MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 53136295b41cc80088f3d83cb521ed80547903e718cd1cbeefdfefe96d9fb9d9. 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


Kovter


Vendor detections: 10


Intelligence 10 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 53136295b41cc80088f3d83cb521ed80547903e718cd1cbeefdfefe96d9fb9d9
SHA3-384 hash: 73af4098de618caaca24b6c201838c4d647a0a11f34a659cff87770cebfdc8c0ec2563984716d2aa88d5496483776805
SHA1 hash: f245f44cfcd0ca76f8572522470975b27359ea6a
MD5 hash: d80155544246743983049d44e349497e
humanhash: sweet-iowa-sad-one
File name:20230517d80155544246743983049d44e349497ekovter
Download: download sample
Signature Kovter
Create hunting rule
File size:436'736 bytes
First seen:2023-05-18 13:48:20 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 6144:5D4k41Vb8gyZVmVK+dA0q/3DdERJ5pqaFedCUg8JgfMW+R5AJz+v8BW5:5eb8gyzmVplJxGJg8Jgh+Q8
TLSH T186944A36F240E237D82618BC8D0FE3D56579F2302D34AC5BB6E51F4D48B56936A2BA43
TrID 25.8% (.EXE) Win64 Executable (generic) (10523/12/4)
24.6% (.EXE) DOS Borland compiled Executable (generic) (10000/1/2)
16.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
11.0% (.EXE) Win32 Executable (generic) (4505/5/1)
7.3% (.MZP) WinArchiver Mountable compressed Archive (3000/1)
Reporter JaffaCakes118
Tags:Kovter

Intelligence

File Origin
# of uploads :
1
# of downloads :
91
Origin country :
GB GB
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
20230517d80155544246743983049d44e349497ekovter
Verdict:
No threats detected
Analysis date:
2023-05-18 18:18:24 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/8a4d7814-89ed-4450-aca9-d282d5275156

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
PUA.Win.Packer.BorlandDelphi-5
Create hunting rule

PUA.Win.Packer.BorlandDelphi-6
Create hunting rule

Win.Packed.Alphaeon-9783095-0
Create hunting rule

Win.Trojan.Alphaeon-9830893-0
Create hunting rule

Win.Trojan.Kovter-6489152-1
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Sending a custom TCP request
Gathering data
Verdict:
Malicious
Labled as:
Zusy.Generic
Link:
https://www.hybrid-analysis.com/sample/53136295b41cc80088f3d83cb521ed80547903e718cd1cbeefdfefe96d9fb9d9
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:
Kovter
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/89e024e5-744d-4b41-813c-949bad0dc1e1
Result
Threat name:
Kovter
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/1236621
Signature
Antivirus / Scanner detection for submitted sample
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected Kovter
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/53136295b41cc80088f3d83cb521ed80547903e718cd1cbeefdfefe96d9fb9d9/
Threat name:
Win32.Trojan.Zusy
Create hunting rule
Status:
Malicious
First seen:
2023-05-17 17:12:41 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kmjwffnudteabcht3a6lkipnqbkhsa7hddgrzpxp37x6s3m7xhmq._file
Result
Malware family:
modiloader
Create hunting rule
Score:
  10/10
Tags:
family:modiloader
Link:
https://tria.ge/reports/230518-q4v2vabf69/
Behaviour
Program crash
Unpacked files
SH256 hash:
53136295b41cc80088f3d83cb521ed80547903e718cd1cbeefdfefe96d9fb9d9
MD5 hash:
d80155544246743983049d44e349497e
SHA1 hash:
f245f44cfcd0ca76f8572522470975b27359ea6a
Detections:
win_kovter_auto
Create hunting rule
win_kovter_g0
Create hunting rule
win_kovter_a0
Create hunting rule
Link:
https://www.unpac.me/results/acb1dce1-de73-445f-81e2-41747324d467/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.60
Link:
https://yomi.yoroi.company/submissions/53136295b41cc80088f3d83cb521ed80547903e718cd1cbeefdfefe96d9fb9d9

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:Kovter
Create hunting rule
Author:kevoreilly
Description:Kovter Payload
Rule name:meth_peb_parsing
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Win32_Ransomware_Kovter
Create hunting rule
Author:ReversingLabs
Description:Yara rule that detects Kovter ransomware.
Rule name:win_kovter_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Comments