kutaki | 382d5c176d59f1da5470bc7f14b7a19364b05c33561c4e7267c190a93ca65176

Analysis

max time kernel
101s
max time network
53s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
30/08/2022, 18:52

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General

Target

State Bank of India Payment.exe
Size

536KB
MD5

b01906f5328bf8df68d9c0e5637ee050
SHA1

9a83caa72c6c86d399acf1da16014a88654ee043
SHA256

b81ce1757e7d279ca226e752baa9422622119a49e8364866b91667301c74e589
SHA512

969c1789142c9ad646c4232e8f46ebf0bae4d0f20ba25d4d30b32a0a263917a65584bc5f2eb4145ead0a80453f168ceae4c4a12078a43fdd2fa504239e2eb036
SSDEEP

6144:1T1htGytvUf4yclQgx7+8DfpedxbKT3F9opcVyFW4Es+CS/wUcvzUjSa5pK2mKd4:TP+8DpFTvodFB4/8vYjDpK8atfx8hDu

Score

10^/10

kutaki keylogger stealer

Malware Config

Extracted

Family

kutaki

http://newbosslink.xyz/baba/new4.php

Signatures

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

Kutaki Executable 3 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012356-58.dat	family_kutaki
behavioral1/files/0x000a000000012356-59.dat	family_kutaki
behavioral1/files/0x000a000000012356-61.dat	family_kutaki

Executes dropped EXE 1 IoCs

pid	Process
1244	ch.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ch.exe	State Bank of India Payment.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ch.exe	State Bank of India Payment.exe

Loads dropped DLL 2 IoCs

pid	Process
1708	State Bank of India Payment.exe
1708	State Bank of India 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 FindShellTrayWindow 1 IoCs

pid	Process
1796	DllHost.exe

Suspicious use of SetWindowsHookEx 64 IoCs

pid	Process
1708	State Bank of India Payment.exe
1708	State Bank of India Payment.exe
1708	State Bank of India Payment.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe
1244	ch.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1708 wrote to memory of 1372	1708	State Bank of India Payment.exe	27
PID 1708 wrote to memory of 1372	1708	State Bank of India Payment.exe	27
PID 1708 wrote to memory of 1372	1708	State Bank of India Payment.exe	27
PID 1708 wrote to memory of 1372	1708	State Bank of India Payment.exe	27
PID 1708 wrote to memory of 1244	1708	State Bank of India Payment.exe	29
PID 1708 wrote to memory of 1244	1708	State Bank of India Payment.exe	29
PID 1708 wrote to memory of 1244	1708	State Bank of India Payment.exe	29
PID 1708 wrote to memory of 1244	1708	State Bank of India Payment.exe	29

C:\Users\Admin\AppData\Local\Temp\State Bank of India Payment.exe
"C:\Users\Admin\AppData\Local\Temp\State Bank of India Payment.exe"
1⤵
- Drops startup file
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1708
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c C:\Users\Admin\AppData\Local\Temp\NewBitmapImage.bmp
  2⤵
  PID:1372
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ch.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ch.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:1244

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- Suspicious use of FindShellTrayWindow
PID:1796

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\ch.exe

Filesize
536KB

MD5
b01906f5328bf8df68d9c0e5637ee050

SHA1
9a83caa72c6c86d399acf1da16014a88654ee043

SHA256
b81ce1757e7d279ca226e752baa9422622119a49e8364866b91667301c74e589

SHA512
969c1789142c9ad646c4232e8f46ebf0bae4d0f20ba25d4d30b32a0a263917a65584bc5f2eb4145ead0a80453f168ceae4c4a12078a43fdd2fa504239e2eb036

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

Filesize
536KB

MD5
b01906f5328bf8df68d9c0e5637ee050

SHA1
9a83caa72c6c86d399acf1da16014a88654ee043

SHA256
b81ce1757e7d279ca226e752baa9422622119a49e8364866b91667301c74e589

SHA512
969c1789142c9ad646c4232e8f46ebf0bae4d0f20ba25d4d30b32a0a263917a65584bc5f2eb4145ead0a80453f168ceae4c4a12078a43fdd2fa504239e2eb036

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

Filesize
536KB

MD5
b01906f5328bf8df68d9c0e5637ee050

SHA1
9a83caa72c6c86d399acf1da16014a88654ee043

SHA256
b81ce1757e7d279ca226e752baa9422622119a49e8364866b91667301c74e589

SHA512
969c1789142c9ad646c4232e8f46ebf0bae4d0f20ba25d4d30b32a0a263917a65584bc5f2eb4145ead0a80453f168ceae4c4a12078a43fdd2fa504239e2eb036

Download Submit
memory/1708-56-0x00000000768D1000-0x00000000768D3000-memory.dmp

Filesize
8KB

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