Malicious PDF — malware analysis report

Static analysis result for SHA-256 84c72ff8a67544b2…

MALICIOUS

PDF

79.1 KB Created: 2021-03-06 03:14:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: f41938149dcba6b958f264d7c352d18f SHA-1: cb4f1f367e6a9fb0717836ae0455f47ac647de27 SHA-256: 84c72ff8a67544b22d3989749dcb94dfe35da972eda44df3585216b157468c09
96 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains an embedded URL that, when visited, likely leads to a phishing or malware download page. The presence of embedded URLs and the overall classification strongly suggest a phishing attack vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://botokaw.ru/strik?utm_term=search+history+google+account PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4401525/normal_5fd34fb5e6d88.pdfIn PDF document text
    • http://fobexugelego.getenjoyment.net/2005_dodge_ram_1500_5.7_hemi_engine_diagram.pdfIn PDF document text
    • http://lojapidabud.mypressonline.com/how_do_i_find_my_hotpoint_oven_model_number.pdfIn PDF document text
    • http://rameautbxy.space/rebopevu3mqj.pdfIn PDF document text
    • http://dunodipike.sportsontheweb.net/69164468907.pdfIn PDF document text
    • http://catsism.com/grab_top_up_storevsxhz.pdfIn PDF document text
    • http://xofofumireke.mypressonline.com/77703715998.pdfIn PDF document text
    • http://fopokigife.mywebcommunity.org/45413848420.pdfIn PDF document text
    • http://vuwiwetidajin.mywebcommunity.org/ziwojoposonoduzeneximes.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391620/normal_6005095d8f07e.pdfIn PDF document text
    • http://silewugebed.scienceontheweb.net/weber_genesis_ii_e-310_grill_grates.pdfIn PDF document text
    • http://rabota-plus.club/printable_rebus_puzzles_with_answers_for_adultsy7t33.pdfIn PDF document text
    • http://toxipoxekej.medianewsonline.com/14625999526.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/womirofop/weraloguve.pdfIn PDF document text
    • https://s3.amazonaws.com/gewuwasi/battery_percentage_pro_version_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dc94bbfc-d191-4bd0-88ab-ba12b6acf4eb/91314639760.pdfIn PDF document text
    • https://s3.amazonaws.com/tobojelusiwi/90631343266.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/97ba3cc0-6d32-4378-8ff5-5ec94c5c26ca/how_to_get_the_god_mask_in_revelations.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/95b0ba71-cc78-4176-bcd5-9f717df2a55e/40502115416.pdfIn PDF document text
    • https://s3.amazonaws.com/wefemabeni/7494122364.pdfIn PDF document text
    • http://raxajabidadida.onlinewebshop.net/fiio_x1_gen_2_review.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_off0000f8d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8D9 5268 bytes
SHA-256: 9808229faa4e46605c891e1f896ce1734012762c6f65c434c70656c667459d2f
font_01_sfnt_off00010abf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10ABF 10668 bytes
SHA-256: 56b3cfd3f2aee76e682c25727c325f18bd32f48816b0709fdf94ce7c740f7acc

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