Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1a007c0575c109a…

MALICIOUS

PDF

34.0 KB Created: 2020-08-01 17:02:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 747015313a7b544b96983719703bbf4e SHA-1: 68f1b86646c80f93116be3bebb283d44148b1a80 SHA-256: f1a007c0575c109a11fe716443413c9ca3f6d18a556d15110c7bac4b3a90cf1c
194 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to a critical heuristic firing for a malicious redirector link. It also contains a large number of embedded external links, characteristic of a link farm used for SEO poisoning or to distribute malware. The primary malicious URL identified is https://ttraff.cc/pify?keyword=is+nyannyancosplay+a+guy, which likely serves as a gateway to further malicious content.

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=is+nyannyancosplay+a+guy In PDF document text
    • http://files.stcloudpantry.org/uploads/1/3/1/1/131163738/gilagozikefarede.pdfIn PDF document text
    • http://files.enelectuas.com/uploads/1/3/2/6/132695472/wepen-rododiwavu-xuvasosadatoj.pdfIn PDF document text
    • http://files.cvma32-2.com/uploads/1/3/2/6/132681579/468494.pdfIn PDF document text
    • http://files.gretchenstelter.com/uploads/1/3/0/8/130874368/mejalup.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/1/0432/5982/2244/files/19389935673.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3190/3902/files/49097046232.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8729/7696/files/50594339708.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3401/6924/files/microsoft_document_imaging_to_converter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7409/2196/files/vadotewasar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6689/2186/files/fitewusunajiruku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9482/6405/files/52212940716.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7752/3873/files/73882713214.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6268/0984/files/bunejegone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7659/7400/files/60021511371.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 6

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_off00004727.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4727 5044 bytes
SHA-256: 7b59ec4858dbb1847f79de8a33cd4d09fb5a3f435c28bfaf202a3ac98a382b71
font_01_sfnt_off00005872.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5872 10260 bytes
SHA-256: b26103b4746965b442409218ba25ce2c26107421cf9f519a51ec6b08ffe90046

Open this report in the interactive analyzer, or submit your own file for analysis.