Malicious PDF — malware analysis report

Static analysis result for SHA-256 32ca5e8c27ad6249…

MALICIOUS

PDF

75.8 KB Created: 2021-05-12 11:10:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 0330e8e8de963044caa683f4f3cc58b6 SHA-1: 686f945a844328196a9f91ea16f1cc7976eb117e SHA-256: 32ca5e8c27ad62496fe3026aacbe9ee6d2f4f9b3b102d094e28ca5b4cbe4675e
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains numerous external links, a common tactic for SEO spam or phishing campaigns. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to potentially harmful content hosted on external domains.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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.
  • 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://seumenha.ru/strik?utm_term=gospel+of+peter+text PDF link annotation
    • https://fovojewonot.weebly.com/uploads/1/3/4/6/134669065/425f623f.pdfIn PDF document text
    • http://favarivizuna.medianewsonline.com/cards_against_humanity_6th_expansion.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481064/normal_5fdd308fad471.pdfIn PDF document text
    • https://panulozeti.weebly.com/uploads/1/3/5/3/135351273/demuwas.pdfIn PDF document text
    • https://vofirojaj.weebly.com/uploads/1/3/1/6/131637635/bb7d4c759d7b1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406514/normal_5ff97c05dbbf9.pdfIn PDF document text
    • https://telidububiz.weebly.com/uploads/1/3/1/4/131452987/tuwegotal.pdfIn PDF document text
    • https://bekajujoxofutit.weebly.com/uploads/1/3/1/4/131406668/bivevu.pdfIn PDF document text
    • https://beluloxepivizor.weebly.com/uploads/1/3/4/1/134131295/zumezizop.pdfIn PDF document text
    • https://cdn.sqhk.co/xolovagi/LghheEo/balloon_arches_diy.pdfIn PDF document text
    • https://wilasumoleliwu.weebly.com/uploads/1/3/1/4/131414134/bcf0299368027.pdfIn PDF document text
    • http://kuboduzuke.mypressonline.com/55696959266.pdfIn PDF document text
    • http://tuwasukam.getenjoyment.net/ridalosabaniw.pdfIn PDF document text
    • https://cdn.sqhk.co/jekidase/EicTicU/48597520609.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476590/normal_60375b4a2ca8e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/muvojugejoxip/66780413653.pdfIn PDF document text
    • https://s3.amazonaws.com/bidivo/nfl_injury_report_browns.pdfIn PDF document text
    • https://s3.amazonaws.com/firigugixujotov/how_to_prepare_for_advent_spiritually.pdfIn PDF document text
    • https://s3.amazonaws.com/zukogi/black_hole_android_wallpaper_hd.pdfIn PDF document text
    • https://s3.amazonaws.com/divexikav/83058949660.pdfIn PDF document text
    • http://zedofaxuboz.onlinewebshop.net/can_t_help_falling_in_love_ukulele.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eead.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEAD 4784 bytes
SHA-256: 081815117027956018e5c8ad0066a929375b36dcc76e8e21e104b15be59d4e79
font_01_sfnt_off0000ff0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF0D 10304 bytes
SHA-256: 5280d2eb1d977300551864760ce32b9c84c18636e0df61753582496eaa757635

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