Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d751c6326f40e06…

MALICIOUS

PDF

41.4 KB Created: 2020-08-25 14:57:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0cf0aaa4796422cf283a2a1e6cadf7c1 SHA-1: 09b251cd2160c35e8d94d54982dd5fb3c6668d56 SHA-256: 5d751c6326f40e066d30e5b82b2606418faeff33d913969d5093d14a27cde97b
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service that is associated with malicious activity. The document body, though heavily obfuscated, contains a URL that appears to be a lure for a movie download, likely intended to trick users into clicking through to malicious infrastructure. The ML classifier strongly indicates maliciousness.

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.com/pify?keyword=bhairava+movie+video+song++hd In PDF document text
    • http://files.drmeladypreece.com/uploads/1/3/0/8/130813645/gamekafefim-lawutobolowo-kujowisopize.pdfIn PDF document text
    • http://miverolu.mbaker-retail.com/uploads/1/3/1/3/131380771/f803563c8d33e.pdfIn PDF document text
    • http://files.robertalberino.com/uploads/1/3/0/8/130814597/jokexuzibeguwal-gujimowupawadub.pdfIn PDF document text
    • http://files.harchumanservices.com/uploads/1/3/1/8/131858044/dewikuwezoka.pdfIn PDF document text
    • http://geags.com/18pafmIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/computing_the_variance_of_a_discrete_probability_distribution.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3965/3030/files/cancer_de_colon_peru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5265/2951/files/xopiwirixunake.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3884/9694/files/radada.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5414/5444/files/como_convertir_grados_decimales_a_sexagesimales_y_viceversa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6775/8997/files/wg111_v3_drivers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5481/6667/files/tisasajoribev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7611/5863/files/windows_batch_file_scripting_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4915/5746/files/49767439118.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84005007378.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/2446/0445/files/pigajib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7366/6213/files/35331307850.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000055c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55C3 5024 bytes
SHA-256: f216eb67778c91a68d906f5f36f38aae406b91b603daf5b6c3719f5cb0eed58a
font_01_sfnt_off000066a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66A7 11000 bytes
SHA-256: 2919755cbe417f487f9edae8e4babbbd144e2f77ddf927f627d68fb3b4e13167
font_02_sfnt_off00008abd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8ABD 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f