Malicious PDF — malware analysis report

Static analysis result for SHA-256 02563e655e4a311b…

MALICIOUS

PDF

53.9 KB Created: 2020-08-10 08:09:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1391127801103583f8c442f1f4874b73 SHA-1: dd658070731f466db0d1b2cf80b8221ccdd3f8ae SHA-256: 02563e655e4a311b4b6cc289dd64b2b517db7f4abdb3dc6b2d642a6aecdb2f40
194 Risk Score

Malware Insights

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

The PDF contains a link farm with 30 external PDF links, many of which point to SEO-optimized URLs designed to appear as legitimate downloads. The primary redirector URL, https://ttraff.com/pify?keyword=mathematics+books+for+class+11+pdf, is flagged as malicious and likely leads to a phishing or malware distribution 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=mathematics+books+for+class+11+pdf In PDF document text
    • http://bofatifi.guerrillazoo.com/uploads/1/3/1/6/131607029/dilitizuvamikuzu.pdfIn PDF document text
    • http://files.erik-myers.com/uploads/1/3/1/0/131069887/sasoga.pdfIn PDF document text
    • http://files.ellisonjazzmuseum.org/uploads/1/3/0/7/130739793/nogejagesemu.pdfIn PDF document text
    • http://files.mudgleyholidayhouse.com/uploads/1/3/1/4/131453650/ba273df1.pdfIn PDF document text
    • http://files.lucynthiaent.com/uploads/1/3/1/8/131856076/vadonavas_zobijeramemibar_zumale_pejipo.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/1/0429/3279/7607/files/83985496855.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2181/1362/files/budget_sheet_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71061356311.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0460/8155/files/tirilinedizamaliputewizof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5032/0543/files/absceso_hepatico_piogeno_tratamiento.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2175/4787/files/jimira.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7252/0352/files/mixixuripugugutejenexi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zosakasebiribo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9072/9377/files/chander_pahar_bengali_book_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4886/9786/files/72921626684.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007ecb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7ECB 5656 bytes
SHA-256: 990b4cbbdb39da0589a2cb1efbe1d442d67835d9c6ee7c7994da1a7c11ddc48c
font_01_sfnt_off000091eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91EB 10148 bytes
SHA-256: 7342cc578582a9c4c88b6ace39c3dfde8455b9c148a65a79f4255b77a5875a0b
font_02_sfnt_off0000b502.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB502 16244 bytes
SHA-256: dc743b41e5c9b9e4d56ad8c22d1311c6eb3cecbc0d04401a7a33aeed2fa7944a

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