Malicious PDF — malware analysis report

Static analysis result for SHA-256 780c3047bdef1101…

MALICIOUS

PDF

48.2 KB Created: 2020-08-21 18:56:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1b649baba2da901deb18eab3217f1630 SHA-1: f885df651f0cd141ce4ed22fa7dc351002d0223d SHA-256: 780c3047bdef1101d1e6df5fd46794e243221fbfa53e165b66789eac7a7273aa
202 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm designed for SEO manipulation. The primary malicious URL, 'https://ttraff.ru/pify?keyword=hau+bsc+agriculture+online+form+2019', is identified as a redirector. The document body, though heavily obfuscated, contains this same URL, suggesting it's the intended destination for the lure. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.ru/pify?keyword=hau+bsc+agriculture+online+form+2019 In PDF document text
    • http://murizovov.olivialevez.com/uploads/1/3/0/9/130969465/nupiwada.pdfIn PDF document text
    • http://fikek.douxoverdesign.com/uploads/1/3/2/3/132302868/1856062.pdfIn PDF document text
    • http://xonodiwaf.millennialwomen.net/uploads/1/3/1/1/131164250/mejovazib.pdfIn PDF document text
    • http://tejufini.ecardsvs.com/uploads/1/3/0/9/130969679/xojosotasupebu.pdfIn PDF document text
    • http://sojizapux.nmsfamilycenter.org/uploads/1/3/1/3/131380845/e237a8d6e965efb.pdfIn 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/1/0428/3262/5831/files/46043509034.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8090/8951/files/sunopatimadokumijegip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6803/8049/files/29757873815.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2627/6775/files/rimokebibeza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3680/1181/files/chemistry_form_3_notes_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0886/0065/files/cell_and_molecular_biology_syllabus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/juzopuzenafososokazulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3175/6957/files/2015_honda_accord_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9315/6259/files/xamumiforoxok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2677/6227/files/9775040964.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49726552648.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3791/7335/files/kelley_blue_book_rv_pricing_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8199/0304/files/78138977748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2779/8943/files/stop_drop_shut_em_down.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_off00006f94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F94 5668 bytes
SHA-256: 1a3af73e7aa30d7bbb4f849c9258d530a201b01d5ee4365bc1a16178e3bf3bfc
font_01_sfnt_off000082be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82BE 10060 bytes
SHA-256: c83e7295a5523913646ea7b757c98d513e10db1ee82a99571770873dcc6a2813
font_02_sfnt_off0000a52f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA52F 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34