Malicious PDF — malware analysis report

Static analysis result for SHA-256 0cc9a7a726ffd039…

MALICIOUS

PDF

36.6 KB Created: 2020-08-21 21:38:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a0bacc80c2e14afb100add45ee8dc60a SHA-1: bc8dd271e2356064b591a12e6e552ec81877debd SHA-256: 0cc9a7a726ffd039e7a8c0b2b64a9303ef87e1da93b195bbd99da55ab667d4f3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, with a critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that matches the redirector found in the heuristics. This suggests the primary purpose is to redirect users to malicious sites, likely for phishing or malware distribution.

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=lagu+dj+cinta+karena+cinta+metrolagu In PDF document text
    • http://files.ucalgarycase.com/uploads/1/3/1/0/131070688/c85759938b1c.pdfIn PDF document text
    • http://files.thelostartoffemininity.com/uploads/1/3/0/9/130969772/1bf93ebba0976d.pdfIn PDF document text
    • http://files.virginiamnhistory.com/uploads/1/3/1/3/131398333/wagilorexesa-jidowuwi-dajosezosaje-namuduxujipo.pdfIn PDF document text
    • http://fobopin.pinelakemanor.com/uploads/1/3/1/6/131606490/nomipawodoreneda.pdfIn PDF document text
    • http://files.theroombrighouse.co.uk/uploads/1/3/0/9/130969879/xamot.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/1/0432/2682/4859/files/cheap_formal_dresses_in_toronto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3296/7318/files/kukavoki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2478/4292/files/nenolakafisoserafanuji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8244/1113/files/zepejifiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1311/1961/files/pexufowitatogaxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8113/7316/files/ravigikisitufakojaripidag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4145/5254/files/functional_skills_maths_level_1_workbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tokon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8333/3786/files/xifujusama.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004826.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4826 3016 bytes
SHA-256: 07efd4b5ce35fe43d562a47bea6ca2be7e52a32f6dbf0d49a2a72276c44a66d1
font_01_sfnt_off000052e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52E1 5160 bytes
SHA-256: db6a24373b2144f74768cfe2758e0f79d1073fbec66ba98d41e894a257072b58
font_02_sfnt_off0000645d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x645D 9672 bytes
SHA-256: 68530cbb4c5045ee6e4d4878a8200188215e2a10c3a250a9b7da73fcf83a5e24

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