Malicious PDF — malware analysis report

Static analysis result for SHA-256 9320c015e9342cef…

MALICIOUS

PDF

63.7 KB Created: 2020-08-10 01:48:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fa791d9fb3142852f547f849ae54d5e0 SHA-1: 3e39f03237f5578eba8a13f914293d7940a09dbe SHA-256: 9320c015e9342cef5d1740b042a637d0591d480e88ef119254a887a4711ea3db
194 Risk Score

Malware Insights

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

The PDF contains embedded links that point to a known malicious redirector, ttraff.com. The document body, though heavily obfuscated, also contains this URL, suggesting it's the primary lure. The presence of numerous links to external PDFs, many hosted on Shopify, indicates a link farm strategy to improve SEO and distribute the malicious payload. The ML classifier strongly supports the malicious nature of this PDF.

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=basic+of+java+programming+pdf In PDF document text
    • http://files.tammystillwaterdogs.com/uploads/1/3/1/4/131452997/mewudebifinoled.pdfIn PDF document text
    • http://files.flourishmovement.net/uploads/1/3/0/7/130738562/164473.pdfIn PDF document text
    • http://files.changingoutcomes.co.uk/uploads/1/3/0/8/130874544/6405088.pdfIn PDF document text
    • http://files.southashlandumc.org/uploads/1/3/1/3/131378932/vafezijugotaf.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/1/0431/6338/6016/files/vojowugebe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3175/6957/files/minecraft_knight_skin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5387/5357/files/judikoxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1892/5726/files/telekejowexibas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3545/7698/files/gaxixitasasirozaka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3276/3801/files/lagonenabojeso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9981/4040/files/atlas_de_microbiologia_veterinaria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0161/8330/files/michael_savage_mp3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9212/3560/files/jenirapapololawifoda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6484/2647/files/amplitude_modulation_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7677/2250/files/nakefufekobavupina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gofifarigomikidapowokov.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_off0000ad21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAD21 5628 bytes
SHA-256: d989ecee97e7b80addf4d74973fdf1c8bd86e51c5d9f718116929df12d5b48b2
font_01_sfnt_off0000c041.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC041 15712 bytes
SHA-256: f438be91d12e2d36411f49aa40734b3b1b8e79bc96b6fc6e26ffce7bb2b17845

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