Malicious PDF — malware analysis report

Static analysis result for SHA-256 2583cb153cf293e6…

MALICIOUS

PDF

399.1 KB Created: 2022-02-08 04:47:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-12
MD5: 88e736e9ade8ab76a6ea7f331b087055 SHA-1: d398e6f8640d26d761eae068401d9894f8b93b82 SHA-256: 2583cb153cf293e6f12501f7a24d20fbbefef4739017e5c281945b4c42fc1090
226 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7415

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://colod.co.za/XSRYdR1H?utm_term=newsela+answer+key+to+quizzes PDF link annotation
    • https://micro-logic.ro/images/uploaded/file/gifonosisolusukopotibenir.pdfIn PDF document text
    • http://spshetamsar.com/userfiles/file/mapavuvasuxiju.pdfIn PDF document text
    • https://keepingscore.org/userfiles/file/wobaza.pdfIn PDF document text
    • https://pollackmihalyiskola.hu/ckfinder/userfiles/files/6492135117.pdfIn PDF document text
    • http://opsir.eu/files/file/54412262215.pdfIn PDF document text
    • http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/161410ea0c6fbe---66898522375.pdfIn PDF document text
    • https://jager-ig.tw/up_photo/file/zibevexemabalugune.pdfIn PDF document text
    • https://dtd.com.pk/ckfinder/userfiles/files/laletapobam.pdfIn PDF document text
    • https://flavio-tonon.it/public/file/jugonezudifipiwoxided.pdfIn PDF document text
    • http://cdkuys.handysociality.com/upload/files/jobugajawotofelotajipil.pdfIn PDF document text
    • https://mobilpetrol.olajpark.hu/files/files/xitikore.pdfIn PDF document text
    • http://flyingfish-stay.com/userfiles/file/povadusituk.pdfIn PDF document text
    • http://kim-clark.ru/files/file/pinidikekovusodi.pdfIn PDF document text
    • http://gt-outillages.fr/ressource/site-image/files/kudukutotutimaletozefuva.pdfIn PDF document text
    • https://zhansq.cn/upload/file/wumoporolokuluxe.pdfIn PDF document text
    • https://stonemasonscottage.com/upload/files/84379260316.pdfIn PDF document text
    • http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16173531903383---wusuwamiwuv.pdfIn PDF document text
    • http://anapro.com/ckfinder/userfiles/files/nezesavupodijesigo.pdfIn PDF document text
    • https://kakvkusno26.ru/wp-content/plugins/super-forms/uploads/php/files/d146ab265682e314eefd6d2dbe366d44/73634686439.pdfIn PDF document text
    • https://rolcsi-bau.hu/userfiles/files/zowoti.pdfIn PDF document text
    • http://chernogolovka.inhome360.ru/admin/ckfinder/userfiles/files/43097335781.pdfIn PDF document text
    • http://wskinbody.com/data/boardData/files/66692862687.pdfIn PDF document text
    • http://1666-3668.com/attach/userfiles/file/janifofunekosawokuzi.pdfIn PDF document text
    • http://helpnri.org/kcfinder/upload/files/talofatebofupipolir.pdfIn PDF document text
    • https://itandem.net/ckfinder/userfiles/files/52172491724.pdfIn PDF document text
    • http://yogathoitrang.com/quangbasanpham/app/webroot/upload/image/files/pudidupekinenifi.pdfIn PDF document text
    • http://www.kyousei-fukushi.or.jp/system/ckfinder/userfiles/files/88842976333.pdfIn PDF document text
    • https://andhimazhai.com/images/files/5144582950.pdfIn PDF document text
    • http://dycelife.com/userfiles/file/21629443561.pdfIn PDF document text
    • https://mediaskills.rs/files/32499323952.pdfIn PDF document text
    • http://viettelhaiphong.me/data/dulieu/files/tasejusexubovutewa.pdfIn PDF document text
    • http://juraganbajumurah.com/kcfinder/upload/files/56453115910.pdfIn PDF document text
    • http://qkmedica.com/uploads/userfiles/file/4057087040.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_off0005ca3f.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005ca3f.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005ca3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CA3F 10676 bytes
SHA-256: 2e64d123b44b456a17545bf01439b5ff224e414dc87d6166462353dba7243341
font_01_sfnt_off0005e2f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E2F9 19048 bytes
SHA-256: 335871b9d4816f465d5e65b6aae89bfa04dd13ae1f3387ee8cbf7f559525b9b8
font_02_sfnt_off00061538.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61538 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9