MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 dc90482c940a4ab897dcb64e468ccc1767ce48c249755bb625d4e48e718edfd6. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.
Database Entry
Kutaki
Vendor detections: 13
| SHA256 hash: | dc90482c940a4ab897dcb64e468ccc1767ce48c249755bb625d4e48e718edfd6 |
|---|---|
| SHA3-384 hash: | 2a2c4f38b6c24f4e529aa575038b2c8b9e0d8d74fbc50847bbed90ad8a69f147b6e262bbb1a9c141d54ad0e037ed60da |
| SHA1 hash: | b2cf04e7983a1ed5b378475cfdf215b52de8d1ff |
| MD5 hash: | 0692f7369ad0e05cb31e083aefba8e1c |
| humanhash: | fillet-ohio-west-july |
| File name: | IncomeTax_PaymentReceipt.exe |
| Download: | download sample |
| Signature | Kutaki |
| File size: | 1'314'816 bytes |
| First seen: | 2022-02-11 12:01:01 UTC |
| Last seen: | 2022-02-11 13:55:10 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | a6beae09e67e8866275dc391ea8015bf (1 x Kutaki) |
| ssdeep | 12288:sHoX5kPVVKaURHSHOPhUVULpsS6s46A9jmP/uhu/yMS08CkntxYRh:4oXGPVVKaURz2VUNMfmP/UDMS08Ckn3Y |
| Threatray | 5'019 similar samples on MalwareBazaar |
| TLSH | T17F550933DE056209D43241B3A819965978202C38B04A5867F7C2BE4E3676DF3ADF5B6F |
| File icon (PE): |  |
| dhash icon | 1003873d31213f10 (142 x DarkCloud, 132 x GuLoader, 35 x a310Logger) |
| Reporter |  malwarelabnet |
| Tags: | exe Kutaki |
Intelligence
File Origin
# of uploads :
2
# of downloads :
242
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
https://piousvision.com/common/IncomeTax_PaymentReceipt.zip
Verdict:
No threats detected
Analysis date:
2022-02-11 09:41:49 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Kutaki
Result
Verdict:
Malware
Maliciousness:
Behaviour
Сreating synchronization primitives
Creating a window
Using the Windows Management Instrumentation requests
Running batch commands
Creating a process with a hidden window
Creating a process from a recently created file
Searching for the window
Sending a custom TCP request
DNS request
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
anti-vm cmd.exe control.exe keylogger kutaki networm packed shell32.dll update.exe
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Kutaki
Verdict:
Malicious
Result
Threat name:
Kutaki
Detection:
malicious
Classification:
rans.adwa.spyw.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Drops PE files to the startup folder
Initial sample is a PE file and has a suspicious name
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Potential malicious icon found
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Yara detected Kutaki Keylogger
Behaviour
Behavior Graph:
Threat name:
Win32.Spyware.Kutaki
Status:
Malicious
First seen:
2022-02-11 12:01:10 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
20 of 28 (71.43%)
Threat level:
2/5
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
+ 5'009 additional samples on MalwareBazaar
Result
Malware family:
kutaki
Score:
10/10
Tags:
family:kutaki keylogger stealer
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops file in Windows directory
Drops startup file
Loads dropped DLL
Executes dropped EXE
Kutaki
Kutaki Executable
Suspicious use of NtCreateProcessExOtherParentProcess
Unpacked files
SH256 hash:
dc90482c940a4ab897dcb64e468ccc1767ce48c249755bb625d4e48e718edfd6
MD5 hash:
0692f7369ad0e05cb31e083aefba8e1c
SHA1 hash:
b2cf04e7983a1ed5b378475cfdf215b52de8d1ff
Detections:
win_kutaki_auto
Please note that we are no longer able to provide a coverage score for Virus Total.
YARA Signatures
MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.
| Rule name: | exec_macros |
|---|---|
| Author: | ddvvmmzz |
| Description: | exec macros |
| Rule name: | MALWARE_Win_Kutaki |
|---|---|
| Author: | ditekSHen |
| Description: | Detects Kutaki |
| Rule name: | win_kutaki_auto |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | Detects win.kutaki. |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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