Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d44216f0b9d9dae…

MALICIOUS

PDF

72.1 KB Created: 2021-03-01 00:30:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: e27770f74538c9204d08015cd3d5c7c7 SHA-1: 9366596792ec44497f87f1dd95b15e32f50944d2 SHA-256: 7d44216f0b9d9dae940ba832bf8d3a1c48578c3fe6f1b9450ce3112e47e09f01
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://xajibur.ru/award?keyword=metal+gear+solid+1+pc+cheats PDF link annotation
    • http://idslim-italia.site/bio_data_sample_format_for_marriagem0isv.pdfIn PDF document text
    • https://cdn.sqhk.co/motulobugaji/fFnPggy/vowezesawusogoxapolesara.pdfIn PDF document text
    • https://cdn.sqhk.co/porosobof/niB1hhE/death_moto_bike_race_motorcycle_racing_games.pdfIn PDF document text
    • https://cdn.sqhk.co/doxowite/gdegfge/darup.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490529/normal_600bfe1cc4917.pdfIn PDF document text
    • https://cdn.sqhk.co/winogolelog/bhgjgd2/spartan_firefight_hack_apk_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/motulobugaji/QQicibM/dungeon_keeper_mobile_guide.pdfIn PDF document text
    • https://cdn.sqhk.co/durotula/ahjjjg2/weekend_at_bernies_2_meme.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/rubidokezive/wezizogexagarugeb.pdfIn PDF document text
    • http://zitadufafasid.onlinewebshop.net/zoxevuxirulijezema.pdfIn PDF document text
    • https://s3.amazonaws.com/genedonapubefe/58679195745.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_off0000dd9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD9C 5392 bytes
SHA-256: ec83f24f37775541e9df98cec44b0f1f6fb2e8cd59abfce17d941f9dab485d56
font_01_sfnt_off0000effd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFFD 10568 bytes
SHA-256: 06e5deb2407f8d9e6048772a504bd43abfddcc9339abc19bb3a44755cb45f217

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