Malicious PDF — malware analysis report

Static analysis result for SHA-256 077e92a44c8a2c67…

MALICIOUS

PDF

48.6 KB Created: 2020-10-25 08:08:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: eae0f7ce093d51ba37f1eb64b0a73449 SHA-1: 36c4a73d816e5831b55ef970f85358cb66a6905e SHA-256: 077e92a44c8a2c67f6027340869051c677e7fe8e1d749caae98b982280824512
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://cctraff.ru/123?keyword=font+styles+app+for+android In PDF document text
    • https://wosezobar.weebly.com/uploads/1/3/1/8/131856012/86e61.pdfIn PDF document text
    • https://bavejojonosepes.weebly.com/uploads/1/3/1/3/131380601/1ab47d4752a4bb.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/nojof.pdfIn PDF document text
    • https://robivitoj.weebly.com/uploads/1/3/4/3/134334713/3710575.pdfIn PDF document text
    • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/mezevoxinokimuwamibu.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/a18b68879d139d2.pdfIn PDF document text
    • https://pidofuvu.weebly.com/uploads/1/3/0/7/130739764/5686802c.pdfIn PDF document text
    • https://jalewigevat.weebly.com/uploads/1/3/2/6/132681207/xovodotizepazobuvow.pdfIn PDF document text
    • https://jezaxegare.weebly.com/uploads/1/3/1/3/131380636/ronexa_pesoritixinabud_mamuvekozimo.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007f60.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007f60.bin)
    • https://s3.amazonaws.com/lopadivupudexa/ganixufalopiwulodeleg.pdfIn PDF document text
    • https://s3.amazonaws.com/susopuzupure/3203948065.pdfIn PDF document text
    • https://s3.amazonaws.com/nazekisigiduz/manualidades_en_madera_paso_a_paso.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1e1e85c-ee5e-4f14-b302-90cde4f07b9d/university_of_iowa_cambus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0391aa00-9356-4e6a-b141-166ae34b0e83/vogaguruguxi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ae22d8ee-e7c8-4340-9ba5-f06a52cbfba1/56326402700.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/71ba2555-4b5f-4f71-8438-17d08f243ec5/4068596815.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/faf1f50a-c51e-436c-82b9-4e188c6d416b/53233431628.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c86406f6-8535-4248-8985-09445dd955df/xitedubadugipizepipekoxa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8f7fbdd7-750f-4614-b733-3821198c0b3a/87713594098.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/mudatagiw.pdfIn PDF document text
    • https://s3.amazonaws.com/babuxufarizuxur/48898081377.pdfIn PDF document text
    • https://s3.amazonaws.com/tetazino/canon_in_d_major_easy_piano.pdfIn PDF document text
    • https://s3.amazonaws.com/suximawo/49779034088.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 extracted file (font_00_sfnt_off00007f60.bin)

Related samples 8

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_off00007f60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F60 5092 bytes
SHA-256: 3870cfc7bce5d0176d39eb35d33bca689c15f975994a14b66bfa87feb8264c7d
font_01_sfnt_off000090cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90CF 10544 bytes
SHA-256: 6341d9d7d83a6c0ece9014bef52af57e5ad783a825e723b38276e7818847aaca

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