Malicious PDF — malware analysis report

Static analysis result for SHA-256 552b9ed4eb92bccc…

MALICIOUS

PDF

448.0 KB Created: 2022-02-02 23:48:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-19
MD5: d877fdc81a88e78d32b94915210038fa SHA-1: 277f0057704d0b468bf077e1b560e068952828f3 SHA-256: 552b9ed4eb92bccc312e8508b0df2a449018a8f16de17013abb4d4398bbce333
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4105

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://loheb.co.za/XSRYdR1H?utm_term=excel+macro+select+sheet+2 PDF link annotation
    • https://themis-lex.com/userfiles/files/13998345195.pdfIn PDF document text
    • https://radio-aurea.eu/files/file/botidemininofinasini.pdfIn PDF document text
    • https://www.autopsrus.com/ckfinder/userfiles/files/82606427507.pdfIn PDF document text
    • http://ebslang.net/_UploadFile/Images/file/70567353236.pdfIn PDF document text
    • http://madonnina.info/userfiles/files/lebebilokufiwa.pdfIn PDF document text
    • http://wingprocess.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/xapate.pdfIn PDF document text
    • https://metagrhyd.com/infopub/pub/file/tikonadututenile.pdfIn PDF document text
    • https://mitrasuksesku.com/userfiles/file/buxulalinimok.pdfIn PDF document text
    • http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/161ca28ba704b3---zawisodumivisutogarimes.pdfIn PDF document text
    • http://domusanna.it/userfiles/files/pogopuzifalamufugo.pdfIn PDF document text
    • https://www.wikiwebagency.it/wp-content/plugins/super-forms/uploads/php/files/0131a78c1b715112b347aa2c70b0296c/tofufufajajesulax.pdfIn PDF document text
    • http://tat.tatagrohimservis.ru/files/77391361797.pdfIn PDF document text
    • https://gamedunyasi.com/calisma2/files/uploads/8165840624.pdfIn PDF document text
    • http://color-gateway.com/userfiles/file/pidoranimipiwatowirisutu.pdfIn PDF document text
    • https://frigosztufi.ro/ckfinder/userfiles/files/12551259225.pdfIn PDF document text
    • http://ondrejkocar.cz/img/file/wedegewogobusolug.pdfIn PDF document text
    • http://willowslakerhea.org/userimages/98409115979.pdfIn PDF document text
    • http://structurecreative.com/wp-content/plugins/formcraft/file-upload/server/content/files/161947822e86a9---72534973531.pdfIn PDF document text
    • http://vitali-schulz-eiskunstlaufen.de/userfiles/files/rasibopoguxuj.pdfIn PDF document text
    • http://vitali-schulz-eiskunstlaufen.de/userfiles/files/basiti.pdfIn PDF document text
    • https://cafepiolho.com/uploads/assets/52344040574.pdfIn PDF document text
    • http://fogathajtohirek.hu/fckfiles/file/40460163820.pdfIn PDF document text
    • https://dgssu.com/upfolder/e/files/20210720125324.pdfIn PDF document text
    • http://axiomestates.com/userfiles/file/30010197778.pdfIn PDF document text
    • https://magnettoptan.com/upload/ckfinder/files/67152257446.pdfIn PDF document text
    • https://demircanticaret.com/userfiles/file/pomil.pdfIn PDF document text
    • http://klimafertotlenites.hu/kcfinder/upload/files/48499368795.pdfIn PDF document text
    • https://www.urban-quartz.co.uk/wp-content/plugins/super-forms/uploads/php/files/7d17db0917e02ec3f140bd611337d21d/90229684735.pdfIn PDF document text
    • http://danchrisjewelry.com/userfiles/file/23815768445.pdfIn PDF document text
    • http://fs-select.com/images/blog/file/tapowezonopokurapebu.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_off00067f0e.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00067f0e.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00067f0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67F0E 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00069629.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69629 16924 bytes
SHA-256: cc71450a39fab9fb71b43044a05b07c636eaec7a60362e45d649bc5d1ed2c1db
font_02_sfnt_off0006c27f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C27F 10504 bytes
SHA-256: e97a1b263e1852456a15f45f02c18e499786e962dff1f42f6cd055917222744e
font_03_sfnt_off0006da7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DA7F 16496 bytes
SHA-256: 36ab8ee6ceb95a0a7747728201e51323a72fe0eaa0ab4e943b81dec5307a26f4