kutaki | 037a3742bb8812078421e1b8e822d1e358cb3fccaa3d3fc2cd67d99d303e958f

Analysis

max time kernel
151s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
04/11/2022, 13:18

Target

IncomeTaxPaymentChallan.exe
Size

737KB
MD5

97f31e6d14a85c59b121126c5732d4d7
SHA1

2e04c17a218c45552e3127fadb7eab45e138e83a
SHA256

037a3742bb8812078421e1b8e822d1e358cb3fccaa3d3fc2cd67d99d303e958f
SHA512

a7bf2db806a27dffc82346ca03c503f567216692698f840cc16ba544d7c3c7edf590b2941c2a3c0b38424e48479de40859d2c60b7269e5764f25c277d49544cf
SSDEEP

12288:/4y86ukvYbVYb3YM5YdTT6WYuazYB46A9jmP/uhu/yMS08CkntxYR3VOL:/Xdvb3YM5Nzy6fmP/UDMS08Ckn3H

Score

10^/10

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

Kutaki Executable 2 IoCs

resource	yara_rule
behavioral2/files/0x000900000001da19-136.dat	family_kutaki
behavioral2/files/0x000900000001da19-137.dat	family_kutaki

Executes dropped EXE 1 IoCs

pid	Process
2216	vzwuxvfk.exe

Drops startup file 2 IoCs

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

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4956	IncomeTaxPaymentChallan.exe
4956	IncomeTaxPaymentChallan.exe
4956	IncomeTaxPaymentChallan.exe
2216	vzwuxvfk.exe
2216	vzwuxvfk.exe
2216	vzwuxvfk.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4956 wrote to memory of 1448	4956	IncomeTaxPaymentChallan.exe	80
PID 4956 wrote to memory of 1448	4956	IncomeTaxPaymentChallan.exe	80
PID 4956 wrote to memory of 1448	4956	IncomeTaxPaymentChallan.exe	80
PID 4956 wrote to memory of 2216	4956	IncomeTaxPaymentChallan.exe	83
PID 4956 wrote to memory of 2216	4956	IncomeTaxPaymentChallan.exe	83
PID 4956 wrote to memory of 2216	4956	IncomeTaxPaymentChallan.exe	83

C:\Users\Admin\AppData\Local\Temp\IncomeTaxPaymentChallan.exe
"C:\Users\Admin\AppData\Local\Temp\IncomeTaxPaymentChallan.exe"
1⤵
- Drops startup file
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4956
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c C:\Users\Admin\AppData\Local\Temp\
  2⤵
  PID:1448
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\vzwuxvfk.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\vzwuxvfk.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:2216

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

Filesize
737KB

MD5
97f31e6d14a85c59b121126c5732d4d7

SHA1
2e04c17a218c45552e3127fadb7eab45e138e83a

SHA256
037a3742bb8812078421e1b8e822d1e358cb3fccaa3d3fc2cd67d99d303e958f

SHA512
a7bf2db806a27dffc82346ca03c503f567216692698f840cc16ba544d7c3c7edf590b2941c2a3c0b38424e48479de40859d2c60b7269e5764f25c277d49544cf

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

Filesize
737KB

MD5
97f31e6d14a85c59b121126c5732d4d7

SHA1
2e04c17a218c45552e3127fadb7eab45e138e83a

SHA256
037a3742bb8812078421e1b8e822d1e358cb3fccaa3d3fc2cd67d99d303e958f

SHA512
a7bf2db806a27dffc82346ca03c503f567216692698f840cc16ba544d7c3c7edf590b2941c2a3c0b38424e48479de40859d2c60b7269e5764f25c277d49544cf

Download Submit