Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3f999e7d8196eb0…

MALICIOUS

PDF

51.7 KB Created: 2020-11-08 07:12:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a0150306464d3e120c0a7a3e980f0fd4 SHA-1: 176b9a246607915da43079ab99585272942ad6a1 SHA-256: c3f999e7d8196eb0a71e59fcdca4901392c4a28a4271f229d94a5400327e88ca
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The ML classifier strongly indicated maliciousness, and the document body contains a URL disguised as a poem template. This URL, 'https://traffine.ru/123?keyword=poem+templates+for+adults', is likely intended to lead the user to a malicious site. No scripts were extracted, but the presence of embedded URLs and the ML detection suggest a phishing or redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://traffine.ru/123?keyword=poem+templates+for+adults In PDF document text
    • https://pasabegimukug.weebly.com/uploads/1/3/4/2/134265340/disepamu-kelixalerifil.pdfIn PDF document text
    • https://nagifinapu.weebly.com/uploads/1/3/2/6/132696111/mobez_rogirizexed.pdfIn PDF document text
    • https://vokewubepil.weebly.com/uploads/1/3/4/4/134443825/5a51b4b91f372a6.pdfIn PDF document text
    • https://bilemupu.weebly.com/uploads/1/3/4/6/134654663/miwesifi.pdfIn PDF document text
    • https://tefifegewa.weebly.com/uploads/1/3/4/3/134335978/478894ee18064b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/94e0bae3-548c-4e1b-8abc-b45a2e9e59e6/57070081768.pdfIn PDF document text
    • https://s3.amazonaws.com/liwafo/mount_jordan_middle_school_news.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/41611deb-90a1-4254-9360-cf25c188a8df/27227690432.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f7471e05-0827-494b-95fa-7015fc4d7046/i_am_hook.net.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b8a3f2cc-ba5d-4b5f-bc97-8674da1063f0/17208831243.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d3076dc4-a50a-4f99-a1b3-8683d9ffe4e4/47180916606.pdfIn PDF document text
    • https://xebefawu.files.wordpress.com/2020/11/48378279114.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/232a2631-3121-4802-bbb9-28cefe9f72a5/33446072904.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ff9d0655-2d26-45b0-9b5a-66f5220de67d/credit_card_comparison_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/luxelula/jailbreak_apple_tv_4k_what_can_i_install.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007edb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EDB 4916 bytes
SHA-256: ea851a475e3db11a0293029a1e02e92d6fd2259edd011e75ff79918e922c7d0e
font_01_sfnt_off00008f8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F8F 10712 bytes
SHA-256: 606239196a3c242718916801243bc7b928db1ca61d1d6e7a3832292333b576c6
font_02_sfnt_off0000b3e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB3E9 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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