kutaki | 03e067b68230dd9da8e74c905e862dd1f7c094a35606405d4e426f8ba02981bc

General

Target

Payment_Receipt.exe
Size

812KB
MD5

fad8c7f1f023b519a8bc97f44c845f1b
SHA1

e305349bd0dda9732aaab10499153d6e80ce11bc
SHA256

c056c58e3d32716447e27dbe38e784b685203dededddf1253ba4051d0a7a174a
SHA512

ff1a302e99ad89f01c805517085fd76291ee594edc0e9e9c3980cd47dbf1c2429016b11df3b7621eb96da914809b2bb47e5291ec3cd2894f43ff116f9ce39fb3
SSDEEP

12288:jw/h2mDPAtjj4cv6aiUoIxbU546A9jmP/uhu/yMS08CkntxYRK:EPmjj4cZfmP/UDMS08Ckn3n

Score

10^/10

kutaki keylogger stealer

Malware Config

Extracted

Family

kutaki

C2

http://newloshree.xyz/work/son.php

Signatures

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

Kutaki Executable 4 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\nddfiuch.exe	family_kutaki
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\nddfiuch.exe	family_kutaki
\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\nddfiuch.exe	family_kutaki
\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\nddfiuch.exe	family_kutaki

Drops startup file 2 IoCs

Processes:

Payment_Receipt.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\nddfiuch.exe	Payment_Receipt.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\nddfiuch.exe	Payment_Receipt.exe

Executes dropped EXE 1 IoCs

Processes:

nddfiuch.exe

pid process

1732 nddfiuch.exe
Loads dropped DLL 2 IoCs

Processes:

Payment_Receipt.exe

pid process

1324 Payment_Receipt.exe
1324 Payment_Receipt.exe

pid	process
1732	nddfiuch.exe

Suspicious use of SetWindowsHookEx 64 IoCs

Processes:

Payment_Receipt.exenddfiuch.exe

pid	process
1324	Payment_Receipt.exe
1324	Payment_Receipt.exe
1324	Payment_Receipt.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe
1732	nddfiuch.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

Payment_Receipt.exe

description	pid	process	target process
PID 1324 wrote to memory of 1664	1324	Payment_Receipt.exe	cmd.exe
PID 1324 wrote to memory of 1664	1324	Payment_Receipt.exe	cmd.exe
PID 1324 wrote to memory of 1664	1324	Payment_Receipt.exe	cmd.exe
PID 1324 wrote to memory of 1664	1324	Payment_Receipt.exe	cmd.exe
PID 1324 wrote to memory of 1732	1324	Payment_Receipt.exe	nddfiuch.exe
PID 1324 wrote to memory of 1732	1324	Payment_Receipt.exe	nddfiuch.exe
PID 1324 wrote to memory of 1732	1324	Payment_Receipt.exe	nddfiuch.exe
PID 1324 wrote to memory of 1732	1324	Payment_Receipt.exe	nddfiuch.exe

C:\Users\Admin\AppData\Local\Temp\Payment_Receipt.exe
"C:\Users\Admin\AppData\Local\Temp\Payment_Receipt.exe"
1⤵
- Drops startup file
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1324
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c C:\Users\Admin\AppData\Local\Temp\
  2⤵
  PID:1664
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\nddfiuch.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\nddfiuch.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:1732

Network

MITRE ATT&CK Matrix

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Downloads

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

Filesize
812KB

MD5
fad8c7f1f023b519a8bc97f44c845f1b

SHA1
e305349bd0dda9732aaab10499153d6e80ce11bc

SHA256
c056c58e3d32716447e27dbe38e784b685203dededddf1253ba4051d0a7a174a

SHA512
ff1a302e99ad89f01c805517085fd76291ee594edc0e9e9c3980cd47dbf1c2429016b11df3b7621eb96da914809b2bb47e5291ec3cd2894f43ff116f9ce39fb3

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

Filesize
812KB

MD5
fad8c7f1f023b519a8bc97f44c845f1b

SHA1
e305349bd0dda9732aaab10499153d6e80ce11bc

SHA256
c056c58e3d32716447e27dbe38e784b685203dededddf1253ba4051d0a7a174a

SHA512
ff1a302e99ad89f01c805517085fd76291ee594edc0e9e9c3980cd47dbf1c2429016b11df3b7621eb96da914809b2bb47e5291ec3cd2894f43ff116f9ce39fb3

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\nddfiuch.exe

Filesize
812KB

MD5
fad8c7f1f023b519a8bc97f44c845f1b

SHA1
e305349bd0dda9732aaab10499153d6e80ce11bc

SHA256
c056c58e3d32716447e27dbe38e784b685203dededddf1253ba4051d0a7a174a

SHA512
ff1a302e99ad89f01c805517085fd76291ee594edc0e9e9c3980cd47dbf1c2429016b11df3b7621eb96da914809b2bb47e5291ec3cd2894f43ff116f9ce39fb3

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\nddfiuch.exe

Filesize
812KB

MD5
fad8c7f1f023b519a8bc97f44c845f1b

SHA1
e305349bd0dda9732aaab10499153d6e80ce11bc

SHA256
c056c58e3d32716447e27dbe38e784b685203dededddf1253ba4051d0a7a174a

SHA512
ff1a302e99ad89f01c805517085fd76291ee594edc0e9e9c3980cd47dbf1c2429016b11df3b7621eb96da914809b2bb47e5291ec3cd2894f43ff116f9ce39fb3

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads