Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdf40f4be2e7e8c7…

MALICIOUS

PDF

71.2 KB Created: 2021-02-27 11:14:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 18c098061c8eefd94d075b434e7f3181 SHA-1: 88f5f2d6c7dad66e5e3ba3c8ad4457984340882a SHA-256: fdf40f4be2e7e8c7645946515a021ad9243291e7c32cf221a3dd51bce25134f8
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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 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://golowaki.ru/123?utm_term=the+elite+selection+series+summary PDF link annotation
    • https://cdn.sqhk.co/numanazolov/QCgiEhe/71772908729.pdfIn PDF document text
    • http://modalidetefid.iblogger.org/how_to_address_a_letter_to_a_board_of_commissioners.pdfIn PDF document text
    • https://cdn.sqhk.co/zimopaji/av1vylU/30458849351.pdfIn PDF document text
    • http://loginenujivaj.iblogger.org/79466167649.pdfIn PDF document text
    • https://cdn.sqhk.co/waximanodif/bzLYicD/86580897095.pdfIn PDF document text
    • http://pufivuziviv.mypressonline.com/13671074501.pdfIn PDF document text
    • http://wikuseweluwi.iblogger.org/tobemewaxupukosez.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://podapuleleg.epizy.com/74597949624.pdfIn PDF document text
    • http://tikisomoxo.epizy.com/9753567946.pdfIn PDF document text
    • http://tavoxelelenasi.onlinewebshop.net/51993994254.pdfIn PDF document text
    • http://vekifaxofezawe.epizy.com/adobe_after_effects_text_animation_presets.pdfIn PDF document text
    • http://jamosafiseb.rf.gd/menafox.pdfIn PDF document text
    • http://fudewalazakukug.epizy.com/petogubuvu.pdfIn PDF document text
    • http://zagofij.onlinewebshop.net/the_merchant_of_venice_bassanio_character_analysis.pdfIn PDF document text
    • http://xuvekixofeku.onlinewebshop.net/why_does_songs_disappear_from_spotify.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_off0000dcd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCD9 5092 bytes
SHA-256: 4ac25049861eaa605fd3fb3a4ff3774ab0e9bb95d7878d6d89a9ce8160f0ad89
font_01_sfnt_off0000ee00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE00 9980 bytes
SHA-256: 79e3e35f392d3615e0096f33a3f49190973f3b8c3161ba6e8068bafc8896e542