Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c65b36aef246cb5…

MALICIOUS

PDF

74.8 KB Created: 2021-03-08 02:40:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: 05b89d5516f03cc1fb9e0610396b4fd0 SHA-1: 856e463d405138554bb999484a9dd33b30dcd6ce SHA-256: 7c65b36aef246cb5e02948a37b3af1b2ae8158f9758160d97ff098ffbb1c1996
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL. The ML classifier and ClamAV detection strongly indicate maliciousness. The embedded URL points to a domain that appears to be part of a phishing or malware distribution scheme, likely attempting to trick users into downloading further malicious content or providing sensitive information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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=wireless%20xbox%20360%20controller%20pc%20reddit PDF link annotation
    • https://cdn.sqhk.co/rotonoba/OjejckY/zifezomixajajodu.pdfIn PDF document text
    • https://cdn.sqhk.co/rutunidosaw/3ig6ihd/dozadidujufe.pdfIn PDF document text
    • https://cdn.sqhk.co/sexipemajim/5ieWiet/ratof.pdfIn PDF document text
    • http://garobunatuxovi.scienceontheweb.net/dragon_age_origins_gifts_silver_bracelet.pdfIn PDF document text
    • https://cdn.sqhk.co/jaziwuke/dibhjg1/business_analysis_definition.pdfIn PDF document text
    • http://pixidilivutep.medianewsonline.com/the_art_of_blending_spices.pdfIn PDF document text
    • https://cdn.sqhk.co/kapipota/gTaghd5/aarp_games_word_scramble.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467975/normal_601437bc2731f.pdfIn PDF document text
    • http://rijigikesezaga.mypressonline.com/percy_jackson_and_the_lightning_thief_full_movie_online_with_english_subtitles.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501645/normal_60415db7b7fbb.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/dobesogum/96390370799.pdfIn PDF document text
    • https://s3.amazonaws.com/kubafezin/faxekitonupafutuforuguji.pdfIn PDF document text
    • http://texavit.epizy.com/bhola_hai_bhandari_ringtone_pagalworld._com.pdfIn PDF document text
    • http://megigezorozo.atwebpages.com/rabedudebojoxikix.pdfIn PDF document text
    • http://goguvero.epizy.com/46799356095.pdfIn PDF document text
    • https://s3.amazonaws.com/mogedozara/acneiform_rash_symptoms.pdfIn PDF document text
    • http://kesupipipiret.onlinewebshop.net/brother_vx-1120_bobbin_winder.pdfIn PDF document text
    • https://s3.amazonaws.com/wozowuledij/jee_main_mathematics_books.pdfIn PDF document text
    • https://s3.amazonaws.com/juzewojavomofew/58604997360.pdfIn PDF document text
    • https://s3.amazonaws.com/patilawasu/juvumeli.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_off0000e5d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5D5 5536 bytes
SHA-256: baf0b7848e92671680f207bfc29fc53f4e0e58ffb5f53559b4a62c9b5be2eabd
font_01_sfnt_off0000f8bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8BF 10864 bytes
SHA-256: 3c44b7688b7ff0dc8903143f735440101baf9c2f9359371cba042637725aa73c

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