Malicious PDF — malware analysis report

Static analysis result for SHA-256 87f499120f54d671…

MALICIOUS

PDF

50.1 KB Created: 2020-08-22 03:31:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bd9dd40b2315166e1e6f8143c85f2442 SHA-1: 58afb549b1c5a931cab8b3f389d38286b53b857c SHA-256: 87f499120f54d67108feaedad3d8435e33df23d72c5e7e129a55874c35c661f4
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a malicious URL, identified as a redirector for SEO spam. The document body and heuristics indicate a lure for free downloads, specifically mentioning 'sakhi telugu movie songs free 320kbps'. The ML classifier strongly flagged this PDF as malicious, and the presence of numerous external PDF links suggests a link farm or phishing attempt.

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=sakhi+telugu+movie+songs+free++320kbps In PDF document text
    • http://files.creativeplansandservices.com/uploads/1/3/2/6/132682124/vusuw_tevakasejor_bilazudozo.pdfIn PDF document text
    • http://files.golfcarsunlimitedlakecharles.com/uploads/1/3/1/4/131438392/4281009.pdfIn PDF document text
    • http://bimusumal.stjosephschooltrenton.com/uploads/1/3/1/6/131636948/3ea883549aea7.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/1/0428/2767/7852/files/sawuxazibobivekaruje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8870/6717/files/wav_to_youtube.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/7711/8625/files/free_fire_battle_royale_pc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6475/4325/files/24393995886.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2598/7734/files/dupanepufepefifosulaxegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9769/9992/files/skullgirls_endless_beta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0602/4101/files/how_to_make_sea_lanterns_in_minecraft.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8749/5321/files/xibowu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2172/8930/files/raduzupixizibinutu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/9805/4312/files/hotel_del_luna_ost_iu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4425/7442/files/48597391992.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4783/0183/files/zogalipinofoves.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5733/8776/files/64037786711.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3709/0211/files/54378449677.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 4

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_off000084aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84AA 6120 bytes
SHA-256: 00283ec66144e9d3a523113019fcb0e52aa04c1ad0e1b0af34fe12e0d9d08e6f
font_01_sfnt_off0000994f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x994F 9864 bytes
SHA-256: d3fafa93bd05490925b78a1602f1f1cdf88f5313a8864d30a75217f66cd2624a

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