Malicious PDF — malware analysis report

Static analysis result for SHA-256 11e8d93e52a02ea7…

MALICIOUS

PDF

39.2 KB Created: 2020-10-07 15:59:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 232b559ddcadcdfe0626714f31ac2d62 SHA-1: 5570242e1d826cb458a525fa04d3f31b116d73ea SHA-256: 11e8d93e52a02ea74e2a1eac0eff40a9fe2b7c1e0eb45dd97c08f0c5df9561df
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/pify?keyword=boy+in+the+striped+pajamas+quiz+pdf In PDF document text
    • http://jutef.euroforestireland.ie/uploads/1/3/0/7/130775363/6f4d61ab37f9.pdfIn PDF document text
    • http://files.joxytales.com/uploads/1/3/1/4/131411596/095c694f69cb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/f33f7cb8-996d-4641-ad19-a9a58e878e66/sawunitor.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/82962908-3b6f-4481-8cf0-4c128c6cf8c5/xuxox.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e521810f-2d57-40de-97fb-06dacfa05a87/56709156292.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/546d45ee-fe14-4c96-94d4-5f673c354ae3/mizux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1e10b93b-b9e4-4eec-9bed-b02ccebc53ee/tosete.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/3066/1278/files/may_the_father_of_understanding_guide_us_in_latin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6232/8472/files/fevoxakenanibigabugo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/0933/8275/files/pafimagigegojipovafumoje.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8dbcb294-c2b4-4468-82d3-cd0c43adba52/sarazugotalemono.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8713128-2e8e-4cc0-8e6f-1d3686ebeb54/27052165107.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 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004db5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DB5 5532 bytes
SHA-256: 8678fa5cedf96351f2d929ebb3ed977c48773d981f1c5f69e983ae6b0455356c
font_01_sfnt_off00006066.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6066 9780 bytes
SHA-256: 10d494601eeb4e80baa6fd6617e36932de2a54a1b15c61cf417db9346befdfbd
font_02_sfnt_off000081d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81D6 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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