Malicious PDF — malware analysis report

Static analysis result for SHA-256 0291cc594013a16c…

MALICIOUS

PDF

240.9 KB Created: 2022-02-24 18:57:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-08
MD5: 308a80113556ce38d4d86334ba9b5def SHA-1: 57d9b331433a882b9d02279cbbb3c9a99e67f2b5 SHA-256: 0291cc594013a16c04443a82df97af6103b3a37d6380b02c634977133c9bf869
226 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded URLs, many of which are linked to compromised CMS upload storage, suggesting a phishing or scam campaign. The heuristic 'SE_TRAVEL_SUPPORT_PHONE_SCAM' indicates a high volume of phone numbers, reinforcing the scam pretext. The ML classifier also flagged the document as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7264

Heuristics 7

  • 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.
  • 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://norin.co.za/XSRYdR1H?utm_term=abacus+mastery+checkpoint+answers PDF link annotation
    • http://unternehmensberatung-hegenbarth.de/userfiles/file/pulevufep.pdfIn PDF document text
    • https://chingchia.com/uploads/files/202112190058579446.pdfIn PDF document text
    • http://dd-eng.com/files/files/lupesuvawuge.pdfIn PDF document text
    • https://draw.pt/home/drawpt/images-editor/file/19493850207.pdfIn PDF document text
    • https://oriental-kitchens.com/userfiles/files/joluxigi.pdfIn PDF document text
    • http://anetta.hu/data/file/71162992011.pdfIn PDF document text
    • https://paceelectric.com/new2/userfiles/file/94486111703.pdfIn PDF document text
    • http://lohoithaiduong.com/uploads/files/tawulakuja.pdfIn PDF document text
    • http://www.musicmaestrodiscos.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161ec2a3f8e38f---pasaxudukavexedugedofa.pdfIn PDF document text
    • http://askort.pl/Upload/file/2682246819.pdfIn PDF document text
    • http://delve-cr.com/uploads/mutuzubima.pdfIn PDF document text
    • https://dharmagold.in/kcfinder/upload/files/43097338687.pdfIn PDF document text
    • http://starroadchina.com/userfiles/file/5150176477.pdfIn PDF document text
    • http://www.mecateengenharia.com.br/ckfinder/userfiles/files/makekumikixat.pdfIn PDF document text
    • https://granitabrasive.hu/editor_up/fefelafuvikeri.pdfIn PDF document text
    • http://www.hangmandigital.com/files/file/11638656557.pdfIn PDF document text
    • http://ilturismoinitalia.it/userfiles/files/37122676326.pdfIn PDF document text
    • http://mega-treid.com/userfiles/files/43653173612.pdfIn PDF document text
    • http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1617792a977a1b---71428933551.pdfIn PDF document text
    • http://iehyun.com/editorupload/file/wamibe.pdfIn PDF document text
    • http://novafish.it/userfiles/files/zebufelodig.pdfIn PDF document text
    • https://www.serwkom.pl/plugins/ckfinder/userfiles/files/xeriletawaboregatope.pdfIn PDF document text
    • http://paulbwatkinslaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/kosisalujajetovajuw.pdfIn PDF document text
    • http://uppercanadatwocylinderclub.com/clients/877835/File/68916678768.pdfIn PDF document text
    • http://galsabino.it/userfiles/files/padipeperafupiketisun.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161a3444726427---49021506600.pdfIn PDF document text
    • https://ourlady-schools2.com/userfiles/files/56204650607.pdfIn PDF document text
    • http://letnipohar.cz/upload/file/tukemisameta.pdfIn PDF document text
    • http://2016.letnifestiwal.pl/ckfinder/userfiles/files/12649397408.pdfIn PDF document text
    • https://www.alertgy.com/wp-content/plugins/super-forms/uploads/php/files/d3146df88999f38e5f35ff59bf9ad0a6/67143972950.pdfIn PDF document text
    • http://eeplt.edu.pe/kcfinder/upload/files/fugesobemasomiv.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_off00034e15.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00034e15.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00034e15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34E15 11108 bytes
SHA-256: e38519530e4f5d7c4aec4f1aaa5c374e0a658fdc8afec4057beddbc888d9c602
font_01_sfnt_off000367be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x367BE 20096 bytes
SHA-256: 23c5ebc331282e06df3ae777fe58a55ebf545fe7b36430364673d5f4988b01b5
font_02_sfnt_off00039cd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x39CD3 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9