Malicious PDF — malware analysis report

Static analysis result for SHA-256 7adb8aef628984bf…

MALICIOUS

PDF

50.1 KB Created: 2020-08-19 07:40:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bd83e39000bb78e1cabd7ba54cebd0ab SHA-1: aea7a58c393c2d24affd1386dda027e227a27a15 SHA-256: 7adb8aef628984bf7fff3171c52bd0488bd78fa018a3f3ce61436ccfabf76782
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body, though heavily obfuscated, contains references to 'Bollywood songs 2019 bestwap' and a large number of PDF links, suggesting a link farm or SEO spam tactic to drive traffic to malicious sites. The ML classifier also strongly indicated maliciousness.

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=bollywood+songs+2019++bestwap In PDF document text
    • http://files.affiliatedtattoofamily.com/uploads/1/3/0/8/130814921/962443.pdfIn PDF document text
    • http://dinul.sdsuaoe.com/uploads/1/3/1/0/131069934/wozizufajibez.pdfIn PDF document text
    • http://files.jorgemendozas.com/uploads/1/3/2/7/132712129/c7d907.pdfIn PDF document text
    • http://files.royalreadsandreviews.com/uploads/1/3/2/6/132695258/5761173.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/1/0432/2567/7982/files/balagtasan_halimbawa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6697/3589/files/12557406510.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1713/4502/files/forubemiwigofojepenowura.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6562/9082/files/the_walking_dead_comic_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0174/1463/files/66348772358.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/3904/2205/files/4_10_by_10_coordinate_grid_paper_in.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6338/6016/files/14253896954.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8137/5648/files/jopok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2409/7191/files/sidekiq_clear_queue.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5771/6127/files/79438228702.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6327/1833/files/rojezalewamavisab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7473/1685/files/fonabotilitejewoju.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 6

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_off0000780a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x780A 5896 bytes
SHA-256: 354d24c2e8aa9119b306ad4c54a892ee8910d0050b5a119104f9a7274b57a593
font_01_sfnt_off00008c41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C41 15260 bytes
SHA-256: f685f692456f0d8d83c208ca83f773729f0508b969ba257bb3bd117adda8efe5

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