Malicious PDF — malware analysis report

Static analysis result for SHA-256 fbbd0bb320b964d7…

MALICIOUS

PDF

69.5 KB Created: 2021-03-05 01:58:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: f475d9aa9719e5e3b052c7c97dce7b03 SHA-1: 7fd759ada498b2b0d686424f0bf68f4c34db6c0d SHA-256: fbbd0bb320b964d77b5d076453b64aba54d883628d2020e2d400477876777012
184 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous external links, many hosted on disposable domains, suggesting a link farm designed to redirect users. The document body, though heavily obfuscated, contains keywords related to smart thermostat installation, likely serving as a lure. The presence of a PDF_SEO_LINK_FARM heuristic and ClamAV detection as 'Pdf.Phishing.Trojan' strongly indicates a malicious intent to drive traffic to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8170

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://zajinet.ru/award?keyword=how+to+install+honeywell+wifi+smart+thermostat+rth9580wf PDF link annotation
    • https://fogolaliri.weebly.com/uploads/1/3/2/8/132814342/5925858.pdfIn PDF document text
    • https://cdn.sqhk.co/daxegajok/PEnDjbN/offline_games_for_android_free_download_uptodown.pdfIn PDF document text
    • https://rifojiditesi.weebly.com/uploads/1/3/1/3/131379396/wubejigixalera-tegunirudoruve.pdfIn PDF document text
    • https://cdn.sqhk.co/rubogomuweme/PLhjij1/wobubugalateb.pdfIn PDF document text
    • https://tonavibete.weebly.com/uploads/1/3/4/7/134748981/25134ceaf.pdfIn PDF document text
    • https://cdn.sqhk.co/papowepu/p6eidig/carrie_underwood_christmas_album_tracklist.pdfIn PDF document text
    • https://bexudedumazises.weebly.com/uploads/1/3/1/4/131406785/1787008.pdfIn PDF document text
    • https://cdn.sqhk.co/xekemini/i3jfnsA/65755342839.pdfIn PDF document text
    • https://cdn.sqhk.co/povewepalu/WSgjvYV/anime_3d_live_wallpaper_android.pdfIn PDF document text
    • https://cdn.sqhk.co/ralapogifur/fhbJ9ih/sutopapujejewube.pdfIn PDF document text
    • http://dufifudusimube.mygamesonline.org/keurig_525c_manual.pdfIn PDF document text
    • http://pemufosapakem.mypressonline.com/sumipizowukalomi.pdfIn PDF document text
    • https://wepejusekubikur.weebly.com/uploads/1/3/4/4/134441987/pududovarez.pdfIn PDF document text
    • http://gopadaxin.mywebcommunity.org/grammar_english_book_class_6.pdfIn PDF document text
    • https://cdn.sqhk.co/titabofasika/mlhbbhg/atari_2600_emulator_download.pdfIn PDF document text
    • https://cdn.sqhk.co/tefaxobaf/jbDwjhu/neuroticism_personality_trait.pdfIn PDF document text
    • http://potobol.22web.org/suzululixorezode.pdfIn PDF document text
    • http://rimaloxal.22web.org/mesutikowosubizirave.pdfIn PDF document text
    • https://cdn.sqhk.co/nomazotesi/jiehgsm/subway_super_railway_runner.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee94a742-f9b0-4344-a2f9-47b5d60c06e8/verodunoka.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ae65a83-8dc4-4107-8e95-6ce3275b0929/kimivuxejorutovokubajofa.pdfIn PDF document text
    • http://sajavisazoz.epizy.com/chitika_meda_chitika_vesara_telugu_song.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/092b67fe-69ee-4481-810d-61889df054de/vejiwedetezogajijomug.pdfIn PDF document text
    • http://kokidudelilusib.epizy.com/arabic_language_course.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65e62794-1930-42e4-b6c1-194f7fa3206e/pepufufokaxageba.pdfIn PDF document text
    • http://lawaxisagiwog.atwebpages.com/burger_king_app_deals_uk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/160bc50b-9f5f-4130-9500-a082bf7756f5/how_to_cook_country_style_ribs_in_stove_top_pressure_cooker.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fc4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC4F 5776 bytes
SHA-256: a76a8379540e1e4bc1f33c6c2454a22a983f5c126e1948288f38df93f378a620

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