Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f6b2d697c747bab…

MALICIOUS

PDF

59.1 KB Created: 2020-08-17 11:41:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 13009821ceea19b435cf9bc51f336afb SHA-1: 6624a7dcf37bf0df0a4ad256a8780b66c006fc2a SHA-256: 5f6b2d697c747babe1de8ae44942a0f8b7e8f6accea23e35833db85dec43cb23
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to a redirector service known for malicious activity. The document body, though heavily obfuscated, contains a URL that is also flagged as a malicious redirector. This suggests a phishing or scam attempt designed to lead users to harmful content.

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.com/pify?keyword=mabinogi+spirit+weapon+feeding+guide In PDF document text
    • http://files.didntwakeupthisway.com/uploads/1/3/1/3/131379622/wofeziti_jalos.pdfIn PDF document text
    • http://files.orikiritesofpassage.org/uploads/1/3/2/6/132681824/1b98e158b.pdfIn PDF document text
    • http://wosatuma.myneosystems.com/uploads/1/3/2/6/132682883/kelitarexutinedupit.pdfIn 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/1/0431/5208/1053/files/allegra_gotas_bula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3876/1379/files/joxunekegobuvesalav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0462/4021/files/vijofagifado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4209/4755/files/9239799005.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5387/4329/files/problems_on_ages_questions_with_solutions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1087/5815/files/60872149876.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0921/1549/files/65867354595.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6444/9437/files/cardcaptor_sakura_tarot_cards.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/34888362351.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1603/6249/files/my_wifes_hot_friend.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8513/6021/files/lepawa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4988/5606/files/zezurorofigi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4296/1570/files/sensory_integration_activities.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_off0000a834.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA834 5412 bytes
SHA-256: c4acfd41c3106d1cd2506a1f65ed62355a426fbc0160b64493da5fd7de459867
font_01_sfnt_off0000babd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBABD 10668 bytes
SHA-256: 14e2c50dca80dd7dc6d0aba296968a70e51405ab26b1f5aeaab7351f17096a58