Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe871be7046d6975…

MALICIOUS

PDF

37.9 KB Created: 2020-10-25 16:58:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-25
MD5: 93ce6a991e2d9219ac99a57f71cb567f SHA-1: d33f98567077051129965c13318d05268656b805 SHA-256: fe871be7046d6975b3808493304e51ee8e5c8e71dae4796a1d201542c9b162a9
202 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://ttraff.com/pify?keyword=malayala+manorama+calendar+2020+pdf+file In PDF document text
    • https://fitijozis.weebly.com/uploads/1/3/4/3/134372299/9f5b43.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/5ce1b7c1-08b5-4fed-b012-bdd46374c0bb/jovixas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/34053e4f-a3ad-4da1-8ed0-24389eedc498/77743769616.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/12a364c4-3e9f-4d29-a1c4-081824536b15/63488224700.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f62d4168-b8af-494a-8652-aba29f4c2068/lexuxowegidijazitori.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/357fd8a0-bb95-4ae0-8b52-5d56163afb1b/bezugaxajaka.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d48e9c92-6d4c-41e6-afdc-1a67e160c86a/mijilolufinusepavom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a11acac-3415-4161-a5d4-31480156f13a/bozulilobedojalituwoluwux.pdfIn PDF document text
    • https://s3.amazonaws.com/jenagubadopi/tuvubejozi.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/tetopobeve.pdfIn PDF document text
    • https://s3.amazonaws.com/jotizifime/dalixojipet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/212a0831-070a-4801-953a-2d486b4f0741/download_itunes_for_windows_without.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/28f7bf6f-5611-4ffb-8930-db7ca9adf9d2/39564746109.pdfIn PDF document text
    • https://s3.amazonaws.com/baxadelefofibuz/pavopovavirad.pdfIn PDF document text
    • https://s3.amazonaws.com/rerinago/pdf_to_word_converter_crack_download_free.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_off000054eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54EB 5504 bytes
SHA-256: b50dfe5e8fddc5db2e644ee1bb4a2d221cf393ccfb6f13cfe7af97b6edd67249
font_01_sfnt_off00006797.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6797 10320 bytes
SHA-256: ee1b616b2f7f8234d73655b2c629d1a85cdfff8e05461d1aaf0e671c2ac0609f

Open this report in the interactive analyzer, or submit your own file for analysis.