Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad130c91a4133293…

MALICIOUS

PDF

45.0 KB Created: 2020-08-24 07:59:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5858f214802e2d03901c167f58646ae7 SHA-1: e4d31db2127d685ebe909af38fd039ac796bbffa SHA-256: ad130c91a4133293217c0ffe3c93cc475e1db82c390b715544303fa53fe779cf
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=quarter+inch+ruler+template'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on Shopify. The document body, though heavily obfuscated, also contains the same malicious URL and several benign-looking Shopify URLs, suggesting a lure to a malicious site. The primary attack pattern involves redirecting the user to a malicious destination.

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.cc/pify?keyword=quarter+inch+ruler+template In PDF document text
    • http://files.astuntech.com/uploads/1/3/1/8/131871625/9dd6066d744.pdfIn PDF document text
    • http://files.heebeegeebeehealers.org/uploads/1/3/0/7/130739340/de305.pdfIn PDF document text
    • http://nofafapis.2findyourhomevps.net/uploads/1/3/1/4/131406082/wupedamidijalus.pdfIn PDF document text
    • http://files.thepowerhouseuk.com/uploads/1/3/0/7/130739809/lalopitasoweku.pdfIn PDF document text
    • http://files.ophthalmicseminars.com/uploads/1/3/1/0/131070651/pumepodokum.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/1/0435/4398/6327/files/imdb_hitchhiker_s_guide_cast.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8788/8535/files/fixinosev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4205/4048/files/pusuxavusoto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4932/0610/files/watchers_of_the_throne.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7505/8329/files/25247896366.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1676/5087/files/abbyy_transformer_3._0_serial_key_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7613/0718/files/freeport_tx_tide_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4521/5656/files/mamomuzasinoguvijanuzavod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2079/5556/files/35900267198.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8890/3325/files/25938410912.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8037/5704/files/xoratejemawusaje.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_off0000631d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x631D 4828 bytes
SHA-256: 04f2b7d6ead049ca3aa0051655038dbcb7397f4cf89728018570fdf6ff7eb0e4
font_01_sfnt_off00007351.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7351 10940 bytes
SHA-256: c4886d09561f46d284ee14dcbad135a9c22c996341ef5e269c7d42fb2bdc1423
font_02_sfnt_off000098cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98CC 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361