kutaki | a7f37926eb21924303d17007e8dd4d87c0bb428d1663a86d24d1ca38442ef845

Analysis

max time kernel
135s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
14-05-2023 09:59

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General

Target

a7f37926eb21924303d17007e8dd4d87c0bb428d1663a86d24d1ca38442ef845.exe
Size

2.4MB
MD5

fe87505c13a6a986885193cb177d4607
SHA1

8d11c69147d8fce75c714d0f7de6a26415facda0
SHA256

a7f37926eb21924303d17007e8dd4d87c0bb428d1663a86d24d1ca38442ef845
SHA512

246854ff69ac1d6c6a734f8243c6a9b20ffd00265a00f5c1230db7ba2e73580af920fe8e8a0402c34da658bc8967b557a9be853bde9c4c1319e9c1a420a2a6fb
SSDEEP

49152:hlkWk5cS7a+9XYaQHZehc4mTYJ78V9gyBn4cbfmP/SA8N:3ajJ4Z942KQV9hp4UfmP/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

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\tuxegifk.exe	a7f37926eb21924303d17007e8dd4d87c0bb428d1663a86d24d1ca38442ef845.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\tuxegifk.exe	a7f37926eb21924303d17007e8dd4d87c0bb428d1663a86d24d1ca38442ef845.exe

Executes dropped EXE 1 IoCs

pid	Process
3544	tuxegifk.exe

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

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1000	a7f37926eb21924303d17007e8dd4d87c0bb428d1663a86d24d1ca38442ef845.exe
1000	a7f37926eb21924303d17007e8dd4d87c0bb428d1663a86d24d1ca38442ef845.exe
1000	a7f37926eb21924303d17007e8dd4d87c0bb428d1663a86d24d1ca38442ef845.exe
3544	tuxegifk.exe
3544	tuxegifk.exe
3544	tuxegifk.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1000 wrote to memory of 5016	1000	a7f37926eb21924303d17007e8dd4d87c0bb428d1663a86d24d1ca38442ef845.exe	83
PID 1000 wrote to memory of 5016	1000	a7f37926eb21924303d17007e8dd4d87c0bb428d1663a86d24d1ca38442ef845.exe	83
PID 1000 wrote to memory of 5016	1000	a7f37926eb21924303d17007e8dd4d87c0bb428d1663a86d24d1ca38442ef845.exe	83
PID 1000 wrote to memory of 3544	1000	a7f37926eb21924303d17007e8dd4d87c0bb428d1663a86d24d1ca38442ef845.exe	85
PID 1000 wrote to memory of 3544	1000	a7f37926eb21924303d17007e8dd4d87c0bb428d1663a86d24d1ca38442ef845.exe	85
PID 1000 wrote to memory of 3544	1000	a7f37926eb21924303d17007e8dd4d87c0bb428d1663a86d24d1ca38442ef845.exe	85

C:\Users\Admin\AppData\Local\Temp\a7f37926eb21924303d17007e8dd4d87c0bb428d1663a86d24d1ca38442ef845.exe
"C:\Users\Admin\AppData\Local\Temp\a7f37926eb21924303d17007e8dd4d87c0bb428d1663a86d24d1ca38442ef845.exe"
1⤵
- Drops startup file
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1000
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c C:\Users\Admin\AppData\Local\Temp\
  2⤵
  PID:5016
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\tuxegifk.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\tuxegifk.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:3544

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

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Downloads

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

Filesize
2.4MB

MD5
fe87505c13a6a986885193cb177d4607

SHA1
8d11c69147d8fce75c714d0f7de6a26415facda0

SHA256
a7f37926eb21924303d17007e8dd4d87c0bb428d1663a86d24d1ca38442ef845

SHA512
246854ff69ac1d6c6a734f8243c6a9b20ffd00265a00f5c1230db7ba2e73580af920fe8e8a0402c34da658bc8967b557a9be853bde9c4c1319e9c1a420a2a6fb

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

Filesize
2.4MB

MD5
fe87505c13a6a986885193cb177d4607

SHA1
8d11c69147d8fce75c714d0f7de6a26415facda0

SHA256
a7f37926eb21924303d17007e8dd4d87c0bb428d1663a86d24d1ca38442ef845

SHA512
246854ff69ac1d6c6a734f8243c6a9b20ffd00265a00f5c1230db7ba2e73580af920fe8e8a0402c34da658bc8967b557a9be853bde9c4c1319e9c1a420a2a6fb

Download Submit