kutaki | d0ea011052ff56385e54f47e5f45ae11792a673d22e45ac16661d214b0ed1009

Analysis

max time kernel
132s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
04/11/2022, 13:10

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General

Target

NEFT_Payment.exe
Size

2.3MB
MD5

d61dd474340f39a91ae57cfd1c997fb0
SHA1

22586db543f8770c767ed89c62d7352e80620d8d
SHA256

4ca11aff38d3d7b79a6ee372e8aab8ac38157965f975f8540065bc67bc116824
SHA512

2df78e05dac0142ce18eb78d0c15f0e7ffcc9a26231603f5ddda6de53d9a17dc7fd0bc55bfeb245e791b5c87e22a0b6dea81b9a830373a41ffe2586cd7f19108
SSDEEP

49152:FlkWk5cS7a+9XYaQhZehc4mTYJ78V9gyBn4cMfmP/SA8N:rajJaZ942KQV9hp47fmP/SA8

Score

10^/10

kutaki keylogger stealer

Malware Config

Extracted

Family

kutaki

http://treysbeatend.com/laptop/squared.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/0x0007000000022f7d-136.dat	family_kutaki
behavioral2/files/0x0007000000022f7d-137.dat	family_kutaki

Executes dropped EXE 1 IoCs

pid	Process
1192	fafjrlfk.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\fafjrlfk.exe	NEFT_Payment.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\fafjrlfk.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
2312	NEFT_Payment.exe
2312	NEFT_Payment.exe
2312	NEFT_Payment.exe
1192	fafjrlfk.exe
1192	fafjrlfk.exe
1192	fafjrlfk.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2312 wrote to memory of 3372	2312	NEFT_Payment.exe	81
PID 2312 wrote to memory of 3372	2312	NEFT_Payment.exe	81
PID 2312 wrote to memory of 3372	2312	NEFT_Payment.exe	81
PID 2312 wrote to memory of 1192	2312	NEFT_Payment.exe	83
PID 2312 wrote to memory of 1192	2312	NEFT_Payment.exe	83
PID 2312 wrote to memory of 1192	2312	NEFT_Payment.exe	83

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:2312
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c C:\Users\Admin\AppData\Local\Temp\
  2⤵
  PID:3372
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\fafjrlfk.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\fafjrlfk.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:1192

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\fafjrlfk.exe

Filesize
2.3MB

MD5
d61dd474340f39a91ae57cfd1c997fb0

SHA1
22586db543f8770c767ed89c62d7352e80620d8d

SHA256
4ca11aff38d3d7b79a6ee372e8aab8ac38157965f975f8540065bc67bc116824

SHA512
2df78e05dac0142ce18eb78d0c15f0e7ffcc9a26231603f5ddda6de53d9a17dc7fd0bc55bfeb245e791b5c87e22a0b6dea81b9a830373a41ffe2586cd7f19108

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

Filesize
2.3MB

MD5
d61dd474340f39a91ae57cfd1c997fb0

SHA1
22586db543f8770c767ed89c62d7352e80620d8d

SHA256
4ca11aff38d3d7b79a6ee372e8aab8ac38157965f975f8540065bc67bc116824

SHA512
2df78e05dac0142ce18eb78d0c15f0e7ffcc9a26231603f5ddda6de53d9a17dc7fd0bc55bfeb245e791b5c87e22a0b6dea81b9a830373a41ffe2586cd7f19108

Download Submit