kutaki | b13a074eedc1b718f0a80e489385aaa2eeb64037b5ee50ea312c6e5260443223

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

Processes:

resource	yara_rule
\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\wskzaech.exe	family_kutaki

Drops startup file 2 IoCs

Processes:

64005098cdb549db3a59ec0c70ebb0ef_JaffaCakes118.exe

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

Processes:

wskzaech.exe

pid process

844 wskzaech.exe
Loads dropped DLL 2 IoCs

Processes:

64005098cdb549db3a59ec0c70ebb0ef_JaffaCakes118.exe

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

Processes:

DllHost.exe

pid process

2544 DllHost.exe

pid	process
844	wskzaech.exe

pid	process
2544	DllHost.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

64005098cdb549db3a59ec0c70ebb0ef_JaffaCakes118.exewskzaech.exe

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

Processes:

64005098cdb549db3a59ec0c70ebb0ef_JaffaCakes118.exe

description	pid	process	target process
PID 1232 wrote to memory of 2908	1232	64005098cdb549db3a59ec0c70ebb0ef_JaffaCakes118.exe	cmd.exe
PID 1232 wrote to memory of 2908	1232	64005098cdb549db3a59ec0c70ebb0ef_JaffaCakes118.exe	cmd.exe
PID 1232 wrote to memory of 2908	1232	64005098cdb549db3a59ec0c70ebb0ef_JaffaCakes118.exe	cmd.exe
PID 1232 wrote to memory of 2908	1232	64005098cdb549db3a59ec0c70ebb0ef_JaffaCakes118.exe	cmd.exe
PID 1232 wrote to memory of 844	1232	64005098cdb549db3a59ec0c70ebb0ef_JaffaCakes118.exe	wskzaech.exe
PID 1232 wrote to memory of 844	1232	64005098cdb549db3a59ec0c70ebb0ef_JaffaCakes118.exe	wskzaech.exe
PID 1232 wrote to memory of 844	1232	64005098cdb549db3a59ec0c70ebb0ef_JaffaCakes118.exe	wskzaech.exe
PID 1232 wrote to memory of 844	1232	64005098cdb549db3a59ec0c70ebb0ef_JaffaCakes118.exe	wskzaech.exe

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

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads