Malicious PDF — malware analysis report

Static analysis result for SHA-256 78620cf85d171cda…

MALICIOUS

PDF

41.6 KB Created: 2020-08-21 18:23:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8936a31d170ebf368be08a8497a7d6eb SHA-1: f0abbee5b6eb832786a4b971ba4934663614fb7e SHA-256: 78620cf85d171cda0722d716f1e93f3b6b3de826d40b41893937e8697e55446e
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector disguised as a download for anime content. The primary redirector URL, 'https://ttraff.cc/pify?keyword=anime+batch+baki', is flagged as malicious. The document body, though heavily obfuscated, contains this URL and other PDF links, suggesting a phishing or scam attempt to redirect users to malicious infrastructure.

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=anime+batch+baki In PDF document text
    • http://files.geraldinepilgrim.com/uploads/1/3/2/8/132815346/6780435.pdfIn PDF document text
    • http://pedomefi.redlineinstallers.com/uploads/1/3/2/6/132680981/jojufunijovowewobu.pdfIn PDF document text
    • http://files.grandprixdrivingschool.net/uploads/1/3/1/6/131637385/poredisomufuni.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/1/0431/3058/5239/files/21237602188.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1275/1523/files/kenonojiranadiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6418/8312/files/turuxufilogupalabogoxut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9235/2928/files/genesis_king_james_bible.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5654/6467/files/kulofagerekagosupuvalisis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2654/4802/files/cartesian_philosophy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9496/4392/files/bertrand_russell_unpopular_essays_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4169/2570/files/79777107074.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2309/6216/files/usg_guided_psoas_abscess_drainage.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9037/8909/files/xopofor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7607/5164/files/5224658412.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9713/7056/files/beped.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000067e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67E7 4928 bytes
SHA-256: e803d8e0ef0a8b8d1bb5f9ce95848336307d7f43cd3fea76beec6f5ff2a48780
font_01_sfnt_off00007876.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7876 9636 bytes
SHA-256: d85c3b9b8cebef5b523bb7d4bf91770a6a7f54eac1077ba21695bf1d1b28aec4

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