Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d1777736fff770b…

MALICIOUS

PDF

62.6 KB Created: 2020-11-06 14:42:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 7469ed3ecbeb914b02295011c66ec3bc SHA-1: 84d1b6eb91c6fa74098817e3a2c136793102b63e SHA-256: 6d1777736fff770b92576fab8304c4370a685eae121e21731026c155c397e38a
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafftec.ru/123?keyword=install+showbox+apk PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4381340/normal_5f906b8a4e4c1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373261/normal_5f8a135fd96e4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c5a77a7-e06f-4667-8d2c-370a618ea77b/guerra_mundial_z_2_pelicula_completa_en_espaol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/921e0596-1802-4a30-a402-50f04364849b/7278593969.pdfIn PDF document text
    • https://s3.amazonaws.com/juvuraguvutoxif/71136678102.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a01fba48-933d-4fbf-83ec-b89e007051df/bruce_lee_artist_of_life.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/70c45323-edcf-4a73-b0a4-3ae51fee32b3/44562802223.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9cb52895-86eb-40ae-b6db-38768143688b/bodularawipabudomexamamer.pdfIn PDF document text
    • https://s3.amazonaws.com/salade/42611467841.pdfIn PDF document text
    • https://s3.amazonaws.com/dumupa/56943371034.pdfIn PDF document text
    • https://s3.amazonaws.com/sikuva/poverty_alleviation_essay.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fe080886-ff33-4bd9-bd75-05bcc1d65e6d/smok_t_priv_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d785a6cb-9ba2-47ba-a657-4b9197cec6e9/hill_climb_racing_2_hacks_2019.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b734.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB734 5112 bytes
SHA-256: 0ca320ac214b9ded95be857f1b52f23a39a380454872cdf90bbad49a5867263c
font_01_sfnt_off0000c8a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8A4 10844 bytes
SHA-256: 62924a200ad9220d3285e7f046d0cb31663108646a81feca6cadc94f802dbd04