Malicious PDF — malware analysis report

Static analysis result for SHA-256 2495ab6043c37ce8…

MALICIOUS

PDF

48.7 KB Created: 2020-08-10 15:02:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 964720eb9c816ad158b999c683115e02 SHA-1: 5545f290c5532ad5908f29414c3c8fc618812980 SHA-256: 2495ab6043c37ce82afd9cb4003a714b17244beb864c138e93151923006d62cc
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic match for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same malicious URL and a URL to a PDF file on Shopify, suggesting a lure to external content. The primary intent appears to be redirecting the user to a malicious site, likely for further exploitation or phishing.

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=apprendre+anglais+grammaire+pdf In PDF document text
    • http://files.roseworksconsulting.com/uploads/1/3/0/9/130969045/5863902.pdfIn PDF document text
    • http://files.thenewstaketwo.com/uploads/1/3/1/4/131407734/soperorawese-kidufujikol.pdfIn PDF document text
    • http://files.starduststudios.com/uploads/1/3/2/7/132712306/zidobetonumobudotino.pdfIn PDF document text
    • http://files.jitfit.com/uploads/1/3/1/8/131856247/madepiz.pdfIn PDF document text
    • http://files.mindfulmedical.vip/uploads/1/3/1/8/131857562/4103249.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/1/0430/0292/1111/files/substitution_and_elimination_word_problems_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8986/3580/files/nupapusefaxikemoxov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8919/9268/files/age_of_empires_2_build_order.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7873/0403/files/joxewidunozobuzusesin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5830/6965/files/24936860345.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7926/2615/files/pandas_reorder_columns.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5222/1091/files/40453708892.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2465/8082/files/zusuwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lozafawofife.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8110/9405/files/toefl_certificate_sample.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5451/1766/files/30780488254.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6926/8373/files/dogatagugepeja.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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_off00006c61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C61 6504 bytes
SHA-256: 902da8ff7ad81ce87de4abbfdd53626023fd025e821139dc0b21e5e92a81bbf2
font_01_sfnt_off00007c97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C97 5348 bytes
SHA-256: 9d739143ee04a6a4ae52835e790cae5a5cd117e22e3923118c968e4f527e4752
font_02_sfnt_off00008eaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EAA 11832 bytes
SHA-256: 3621a5969739a0d273c64332978203f4b70b6177b6c8234c5d27aa2aea0668d5