Malicious PDF — malware analysis report

Static analysis result for SHA-256 afca177e327a38f6…

MALICIOUS

PDF

75.5 KB Created: 2021-03-14 17:08:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e9ddb41909ab0f3d4e8a93f67c88e8c7 SHA-1: c3fe6cc4b2052e3a70ab3d1fb9c11f6648cc5716 SHA-256: afca177e327a38f6602dc78e014f8be2a5437aa7bd14d535aec2fa6044a553b7
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, with a high risk score. It contains an embedded URL pointing to a suspicious domain, likely intended to host a phishing page or download a second-stage payload. The document body, though partially corrupted, suggests a lure related to a calendar, which is a common tactic for phishing campaigns.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://soxebez.ru/strik?utm_term=calendario+mexico+2020+con+semanas
    • https://cdn.sqhk.co/logenuzupug/hCQgghj/emoney_advisor_client_portal.pdf
    • https://cdn.sqhk.co/nuzitomizaj/xjcyxXv/95702898833.pdf
    • http://jijuduli.mywebcommunity.org/90906284704.pdf
    • https://cdn.sqhk.co/gufojakig/eNhhxAE/97610954612.pdf
    • https://cdn.sqhk.co/duponetix/i6mkJ2U/lezujelezofa.pdf
    • http://winoxolupuvil.getenjoyment.net/what_are_two_examples_of_wastewater.pdf
    • https://cdn.sqhk.co/kafufojugure/dTgijjn/xejemufimuvovofujelomar.pdf
    • https://cdn.sqhk.co/podogule/gjhggiP/jaguzuxixagalozirixo.pdf
    • https://cdn.sqhk.co/fekebazi/h6jdQMF/sebadejimakanekaguzivafuv.pdf
    • http://kolekewoni.mywebcommunity.org/compound_interest_worksheet_gcse.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://bafovupopevepus.epizy.com/toyota_camry_se_2018_specs.pdf
    • https://uploads.strikinglycdn.com/files/e5959bce-52c7-4f32-8ba1-2af2164b01d5/jiwazogi.pdf
    • https://s3.amazonaws.com/poresi/4249346176.pdf
    • http://tiwatimab.atwebpages.com/bell_jar_book_quotes.pdf
    • https://s3.amazonaws.com/baritexovopa/battlefield_4_keygen.pdf
    • https://s3.amazonaws.com/povelenavuviw/what_do_you_study_to_be_a_real_estate_agent.pdf
    • https://s3.amazonaws.com/pipaneku/amma_amma_song_free_starmusiq.pdf
    • https://s3.amazonaws.com/divexikav/22007817583.pdf
    • http://woxutonugosafer.epizy.com/67727241379.pdf
    • http://pekiluji.atwebpages.com/english_dictionary_with_marathi_meaning.pdf
    • https://uploads.strikinglycdn.com/files/caee450d-6806-4b50-a4ca-4b1d59af3bfb/veruca_salt_song_charlie_and_the_chocolate_factory_musical_lyrics.pdf
    • http://beninoduvewer.epizy.com/number_6_worksheets_kindergarten.pdf
    • https://uploads.strikinglycdn.com/files/43f313bf-4e63-47e7-9fb7-00db8a054561/david_sedaris_collection_that_includes_santaland_diaries.pdf
    • https://uploads.strikinglycdn.com/files/113a6e7d-a167-4499-897e-ab98855f73c8/can_i_break_my_lease_due_to_coronavirus_california.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e6d9.bin
e27ed8f0df15ffa0f9a6f26a0924e974ae8389c7e6d89fe424a277f8d7641295
pdf-font-stream PDF embedded font (sfnt) at offset 0xE6D9 5332 bytes
font_01_sfnt_off0000f8dd.bin
f4910a298998f5e352686efd9627880f6440ba25810757b623430c1683d7f9dc
pdf-font-stream PDF embedded font (sfnt) at offset 0xF8DD 11688 bytes