MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ed8534bd6aa40b9c0af7f68fe82154b3e7f0a82ecb05189a2de9884521f963a5. 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: 11


Intelligence 11 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ed8534bd6aa40b9c0af7f68fe82154b3e7f0a82ecb05189a2de9884521f963a5
SHA3-384 hash: cae699721c10ffcfeab9267c9afbf15af777499ad0ef56ed6d38dea983bedb1e376aa40fdc96d9327be7fa6124696539
SHA1 hash: 40b520982a8e9e79c39eec75d3b62d685b8946e5
MD5 hash: 7558689ffc3f6a0da8e35d8f257c86bb
humanhash: red-oxygen-texas-blossom
File name:Payment Confirmation.exe
Download: download sample
Signature Kutaki
Create hunting rule
File size:636'114 bytes
First seen:2023-01-13 14:59:54 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash dceabeaf492b36987f5367e43448ceda (1 x Kutaki)
ssdeep 12288:/GDq0pDRbx37mEZBVlUvE46A9jmP/uhu/yMS08CkntxYRXL:/GDq05R1rmEZBQfmP/UDMS08Ckn3y
TLSH T163D48B07E210F11EE853C0B0A965F79A18297CB60190AD57B781BE8EB5762D3B8F471F
TrID 74.4% (.EXE) Win32 Executable Microsoft Visual Basic 6 (82067/2/8)
9.5% (.EXE) Win64 Executable (generic) (10523/12/4)
4.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.0% (.EXE) Win32 Executable (generic) (4505/5/1)
1.8% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 8007c6888c8990b2 (2 x DanaBot, 2 x RemcosRAT, 2 x Wapomi)
Reporter 0xToxin
Tags:exe Kutaki

Intelligence

File Origin
# of uploads :
1
# of downloads :
185
Origin country :
IL IL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
http://zynna.in/.well-known/prt.htm
Verdict:
Malicious activity
Analysis date:
2023-01-13 05:39:47 UTC
Tags:
opendir kutaki
Link:
https://app.any.run/tasks/157b4368-8ce8-4b71-9dd6-44197332756f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/352641/
Detection(s):
SecuriteInfo.com.Trojan.VbCrypt.250.1073.14292.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
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
Launching a process
Searching for synchronization primitives
Sending a custom TCP request
Launching a service
Creating a file
Changing a file
Delayed writing of the file
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
80%
Tags:
anti-debug anti-vm greyware overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63c17215acfeda6ef9c3366c/reports/ef25caf5-07e5-46c4-ba35-9bcef96bd571/overview
Result
Verdict:
UNKNOWN
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d1f177f3-b791-479f-8dda-2311f4683ce4
Result
Threat name:
Kutaki
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1151193
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
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
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Yara detected Kutaki Keylogger
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 783927 Sample: Payment Confirmation.exe Startdate: 13/01/2023 Architecture: WINDOWS Score: 100 23 newbosslink.xyz/baba/new4.php unknown unknown 2->23 25 Antivirus detection for dropped file 2->25 27 Antivirus / Scanner detection for submitted sample 2->27 29 Multi AV Scanner detection for dropped file 2->29 31 8 other signatures 2->31 8 Payment Confirmation.exe 1 2 2->8         started        11 oeluxvfk.exe 2->11         started        signatures3 process4 file5 21 C:\Users\user\AppData\...\oeluxvfk.exe, PE32 8->21 dropped 13 oeluxvfk.exe 1 8->13         started        15 cmd.exe 2 8->15         started        process6 process7 17 WerFault.exe 13->17         started        19 conhost.exe 15->19         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ed8534bd6aa40b9c0af7f68fe82154b3e7f0a82ecb05189a2de9884521f963a5/
Threat name:
Win32.Trojan.Woreflint
Create hunting rule
Status:
Malicious
First seen:
2023-01-13 10:17:27 UTC
File Type:
PE (Exe)
Extracted files:
20
AV detection:
24 of 38 (63.16%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=5wctjplkuqfzycxx62h6qikuwpt7bkbozmcrrgrn5geekipzmosq._file
Verdict:
malicious
Result
Malware family:
kutaki
Create hunting rule
Score:
  10/10
Tags:
family:kutaki keylogger stealer
Link:
https://tria.ge/reports/230113-sdchxsde2t/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Windows directory
Checks computer location settings
Drops startup file
Loads dropped DLL
Executes dropped EXE
Kutaki
Kutaki Executable
Malware Config
C2 Extraction:
http://newbosslink.xyz/baba/new4.php
Unpacked files
SH256 hash:
ed8534bd6aa40b9c0af7f68fe82154b3e7f0a82ecb05189a2de9884521f963a5
MD5 hash:
7558689ffc3f6a0da8e35d8f257c86bb
SHA1 hash:
40b520982a8e9e79c39eec75d3b62d685b8946e5
Detections:
win_kutaki_auto
Create hunting rule
Link:
https://www.unpac.me/results/2c4d895a-d809-4e0e-a089-d4ce80352d29/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.34
Link:
https://yomi.yoroi.company/submissions/ed8534bd6aa40b9c0af7f68fe82154b3e7f0a82ecb05189a2de9884521f963a5

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:win_kutaki_auto
Create hunting rule
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.

Cape
Cape
https://www.capesandbox.com/analysis/352641/

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