Malicious PDF — malware analysis report

Static analysis result for SHA-256 2925e833f5a6b1af…

MALICIOUS

PDF

70.5 KB Created: 2021-02-15 01:45:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: ff7267a36f657c9146b5f925eca54122 SHA-1: 16b185548dadd5ef5eb7fa4b7192c6c7c17cde93 SHA-256: 2925e833f5a6b1af0cc82d1aab04600ab373dd4acff2a79f87f8df97d18da376
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://baarspo.ru/wix?keyword=ryan+sod+cutter+manual PDF link annotation
    • http://heleogose.online/myth_of_sword_eng_subevqxc.pdfIn PDF document text
    • https://nomuwasu.weebly.com/uploads/1/3/3/9/133997615/xosobiwebol-jesabar-wokugamizu-kawoguzeker.pdfIn PDF document text
    • http://com-copyrighit.com/cdc_vaccine_record_formt44h4.pdfIn PDF document text
    • http://thesimplycompleteseries.com/fox_reporter_aishah_hasnie9mgb3.pdfIn PDF document text
    • https://nofawubepugo.weebly.com/uploads/1/3/4/3/134373843/b9ecf281b.pdfIn PDF document text
    • https://bewosugug.weebly.com/uploads/1/3/0/8/130814774/2845196.pdfIn PDF document text
    • http://kamini33.ru/cavalcadepublishing_com_balancing_chsj0u5.pdfIn PDF document text
    • https://sefujokugitexas.weebly.com/uploads/1/3/1/4/131408298/2513386.pdfIn PDF document text
    • http://brettlockhart.com/67625149881smyvn.pdfIn PDF document text
    • https://cdn.sqhk.co/depivuni/jhbQ30p/daduzopisekomemud.pdfIn PDF document text
    • https://diwowure.weebly.com/uploads/1/3/4/5/134592565/2353942.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/kovibu/22858178142.pdfIn PDF document text
    • https://s3.amazonaws.com/xufoxorog/cyberflix_tv_apkpure.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c34d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC34D 5196 bytes
SHA-256: 7e1c5922a0eb119cd6ec21fecd7d185277ebf194bcb8dddb9acb84adddcc3cd9
font_01_sfnt_off0000d4eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4EB 10244 bytes
SHA-256: 5825b407268f7b34814891649923983c2e60b21e15d85132e9bab31a662ea334
font_02_sfnt_off0000f812.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF812 16092 bytes
SHA-256: e9fe716c2abc985b12a899a49d5539e4e8be1b56d50c083b30290d85a2a7c848