Malicious PDF — malware analysis report

Static analysis result for SHA-256 f653d3df2be23f49…

MALICIOUS

PDF

50.1 KB Created: 2020-08-07 06:54:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7574a095c94bd2bcb89782f6aee72ac9 SHA-1: eb27a0fe6ecd151a49609ec37e06be279115d1dd SHA-256: f653d3df2be23f4962f9de063296eaed30e143bdec4b3334a44e90a08c6f22d3
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying it as a malicious redirector link farm. The primary malicious URL, 'https://ttraff.cc/pify?keyword=abraham+maslow+hierarchy+pdf', is designed to redirect users to potentially harmful content. The document body, though heavily obfuscated, contains references to academic topics and the malicious URL, suggesting a lure to disguise the malicious intent. No scripts were extracted from this sample.

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=abraham+maslow+hierarchy+pdf In PDF document text
    • http://files.hurlyvaleprimary.co.za/uploads/1/3/0/7/130738876/kabitegul.pdfIn PDF document text
    • http://files.calebericksonmemorial.com/uploads/1/3/1/1/131163601/27924ab7d9cd781.pdfIn PDF document text
    • http://mugara.gddphotography.com/uploads/1/3/1/6/131606289/9c9b61c754.pdfIn PDF document text
    • http://files.drinkpedestrianstore.com/uploads/1/3/2/7/132712530/nefogosafow.pdfIn PDF document text
    • http://files.tinalouisecalidancecostumes.com/uploads/1/3/1/3/131383942/b9a3e8318.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/1/0432/3773/6603/files/bagesipibixokal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2329/3864/files/66135477569.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1753/3597/files/edgar_alan_poe_libros.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/8689/9350/files/calculus_11th_edition_larson.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4609/9349/files/78648904933.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4704/9623/files/concrete_grade_ratio_table.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/6128/4757/files/how_to_install_wifi_on_linux_mint.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3850/7169/files/85903354495.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9930/8711/files/92117653506.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3777/5256/files/51237296978.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7608/4117/files/6665831544.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0057/8723/files/jepiluworem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3517/1738/files/monti_bristle_blaster.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_off00007a24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A24 5716 bytes
SHA-256: aa0697536769d7f0dca4bcabbced4a6926902c0e9d840137fe6bd7461015f919
font_01_sfnt_off00008d79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D79 1800 bytes
SHA-256: daad3f347a4f42f432ee9983e619a7c063e36761dba5934b469418034847e28e
font_02_sfnt_off00009607.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9607 10784 bytes
SHA-256: aa0e3f8bfd489e870eddbba6696c382f39eb654180090c186146de79d35f6e19