Malicious PDF — malware analysis report

Static analysis result for SHA-256 01612656820fb0ca…

MALICIOUS

PDF

45.8 KB Created: 2020-08-01 03:22:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1f2978cbf4361ddde94215529ebf92e9 SHA-1: 10518d917ad6daf9329d7eb8520294eba6d47df5 SHA-256: 01612656820fb0caf9bef9b9e938d5d77d2d416426172ca24e545f59912ffe4c
194 Risk Score

Malware Insights

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

This PDF document contains numerous links, many of which point to a redirector service known for malicious activity. The redirector URL itself contains obfuscated JavaScript, suggesting an attempt to disguise the final destination. The document also includes a large number of links to PDF files hosted on Shopify, likely part of an SEO link farm to improve search engine ranking for malicious content. The primary malicious IOC is the redirector URL, which is designed to lead users to potentially harmful sites.

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.ru/pify?keyword=javascript%2524%2528%2527.+overlay%2527%2529.+slice%2528+0%252C+100%2529.+click%2528%2529 In PDF document text
    • http://files.six-tech-usa.com/uploads/1/3/0/9/130970003/zudavuronabejo_timobakopazu_zoxademevazaw_fozod.pdfIn PDF document text
    • http://files.gladstoneluthiers.com/uploads/1/3/2/8/132814898/delezuzevo_nirilokozeleruv_terenozifamoji_dekufowe.pdfIn PDF document text
    • http://files.superiorwomenexpedition.com/uploads/1/3/1/4/131453982/jinujeka_sivegi_dugijuzuvegone_lobow.pdfIn PDF document text
    • http://files.mipostcards.com/uploads/1/3/1/3/131381480/mokozufunesip.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/1/0433/6985/7176/files/51861230444.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8698/6908/files/69984045160.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1009/7313/files/19958206397.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1870/6331/files/10672563551.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9928/3863/files/32503268201.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4681/3344/files/ravariwosuxajeguxademoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3728/5797/files/48572198090.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8844/5604/files/perl_warning_setting_locale_failed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3428/0087/files/34595968724.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0948/1624/files/wawepowutizagu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4388/1114/files/merekudefofonujiwofit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0252/7895/files/dugizixujo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7085/7122/files/23483920261.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006456.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6456 5848 bytes
SHA-256: 6312c3d24f9402d3173930d1980e4dc6378a5193554b8141829fa07bfb6e5e15
font_01_sfnt_off00007893.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7893 15908 bytes
SHA-256: f5ecbcb7d2723831bb8ad8d536bb9fdf4dfe1b4ea4defcd1203fd358cdcbbfdc