Malicious PDF — malware analysis report

Static analysis result for SHA-256 5deb461f4a5814e1…

MALICIOUS

PDF

39.0 KB Created: 2020-08-08 01:53:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e9d16de161e440a760ef865178d66a35 SHA-1: b6d4d1177ba0b52cb8f6ddf5a0413602420d27f2 SHA-256: 5deb461f4a5814e12c5e9da3e7fa4dec4d6bfd2fa499bba19ef5b9e96192ee71
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to mimic search results for popular content, directing users to a redirector URL that likely leads to malicious content. The presence of numerous external PDF links and a critical heuristic firing for malicious redirector infrastructure strongly indicates a phishing or malware distribution attempt. No scripts were extracted, but the document body itself contains the malicious redirector URL.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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.
  • 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://ttraff.cc/pify?keyword=accidentally+in+love+book+pdf+download In PDF document text
    • http://files.525westvanburen.com/uploads/1/3/1/1/131164399/007c9.pdfIn PDF document text
    • http://files.womentransformingtechnology.com/uploads/1/3/2/7/132741382/3698925.pdfIn PDF document text
    • http://files.whalawoffice.com/uploads/1/3/0/8/130874432/nedubatija.pdfIn PDF document text
    • http://files.14445alondra.com/uploads/1/3/1/0/131070859/4385aaed.pdfIn PDF document text
    • http://lawezode.usccssapr.com/uploads/1/3/1/6/131606165/tofini_pugeworupivis_pojesorumutu_xizolukegij.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5743/8101/files/happy_birthday_piano_sheet_easy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4877/2519/files/32554722203.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7188/9817/files/15689507905.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0093/9164/files/xonenasojofaxaberoxawi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3676/2527/files/jafomupo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2356/3925/files/19611260352.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2577/6288/files/metformina_y_alcohol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1960/6936/files/lobixa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7500/9696/files/abn_registration_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0258/4480/files/86257916975.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/95909873105.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_off00004968.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4968 4196 bytes
SHA-256: ca117f44083fee0d02a24a8f3e3efa5959ec655127a500a5b5f2b66bf776b4cd
font_01_sfnt_off0000585b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x585B 5320 bytes
SHA-256: 50acda7bd13ff30df511f0ba554bbd74d4e35324879e82edbf5b6ea33ed2b913
font_02_sfnt_off00006aaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AAA 9980 bytes
SHA-256: 46d7cc18e6a161687c3ed4746dfbbddb1b7a2997c7a179c619d45d192b71a252