Malicious PDF — malware analysis report

Static analysis result for SHA-256 4db39c0038cc82eb…

MALICIOUS

PDF

59.5 KB Created: 2020-08-12 19:51:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ac9f0df7c12518d68c665c25b04190e4 SHA-1: 600ec407dc7b523d53cba55973c487768f1a06db SHA-256: 4db39c0038cc82eb081251753c68b1db037bf3a7d36febd8e31bc97809f3edb7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains numerous embedded links, with a critical heuristic identifying a malicious redirector at 'https://ttraff.cc/pify?keyword=odisha+railway+map+pdf'. The document body, though heavily obfuscated, contains this URL and references a railway maps, suggesting a lure. The ML classifier also strongly indicated maliciousness. The presence of multiple Shopify-hosted PDF links, even if some are benign, points to a link farm strategy for SEO poisoning or distributing malicious content.

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=odisha+railway+map+pdf In PDF document text
    • http://files.gatheringstitches.com/uploads/1/3/0/8/130874162/fufozupez.pdfIn PDF document text
    • http://files.ctcartwork.com/uploads/1/3/2/6/132695278/moxipadokarolas_balebotobovure_fopenomino.pdfIn PDF document text
    • http://files.lessons-by-alex.com/uploads/1/3/1/4/131438353/dijix.pdfIn PDF document text
    • http://files.renewableblooms.com/uploads/1/3/0/7/130740596/gijomezalakex-jifuridulexol-zeweledo.pdfIn PDF document text
    • http://xalik.1milliontitleones.com/uploads/1/3/1/3/131398367/rosomi.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/1/0434/4132/4184/files/zalunexirimo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0687/0183/files/70725962317.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1332/5471/files/67932984060.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dipudakafadaned.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8878/2236/files/882010483.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2089/4886/files/49186376294.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5072/9634/files/74152975595.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3271/4139/files/kuditatusix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2965/0843/files/finosadevidunimosu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4693/5451/files/risowixidati.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3478/5430/files/nikosumodaxukofoniridupep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/7868051279.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_off0000aae5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAAE5 5500 bytes
SHA-256: 7009893667b521a1096108076928b2264de206ab8db386e09d335959f3fa43a1
font_01_sfnt_off0000bd8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD8C 10340 bytes
SHA-256: ae09f6df3aa6c3ac1cc0b0c19332a488baf966c9fe9c3ff5a4ddf5a9f82bed28

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