Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cb86bbe0957a46b…

MALICIOUS

PDF

45.7 KB Created: 2020-08-10 10:24:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 26fbdf3912a517493110335a5b76619d SHA-1: 46afebd18ec9a2bd7c677f72c880f26f29b2c67a SHA-256: 6cb86bbe0957a46bff7ee9b001d7a12ff8dd286a6406aa35825c735b9550cbaf
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external PDFs, many of which point to a redirector URL (https://ttraff.com/pify?keyword=bodmas+questions+for+class+10+pdf). This suggests a link farm or phishing lure designed to trick users into clicking malicious links. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the PDF structure and embedded links are indicative of a phishing or malware distribution 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=bodmas+questions+for+class+10+pdf In PDF document text
    • http://files.ibunson.com/uploads/1/3/0/7/130775435/xexajekabadumerijiko.pdfIn PDF document text
    • http://mameja.avimehta.com/uploads/1/3/0/7/130775934/40a7e202c22607.pdfIn PDF document text
    • http://files.apple-itchyfeet.com/uploads/1/3/1/3/131383434/gukukexogizowi.pdfIn PDF document text
    • http://files.charlie-myers.com/uploads/1/3/1/3/131383456/tageliratuju_tipenubexok_tikiremeluvo_silepo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vinujavezo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2563/6248/files/fisebidadigufowipapekax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8249/7701/files/interview_questions_and_answers_on_data_structures_and_algorithms.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6411/4852/files/77085595116.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2567/9015/files/xorola.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7631/2478/files/37803288914.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5797/1362/files/55795117465.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9277/8912/files/49781334115.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8054/8503/files/pipowonokolexibatalabape.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9046/9283/files/8127628191.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3612/8933/files/dejipevufuromil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3251/8555/files/the_pocket_handbook_of_image_processing_algorithms_in_c.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000641d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x641D 5552 bytes
SHA-256: 41cc5126f461e337f253ce74d8be1e44ac39cb383e13e818fa476e204916ac2a
font_01_sfnt_off000076e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76E5 10644 bytes
SHA-256: 749486b3d070f8ed13cae5d34f9635cec6fc0e7e3c2c759347edf544de58faab
font_02_sfnt_off00009b16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B16 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c