Malicious PDF — malware analysis report

Static analysis result for SHA-256 da3daafae000f11d…

MALICIOUS

PDF

77.6 KB Created: 2021-03-01 21:22:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: a0ee784657f2de4eaac72fc60a6f047c SHA-1: 51f294ad7096faf8a31899d377e39a3f621cde83 SHA-256: da3daafae000f11da9192ecf4300fd875a7238f9eca2cc30322af73472487bb3
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware delivery. The ClamAV detection and ML classifier strongly indicate malicious intent. The document body, though heavily obfuscated, suggests a lure related to 'Les miserables musical poster' to entice clicks on the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://fokemale.ru/award?keyword=les+miserables+musical+poster PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4409801/normal_6025c65c8986a.pdfIn PDF document text
    • https://cdn.sqhk.co/fiwujumejuf/vvie92L/marketplace_foods_minot_nd_north_hill.pdfIn PDF document text
    • http://bagomebefekixob.getenjoyment.net/81570305563.pdfIn PDF document text
    • http://navevukosuso.mypressonline.com/the_shining_twins_now_meme.pdfIn PDF document text
    • http://suzofovolavuk.scienceontheweb.net/sony_dsc_rx100_ii_manual.pdfIn PDF document text
    • http://penageli.getenjoyment.net/mozujulafodonibikaz.pdfIn PDF document text
    • http://rubewox.sportsontheweb.net/bajikatunosetizipajo.pdfIn PDF document text
    • http://lixodamevurobar.mygamesonline.org/94026555169.pdfIn PDF document text
    • https://cdn.sqhk.co/dutudovajud/r8nUTif/digestive_enzymes_benefits_bodybuilding.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://josetevuj.epizy.com/marine_corps_boot_camp_training.pdfIn PDF document text
    • https://s3.amazonaws.com/kibavutibeved/92966286289.pdfIn PDF document text
    • https://s3.amazonaws.com/levovod/simaxinafowomavola.pdfIn PDF document text
    • http://zubiluwetij.myartsonline.com/lufarugavufifamidonufoma.pdfIn PDF document text
    • http://pidosowot.epizy.com/total_coliform_bacteria_definition.pdfIn PDF document text
    • http://dowafirowelumex.atwebpages.com/57270068720.pdfIn PDF document text
    • https://s3.amazonaws.com/xilasisefi/fomojupajizozimezotusawu.pdfIn PDF document text
    • http://desovizipelo.onlinewebshop.net/zofukinuvajizoxesaku.pdfIn PDF document text
    • https://s3.amazonaws.com/rubidokezive/js_date_output_format.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d51f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD51F 2960 bytes
SHA-256: 3c6502e04658d985b37ed967139d4b1bb7136c1c8ff06868e6b64c17630b7d50
font_01_sfnt_off0000dfa2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFA2 4936 bytes
SHA-256: a449434b1e2b45d44bbcfcad673845fd77e054909b9c2335cdf93890fd211b8a
font_02_sfnt_off0000f060.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF060 13360 bytes
SHA-256: 9bfe8f75c5b92c59d6aba55c828847472121f2469074d6e318f90de2679187f2
font_03_sfnt_off00011a97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A97 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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