Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed30bcb1a9bfcc4e…

MALICIOUS

PDF

71.5 KB Created: 2021-03-22 23:51:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 6dd29dafba8559f42a178d3fa273b37c SHA-1: a70f03236aaafea790a5494ddd954830c49048e6 SHA-256: ed30bcb1a9bfcc4e3c33472a52ddc5f2585b865f8119e2a959addb6af0269dd8
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded URL that redirects to a phishing site, indicated by the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic and the 'ML_NYX_PDF_MALICIOUS' and 'CLAMAV_DETECTION' firings. The document body, though heavily obfuscated, suggests a lure related to 'Agnello di dio testo pdf'. The primary IOC is the malicious URL used for the phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://jacksth.ru/award?keyword=agnello+di+dio+testo+pdf PDF link annotation
    • http://somixewavado.sportsontheweb.net/50009697081.pdfIn PDF document text
    • http://wedipum.mygamesonline.org/hp_50g_advanced_users_reference_manual_edition_2.pdfIn PDF document text
    • http://chebsvet.ru/excel_guitar_tablature_templatevbv9z.pdfIn PDF document text
    • http://microbladingeyebrowsdallastx.com/gospel_in_the_stars_bookbclgg.pdfIn PDF document text
    • http://reduslim-officialsite.site/dan_the_man_game_unlimited_money_apk3xori.pdfIn PDF document text
    • http://esportzmlevent.com/86117626005p734s.pdfIn PDF document text
    • https://cdn.sqhk.co/lepavenujal/0hehaRd/51653633921.pdfIn PDF document text
    • https://cdn.sqhk.co/bulunazi/kifjghe/14878608978.pdfIn PDF document text
    • http://kolekewoni.mywebcommunity.org/volume_and_surface_area_of_3d_shapes.pdfIn PDF document text
    • http://umkatrade.ru/what_can_you_cook_on_the_big_green_egg1xd3j.pdfIn PDF document text
    • http://stavki-na-sport.site/which_uppababy_stroller_is_the_best67f8l.pdfIn PDF document text
    • http://topstop.site/81135113437j47o8.pdfIn PDF document text
    • http://ulekschool.online/3d_max_for_macbook_freecw58i.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vimitafukufes.rf.gd/40950289242.pdfIn PDF document text
    • http://vakizonozajaxe.onlinewebshop.net/small_editor.pdfIn PDF document text
    • http://tizedukef.epizy.com/jackbox_party_pack_3_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4908fd02-f90c-4c11-82ea-f0535566675b/bamepe.pdfIn PDF document text
    • http://memuwalarike.rf.gd/bosch_washing_machine_series_4_manual.pdfIn PDF document text
    • http://vazorilumi.epizy.com/common_english_idioms_list.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/426d113c-ca36-4518-976c-d6fb167e705a/44444764551.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/80de600f-9a4f-4f2f-95f7-26ab18d3b8a4/datisudunemuzajisebozo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/60e1ba83-e1d0-4104-8616-ece2e6e35703/pi_to_pi_star_transition_examples.pdfIn PDF document text
    • http://jagutebi.epizy.com/sajezabufewogewulidaton.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_off0000da05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA05 4892 bytes
SHA-256: a6f672c9bb0de302e9febae894bb0d58c2617b0885bef06db42430e2f4da3944
font_01_sfnt_off0000eace.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEACE 11144 bytes
SHA-256: 6af6ff97e8e082784a93a99d841a39d29bb0954866dd7bda5370143ba9deb78d

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