Malicious PDF — malware analysis report

Static analysis result for SHA-256 191e7af9a22c2484…

MALICIOUS

PDF

247.3 KB Created: 2022-02-04 10:21:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 0d9974f0cf1c15a9d2d37de71b7ae144 SHA-1: 98fdccddee9075fba04077a579d6aff6c6d13c60 SHA-256: 191e7af9a22c24842dc9c7798d3324cc5c2ff8729121191965da7ffc1a48a232
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9287

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
  • 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.
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://wirut.co.za/XSRYdR1H?utm_term=cablevision+tv+guide+bronx PDF link annotation
    • http://youngshiny.com/userfiles/file/1631576735.pdfIn PDF document text
    • http://fresh-j.info/images/uploadedimages/file/292338895.pdfIn PDF document text
    • https://www.gryf-wet.pl/ckfinder/userfiles/files/pirupukalukakujesulomod.pdfIn PDF document text
    • http://directartdeal.com/uploaded_files/userfiles/files/sidaxorozasige.pdfIn PDF document text
    • http://taigesw.com/upload/files/dikolasoboxeduwidaluf.pdfIn PDF document text
    • https://vrindaindia.com/php/joseph/uploads/file/58641269546.pdfIn PDF document text
    • http://zjnep.com/ckeditor/ckfinder/userfiles/files/nowigilatuketiri.pdfIn PDF document text
    • http://explosivedevices.ru/media/file/mufitevitoj.pdfIn PDF document text
    • http://kingalbertltd.com/uploadedfiles/file/99345651555.pdfIn PDF document text
    • http://locnuocvietmy.com/Images_upload/files/zoworuboziram.pdfIn PDF document text
    • https://ketgate.eu/wp-content/plugins/super-forms/uploads/php/files/7aad463bb8481b969aa0d4229cd8473d/sinokifepawawareziwisa.pdfIn PDF document text
    • https://sysyanginguvenlik.com/uploads/files/86127341631.pdfIn PDF document text
    • http://soojuspilt.ee/files/file/kijabulabekix.pdfIn PDF document text
    • http://www.valathors.com/ckfinder/userfiles/files/75905666591.pdfIn PDF document text
    • https://jooli.ru/ckfinder/userfiles/files/nefebagobopiwuf.pdfIn PDF document text
    • https://tempatpasang.com/contents/files/rujalemodup.pdfIn PDF document text
    • http://anaheim81.com/kcfinder/upload/files/70140688877.pdfIn PDF document text
    • http://xmzs.org/userfiles/file/65906017540.pdfIn PDF document text
    • https://kenhquangcao.vn/uploads/files/ludepavewux.pdfIn PDF document text
    • http://aias.pnu.ac.th/ckfinder/userfiles/files/migulozuvuwuzi.pdfIn PDF document text
    • https://mr-alian.com/upload/ckfinder/files/94193741235.pdfIn PDF document text
    • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161e15064143c2---mezinovijitifanure.pdfIn PDF document text
    • http://balone.net/_upload/file///82221620819.pdfIn PDF document text
    • https://ontogepszerviz.hu/editor_up/81674209840.pdfIn PDF document text
    • http://chulatutoracademy.com/chulatutor/ckfinder/userfiles/files/vasamezifog.pdfIn PDF document text
    • https://yokohamashiki-m.jp/app/webroot/js/kcfinder/upload/files/xujizijizukipuropifoxok.pdfIn PDF document text
    • http://caythuocnam.org/images/files/88708399402.pdfIn PDF document text
    • https://longhoang.vn/upload/files/9463239671.pdfIn PDF document text
    • https://skyzoan.com/cake/beta/userfiles/file/11842882660.pdfIn PDF document text
    • https://www.auto-ecole-acm.com/ckfinder/userfiles/files/31834613194.pdfIn PDF document text
    • http://randoquad72.fr/userfiles/file/bozenusosenu.pdfIn PDF document text
    • https://3zslitomysl.cz/admin/editor/kcfinder/upload/files/saxopukigasigowate.pdfIn PDF document text
    • https://es21sys.com/userfiles/file/balevesivopitok.pdfIn PDF document text
    • http://avanti.pl/userfiles/file/pifotujelefesesoveperuk.pdfIn PDF document text
    • http://afslab.asia/upload/files/rozujavaxiwogufepu.pdfIn PDF document text
    • http://yachts-trade.com/files/kojagodibagivevuzudogu.pdfIn PDF document text
    • https://havadisname.com/upload/ckfinder/files/mulijivarofuxozanid.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000362a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x362A6 10864 bytes
SHA-256: 5d97123cdcc8052f202eb233b750460ffa19d5b6d18ebbed9c89dcac5e673daf
font_01_sfnt_off00037bb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x37BB8 19268 bytes
SHA-256: bca7dd511738e4a97ad110f765e2bc8b32c76942be48f286dfa8d465e3f1dc0d
font_02_sfnt_off0003ae1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3AE1E 1700 bytes
SHA-256: 15171638d69c9281a983de8a04f8d213e5ed86d33053034f6aa0dd130c4010d8
font_03_sfnt_off0003b635.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B635 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9