Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d6fbc1437291b81…

MALICIOUS

PDF

75.5 KB Created: 2021-03-13 22:02:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 16d94530d18b2f6e39755345543d2f7f SHA-1: aaa0d9a7a54ad6e6587a86bcc18252f9fcc0800c SHA-256: 6d6fbc1437291b812b92f569f392a624f3ac3fdd76262b4b9263ecbc7b5b6a32
96 Risk Score

Malware Insights

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

This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. The document body contains text that appears to be a lure related to "Alex rider trailer music", directing the user to the URL https://xezojetit.ru/strik. This URL is likely used to host a malicious payload or phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

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://xezojetit.ru/strik?utm_term=alex+rider+trailer+music PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4365653/normal_604857cb04551.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414514/normal_5fe63fe98fb35.pdfIn PDF document text
    • http://kefijor.mygamesonline.org/both_sides_now_tab_tallest_man.pdfIn PDF document text
    • https://cdn.sqhk.co/tumowara/hijfqhg/punapo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444853/normal_60493d349ee56.pdfIn PDF document text
    • http://joritirumag.mypressonline.com/is_jersey_mikes_tuna_healthy.pdfIn PDF document text
    • https://cdn.sqhk.co/valujoper/bVieUcH/slingo_free_coins.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459654/normal_6046c324e7df0.pdfIn PDF document text
    • http://lubevos.scienceontheweb.net/diary_of_a_wimpy_kid_dog_days_movie_google_docs.pdfIn PDF document text
    • https://cdn.sqhk.co/daladovum/tRLughD/tawepajuti.pdfIn PDF document text
    • http://nidewopovuwubo.mypressonline.com/27423510.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424982/normal_604cb96f803e5.pdfIn PDF document text
    • https://cdn.sqhk.co/diwidivu/hbjiaid/82040341538.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/rujimidujek/adare_poojaneeyai_dj_song.pdfIn PDF document text
    • https://s3.amazonaws.com/palikuvexake/bored_piles.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibebulosaxug/budaxiwijubir.pdfIn PDF document text
    • https://s3.amazonaws.com/retobifulipo/samsung_tv_remote_volume_wont_work.pdfIn PDF document text
    • https://s3.amazonaws.com/tapexiw/81000437756.pdfIn PDF document text
    • https://s3.amazonaws.com/ninazarila/cellulose_insulation.pdfIn PDF document text
    • http://bivojeda.atwebpages.com/diono_radian_3rxt_convertible_car_seat_black.pdfIn PDF document text
    • http://tulajadulixo.myartsonline.com/honeywell_8000_user_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/petubapizo/geometric_distribution_exponential_form.pdfIn PDF document text
    • http://tuzuxutetug.atwebpages.com/honda_odyssey_transmission_fluid_change_cost.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_off0000e517.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE517 5144 bytes
SHA-256: 82e9ec8a9e082e0ae8c0ef6ebdb6074cca934355a44a839179e59a463e8dcc52
font_01_sfnt_off0000f67f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF67F 12284 bytes
SHA-256: 024dd0a0852b7e9e20ceb1783892e4e37c31af6176decac2ed9867b5d979e316

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