Malicious PDF — malware analysis report

Static analysis result for SHA-256 488dc1bb08b17e56…

MALICIOUS

PDF

74.8 KB Created: 2020-08-19 05:05:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 64bcdb1b33e82c916002cdaaed1fd4a7 SHA-1: 9e2c05f0cb7f9c546184799495e17f86b7f0732d SHA-256: 488dc1bb08b17e56e962e4ea4896202adc6b74fc3b512bf1ae7cc887f9bce766
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to a known malicious URL. Additionally, PDF_SEO_LINK_FARM suggests the document is part of a link farm designed to manipulate search engine results. The embedded URL 'https://ttraff.cc/pify?keyword=negative+binomial+distribution+examples+and+solutions+pdf' is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site.

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=negative+binomial+distribution+examples+and+solutions+pdf In PDF document text
    • http://jinumu.shootlikeagirlllc.com/uploads/1/3/0/8/130874493/kepijonefofesarutis.pdfIn PDF document text
    • http://revijoni.wickycandlesllc.com/uploads/1/3/0/7/130739616/a5980a82089.pdfIn PDF document text
    • http://pomolupe.deuceswildcarshow.com/uploads/1/3/0/7/130740080/86673.pdfIn PDF document text
    • http://files.thecircleofdata.com/uploads/1/3/2/6/132681304/zubegadi_pesuzemesomeb_jepulororu.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/1/0431/4162/8072/files/koditupetipimu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3407/4523/files/fetamufegul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7420/7387/files/10015194271.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mirogorozizodixomalejog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1935/2740/files/android_studio_recyclerview_dependency.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7797/5717/files/gasekijafiwixedezo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0418/9096/files/tafokiwizaxiri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0383/8615/files/newivasukamutejaxavu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8126/0440/files/25508378861.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1531/5349/files/sovepitolosiwisoxoza.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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_off0000bf9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF9D 5600 bytes
SHA-256: c313461ade2cb7efd95d561f455c9fa2938a04168f23ee3dc7ab0fe6b9adfa89
font_01_sfnt_off0000d296.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD296 16272 bytes
SHA-256: b638c726774b25e23d12c9403cba98b24007e934e02325da8b23be751f95e725
font_02_sfnt_off000106c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106C7 16492 bytes
SHA-256: 22c74bb22dfa974a75a3afecf94609f27d49a4796d9b7017f33263addc07a504

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