kutaki | 2b322f4e53d8e70e2f3a53d4024b2f96fb029e0563c78f1efc0e18f742a5c5a5

Analysis

max time kernel
122s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20220721-en
resource tags

arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
submitted
01/08/2022, 10:38

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General

Target

NEFT_Payment.exe
Size

2.6MB
MD5

70e966394bf9947ff01b681bab9d0f71
SHA1

53946411e4e975a9ed354b16cd22041108e9f596
SHA256

c7e3deb446233da1eb6c6df66913065773d510a21750a9ea675b69be46ab245a
SHA512

a71a0b9b265b3c31c01305b121b386b8beb14cb6f670df4cbdad3d2fb7a3b3c508b25b48b253cba4c9aacde77e47fc32481fdc4cfc9221af83ea90ab7a6fc200

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/0x000c000000022e20-135.dat	family_kutaki
behavioral2/files/0x000c000000022e20-134.dat	family_kutaki

Executes dropped EXE 1 IoCs

pid	Process
3776	znmqruch.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\znmqruch.exe	NEFT_Payment.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\znmqruch.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
5080	NEFT_Payment.exe
5080	NEFT_Payment.exe
5080	NEFT_Payment.exe
3776	znmqruch.exe
3776	znmqruch.exe
3776	znmqruch.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5080 wrote to memory of 3408	5080	NEFT_Payment.exe	84
PID 5080 wrote to memory of 3408	5080	NEFT_Payment.exe	84
PID 5080 wrote to memory of 3408	5080	NEFT_Payment.exe	84
PID 5080 wrote to memory of 3776	5080	NEFT_Payment.exe	85
PID 5080 wrote to memory of 3776	5080	NEFT_Payment.exe	85
PID 5080 wrote to memory of 3776	5080	NEFT_Payment.exe	85

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:5080
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c C:\Users\Admin\AppData\Local\Temp\
  2⤵
  PID:3408
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\znmqruch.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\znmqruch.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:3776

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

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Downloads

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

Filesize
2.6MB

MD5
70e966394bf9947ff01b681bab9d0f71

SHA1
53946411e4e975a9ed354b16cd22041108e9f596

SHA256
c7e3deb446233da1eb6c6df66913065773d510a21750a9ea675b69be46ab245a

SHA512
a71a0b9b265b3c31c01305b121b386b8beb14cb6f670df4cbdad3d2fb7a3b3c508b25b48b253cba4c9aacde77e47fc32481fdc4cfc9221af83ea90ab7a6fc200

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

Filesize
2.6MB

MD5
70e966394bf9947ff01b681bab9d0f71

SHA1
53946411e4e975a9ed354b16cd22041108e9f596

SHA256
c7e3deb446233da1eb6c6df66913065773d510a21750a9ea675b69be46ab245a

SHA512
a71a0b9b265b3c31c01305b121b386b8beb14cb6f670df4cbdad3d2fb7a3b3c508b25b48b253cba4c9aacde77e47fc32481fdc4cfc9221af83ea90ab7a6fc200

Download Submit