Malicious PDF — malware analysis report

Static analysis result for SHA-256 3823c201abdc859f…

MALICIOUS

PDF

66.8 KB Created: 2021-02-11 14:26:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 84a13ba8bc7754eee5ba5deee2ddffaf SHA-1: af883b777e921e7b4214999f64ff7a35c26946ed SHA-256: 3823c201abdc859fb67b81f8bc1dcef2b578bde834689c90ac96c304171a3a54
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://baarspo.ru/wix?keyword=triplett+model+310-c+manual PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4470980/normal_5ffe6bf6f02d3.pdfIn PDF document text
    • http://avbox.org/60280768128xfnhm.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379369/normal_600bf680b14cd.pdfIn PDF document text
    • https://tedumevoseviman.weebly.com/uploads/1/3/5/3/135311532/repavebunivuze.pdfIn PDF document text
    • https://jiwebatije.weebly.com/uploads/1/3/3/9/133997557/b716f.pdfIn PDF document text
    • https://cdn.sqhk.co/tarolaser/b4Whbhe/red_button_game_unblocked.pdfIn PDF document text
    • https://cdn.sqhk.co/jugemito/gggeaFr/consolidated_theatres_pearlridge_prices.pdfIn PDF document text
    • https://cdn.sqhk.co/nokulebepoba/hc1Chaq/best_horror_ringtones_2019.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://puzegekizizovin.epizy.com/17887232057.pdfIn PDF document text
    • http://gizadopozi.epizy.com/74199208194.pdfIn PDF document text
    • https://s3.amazonaws.com/wiremeresegikon/welep.pdfIn PDF document text
    • https://s3.amazonaws.com/nuvukivaxiren/nakometipinofurokekoduxe.pdfIn PDF document text
    • https://s3.amazonaws.com/xapota/fesamosejex.pdfIn PDF document text
    • http://bususetut.epizy.com/lafumebeb.pdfIn PDF document text
    • http://fabupumow.epizy.com/answer_complaint_document_speaks_for_itself.pdfIn PDF document text
    • https://s3.amazonaws.com/wujodibu/51671112399.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_off0000c940.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC940 5380 bytes
SHA-256: a07776037378e29392aff93793e81502ca800d8680bbd81a5f67fb36e36ae0af
font_01_sfnt_off0000db7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB7F 10172 bytes
SHA-256: 2c6c57d954e732fde4217f9fff91cdc6cd48dab002ed73c9758264b7973bff82