kutaki | b13a074eedc1b718f0a80e489385aaa2eeb64037b5ee50ea312c6e5260443223

Analysis

max time kernel
120s
max time network
119s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
21-05-2024 16:41

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

64005098cdb549db3a59ec0c70ebb0ef_JaffaCakes118.exe
Size

748KB
MD5

64005098cdb549db3a59ec0c70ebb0ef
SHA1

f4fde59d77df47195751a16e6a9e88c9feef7c9a
SHA256

b13a074eedc1b718f0a80e489385aaa2eeb64037b5ee50ea312c6e5260443223
SHA512

6ea86e803d6730344930bf8123d8278adc4633ff1d14e23efad1962e7cf0ee57171af7344aac6b3e471f2da5d640cd9594403b7674c343c5dc8718eeeca9294d
SSDEEP

12288:OCVVVVVVVf8g1ufKr43yABrn9rxVGB7SLCY1J1kGl8V3eZsemDhkJ0:OEk9n9rxVG96r1/kGlVZshDhw0

Score

10^/10

kutaki keylogger stealer

Malware Config

Signatures

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

Kutaki Executable 1 IoCs

resource	yara_rule
behavioral1/files/0x0038000000014349-58.dat	family_kutaki

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\wskzaech.exe	64005098cdb549db3a59ec0c70ebb0ef_JaffaCakes118.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\wskzaech.exe	64005098cdb549db3a59ec0c70ebb0ef_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
844	wskzaech.exe

Loads dropped DLL 2 IoCs

pid	Process
1232	64005098cdb549db3a59ec0c70ebb0ef_JaffaCakes118.exe
1232	64005098cdb549db3a59ec0c70ebb0ef_JaffaCakes118.exe

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

System Information Discovery
T1082

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2544	DllHost.exe

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
1232	64005098cdb549db3a59ec0c70ebb0ef_JaffaCakes118.exe
1232	64005098cdb549db3a59ec0c70ebb0ef_JaffaCakes118.exe
1232	64005098cdb549db3a59ec0c70ebb0ef_JaffaCakes118.exe
844	wskzaech.exe
844	wskzaech.exe
844	wskzaech.exe
844	wskzaech.exe
844	wskzaech.exe
844	wskzaech.exe
844	wskzaech.exe
844	wskzaech.exe
844	wskzaech.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1232 wrote to memory of 2908	1232	64005098cdb549db3a59ec0c70ebb0ef_JaffaCakes118.exe	29
PID 1232 wrote to memory of 2908	1232	64005098cdb549db3a59ec0c70ebb0ef_JaffaCakes118.exe	29
PID 1232 wrote to memory of 2908	1232	64005098cdb549db3a59ec0c70ebb0ef_JaffaCakes118.exe	29
PID 1232 wrote to memory of 2908	1232	64005098cdb549db3a59ec0c70ebb0ef_JaffaCakes118.exe	29
PID 1232 wrote to memory of 844	1232	64005098cdb549db3a59ec0c70ebb0ef_JaffaCakes118.exe	32
PID 1232 wrote to memory of 844	1232	64005098cdb549db3a59ec0c70ebb0ef_JaffaCakes118.exe	32
PID 1232 wrote to memory of 844	1232	64005098cdb549db3a59ec0c70ebb0ef_JaffaCakes118.exe	32
PID 1232 wrote to memory of 844	1232	64005098cdb549db3a59ec0c70ebb0ef_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\64005098cdb549db3a59ec0c70ebb0ef_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\64005098cdb549db3a59ec0c70ebb0ef_JaffaCakes118.exe"
1⤵
- Drops startup file
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1232
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c C:\Users\Admin\AppData\Local\Temp\images1.png
  2⤵
  PID:2908
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\wskzaech.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\wskzaech.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:844

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- Suspicious use of FindShellTrayWindow
PID:2544

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\images1.png

Filesize
6KB

MD5
f1ab43700b61ae6e48467a110e90d938

SHA1
174f91b4a63c5a5845505b596d6b07a24ff15bf1

SHA256
c1e70ccc77814c75cd89309d12cdfdc8ebc79c6c1fb1b7dea8d77c4472a27663

SHA512
93d9828fc64b8ce554b431d7b5dbd96cce57e9e73af8492320db1f1e788e314d738d71ab40d2e0b0873984c917bf089ffa996fbf0ca696eeb135bc4265caa4d5

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

Filesize
748KB

MD5
64005098cdb549db3a59ec0c70ebb0ef

SHA1
f4fde59d77df47195751a16e6a9e88c9feef7c9a

SHA256
b13a074eedc1b718f0a80e489385aaa2eeb64037b5ee50ea312c6e5260443223

SHA512
6ea86e803d6730344930bf8123d8278adc4633ff1d14e23efad1962e7cf0ee57171af7344aac6b3e471f2da5d640cd9594403b7674c343c5dc8718eeeca9294d

Download Submit
memory/2544-54-0x00000000002C0000-0x00000000002C2000-memory.dmp

Filesize
8KB

Download
memory/2908-53-0x00000000002B0000-0x00000000002B2000-memory.dmp

Filesize
8KB

Download