Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbf3b4552b8a2564…

MALICIOUS

PDF

759.5 KB Created: 2022-05-08 00:02:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-26
MD5: 4d4fea77109ae10dd39b863d87b64933 SHA-1: 35f510eb6c359ac6e823a4185810c956f76b3ec0 SHA-256: cbf3b4552b8a2564df60e4a435ad5970b5e54abc36d55526a6baba4eac6f6c96
204 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.1657

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Travel-support phone-number stuffing scam critical SE_TRAVEL_SUPPORT_PHONE_SCAM
    Document repeats phone numbers in airline/travel/refund/support language, often across multiple regional phrasings. This matches SEO/support-scam PDFs that impersonate airlines or travel brands and route users to attacker-controlled call centers rather than a normal travel document.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://fecuq.co.za/XSRYdR1H?utm_term=aha+bls+guidelines+2020+pdf+printable+form+download PDF link annotation
    • http://tjjjsh.com/uploads/files/razalajeno.pdfIn PDF document text
    • http://healthmindsacademy.com/admin/ckeditor/kcfinder/upload/files/46286349343.pdfIn PDF document text
    • https://isystem.hu/userfiles/file/81268820048.pdfIn PDF document text
    • https://wapolamezabez.weebly.com/uploads/1/3/4/0/134041225/5af6c55a93a7a8.pdfIn PDF document text
    • http://energywork.pl/userfiles/file/7042249197.pdfIn PDF document text
    • https://vavixama.weebly.com/uploads/1/3/4/4/134471840/1a8ce.pdfIn PDF document text
    • http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/162078afff0ab0---sezixuxabovirikizozufam.pdfIn PDF document text
    • http://dalnoboy.org/data/filestorage/upload/files/87250985536.pdfIn PDF document text
    • https://aymsoft.us/aym_image/files/musadake.pdfIn PDF document text
    • https://wozizagozesa.weebly.com/uploads/1/3/4/8/134848764/4609007.pdfIn PDF document text
    • https://crbz.ru/userfiles/file/56847856106.pdfIn PDF document text
    • http://coffeexclusive.co.uk/kcfinder/upload/files/92956452801.pdfIn PDF document text
    • https://www.lowdoc-loans.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/162071621c7674---vekigejobexu.pdfIn PDF document text
    • https://difivumubum.weebly.com/uploads/1/3/4/5/134577496/9602054.pdfIn PDF document text
    • https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1621af66890b01---jijojexefaxexiw.pdfIn PDF document text
    • http://mineraux-et-lithotherapie.fr/ckeditor/upload/files/98910822767.pdfIn PDF document text
    • http://vuatoyen.com/uploads/userfiles/file/takunokekuwakekidedojo.pdfIn PDF document text
    • https://www.oceaniacroisieres.com/html/scripts/ckeditor/kcfinder/upload/files/taxuvenomerebivi.pdfIn PDF document text
    • http://haciogullari.com/depo/sayfaresim/file/mibizarudariki.pdfIn PDF document text
    • https://penzion-pod-rozhlednou.cz/img/file/32121686090.pdfIn PDF document text
    • https://alarrabnews.com/images/content/content/file/petufuxufiluzoma.pdfIn PDF document text
    • https://kugugurufive.weebly.com/uploads/1/3/4/1/134108893/869042.pdfIn PDF document text
    • https://centrehistoriquesndbc.com/ckfinder/userfiles/files/zovevomajuwatol.pdfIn PDF document text
    • https://xukovefekafevut.weebly.com/uploads/1/3/0/9/130969731/9121946.pdfIn PDF document text
    • http://inbjnews.com/data/cheditor/0603/files/74526332728.pdfIn PDF document text
    • https://mkting.com.co/wp-content/plugins/super-forms/uploads/php/files/63202d4202aa5297a3825d6461185779/76091402161.pdfIn PDF document text
    • https://alperbehang.nl/userfiles/file/14593074943.pdfIn PDF document text
    • https://ltes2.tw-goods.com/UserFiles/files/20822284131.pdfIn PDF document text
    • http://zeshengtecphar.com/UploadFiles/FCKeditor/20220313025212.pdfIn PDF document text
    • http://kup-vino.cz/web/ckfinder/userfiles/files/nemut.pdfIn PDF document text
    • http://cdkuys.handysociality.com/upload/files/95082137151.pdfIn PDF document text
    • http://ebsenglish.net/_UploadFile/Images/file/44365960094.pdfIn PDF document text
    • https://andreanpantravel.com/userfiles/tnejp/files/jezesijekitigiviju.pdfIn PDF document text
    • http://blackswaninfotech.com/kcfinder/upload/files/46761901943.pdfIn PDF document text
    • http://photo-preiss.com/upload_files/files/bedudizodufefoneg.pdfIn PDF document text
    • http://www.iccet.org.tr/kcfinder/upload/files/povarotukizumus.pdfIn PDF document text
    • https://pokereshop.cz/data/file/xamewekibanisakejonuzij.pdfIn PDF document text
    • https://wutopelimirewel.weebly.com/uploads/1/4/1/4/141417763/41d1f740c6272.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off000b6287.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000b6287.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000b6287.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB6287 21696 bytes
SHA-256: 93035f90f02d4044a053726c88d632baf68b98d59026fae91c4ad5b53e00378b
font_01_sfnt_off000b9878.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB9878 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000bb09b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB09B 11492 bytes
SHA-256: b1074e7dcf2ad16621289abf994cf551df4203ba4ed832d39944614328e790a4