Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3f9ee8af4b69464…

MALICIOUS

PDF

75.7 KB Created: 2021-02-14 23:15:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 04796c772902e591f9de6fd3a56591d3 SHA-1: a85d632cb6cc1731357cd17b55205d6f4bfd1288 SHA-256: a3f9ee8af4b69464c957ab6c7f259d25c432b202d53c716d93568e2a69860e21
256 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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://maypoin.ru/wix?keyword=what+is+anonymity+in+network+security PDF link annotation
    • https://vagewojevibo.weebly.com/uploads/1/3/4/8/134873572/gojawo-nowazinemulov-wodizugapi-vababon.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410727/normal_6014590ded5ac.pdfIn PDF document text
    • http://good-production20.site/horror_story_in_bengali_free_downloadlf3yf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421957/normal_6015e36e9e8f8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391024/normal_60028a55cd0aa.pdfIn PDF document text
    • https://sajosapisede.weebly.com/uploads/1/3/4/3/134344890/wozajesizow_xojapoxi.pdfIn PDF document text
    • http://zespodsvetkoy.site/4128915094729gsd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381081/normal_601dcbcd65857.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413850/normal_5ff60827486c1.pdfIn PDF document text
    • https://minadefimufev.weebly.com/uploads/1/3/4/6/134635785/634665.pdfIn PDF document text
    • http://sfr-espace.best/curriculo_pronto_primeiro_empregouart1.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/pegozegi/7863978227.pdfIn PDF document text
    • https://s3.amazonaws.com/lebaxa/windows_xp_format_cd_si.pdfIn PDF document text
    • https://s3.amazonaws.com/tesotiwapax/american_bully_dog_breed_information.pdfIn PDF document text
    • https://s3.amazonaws.com/punurum/gisakawawexerizuwafop.pdfIn PDF document text
    • https://s3.amazonaws.com/betefowubevat/95472177019.pdfIn PDF document text
    • https://s3.amazonaws.com/fisulefajow/mendelian_genetics_worksheet_answers_key.pdfIn PDF document text
    • https://s3.amazonaws.com/voxulija/bhakti_ringtone_pagalworld.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_off0000ece1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECE1 5276 bytes
SHA-256: da9e6b6e567d3508f7264560e3a5d416dc200a309e8f3dd1b395b3e14a5866a0
font_01_sfnt_off0000fec2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEC2 10196 bytes
SHA-256: 99d5a94b6b7fce19032dfa2abf782117a248f175d55298e839bf5978002ed78b

Open this report in the interactive analyzer, or submit your own file for analysis.