Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ad64bc534061ab4…

MALICIOUS

PDF

41.7 KB Created: 2020-08-01 02:06:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 50fdaf562d7f187a63289ffb25bf9b8d SHA-1: 7d570eb21e826e933c2be2245bcabfa2c9b2fe1c SHA-256: 7ad64bc534061ab4aeedeeaedf09f9ceac53893f87caa09aca8d506e96959cbf
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL and numerous other URLs pointing to PDF files hosted on Shopify, suggesting a link farm or SEO poisoning tactic. The primary malicious link is https://ttraff.com/pify?keyword=the+secret+world+of+arrietty+kissanime, which likely leads to a phishing or malware download page.

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=the+secret+world+of+arrietty+kissanime In PDF document text
    • http://files.leadersaliveintl.com/uploads/1/3/2/6/132681026/3623686.pdfIn PDF document text
    • http://files.kallers-studio.com/uploads/1/3/1/6/131606546/8828836.pdfIn PDF document text
    • http://files.ccvallevista.com/uploads/1/3/0/9/130969889/123c36e0739d0.pdfIn PDF document text
    • http://files.openstudiocambodia.com/uploads/1/3/0/9/130969310/xakulavunokaxi.pdfIn PDF document text
    • http://megashare.info/watch-spirited-away-online-TWpIn 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://cdn.shopify.com/s/files/1/0437/8034/1917/files/8806597840.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9751/3381/files/wezugolukadesaxalonagugi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7011/9333/files/rugipepuvatuwafadeji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1410/2950/files/zimuponobakujumala.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1828/8285/files/94679460485.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3272/4124/files/mabufot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0406/0071/files/jepowedutivuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zaduvezumutup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0954/7174/files/renironipuwoguxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5834/0774/files/kezet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/mezuwezixodewigin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1901/7124/files/27007168053.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_off000056b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56B9 5256 bytes
SHA-256: 901cb280e2529af22342dbcb2029419b18da5543e0ee5d43dd8b4ac0e8112f3e
font_01_sfnt_off0000687f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x687F 10240 bytes
SHA-256: 14e182a8037f93ab99f3dc42089c203dc7396500e634110184f58176f99db2da
font_02_sfnt_off00008b88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B88 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3