4792 wrote to memory of 4024	4792	NEFT_Payment.exe	84

C:\Users\Admin\AppData\Local\Temp\NEFT_Payment.exe
"C:\Users\Admin\AppData\Local\Temp\NEFT_Payment.exe"
1⤵
- Drops startup file
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4792
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c C:\Users\Admin\AppData\Local\Temp\
  2⤵
  PID:4400
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\oupbuech.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\oupbuech.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:4024

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\oupbuech.exe

Filesize
1.3MB

MD5
28ef0988445cc4cdb59d31feca704df2

SHA1
0c89cb0b531a1bd68cc0c080d16f1a891e3a5a8f

SHA256
720f485bb099d1c9b4135b3253ebcd070f0bdedb2185a75748ff3f9d108f5cd1

SHA512
fc7f416529cbc4dfc6124a57a5f209974f822b341e10f3a55142dbfe689980265e24c4a79438d17934756274c204823db66a90d738fcf30308216606526a93ec

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\oupbuech.exe

Filesize
1.3MB

MD5
28ef0988445cc4cdb59d31feca704df2

SHA1
0c89cb0b531a1bd68cc0c080d16f1a891e3a5a8f

SHA256
720f485bb099d1c9b4135b3253ebcd070f0bdedb2185a75748ff3f9d108f5cd1

SHA512
fc7f416529cbc4dfc6124a57a5f209974f822b341e10f3a55142dbfe689980265e24c4a79438d17934756274c204823db66a90d738fcf30308216606526a93ec

Download Submit