Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee953b9b362b9068…

MALICIOUS

PDF

47.7 KB Created: 2020-10-28 03:21:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: 95e83d7b861a503815db1c0108c202f4 SHA-1: b60195ef9a9c77d3db5c2934a0959c75bc64a975 SHA-256: ee953b9b362b9068e50946f57ece23c263c8bb3c18e2e5101e1bb5bab4e996af
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://ggtraff.ru/strik?keyword=iesna+lighting+handbook+10th+edition+pdf+free+download In PDF document text
    • https://gupaxapofigovi.weebly.com/uploads/1/3/4/3/134356466/xowutekogosimawosa.pdfIn PDF document text
    • https://junoxavod.weebly.com/uploads/1/3/1/3/131384771/zalamibuxu_lejolex_jewov_fajak.pdfIn PDF document text
    • https://pudibodug.weebly.com/uploads/1/3/4/4/134464821/730f26c81416.pdfIn PDF document text
    • https://tenabawik.weebly.com/uploads/1/3/2/7/132710661/459ca.pdfIn PDF document text
    • https://wesujugureju.weebly.com/uploads/1/3/0/8/130874517/5389017.pdfIn PDF document text
    • https://meporolokiso.weebly.com/uploads/1/3/2/6/132681401/sekuxugikibebu_nudofigewisamew_jamedidow_temofa.pdfIn PDF document text
    • https://botubadixebom.weebly.com/uploads/1/3/1/4/131407995/4622f989.pdfIn PDF document text
    • https://mojivimimujovo.weebly.com/uploads/1/3/0/8/130874437/44d87feaf8ee.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/ebfc561a-e179-4dc4-8c5d-2d6e3c751958/rotakivafifovamumefunajis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/865bcce3-efbd-4525-8c27-f70f3db1dfb8/75049210802.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ebaa9808-d9f8-4e65-b723-e7f4972bf004/exercices_communication_non_violente.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6e46ac21-d3b9-4d66-8072-c4a132da92de/clasificacion_de_kennedy_y_subdivisiones.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ebbe7908-ff2b-4dc0-b432-f7ab486ca82b/gorujezo.pdfIn PDF document text
    • https://s3.amazonaws.com/dazemi/64157660996.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/vizibelov.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/zuzof.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxime/concave_and_convex_lens.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files2/6th_pay_commission_wb.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/cinematography_books.pdfIn PDF document text
    • https://s3.amazonaws.com/bawalidamovidud/allianz_se_annual_report_2017.pdfIn PDF document text
    • https://s3.amazonaws.com/nawuvud/22030097521.pdfIn PDF document text
    • https://s3.amazonaws.com/jewizopukuni/95953195268.pdfIn PDF document text
    • https://s3.amazonaws.com/jedobufudajewu/79606520620.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_off00007979.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7979 5732 bytes
SHA-256: 82c1a908d58a2ea71cc732a5fa27fc82f72a75cdc774302ccbc7673375fe4087
font_01_sfnt_off00008cff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CFF 10580 bytes
SHA-256: c8fb33058491c6fe8e4684d9d47e7c070886a576782fc13aa475a569b6c763e2

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