Malicious PDF — malware analysis report

Static analysis result for SHA-256 787d1f2131482af6…

MALICIOUS

PDF

45.4 KB Created: 2020-09-11 19:31:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 84bdcfe4083d70ec3d26271a37f91bcb SHA-1: 1607f172ab059d0a573ff511c1869955d5f477eb SHA-256: 787d1f2131482af62be11fe94e26a95617a721cc52efc83d4b9f24abfeb04f93
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, including one pointing to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text suggesting a lure for 'latest bollywood hits songs free', which is likely a pretext to entice users to click the malicious link. The ML classifier strongly indicated maliciousness, and the presence of numerous external PDF links further supports a malicious intent, likely for phishing or malware distribution.

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.me/pify?keyword=latest+bollywood+hits+songs+free In PDF document text
    • http://files.arespta.org/uploads/1/3/1/6/131607310/xafasapomika.pdfIn PDF document text
    • http://nemuko.hannahrose-blogging.com/uploads/1/3/2/6/132683121/d1b8c.pdfIn PDF document text
    • http://files.waialaekahalachapel.com/uploads/1/3/0/8/130815437/kisizuponamirelata.pdfIn PDF document text
    • http://gorevu.ryanacademy.org/uploads/1/3/1/3/131382134/3d4aa1c02935.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/18122d_38e3058b00b94c858a084b712b9a329e.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4539/5368/files/gounod_pater_noster_ed._rigaudiere_sheet_music_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4686/8891/files/59329233281.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8702/8641/files/daily_calendar_planner_template_2018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5850/2563/files/cliffsap_biology_3rd_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/1915/4086/files/roxaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3642/5883/files/komadirazo.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_off00006a2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A2E 5444 bytes
SHA-256: ed5a465873d1eae2a29e5d4259f507d44e050b4476d456a2231b58b7a299ab41
font_01_sfnt_off00007cc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CC4 14348 bytes
SHA-256: 1363575299b44d8bbd58fcda8e0ba77f266e7e8893559f73f772dee93e248f78

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