Malicious PDF — malware analysis report

Static analysis result for SHA-256 07a84fff976c3630…

MALICIOUS

PDF

45.0 KB Created: 2020-08-08 22:14:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8f6016f5929f959bf7ed843f5d763d63 SHA-1: 4e4805cd5a22d07fe078b1ca77f0e31e53511e2c SHA-256: 07a84fff976c36301fcd5797fdfbb815c0739dc71606deacdd58ab8bd2dd15dc
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with a critical heuristic firing indicating it redirects to known malicious infrastructure. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. This suggests the PDF is designed to trick users into visiting a malicious site, likely for phishing or malware distribution.

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=interior+angles+of+a+triangle+pdf In PDF document text
    • http://files.trueembodiment.com/uploads/1/3/0/9/130969300/7937817.pdfIn PDF document text
    • http://files.agriculturallandservices.com/uploads/1/3/1/4/131455475/5791440.pdfIn PDF document text
    • http://files.smokyridgecoffee.com/uploads/1/3/2/3/132302824/wizawawesu.pdfIn PDF document text
    • http://files.saujs.co.za/uploads/1/3/2/6/132681824/8694376.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/1/0431/5866/7430/files/dovekavuxekoxugok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5654/6467/files/6477166024.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5934/7618/files/48292500155.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9501/4056/files/english_grammar_test_intermediate_level.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9994/5112/files/english_word_search.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6051/7271/files/depresion_alcoholismo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0016/8597/files/xutulagar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4349/5841/files/zoxebisabitekano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5327/7603/files/the_almanac_of_american_politics_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0985/8984/files/binerezaxopepasivel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0923/6374/files/gogixilifuxijewub.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000667f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x667F 4936 bytes
SHA-256: 9e4ddb5e5b3b9affa8f9be94bf2a44d6a05ae185dc96ca91cf3e8a94d157863c
font_01_sfnt_off00007749.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7749 9928 bytes
SHA-256: 4f1fb4eb046cf8472fec5d5e57de7dcc950da961b05499a042f07c63f74ee989
font_02_sfnt_off00009938.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9938 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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