Malicious PDF — malware analysis report

Static analysis result for SHA-256 7915aff805ebdd87…

MALICIOUS

PDF

42.3 KB Created: 2020-08-24 07:00:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b0989823ef1129c7298382d150eee70c SHA-1: 84da7e0e17c3f4da1ce8ca372884fdbd88511f01 SHA-256: 7915aff805ebdd874cc875a6e0cabd77d29c53e2c503103ba6289da0c7d0e3bc
194 Risk Score

Malware Insights

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

This PDF file contains numerous links, many of which point to a redirector service designed to obscure the final destination. The primary redirector URL, https://ttraff.com/pify?keyword=mixed+punctuation+worksheets+grade+6, is identified as malicious. The document body, though heavily obfuscated, also contains this URL and other links to what appear to be SEO-optimized PDF hosting sites, suggesting a phishing or scam campaign. The ML classifier strongly indicates 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=mixed+punctuation+worksheets+grade+6 In PDF document text
    • http://files.mallorywinkler.com/uploads/1/3/1/3/131380467/4351960.pdfIn PDF document text
    • http://files.vielka.com/uploads/1/3/0/7/130776327/dolezoxitukugas_furiwonufu.pdfIn PDF document text
    • http://files.yourgiftgarden.com/uploads/1/3/1/4/131483149/xajub-tezowebekamaguw-zatepokoverunez.pdfIn PDF document text
    • http://duzena.cuasp.org/uploads/1/3/1/6/131606490/6810122.pdfIn PDF document text
    • http://files.eltapancorusticfurniture.com/uploads/1/3/0/7/130739449/3b2eb1f3e846.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/1/0428/7424/1187/files/54978452053.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/1057/5771/files/maths_olympiad_books_for_class_11.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3646/7612/files/527383692.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/2127/5033/files/create417_barcode_in_c.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/3038/4537/files/michael_jackson_type_song_onlineaudio-_converter._com.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0791/7729/files/fenima.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1229/8648/files/94097525100.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1542/1599/files/nurezokub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0876/0742/files/63300778598.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/9275/4841/files/rejobijo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9827/3944/files/suxebebisuxekilag.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 6

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_off000066a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66A0 5688 bytes
SHA-256: 3207c6188af04f366ed22aaab0493245791be799a33a041bc80348e19c968028
font_01_sfnt_off00007a14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A14 9952 bytes
SHA-256: 3dd1d2bb2db6ba61edaa39ca89b7cd27462ecb90e1fd2bb84e480a119e3b6151

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