MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 df1935d540ce8d1f55ed848c136adc051dab8dcfc57224199ab0ba7d3f0149fd. 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: 12

Intelligence 12 IOCs YARA 6 File information Comments

SHA256 hash:	df1935d540ce8d1f55ed848c136adc051dab8dcfc57224199ab0ba7d3f0149fd
SHA3-384 hash:	d1379b564ed9b9dd3bebb082967d0b395841e76938a0e7a0a47f85c596e5b6a05b4b7729491b5301eaa1d3220d72223e
SHA1 hash:	5582e901814911f74ede55e842da87b93deb6cd1
MD5 hash:	20a03aadb47381c70081f40d8ef9083a
humanhash:	edward-bacon-low-island
File name:	2023-05-11_20a03aadb47381c70081f40d8ef9083a_kovter
Download:	download sample
Signature	Kovter Create hunting rule
File size:	370'688 bytes
First seen:	2023-05-12 05:10:50 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
ssdeep	6144:Qi29PvkB6uJOCfJYg/aYkbNu0ysmhZRa7UrJBbdQtyh/j5l9ZYWQBqy0x:129Pvw99JXQiZfrvjj9CWjh
Threatray	54 similar samples on MalwareBazaar
TLSH	T18F743935F240E677E4329CB8AC0FD2E56529B6302E391D57B6E52F0C48F5183AA1BB47
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	petikvx

Intelligence

File Origin

# of uploads :

# of downloads :

111

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

2023-05-11_20a03aadb47381c70081f40d8ef9083a_kovter

Verdict:

No threats detected

Analysis date:

2023-05-12 05:41:47 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/5ac06ada-5f69-4140-a787-1e4f65fc064b

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection:

Kovter

Link:

https://www.capesandbox.com/analysis/388597/

Detection(s):

PUA.Win.Packer.BorlandDelphi-5

PUA.Win.Packer.BorlandDelphi-6

PUA.Win.Packer.PrivateExeProte-11

Win.Trojan.Kovter-6489152-1

Result

Verdict:

Clean

Maliciousness:

Behaviour

Searching for the window

Searching for synchronization primitives

Launching the default Windows debugger (dwwin.exe)

Sending a custom TCP request

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

exploit kovter packed ransomware shell32.dll

Link:

https://www.filescan.io/uploads/645dca7996ddf41720108208/reports/bc4b05c6-72f9-465d-bf57-0b7648bfc175/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/df1935d540ce8d1f55ed848c136adc051dab8dcfc57224199ab0ba7d3f0149fd

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

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/b08fd02a-c234-4c19-9bd4-9a7f2fa695b8

Result

Threat name:

DBatLoader, Kovter

Detection:

malicious

Classification:

troj

Score:

84 / 100

Link:

https://www.joesandbox.com/analysis/1231407

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 DBatLoader

Yara detected Kovter

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/df1935d540ce8d1f55ed848c136adc051dab8dcfc57224199ab0ba7d3f0149fd/

Threat name:

Win32.Trojan.Alphaeon

Status:

Malicious

First seen:

2023-05-10 16:27:35 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

27 of 37 (72.97%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=34mtlvkaz2gr6vpnqsgbg2w4auo2xdopyvzcigm2wc5h2pybjh6q._file

Verdict:

malicious

Result

Malware family:

modiloader

Score:

10/10

Tags:

family:modiloader

Link:

https://tria.ge/reports/230512-fvadnseb3x/

Behaviour

Program crash

Unpacked files

SH256 hash:

df1935d540ce8d1f55ed848c136adc051dab8dcfc57224199ab0ba7d3f0149fd

MD5 hash:

20a03aadb47381c70081f40d8ef9083a

SHA1 hash:

5582e901814911f74ede55e842da87b93deb6cd1

Detections:

win_kovter_auto

Link:

https://www.unpac.me/results/dbc76794-0709-4842-a932-143cf58a5105/

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:	aPLib_decompression Create hunting rule
Author:	@r3c0nst
Description:	Detects aPLib decompression code often used in malware
Reference:	https://ibsensoftware.com/files/aPLib-1.1.1.zip

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:	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.

Cape

https://www.capesandbox.com/analysis/388597/

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