Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb64f266f3223e68…

MALICIOUS

PDF

38.3 KB Created: 2020-08-11 12:56:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ce95d746aa15d61ba11f042ee058ab70 SHA-1: d0582ba4b85e87a9d458e8e4f4113c778cd560e2 SHA-256: fb64f266f3223e68594190c014a0001a1354467e890a0660dd9157ea89df3b96
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.cc) that is flagged as malicious. The document body and heuristics indicate this is likely a phishing lure, attempting to trick users into downloading further content via a link farm. The ML classifier strongly supports the malicious nature of this PDF.

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=ccsa+checkpoint+pdf In PDF document text
    • http://nefizovad.nzimahse.com/uploads/1/3/1/0/131070571/7639233.pdfIn PDF document text
    • http://mazopo.skullvalleylavender.com/uploads/1/3/0/8/130874276/retotagosovuni.pdfIn PDF document text
    • http://files.artawol.com/uploads/1/3/1/4/131407796/fakagoxipuvapor_ganum.pdfIn PDF document text
    • http://kafetev.kibbutzprogramcenter.net/uploads/1/3/1/1/131164250/dekidebisusos.pdfIn PDF document text
    • http://files.fccwareham.org/uploads/1/3/2/7/132740860/4414195.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/1/0431/7754/1787/files/tanovumobu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0375/4142/files/the_stranger_by_chris_van_allsburg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6245/0586/files/natipeso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3014/2363/files/xexezopikis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6971/8172/files/82601770136.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0057/8723/files/bls_provider_manual_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6284/5859/files/53610007039.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0087/9510/files/11568769630.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9263/1962/files/adobe_reader_viewer_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4398/7357/files/mubuzan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6830/1212/files/73753888715.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 8

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_off0000559c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x559C 5084 bytes
SHA-256: 92b064fb3ea2d0bb8231afa89439c42d481cd74bdeb851faa4ddf4755ce8baab
font_01_sfnt_off000066dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66DC 11192 bytes
SHA-256: ca03a017d5610d313edac4bd9e07b0963226f3eb79138a5987923d39c68ae6b6

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