Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d8e7eac1c73f39d…

MALICIOUS

PDF

499.2 KB Created: 2022-01-17 18:59:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 0224eb2b956ee140e5f9a5f44d47a091 SHA-1: fa4f38b333be862bcc0183a591e5b094e61fbed5 SHA-256: 5d8e7eac1c73f39d0619bcd087f9092096292475ebfb53768a8551aca6f143b2
164 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4545

Heuristics 8

  • 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.
  • 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://synerhu.ru/uplcv?utm_term=australian+super+rollover+application+form PDF link annotation
    • http://hoteldazegliotorino.com/userfiles/files/78262784594.pdfIn PDF document text
    • https://osakaav.com/userfiles/files/labopobuvixetuxidu.pdfIn PDF document text
    • https://aykutemlak.com/upload/ckfinder/files/femejimadusurumezeju.pdfIn PDF document text
    • https://tsafar.ir/basefile/tsafarir/files/rigowejatugixiza.pdfIn PDF document text
    • http://royalleasingny.com/admin/images/file/negezinanufeguf.pdfIn PDF document text
    • http://bienbao.net/uploads/files/90571739985.pdfIn PDF document text
    • http://zakazspbwatches.ru/upload/files/xuramukukiwadim.pdfIn PDF document text
    • http://teamwork-poetschke.com/ckfinder/userfiles/files/15401744371.pdfIn PDF document text
    • https://www.winsum.frl/ckfinder/userfiles/files/65400805645.pdfIn PDF document text
    • https://jamiatulbanat.in/wp-content/plugins/formcraft/file-upload/server/content/files/16195285989c02---91946216479.pdfIn PDF document text
    • https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/6m1ehp30hjvq7d4halpfvq756u/buvibi.pdfIn PDF document text
    • http://nousgarage.com/userfiles/file/sosar.pdfIn PDF document text
    • http://tchid.net/userfiles/file/70786630847.pdfIn PDF document text
    • https://wineuniverse.us/userfiles/file/nirizolonebizuguruwifek.pdfIn PDF document text
    • https://portoggitter.no/content/files/userfiles/file///90153315447.pdfIn PDF document text
    • http://sitoad.com/bbqjoekey/files/202112120351167695.pdfIn PDF document text
    • http://schokoladenbrunnen.de/idata/12010290873.pdfIn PDF document text
    • https://highfieldhousehotel.net/nbloom/fckuploads/file/lazipotugexelelexe.pdfIn PDF document text
    • https://balletpanov.com/uploads/files/15933539516.pdfIn PDF document text
    • https://trinityautorepairs.com/uploads/files/mabujiraguxofiragu.pdfIn PDF document text
    • http://www.ishvani.com/www/js/ckfinder/userfiles/files/87397398142.pdfIn PDF document text
    • https://www.syah.org/wp-content/plugins/super-forms/uploads/php/files/b3ffe54ee3028bbe86827cc1ebc09231/17053882767.pdfIn PDF document text
    • https://lynnesnaturaltreats.com.au/wp-content/plugins/super-forms/uploads/php/files/35654adb7c7332942a91680162c96607/xojapirixitobom.pdfIn PDF document text
    • https://funcarele.com/ckfinder/userfiles/files/44345742808.pdfIn PDF document text
    • http://www.xn----9sbkvfu2aex3d.xn--p1ai/ckfinder/userfiles/files/34367456988.pdfIn PDF document text
    • http://fitviewer.info/files/file/73667192371.pdfIn PDF document text
    • https://y3stwk65l-mn9.com/contents/files/49190796471.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00075d18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75D18 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off000773b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x773B7 17780 bytes
SHA-256: 21a68b5e27b10d8833cbb8d37bd8132c760face0306ba09c7c1a0f6191fb417f
font_02_sfnt_off0007a2bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A2BD 10788 bytes
SHA-256: 56f3f3d2ae022e8c73be18bcc891eab186e32ad5f1e08a0f740ba5080994a41e