Malicious PDF — malware analysis report

Static analysis result for SHA-256 f13189720a99dc9d…

MALICIOUS

PDF

38.5 KB Created: 2020-08-25 11:46:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 022b20ffd042a9a66ecc7b15bad49032 SHA-1: 7d2adb802f72d24bbc76d8b128234c9f26907a1c SHA-256: f13189720a99dc9d892099b354fb9008b8c190444afa9f2b706cf1c8a7ed6c2a
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector link. The document body text, though heavily obfuscated, contains the string 'Bouncing ball video clip free' and the malicious URL 'https://ttraff.com/pify?keyword=bouncing+ball+video+clip+free', suggesting a lure to a malicious site. 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=bouncing+ball+video+clip+free In PDF document text
    • http://files.vanbarfitness.com/uploads/1/3/1/4/131437984/9016547.pdfIn PDF document text
    • http://files.thecauldron.restaurant/uploads/1/3/1/4/131438899/8852299.pdfIn PDF document text
    • http://fovoti.suepaton.net/uploads/1/3/0/9/130969042/f84f5d5170df9ae.pdfIn PDF document text
    • http://mubozi.namiracine.org/uploads/1/3/0/7/130738667/renabus_tufifusadis.pdfIn PDF document text
    • http://files.sheilatrecartin.com/uploads/1/3/1/6/131637553/da43f863e.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/1/0432/8089/2057/files/mapamundi_politico_para_imprimir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8540/2013/files/boston_scientific_latitude_6290_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4848/4507/files/71372298847.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6743/1329/files/input_validation_c.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7302/7749/files/tokajibigawofipexerisozu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8451/3440/files/wepunip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5742/2229/files/75620724427.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0414/7350/files/tisodizofaru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8834/6262/files/dujaruvaviduzenovuvexiwal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6312/9765/files/12930256249.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
🗂 Part of campaign: suepaton.net 3 samples

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_off000057ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57ED 5396 bytes
SHA-256: 3ac0334be62310cb7b156868632cbd1eb67d451dbf892d1b5c40ed4c78bdb17e
font_01_sfnt_off00006a5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A5C 10228 bytes
SHA-256: 65d7e4be425409a78bac2e5cf513429c8260799ea76db9fed1be0d370b9b2dba

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