Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffaf0d6cbbe61386…

MALICIOUS

PDF

46.7 KB Created: 2020-08-14 23:17:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9d55d79011462c7c1a6b7e8b9a6f79e4 SHA-1: 808879952b5d73f002203c449c72291b30fad747 SHA-256: ffaf0d6cbbe613869956f1fe826c9a18bdfd6e77d6482aaea8108316edb3399a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to benign Shopify URLs, but a critical heuristic identified a link to a known malicious redirector. The document body, though heavily obfuscated, contains the malicious redirector URL. This suggests the PDF is designed to act as a link farm, with the primary malicious intent being to redirect users to the `ttraff.cc` domain.

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=sqlite+android+studio+image In PDF document text
    • http://files.danielsphoto.net/uploads/1/3/2/7/132710748/vupuliluravi-xuzolesoju.pdfIn PDF document text
    • http://files.imprintmarketing.com/uploads/1/3/1/8/131856257/9188607.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/1/0448/0460/4066/files/sony_dhg-_hdd_250.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8683/2035/files/samouczek_angielski_dla_pocztkujcych.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5521/0905/files/bootstrap_center_image.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3880/2073/files/99182495268.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/16175378270.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7926/1590/files/school_absence_request_form_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6647/4139/files/90041179480.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7583/6840/files/61513557959.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/1917/7882/files/receptive_bilingualism.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8236/6629/files/livip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1053/1238/files/27127159149.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5920/6558/files/ps_i_love_you_jenny_han.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 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000076b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76B8 5376 bytes
SHA-256: 9adbca863f9738083b29c7f990cacfeee5c0b92fdaa73e6ece5a8ea7262afc32
font_01_sfnt_off000088d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88D3 11068 bytes
SHA-256: ab6aeb6ebeec2149ee1a2f1604a669b82cc062a20161b47b63467b1dad1988a5

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