kutaki | 529324b39de6f6a2a6095479f4dc4fe1856809b2eb60924ea3ab9592bf655a1e

Analysis

max time kernel
142s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20231020-en
resource tags

arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
submitted
27-10-2023 09:48

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General

Target

HDFC_RTGS.exe
Size

1.5MB
MD5

30adcb75b8ce11e32915d329f4292854
SHA1

cda01ae84ef0b9688f8911de661f1adec108a73b
SHA256

8de3fb617df36b4e33432d30ea4fc626c968421d594b0b5102f8d9b1fbb8fbdf
SHA512

d7d21d2a64719ac10e8818b2b775caa83a56e11e198cc60b28036a5631d7121b8d2dc777893d862a47caccee006ccb014e2f810229cf1b36d6492da9e2b031ef
SSDEEP

24576:XMjlxu1t+S0kLaSW/u/a+DzovnwNnxV/gb7e2AsvwbR281z+zfmP/UDMS08Ckn30:ulAR0kL1t8nO/CAsn81z+zfmP/SA8NE

Score

10^/10

kutaki keylogger stealer

Malware Config

Extracted

Family

kutaki

http://ojorobia.club/laptop/laptop.php

http://terebinnahicc.club/sec/kool.txt

Signatures

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

Kutaki Executable 2 IoCs

Processes:

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

Drops startup file 2 IoCs

Processes:

HDFC_RTGS.exe

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

Executes dropped EXE 1 IoCs

Processes:

vgklugch.exe

pid process

2056 vgklugch.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

HDFC_RTGS.exevgklugch.exe

pid process

1944 HDFC_RTGS.exe
1944 HDFC_RTGS.exe
1944 HDFC_RTGS.exe
2056 vgklugch.exe
2056 vgklugch.exe
2056 vgklugch.exe

pid	process
2056	vgklugch.exe

pid	process
1944	HDFC_RTGS.exe
1944	HDFC_RTGS.exe
1944	HDFC_RTGS.exe
2056	vgklugch.exe
2056	vgklugch.exe
2056	vgklugch.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

HDFC_RTGS.exe

description	pid	process	target process
PID 1944 wrote to memory of 1904	1944	HDFC_RTGS.exe	cmd.exe
PID 1944 wrote to memory of 1904	1944	HDFC_RTGS.exe	cmd.exe
PID 1944 wrote to memory of 1904	1944	HDFC_RTGS.exe	cmd.exe
PID 1944 wrote to memory of 2056	1944	HDFC_RTGS.exe	vgklugch.exe
PID 1944 wrote to memory of 2056	1944	HDFC_RTGS.exe	vgklugch.exe
PID 1944 wrote to memory of 2056	1944	HDFC_RTGS.exe	vgklugch.exe

C:\Users\Admin\AppData\Local\Temp\HDFC_RTGS.exe
"C:\Users\Admin\AppData\Local\Temp\HDFC_RTGS.exe"
1⤵
- Drops startup file
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1944

C:\Windows\SysWOW64\cmd.exe
cmd.exe /c C:\Users\Admin\AppData\Local\Temp\
2⤵
PID:1904

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\vgklugch.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\vgklugch.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:2056

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

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\vgklugch.exe
Filesize
1.5MB

MD5
30adcb75b8ce11e32915d329f4292854

SHA1
cda01ae84ef0b9688f8911de661f1adec108a73b

SHA256
8de3fb617df36b4e33432d30ea4fc626c968421d594b0b5102f8d9b1fbb8fbdf

SHA512
d7d21d2a64719ac10e8818b2b775caa83a56e11e198cc60b28036a5631d7121b8d2dc777893d862a47caccee006ccb014e2f810229cf1b36d6492da9e2b031ef

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\vgklugch.exe
Filesize
1.5MB

MD5
30adcb75b8ce11e32915d329f4292854

SHA1
cda01ae84ef0b9688f8911de661f1adec108a73b

SHA256
8de3fb617df36b4e33432d30ea4fc626c968421d594b0b5102f8d9b1fbb8fbdf

SHA512
d7d21d2a64719ac10e8818b2b775caa83a56e11e198cc60b28036a5631d7121b8d2dc777893d862a47caccee006ccb014e2f810229cf1b36d6492da9e2b031ef

Download Submit