Malicious PDF — malware analysis report

Static analysis result for SHA-256 745a4aff6dc40348…

MALICIOUS

PDF

57.1 KB Created: 2020-08-01 13:12:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fb3da8a2ecf1e75c95621a21f23fa1ed SHA-1: 19f1988822e379de8ee6b0e8c8ca99d729ea2ad8 SHA-256: 745a4aff6dc403482b5c946928d48e11ddaf8a23d7532dcd10b25bec5ee94586
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector infrastructure known for malicious activity. The document body, though heavily obfuscated, contains a URL that appears to be a lure for 'Fairy Tail Zero episode 2', suggesting a phishing or scam attempt. The ML classifier strongly indicated maliciousness, and the presence of a link farm further supports a malicious intent to redirect users to potentially harmful sites.

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=fairy+tail+zero+episode+2 In PDF document text
    • http://files.makingmathmiracles.com/uploads/1/3/2/7/132710786/9520723.pdfIn PDF document text
    • http://files.dearborn411.com/uploads/1/3/2/7/132740860/xokagilo.pdfIn PDF document text
    • http://files.dfwfunbounce.com/uploads/1/3/1/3/131398479/1bcf7c48f6b62.pdfIn PDF document text
    • http://files.srmsmusic.com/uploads/1/3/2/6/132695244/xedivoni_vikakuwefe_tikifelep.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/1/0433/0687/7080/files/xikosimuzewenox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7075/7791/files/62222782411.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4112/8601/files/beripujefaxiselunuwif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2252/3288/files/38061336223.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9353/2573/files/67093729435.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0263/4148/files/68774797603.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4040/7701/files/22085750657.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8642/0893/files/mopusoxudamij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7813/1611/files/ansi_asq_z1_4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3759/5560/files/63501694465.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4489/6925/files/betizamedutab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4747/7667/files/99774908615.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1891/0870/files/40246420671.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8207/2732/files/rufigojapozefirarubeweba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3081/3589/files/gujafajit.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_off00006d3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D3E 16520 bytes
SHA-256: dc9708fdf7def89d9f2ab3e2ff93d8144cdca49d6e034e66cd29a9f7e3da905f
font_01_sfnt_off0000a2cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA2CD 5192 bytes
SHA-256: c6100f659516123515f1474efba25169cbe2a629cd2c1e3baa502147a8d823de
font_02_sfnt_off0000b498.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB498 10048 bytes
SHA-256: 13f8f8b54c55c3f268ae77ae7686a21289cca7983ae64cbc8535c523af2d7b36