Malicious PDF — malware analysis report

Static analysis result for SHA-256 71762a66f98e17f5…

MALICIOUS

PDF

49.6 KB Created: 2020-08-05 09:06:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4fd2fc281daf6018782b591b1c568554 SHA-1: 6b0e87cd1430b8d58698a3b5a89156ca1fbbacc7 SHA-256: 71762a66f98e17f5606d46941454cb4bbf4f764f8528b49598ac7602e22e7fb9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to a redirector service known for hosting malicious content. The primary redirector URL is 'https://ttraff.com/pify?keyword=20+feet+container+dimensions+pdf', which is also present in the document body. This suggests a phishing or scam attempt using SEO tactics to lure victims into clicking malicious links disguised as legitimate downloads.

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=20+feet+container+dimensions+pdf In PDF document text
    • http://files.unibross.com/uploads/1/3/1/8/131872048/ce62b.pdfIn PDF document text
    • http://files.customgroundsmanagement.com/uploads/1/3/1/4/131453024/550b74970c.pdfIn PDF document text
    • http://files.baskervilletravel.us/uploads/1/3/1/3/131384643/fewerotugonomekatut.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/1/0429/9233/7059/files/14398098969.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5950/1464/files/how_to_make_emotes_for_twitch.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3501/7884/files/bavulanolewetaraxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4439/7471/files/kirasu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8830/6586/files/week_number_calendar_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7510/7992/files/teoria_sociologista_del_delito.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3218/9860/files/texas_vehicle_bill_of_sale_template_fillable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2652/0986/files/76148250862.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8759/3632/files/how_to_delete_rows_in_google_sheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5833/9733/files/31247001405.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6332/8411/files/fizejev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3550/0439/files/best_novels_of_all_time.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 1

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_off00006e01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E01 5236 bytes
SHA-256: 413e83f1b9fa9982937bbcce7023819a5a53103fb23709a39f51b9a344adc5b4
font_01_sfnt_off00007f9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F9C 14132 bytes
SHA-256: 4b92cc9aaa217423d7c722d9c16b747aa60e70f29177b5f2f73ca5a40a8d3b26
font_02_sfnt_off0000aba3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xABA3 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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