MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f5062c65d9fc8b3acb66da956d62c0119bd9f78b9029b2a52bc2d84be41bc86f. 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

Vidar

Vendor detections: 8

Intelligence 8 IOCs YARA 23 File information Comments

SHA256 hash:	f5062c65d9fc8b3acb66da956d62c0119bd9f78b9029b2a52bc2d84be41bc86f
SHA3-384 hash:	d8f50697cb8313f6460a5e7cadfcf630bf40987ca39aecc0c74c85bf4ccecd4e2275ae890e0ecfe0b294b21be96b628d
SHA1 hash:	10240830ab2c07746b8af9bcf3592b76f021e8fd
MD5 hash:	b970f8ea65c2ce8b4dbedc766e94024f
humanhash:	cup-eighteen-mockingbird-carpet
File name:	oStarteZ.zip
Download:	download sample
Signature	Vidar Create hunting rule
File size:	2'744'760 bytes
First seen:	2025-10-27 19:16:15 UTC
Last seen:	Never
File type:	zip
MIME type:	application/zip
ssdeep	24576:HziHgBkQ3g1NVwc5s+RG+5ovs63zg/oS9qi5wG4lN7agiNI+m9QYZKU9:HzAgBkB/Vwci+I5vs2tSMiaXQ6bE8
TLSH	T15DC52FA09533C661EFAF60AC503A53D583814E72C5F8ACF8F3B5760DD3297D6582AAD0
Magika	zip
Reporter	burger
Tags:	file-pumped vidar zip

Intelligence

File Origin

# of uploads :

# of downloads :

171

Origin country :

File Archive Information

This file archive contains 1 file(s), sorted by their relevance:

File name:	oStarteZ.exe
Pumped file	This file is pumped. MalwareBazaar has de-pumped it.
File size:	924'548'608 bytes
SHA256 hash:	e5fa5629d8fa539e8b2358732948995264eea6d3e8145e6c045fe8c882b3a8e2
MD5 hash:	3e0938837d0c038dd69289efcf1a66da
De-pumped file size:	2'805'248 bytes (Vs. original size of 924'548'608 bytes)
De-pumped SHA256 hash:	2f2ff80d2fc6ddb9dfcd73725e3fc39d27325cfdacda43ffcdaf2f325e690041
De-pumped MD5 hash:	bb3d76f75c234302cf4beb5eefaa300e
MIME type:	application/x-dosexec
Signature	Vidar

Vendor Threat Intelligence

Verdict:

Malicious

Score:

91.7%

Link:

https://cyber-fortress.com/docs/result/index.php?id=68ffc5605de5ca270752f8f1

Tags:

emotet cobalt

Result

Verdict:

Malicious

File Type:

ZIP File - Malicious

Link:

https://app.docguard.net/f5062c65d9fc8b3acb66da956d62c0119bd9f78b9029b2a52bc2d84be41bc86f/results/dashboard

Behaviour

SuspiciousEmbeddedObjects detected

Gathering data

Verdict:

Suspicious

Labled as:

HEUR/Pumpar.Generic

Link:

https://www.hybrid-analysis.com/sample/f5062c65d9fc8b3acb66da956d62c0119bd9f78b9029b2a52bc2d84be41bc86f

Verdict:

Unknown

File Type:

zip

Link:

https://opentip.kaspersky.com/f5062c65d9fc8b3acb66da956d62c0119bd9f78b9029b2a52bc2d84be41bc86f/results?tab=lookup

Score:

99%

Verdict:

Malware

File Type:

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:	Any_SU_Domain Create hunting rule
Author:	you
Description:	Detect any reference to .su domains or subdomains

Rule name:	command_and_control Create hunting rule
Author:	CD_R0M_
Description:	This rule searches for common strings found by malware using C2. Based on a sample used by a Ransomware group

Rule name:	CP_Script_Inject_Detector Create hunting rule
Author:	DiegoAnalytics
Description:	Detects attempts to inject code into another process across PE, ELF, Mach-O binaries

Rule name:	DebuggerCheck__API Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerCheck__QueryInfo Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerCheck__RemoteAPI Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerException__SetConsoleCtrl Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DetectGoMethodSignatures Create hunting rule
Author:	Wyatt Tauber
Description:	Detects Go method signatures in unpacked Go binaries

Rule name:	Detect_Golang_Binary Create hunting rule
Author:	Andrew Morrow
Description:	Detects binaries compiled with Go

Rule name:	Detect_Go_GOMAXPROCS Create hunting rule
Author:	Obscurity Labs LLC
Description:	Detects Go binaries by the presence of runtime.GOMAXPROCS in the runtime metadata

Rule name:	dgaagas Create hunting rule
Author:	Harshit
Description:	Uses certutil.exe to download a file named test.txt

Rule name:	GoBinTest Create hunting rule

Rule name:	golang Create hunting rule

Rule name:	Golangmalware Create hunting rule
Author:	Dhanunjaya
Description:	Malware in Golang

Rule name:	golang_binary_string Create hunting rule
Description:	Golang strings present

Rule name:	golang_bin_JCorn_CSC846 Create hunting rule
Author:	Justin Cornwell
Description:	CSC-846 Golang detection ruleset

Rule name:	golang_duffcopy_amd64 Create hunting rule

Rule name:	HiveRansomware Create hunting rule
Author:	Dhanunjaya
Description:	Yara Rule To Detect Hive V4 Ransomware

Rule name:	PK_PUMP_AND_DUMP Create hunting rule
Author:	Will Metcalf @node5
Description:	Walks Zip Central Directory filename entries looking for abused extension then checks for a file that's at least 25M and then check to see how much uncompressed size is vs compressed size

Rule name:	ProgramLanguage_Golang Create hunting rule
Author:	albertzsigovits
Description:	Application written in Golang programming language

Rule name:	SEH__vectored Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	ThreadControl__Context Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	weird_zip_high_compression_ratio Create hunting rule
Author:	Maxime THIEBAUT (@0xThiebaut)
Description:	Detects single-entry ZIP files with a suspiciously high compression ratio (>100:1) and decompressed size above the 500MB AV limit
Reference:	https://twitter.com/Cryptolaemus1/status/1633099154623803394