PDF static analysis report

Static analysis result for SHA-256 036afc257fd99794…

SUSPICIOUS

PDF

78.2 KB Created: 2021-05-01 18:04:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 6428561377c4a2e0ab2c99b988c23a18 SHA-1: 539f4f522315679ce9e8eeefc5962a6871eff9c3 SHA-256: 036afc257fd99794e6dd3fc815f0bae3b88265575ce1547a86ac1bf481080aa0
36 Risk Score

Malware Insights

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

This PDF document was flagged as suspicious by an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 3

  • 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://pelibifir.ru/strik?utm_term=a+mirror+of+common+errors+in+english+pdf PDF link annotation
    • http://wordsideget.top/english_books_for_kidsy56u3.pdfIn PDF document text
    • http://nuveclovet.xyz/wadevonixidorusetugorupeozw2y.pdfIn PDF document text
    • http://sberbank.link/the_first_90_daysozb0d.pdfIn PDF document text
    • http://pushbiz.fun/cbse_6th_class_maths_textbook_solutions_in_hindi9o964.pdfIn PDF document text
    • http://freefire-gifts.com/diagnosis_and_treatment_of_chronic_kidney_failuredt9bt.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/fumiposamisur/beamer_latex_animation.pdfIn PDF document text
    • https://s3.amazonaws.com/sirilagewuga/when_backing_a_passenger_vehicle_to_the_left.pdfIn PDF document text
    • https://s3.amazonaws.com/fosagoba/61152285213.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/46687c55-064d-4a69-aa97-f506e2a82293/83359956157.pdfIn PDF document text
    • https://s3.amazonaws.com/dorulusof/weforezonivik.pdfIn PDF document text
    • https://s3.amazonaws.com/benubapopikaj/how_many_cubic_feet_is_an_apartment_size_refrigerator.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3dbb4313-3e20-4161-a8b5-238c9d9acf9e/tintin_the_castafiore_emerald_summary.pdfIn PDF document text
    • https://s3.amazonaws.com/penefelomiju/66204341372.pdfIn PDF document text
    • https://s3.amazonaws.com/rujimidujek/zojebitugovemifador.pdfIn PDF document text
    • https://s3.amazonaws.com/tokudapele/how_citizen_eco_drive_watch_works.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7bf678a4-ea23-4c96-931b-943abdc7ddf3/22458976819.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0678712f-ad19-4a8a-8a4f-0faefcb0d758/why_is_diablo_immortal_so_hated.pdfIn PDF document text
    • https://s3.amazonaws.com/baxegezivumi/40538970757.pdfIn PDF document text
    • https://s3.amazonaws.com/senodiw/lease_agreement_template_in_spanish.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be403df9-ac1c-4d83-900f-37ac679c6f06/41137644168.pdfIn PDF document text
    • https://s3.amazonaws.com/zuniverijesud/heterochromatin_formation_at_telomere.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/39e58bea-612e-49d5-822c-16f897c0143c/why_isnt_my_vizio_sound_bar_connect_to_bluetooth.pdfIn PDF document text
    • https://s3.amazonaws.com/budovewesekaz/odia_song_video_2016.pdfIn PDF document text
    • https://s3.amazonaws.com/tajimipojimo/runepedawezoreva.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ddb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDB4 5348 bytes
SHA-256: 1d964e83848cab8aa0b9a23b6b3ac7ce0031433fecdffb4b74d8f50e5e83f7b7
font_01_sfnt_off0000efc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFC0 11064 bytes
SHA-256: c0225d3aff82333bb49b22ea5984fb763c3bfe8ac2fdb95420e56a9c035b6338
font_02_sfnt_off000115ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x115CE 16164 bytes
SHA-256: ebd2804bff382343e08f6a42dc45f69f4e794c08b23908ae60ba78ededae74b1