Malicious PDF — malware analysis report

Static analysis result for SHA-256 11a707eb6fd267e5…

MALICIOUS

PDF

34.7 KB Created: 2020-10-26 17:37:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: e181638caedc3a98fea0850c627e97ee SHA-1: 4ae2f5ffaa23bb23b60421674afad314508c1238 SHA-256: 11a707eb6fd267e5614f738a9a54ea80bcb65ab2db923b4bc03923034e349e60
152 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to an advertisement-like URL. The document body, though heavily obfuscated, contains a URL that mimics a legitimate software download, suggesting a phishing or malware distribution lure. The presence of numerous external PDF links further indicates a link farm or SEO poisoning attempt to drive traffic to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 3

  • 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 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.
  • 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://gettraff.ru/aws?keyword=adobe+pdf+reader+download+for+windows+8 In PDF document text
    • https://cdn-cms.f-static.net/uploads/4418368/normal_5f9690c7b0fe0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370092/normal_5f8a12576838a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370263/normal_5f959b5d5d21c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389090/normal_5f8dfc2756571.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377704/normal_5f8ab74fc6bf0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367680/normal_5f889ff53eb7c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365607/normal_5f90f0d9687e8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388407/normal_5f93069e9e0a1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376357/normal_5f8ccc1397037.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383128/normal_5f8eaefec25ee.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/xojafemori/dictionar_roman_suedez.pdfIn PDF document text
    • https://s3.amazonaws.com/davawina/4491948545.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/wevowetonolipos.pdfIn PDF document text
    • https://s3.amazonaws.com/jeworurowam/the_game_book_pick_up_artist.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxadol/28517975306.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c2aa643-c100-488f-978c-27efd317cbab/viromikikilevidevutim.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cc044e37-c0a9-45ae-bd1c-254809506c4d/81611110974.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74878818-c9fe-4953-b43d-d8a37b495a6c/acer_xf270hu_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3b00993a-bf72-479e-a51f-e8e71c124084/xupebozirokenajugovofiwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0475/2126/7878/files/4_pin_molex_to_8_pin_pcie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/4173/8911/files/11057114866.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007a87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A87 5452 bytes
SHA-256: 04a246a9fa1f5ec77b750f1ed8f9d0290536f896d5e2cc53533354b4f19be82c

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