Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfa39b730c1964d9…

MALICIOUS

PDF

273.0 KB Created: 2022-01-24 10:54:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-15
MD5: 7f0a6941e199950fc549bd2ac71a7645 SHA-1: 02e2291a93c3f4a5977ba8058be4e982cd56fef7 SHA-256: bfa39b730c1964d9c8daccdde577060231c00abce031a2a3dd75f8ed752e8e90
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5505

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://minhgianggroup.vn/upload/files/metizilixebafigadopazegu.pdf In PDF document text
    • https://fluffy-chins.com/images/file/41856342969.pdfIn PDF document text
    • https://www.wsbe17hongkong.hk/_bin/ckfinder/userfiles/files/21967837810.pdfIn PDF document text
    • https://ost-fogging.com/upload/files/pexotatibevokirekukuvid.pdfIn PDF document text
    • http://iranjobex.com/cache/fck_files/file/5211828268.pdfIn PDF document text
    • http://socialinvestment.eu/templateEditor/kcfinder/upload/files/xukaxaxuvarivijofasuxad.pdfIn PDF document text
    • https://tour-paris-guide.com/cite_imgs/file/52753204687.pdfIn PDF document text
    • http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/161b2a436652af---92372848420.pdfIn PDF document text
    • http://www.studiolegalefusimorelli.com/wp-content/plugins/formcraft/file-upload/server/content/files/16167d94eabd15---57759803454.pdfIn PDF document text
    • http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/1619e434bdc1af---26168232319.pdfIn PDF document text
    • https://norservis.com/files/files/kisowudi.pdfIn PDF document text
    • http://learnersdigest.org/userfiles/file/79274397183.pdfIn PDF document text
    • http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/76j0jil985tqj90omqpmn5o8f5/11016742822.pdfIn PDF document text
    • https://steklo-shik.ru/userfiles/file/59014380745.pdfIn PDF document text
    • https://kawanmto.net/contents/files/47024696243.pdfIn PDF document text
    • http://2girlstrippin.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140e96c8a6d8---19418772022.pdfIn PDF document text
    • http://automag.pl/userfiles/file/13213257117.pdfIn PDF document text
    • https://giaynangchieucao.com/userfiles/file/kujebaruvenivujepifagava.pdfIn PDF document text
    • https://riolisboa.com/images/ul_files/file/TNtZU4M3so1u.pdfIn PDF document text
    • http://sbcnepal.com/images/file/xuwukitekuvexorumale.pdfIn PDF document text
    • https://vidaleve.net/ckfinder/userfiles/files/64524779608.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161703731e2634---70446409654.pdfIn PDF document text
    • http://nepalbestcargo.com/userfiles/file/62220518886.pdfIn PDF document text
    • https://locktactyuma.com/userfiles/file/gigisinolosafo.pdfIn PDF document text
    • http://asupuro.com/user_data/image/file/69733041642.pdfIn PDF document text
    • https://tasivn.com/upload/ck/files/83213998907.pdfIn PDF document text
    • https://icicle-mountaineering.ltd.uk/ckfinder/userfiles/files/8343902985.pdfIn PDF document text
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/161dcb83baa791---logekanebifapogi.pdfIn PDF document text
    • http://dobre-jaja.com/Upload/file/16580936326.pdfIn PDF document text
    • http://zechnerbau.at/images/content/files/subeluwege.pdfIn PDF document text
    • http://lindendirect.com/tempimg/file/viwoferetitew.pdfIn PDF document text
    • http://divelife.kz/files/file/tedadeboresikot.pdfIn PDF document text
    • http://probeg2000.ru/files/userfiles/files/togomopetaxoz.pdfIn PDF document text
    • http://skyrunarser.com/js/fckeditor/editor/filemanager/connectors/php/connector.php/upfiles/file/2110031808429371926i3ze4.pdfIn PDF document text
    • http://www.lacalzadadeoropesa.es/abm/Bibliotecas/kcfinder/upload/files/burab.pdfIn PDF document text
    • http://polyacer-ecp.com/userfiles/files/20211127_131215.pdfIn PDF document text
    • https://raselapp.com/userfiles/file/gorowije.pdfIn PDF document text
    • http://angel-conference.org/upload_fck/file/2021-11-23/20211123180218389920.pdfIn PDF document text
    • http://kidsjeodo.com/images/files/nizufozafafozaliratarina.pdfIn PDF document text
    • https://yastudio.net/wp-content/plugins/super-forms/uploads/php/files/e037ad966bd59fd0621350b8283c1d10/8846912652.pdfIn PDF document text
    • http://caogenzhiben.com/filespath/files/20220124091137.pdfIn PDF document text
    • https://grahampropertytax.com/wp-content/plugins/super-forms/uploads/php/files/aba116754614d00e4d3edf54531595c6/pegefudujaburevi.pdfIn PDF document text
    • http://thamdinhgiadaiquang.com/img/files/82510356060.pdfIn PDF document text
    • https://fp-088.flexxmedien.com/flexxtrader/data/usf/file/mugorovo.pdfIn PDF document text
    • https://manhalhealing.com/userfiles/file/xolak.pdfIn PDF document text
    • http://codienlanhminhquang.com/upload/files/dukazijofedamopopix.pdfIn PDF document text
    • http://kkagro.com/media/images/upload/file/kukufupo.pdfIn PDF document text
    • https://happycondo.leaddeehub.com/userfiles/files/dezopededuvelinupa.pdfIn PDF document text
    • https://blsautomation.com/ckfinder/userfiles/files/soxitupufepiz.pdfIn PDF document text
    • https://dpmptsp.pemkomedan.go.id/dpmptspwebaplikasi/libraries/ckeditor/kcfinder/upload/files/49165429391.pdfIn PDF document text
    +9 more URL(s)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003c971.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3C971 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0003e012.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3E012 23724 bytes
SHA-256: db1d3b1cb64c526ec2cd8c4cce3b51d474d23d3f69878819203771eabb421808
font_02_sfnt_off00041ae2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41AE2 10492 bytes
SHA-256: 089d094029b5a5e72ea2fffc6a013aaf5b52ea4823a48e125abb9260ec46a976