Malicious PDF — malware analysis report

Static analysis result for SHA-256 145677bcb7e3ee60…

MALICIOUS

PDF

65.2 KB Created: 2020-12-09 01:16:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 5cc7ea23dde266990cb8da9d76c730e8 SHA-1: 4be093bb0f074b67eef0d78d5c26d898e7702ba1 SHA-256: 145677bcb7e3ee60d3d6d1785f0c55bd996271424768af82da79e22e1b7aad09
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://trafffe.ru/square?utm_term=can+you+cross+stitch+on+regular+fabric PDF link annotation
    • https://kesevaze.weebly.com/uploads/1/3/1/3/131383297/kujeluso-rujuporixotem-puzadabe.pdfIn PDF document text
    • https://fipoxojumudex.weebly.com/uploads/1/3/4/6/134649093/zaginit-xikexigesirini.pdfIn PDF document text
    • https://ruwuragawani.weebly.com/uploads/1/3/4/3/134383911/ff81f69.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/887a0bc2-81fa-4d70-a49a-cddf37d4d97d/41391236778.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8edc54c-490f-48d2-938f-8c9a9bff5a04/samsung_j7_phone_case.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/def2972e-8a0d-4797-9c27-c246d7914ce8/vitijivaguniv.pdfIn PDF document text
    • https://s3.amazonaws.com/pajukovuxetu/ein_application_form_ss-_4.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4ffd688c99b6d37c18e02/t/5fcffc67a21aaa12ce8955ae/1607466087776/galaxy_wallpaper_for_android_mobile.pdfIn PDF document text
    • https://s3.amazonaws.com/wunupalezozerud/32144031312.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/56408120-ceba-4955-91ba-30ad10e7d4e0/rojexabiremowosizebivinu.pdfIn PDF document text
    • https://s3.amazonaws.com/kezemiradigu/natalia_boa_vista_killed_off.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1a060847-8fa1-4445-ac52-507bde114349/telozuvixujezoza.pdfIn PDF document text
    • https://s3.amazonaws.com/buxoparadazegu/ntpc_reasoning_book_in_hindi.pdfIn PDF document text
    • https://s3.amazonaws.com/nokiva/6964183154.pdfIn PDF document text
    • https://s3.amazonaws.com/rowubunak/topigeduwutigakudo.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_off0000c163.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC163 5288 bytes
SHA-256: 4495b3330531be93e55ec6916c932d68aacb8b5de8373f37c7b7378b4951a199
font_01_sfnt_off0000d363.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD363 10976 bytes
SHA-256: 434ab8f6f7d0154d5a4c72cf3287b95447607007954ed9979bff793b3b3712b6

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