kutaki | 5945debf94de6bbe53652b019c7f8be2d8bcee36cd0059ca46a2002ccc70c0c2

General

Target

NEAS.237060068077322d5f33bb309259a5c0.exe
Size

693KB
MD5

237060068077322d5f33bb309259a5c0
SHA1

6e480d71feab775e20b16f4aa80fd4bab8d2b65f
SHA256

5945debf94de6bbe53652b019c7f8be2d8bcee36cd0059ca46a2002ccc70c0c2
SHA512

c2660dc7e38bce83596bfb0d0058e98ae8300e08a3981e0d732d0539d49140487ca6f46ab07ffbaa37f8594b115757d25cb16156b214f408caaa2875b7bf58ed
SSDEEP

12288:2zU8Mu2wf+dBzOxgm46A9jmP/uhu/yMS08CkntxYRZL:2w8t2wf+dBTfmP/UDMS08Ckn3M

Score

10^/10

kutaki keylogger stealer

Malware Config

Extracted

Family

kutaki

C2

http://linkwotowoto.club/new/two.php

Signatures

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

Kutaki Executable 2 IoCs

Processes:

resource	yara_rule
behavioral2/files/0x0006000000022e07-5.dat	family_kutaki
behavioral2/files/0x0006000000022e07-6.dat	family_kutaki

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

cmd.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\Control Panel\International\Geo\Nation	cmd.exe

Drops startup file 2 IoCs

Processes:

NEAS.237060068077322d5f33bb309259a5c0.exe

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ljrvoufk.exe	NEAS.237060068077322d5f33bb309259a5c0.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ljrvoufk.exe	NEAS.237060068077322d5f33bb309259a5c0.exe

Executes dropped EXE 1 IoCs

Processes:

ljrvoufk.exe

pid	Process
1324	ljrvoufk.exe

Drops file in Windows directory 1 IoCs

Processes:

mspaint.exe

description	ioc	Process
File opened for modification	C:\Windows\Debug\WIA\wiatrace.log	mspaint.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

Processes:

cmd.exe

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000_Classes\Local Settings	cmd.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

mspaint.exe

pid	Process
4684	mspaint.exe
4684	mspaint.exe

Suspicious use of SetWindowsHookEx 10 IoCs

Processes:

NEAS.237060068077322d5f33bb309259a5c0.exeljrvoufk.exemspaint.exe

pid	Process
3096	NEAS.237060068077322d5f33bb309259a5c0.exe
3096	NEAS.237060068077322d5f33bb309259a5c0.exe
3096	NEAS.237060068077322d5f33bb309259a5c0.exe
1324	ljrvoufk.exe
1324	ljrvoufk.exe
1324	ljrvoufk.exe
4684	mspaint.exe
4684	mspaint.exe
4684	mspaint.exe
4684	mspaint.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

NEAS.237060068077322d5f33bb309259a5c0.execmd.exe

description	pid	Process	procid_target
PID 3096 wrote to memory of 3840	3096	NEAS.237060068077322d5f33bb309259a5c0.exe	90
PID 3096 wrote to memory of 3840	3096	NEAS.237060068077322d5f33bb309259a5c0.exe	90
PID 3096 wrote to memory of 3840	3096	NEAS.237060068077322d5f33bb309259a5c0.exe	90
PID 3096 wrote to memory of 1324	3096	NEAS.237060068077322d5f33bb309259a5c0.exe	92
PID 3096 wrote to memory of 1324	3096	NEAS.237060068077322d5f33bb309259a5c0.exe	92
PID 3096 wrote to memory of 1324	3096	NEAS.237060068077322d5f33bb309259a5c0.exe	92
PID 3840 wrote to memory of 4684	3840	cmd.exe	93
PID 3840 wrote to memory of 4684	3840	cmd.exe	93
PID 3840 wrote to memory of 4684	3840	cmd.exe	93

C:\Users\Admin\AppData\Local\Temp\NEAS.237060068077322d5f33bb309259a5c0.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.237060068077322d5f33bb309259a5c0.exe"
1⤵
- Drops startup file
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3096
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c C:\Users\Admin\AppData\Local\Temp\NewBitmapImage.bmp
  2⤵
  - Checks computer location settings
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:3840
- - C:\Windows\SysWOW64\mspaint.exe
    "C:\Windows\system32\mspaint.exe" "C:\Users\Admin\AppData\Local\Temp\NewBitmapImage.bmp"
    3⤵
    - Drops file in Windows directory
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of SetWindowsHookEx
    PID:4684
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ljrvoufk.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ljrvoufk.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:1324

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s DeviceAssociationService
1⤵
PID:1364

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

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\ljrvoufk.exe

Filesize
693KB

MD5
237060068077322d5f33bb309259a5c0

SHA1
6e480d71feab775e20b16f4aa80fd4bab8d2b65f

SHA256
5945debf94de6bbe53652b019c7f8be2d8bcee36cd0059ca46a2002ccc70c0c2

SHA512
c2660dc7e38bce83596bfb0d0058e98ae8300e08a3981e0d732d0539d49140487ca6f46ab07ffbaa37f8594b115757d25cb16156b214f408caaa2875b7bf58ed

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

Filesize
693KB

MD5
237060068077322d5f33bb309259a5c0

SHA1
6e480d71feab775e20b16f4aa80fd4bab8d2b65f

SHA256
5945debf94de6bbe53652b019c7f8be2d8bcee36cd0059ca46a2002ccc70c0c2

SHA512
c2660dc7e38bce83596bfb0d0058e98ae8300e08a3981e0d732d0539d49140487ca6f46ab07ffbaa37f8594b115757d25cb16156b214f408caaa2875b7bf58ed

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads