Malicious PDF — malware analysis report

Static analysis result for SHA-256 5064336eccfea869…

MALICIOUS

PDF

71.0 KB Created: 2021-03-26 10:02:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 375580f3eefdb609dcf2d17b0fe75fc8 SHA-1: 8ed2c5c376cdd6973567a78561e48cbb6744fd97 SHA-256: 5064336eccfea869ae904fb6e2016bd24d3eeec8e9273be4a8cc8fbedb0e289a
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and 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 0.9998

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://midufefew.ru/wix?keyword=lewis+structure+practice+worksheet+2+answers PDF link annotation
    • https://cdn.sqhk.co/goluxewimabu/gfguhb4/gem_and_mineral_show_2020_kansas_city.pdfIn PDF document text
    • https://cdn.sqhk.co/xubupigegi/jfhegjj/miansai_double_wrap_rope_bracelet.pdfIn PDF document text
    • https://cdn.sqhk.co/pajubopolak/jcuheVp/sheet_music_for_bugle_calls.pdfIn PDF document text
    • https://cdn.sqhk.co/gufemazibafi/hopjcw2/zutajekorujalixu.pdfIn PDF document text
    • https://cdn.sqhk.co/nazamesuwute/bihZhek/52033654863.pdfIn PDF document text
    • https://cdn.sqhk.co/raxuzuvuluf/0Yhjdhf/96202713305.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/tonemakopinibem/presentation_in_english_macmillan.pdfIn PDF document text
    • https://s3.amazonaws.com/goviwigax/free_indesign_yearbook_templates.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/18029f44-537e-4dd5-9c6f-66dfbf7db26f/husqvarna_445e_ii_chain.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/81e9dbd9-08d9-473b-b05e-8bc33e936b69/bopirokovifubipoj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9893b3b8-fdd1-4688-99ef-088d697fe7ef/whats_the_starting_pay_at_starbucks.pdfIn PDF document text
    • https://s3.amazonaws.com/jedaxopopuko/dedabag.pdfIn PDF document text
    • https://s3.amazonaws.com/dazifozixawus/18277097898.pdfIn PDF document text
    • https://s3.amazonaws.com/sepovutapakogaf/ariston_900mm_freestanding_oven_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/padadutiseni/arere_ekkada_ekkada_karaoke_song.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cd1700d3-38cc-43f5-9ebb-1cb4f5933dc1/lizin.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/49899f94-6935-43be-bc45-fdda46f6441d/vowezenerofulavalikageji.pdfIn PDF document text
    • https://s3.amazonaws.com/kegubinefuda/data_communications_and_networking_forouzan_solution_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/853055f5-d9a3-487e-8c16-97369f421c0b/46021442578.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/942db1de-082b-402c-9a64-b9e9671e29cb/refovo.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_off0000db87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB87 5216 bytes
SHA-256: 5e54b20dbc4dd7e518e7655cbdbc6760f8c2499bbaaf3b805f131c01bd479b9f
font_01_sfnt_off0000ed5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED5A 9824 bytes
SHA-256: f4e1fedf5b8f3b6af1811da1eaacfe2f793e5d1c43a8856c5212a097b01c171c

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