Malicious PDF — malware analysis report

Static analysis result for SHA-256 11ab2b821a0e6961…

MALICIOUS

PDF

71.1 KB Created: 2021-02-28 16:49:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e2cf271d18f4e852bc60449974a1130f SHA-1: e3ab971e99f8b3c4606a19a93763c8651b4953ec SHA-256: 11ab2b821a0e6961f2e1f4466f143ab24a654785c048739b1992c027f1c1581b
136 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
  • 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://jottigo.ru/wb?keyword=how%20to%20read%20coop%20financials PDF link annotation
    • http://visiblawty.com/careless_whisper_tenor_sax_sheet_music_freejs84n.pdfIn PDF document text
    • http://verenica.net/what_does_evolutionary_developmental_psychology_focusbdq47.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391636/normal_5ffec1b8e9107.pdfIn PDF document text
    • http://siputofivimib.iblogger.org/xezemejezalasogatogogu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476750/normal_6032da8b2e47a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447271/normal_5ff19c2cb4c4d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454982/normal_5ff9f0a05aff1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455196/normal_60087dac52f4d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482671/normal_6001c94070fc9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370737/normal_600ea3fb5ea53.pdfIn PDF document text
    • http://discount50it.pro/allegiant_book_parent_reviewudnt9.pdfIn PDF document text
    • http://morikulifitoj.22web.org/fezofafejebapare.pdfIn PDF document text
    • http://indohealth365.online/36458359973mj5up.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://piwuzodoxomox.epizy.com/vabif.pdfIn PDF document text
    • http://lavuradisaxel.epizy.com/72631770880.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_off0000d98e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD98E 5200 bytes
SHA-256: 46951db90e6e312eb9400f65863ccb189421742060c22bde1ecd65a4cfca5c33
font_01_sfnt_off0000eb63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB63 10728 bytes
SHA-256: e3e2c3b197a0bb519feeb3b4a21056289fd5b1122a1c4f1fd6d4503bb6ed716a