Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ca5573659ad4799…

MALICIOUS

PDF

38.2 KB Created: 2020-10-15 05:12:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: f0c9873a9494eff94f42ea59393c7fc4 SHA-1: 7b28f626bcc5dba58a59498938e481f26e5e3afc SHA-256: 0ca5573659ad47990408a0e49478f529ed08bddd9d832edf99d2e23f62746a9f
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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://gettraff.ru/pify?keyword=alien+quarantine+game+download+for+android In PDF document text
    • https://site-1037026.mozfiles.com/files/1037026/papopagob.pdfIn PDF document text
    • https://site-1041491.mozfiles.com/files/1041491/mafapinewemij.pdfIn PDF document text
    • https://site-1048452.mozfiles.com/files/1048452/xotijexoferunute.pdfIn PDF document text
    • https://site-1042990.mozfiles.com/files/1042990/sugezaz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367644/normal_5f879c920a14e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367674/normal_5f87612748bc0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365560/normal_5f873f4489e9c.pdfIn 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/1/0480/9637/9044/files/4605218463.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3486/1991/files/30814613862.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3377/8597/files/zowixolewudazedi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e86d95de-d095-461e-8a96-a6802b0a3042/soruxotised.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5d190654-444a-4246-b16e-10a92c8121c0/bawobunidav.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c2eb8245-b1e4-4e58-a1ae-22c661f93e28/kokifajipodawejagubasiz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/17a255c6-0782-418d-a8f7-27a1d3829a7e/kopexigoxafulo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8be57d50-ee5a-4e91-a769-7c43b534c1b3/62163486210.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd9ab451-3044-45c4-a095-d9d7e98df091/kebob.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b66947ae-c4a7-4092-8819-bc443e043a12/68190186876.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0503/0055/1365/files/shield_logo_wallpaper_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/3328/7592/files/hess_law_problems.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_off00004c1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C1F 5140 bytes
SHA-256: 7f809e6a8daec2f0e4b65b4dadcee59932594406439d4bc0eae383dc4c81c6d6
font_01_sfnt_off00005d7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D7F 9292 bytes
SHA-256: 4ac21462bbd9afb37700ee9a72fe6797d55964e1f8ac7c1e4bf017c0ff28f5ec
font_02_sfnt_off00007d4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D4D 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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