Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0c17c018053e77d…

MALICIOUS

PDF

94.5 KB Created: 2021-09-14 22:29:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-02
MD5: 1a54449e3802e5536d563db3b6514604 SHA-1: 550b079fab3b8ad73ea5ab8036a9909400ade3e9 SHA-256: c0c17c018053e77dc0abfea08d661144367b9b3eeca56f15967f91820fa23d6d
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9965

Heuristics 9

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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 http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/16138870de247e---tigek.pdf In PDF document text
    • https://hiroyoung.com/data/files/33202471129.pdfIn PDF document text
    • http://mispuntossaga.com/campannas/file/zenup.pdfIn PDF document text
    • http://fanti-fitness.pl/uploads/assets/file/16070799779.pdfIn PDF document text
    • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/16137e79f14d4b---xamojeludevog.pdfIn PDF document text
    • https://newtop-eg.com/userfiles/file/xarogebubokoxadiw.pdfIn PDF document text
    • https://rosedreamholidayhomes.com/ckfinder/userfiles/files/pevemakoguxome.pdfIn PDF document text
    • http://longbeach.ilovepokebar.com/uploads/files/89716062985.pdfIn PDF document text
    • http://sprostredkovanieuverov.sk/res/file/6291181020.pdfIn PDF document text
    • http://hengtongrongshang.com/jingkelun/userfiles/files/20210912105809.pdfIn PDF document text
    • http://nayyaralidada.com/alpha/ckfinder/userfiles/files/nekenusapetekosikumalat.pdfIn PDF document text
    • http://recamonde.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1612f0d0e9ef01---kawafuwarupitigubiwonimem.pdfIn PDF document text
    • http://daglichtfilters.nl/ckfinder/userfiles/files/dozodekanezujug.pdfIn PDF document text
    • http://thermocomfort.ca/userfiles/file/91148599244.pdfIn PDF document text
    • http://taxfreepoint.com/file/lejavedetavonuwuz.pdfIn PDF document text
    • http://dvg.asia/ckfinder/uploadfiles/files/87685715161.pdfIn PDF document text
    • http://technoauto.jp/js/upload/files/25887015768.pdfIn PDF document text
    • http://techscreening.com/userfiles/files/94543843137.pdfIn PDF document text
    • http://www.huntsvillepr.com/files/files/lalunujasisejidizagita.pdfIn PDF document text
    • http://xn--k1akb4c.xn--p1ai/userfiles/file/zoferubutodajibox.pdfIn PDF document text
    • https://nucamsa.es/userfiles/files/liwanegomexitumenitolijo.pdfIn PDF document text
    • https://presstone.hu/userfiles/file/koliselopumuloze.pdfIn PDF document text
    • http://demirlermetal.com/resimler/files/kevexutezi.pdfIn PDF document text
    • http://hainescentreasia.com/images/file/89749791289.pdfIn PDF document text
    • https://wotfiles.com/ckfinder/userfiles/files/viwigas.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=psd+to+pdf+in+photoshopPDF link annotation
    • 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_off00010d9a.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00010d9a.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010d9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D9A 10156 bytes
SHA-256: a565feb149aa8624d460f1c2fc7f211ceb103b8099ca1e9bf525e91478def683
font_01_sfnt_off00012432.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12432 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00013c44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13C44 18348 bytes
SHA-256: fdd00276b7ae1dd3cce3d170f8840a0737133412ab402bcc30799e0113c9b81c