Malicious PDF — malware analysis report

Static analysis result for SHA-256 0aa0a0e3ec7e394e…

MALICIOUS

PDF

37.5 KB Created: 2020-10-15 05:18:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: c2e7d956935982781090cea9e9afda6f SHA-1: f9499ea88783e3a4544f2ad18230ea00f4c603b4 SHA-256: 0aa0a0e3ec7e394ea739a19da8852125d9360659570cb851c5fea21b526b8e66
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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.
  • 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/123?keyword=land+law+revision+notes+pdf In PDF document text
    • https://kidunaxu.weebly.com/uploads/1/3/1/4/131437100/dd229e62.pdfIn PDF document text
    • https://nesavelo.weebly.com/uploads/1/3/2/3/132303009/9443059.pdfIn PDF document text
    • https://boguvetasitob.weebly.com/uploads/1/3/1/3/131380850/kebos.pdfIn PDF document text
    • https://bibeliki.weebly.com/uploads/1/3/0/7/130738572/lebof-jekifugivavane.pdfIn PDF document text
    • https://gazesomudari.weebly.com/uploads/1/3/1/0/131070071/ramupira.pdfIn PDF document text
    • https://site-1043405.mozfiles.com/files/1043405/62884847909.pdfIn PDF document text
    • https://site-1038715.mozfiles.com/files/1038715/gitivuwawif.pdfIn PDF document text
    • https://site-1041181.mozfiles.com/files/1041181/7038659979.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/76baccbb-d01c-47db-92ea-8b1ac42a623a/nezuforeseten.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7808/1955/files/togame_long_hair.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/5654/3944/files/ssc_chsl_2020_answer_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7292/9435/files/xigurebanabudinekanir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0476/6688/8870/files/iphone_x_sprint_trade_in.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9980/8149/files/21882734058.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4452/8550/files/45592196800.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6719/5040/files/zroot_apk_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/9348/6487/files/64577523897.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/9845/6469/files/35807607100.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0492/3778/6780/files/valentines_day_cards_meme_the_office.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/3659/3304/files/juxunerikumilimi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/9622/3133/files/97909128007.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005515.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5515 5128 bytes
SHA-256: 6d7d9ea0e5317128412b534470920bbf5a455e607d057fd70af447e864ffbd65
font_01_sfnt_off000066b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66B3 10028 bytes
SHA-256: 5ae491a7c5419b325372b8c6a272149416170abbf0b63cc79cecb83a1c99d753

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