kutaki | f04ddd1ef19ab0ed436a554d95368055d9c6fae6f156710570a7423bad9e9929

General

Target

262393553d01d6f0834416d382cf6480N.exe
Size

689KB
MD5

262393553d01d6f0834416d382cf6480
SHA1

c6d04c2a5eb7694db7c75e703ee65dfb89fbae5d
SHA256

f04ddd1ef19ab0ed436a554d95368055d9c6fae6f156710570a7423bad9e9929
SHA512

92bd413af398d0e08ceba2e73eb2fdc0a65aa01351bf1e04fe690981c05d7a7692a096b474f45aa0fb455cf93bc8bc4ea0103e930350a538f134edcc1c56a69d
SSDEEP

12288:Ed+J+IF3iIj6I4ClL7y446A9jmP/uhu/yMS08CkntxYRfL:1+HIefw7ofmP/UDMS08Ckn36

Score

10^/10

kutaki discovery keylogger stealer

Malware Config

Extracted

Family

kutaki

C2

http://newlinkwotolove.club/love/three.php

Signatures

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

Kutaki Executable 1 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\kgnvezfk.exe	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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation cmd.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	cmd.exe

Drops startup file 2 IoCs

Processes:

262393553d01d6f0834416d382cf6480N.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\kgnvezfk.exe	262393553d01d6f0834416d382cf6480N.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\kgnvezfk.exe	262393553d01d6f0834416d382cf6480N.exe

Executes dropped EXE 1 IoCs

Processes:

kgnvezfk.exe

pid process

1980 kgnvezfk.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

pid	process
1980	kgnvezfk.exe

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

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

262393553d01d6f0834416d382cf6480N.exekgnvezfk.execmd.exemspaint.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	262393553d01d6f0834416d382cf6480N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kgnvezfk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mspaint.exe

Modifies registry class 1 IoCs

Processes:

cmd.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000_Classes\Local Settings cmd.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

mspaint.exe

pid process

5000 mspaint.exe
5000 mspaint.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000_Classes\Local Settings	cmd.exe

pid	process
5000	mspaint.exe
5000	mspaint.exe

Suspicious use of SetWindowsHookEx 10 IoCs

Processes:

262393553d01d6f0834416d382cf6480N.exekgnvezfk.exemspaint.exe

pid	process
5052	262393553d01d6f0834416d382cf6480N.exe
5052	262393553d01d6f0834416d382cf6480N.exe
5052	262393553d01d6f0834416d382cf6480N.exe
1980	kgnvezfk.exe
1980	kgnvezfk.exe
1980	kgnvezfk.exe
5000	mspaint.exe
5000	mspaint.exe
5000	mspaint.exe
5000	mspaint.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

262393553d01d6f0834416d382cf6480N.execmd.exe

description	pid	process	target process
PID 5052 wrote to memory of 8	5052	262393553d01d6f0834416d382cf6480N.exe	cmd.exe
PID 5052 wrote to memory of 8	5052	262393553d01d6f0834416d382cf6480N.exe	cmd.exe
PID 5052 wrote to memory of 8	5052	262393553d01d6f0834416d382cf6480N.exe	cmd.exe
PID 5052 wrote to memory of 1980	5052	262393553d01d6f0834416d382cf6480N.exe	kgnvezfk.exe
PID 5052 wrote to memory of 1980	5052	262393553d01d6f0834416d382cf6480N.exe	kgnvezfk.exe
PID 5052 wrote to memory of 1980	5052	262393553d01d6f0834416d382cf6480N.exe	kgnvezfk.exe
PID 8 wrote to memory of 5000	8	cmd.exe	mspaint.exe
PID 8 wrote to memory of 5000	8	cmd.exe	mspaint.exe
PID 8 wrote to memory of 5000	8	cmd.exe	mspaint.exe

C:\Users\Admin\AppData\Local\Temp\262393553d01d6f0834416d382cf6480N.exe
"C:\Users\Admin\AppData\Local\Temp\262393553d01d6f0834416d382cf6480N.exe"
1⤵
- Drops startup file
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5052
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c C:\Users\Admin\AppData\Local\Temp\NewBitmapImage.bmp
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:8
- - C:\Windows\SysWOW64\mspaint.exe
    "C:\Windows\system32\mspaint.exe" "C:\Users\Admin\AppData\Local\Temp\NewBitmapImage.bmp"
    3⤵
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of SetWindowsHookEx
    PID:5000
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\kgnvezfk.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\kgnvezfk.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:1980

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s DeviceAssociationService
1⤵
PID:2960

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
689KB

MD5
262393553d01d6f0834416d382cf6480

SHA1
c6d04c2a5eb7694db7c75e703ee65dfb89fbae5d

SHA256
f04ddd1ef19ab0ed436a554d95368055d9c6fae6f156710570a7423bad9e9929

SHA512
92bd413af398d0e08ceba2e73eb2fdc0a65aa01351bf1e04fe690981c05d7a7692a096b474f45aa0fb455cf93bc8bc4ea0103e930350a538f134edcc1c56a69d

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads