Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6ec551b303e44c2…

MALICIOUS

PDF

73.9 KB Created: 2021-02-22 13:54:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 0e47ca0d51d5a0c97d10fd4c6d133c6e SHA-1: dfd4f36b524fe8f8a29a082380d5e7a58d9a2c61 SHA-256: e6ec551b303e44c2276b4f30ed0cc4a0c509af7edcdf309da7899aa1de20bcbb
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://druttle.ru/wix?keyword=to+kill+a+mockingbird+chapter+18+literary+devices PDF link annotation
    • https://tuzunogosur.weebly.com/uploads/1/3/0/8/130815213/09976.pdfIn PDF document text
    • http://tublitalia.fun/listening_test_3_arranging_storage_answersgxt41.pdfIn PDF document text
    • http://profapp.pro/38080552444rkwb8.pdfIn PDF document text
    • https://ruzutemeba.weebly.com/uploads/1/3/2/6/132681300/b37cd863db.pdfIn PDF document text
    • https://s3.amazonaws.com/gitipelut/intrapartum_fetal_monitoring_rcog_guidelines.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417213/normal_5fcae5b4d8dd3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452834/normal_5fcd1ff1a6988.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447884/normal_5fc882ce4aef2.pdfIn PDF document text
    • https://s3.amazonaws.com/gomakobez/62127643977.pdfIn PDF document text
    • http://betmoy57.com/lawalarusunkv3s.pdfIn PDF document text
    • https://s3.amazonaws.com/tumasun/adobe_after_effects_animation.pdfIn PDF document text
    • https://s3.amazonaws.com/towakog/4901474787.pdfIn PDF document text
    • https://s3.amazonaws.com/vitelitubovuluj/86027432766.pdfIn PDF document text
    • https://s3.amazonaws.com/marimejerebo/tozatosixodabusumotibifel.pdfIn PDF document text
    • https://s3.amazonaws.com/joterige/free_30th_birthday_invitation_templates_printable.pdfIn PDF document text
    • http://depupejaxidolip.22web.org/utorrent_free_websites.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vedezaduxi.epizy.com/antivirus_android_apps_free.pdfIn PDF document text
    • http://robogotut.epizy.com/suriketolirononotofe.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 5

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_off0000e33c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE33C 6048 bytes
SHA-256: 62a1e07682705a20be9e14c5047e328d4b68ab7830ac4c3737d0f9d9f0e70b5c
font_01_sfnt_off0000f7b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7B1 10072 bytes
SHA-256: 5803c2e42acc75c45b8c48e78509b2edfc5f4ff120f860a98e26e02342790e74

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