Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf7ab70965aba4a9…

MALICIOUS

PDF

40.2 KB Created: 2020-08-15 01:25:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6e7e0eeb935ed8b8e7db6b35573b2b13 SHA-1: 1c8fcde930abd0aad375377040b9800e5ff2a0ea SHA-256: cf7ab70965aba4a95f16df6e3e4dd695cca51eb9480578d4415c1569a7c26cb5
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links directs to a known malicious redirector at 'https://ttraff.ru/pify?keyword=jeopardy+think+piano+sheet+music'. This suggests the document is designed to lead users to malicious infrastructure, likely for further exploitation or phishing. 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.ru/pify?keyword=jeopardy+think+piano+sheet+music In PDF document text
    • http://files.zionsvillechamber.org/uploads/1/3/1/8/131856353/pigazodozuzuv.pdfIn PDF document text
    • http://files.dudsburycamp.co.uk/uploads/1/3/2/6/132681409/vuzurelufesuki_tuzolibilesivi_fejikixewame.pdfIn PDF document text
    • http://files.plastersurrey.co.uk/uploads/1/3/1/3/131381363/nenoxajiwi.pdfIn PDF document text
    • http://vexitifax.breemcewan.com/uploads/1/3/0/8/130813528/fetad.pdfIn PDF document text
    • http://files.rina-bansuri.com/uploads/1/3/1/4/131406659/kitufaxaga_sidisetiv_vexikitafot.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/1/0434/4859/8678/files/vamurevebezomalude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5552/0673/files/bulthaup_b1_preisliste.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4899/2930/files/15445692307.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7998/1470/files/blender_for_win7_32_bit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9915/2799/files/98281977623.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3861/3415/files/64519268739.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4959/1718/files/fipolemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1759/1189/files/aerodynamics_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3531/0752/files/vipikozuvati.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7404/4579/files/movekugikoz.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_off00005e20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E20 5436 bytes
SHA-256: 2111d44b4249b081f46abd666840c98f077353868f6d52a6d3f69f8ef0539a1c
font_01_sfnt_off00007077.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7077 10420 bytes
SHA-256: a6533aaf1aa569051a6b156a1bf6324e60e3cfc4faa12bc079d56ebdb699ccc2

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