Malicious PDF — malware analysis report

Static analysis result for SHA-256 640a3f260976f34c…

MALICIOUS

PDF

774.3 KB Created: 2021-06-01 14:10:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 9bd714875f0f90f321df715fdeebcc51 SHA-1: 8292af2c3cd0546c52f3a8f204571e107b94c832 SHA-256: 640a3f260976f34c8b0a4703de4c89e46fe696613282b206d4eb90738b9b0c0a
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 0.5406

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://pistant.ru/pbw?utm_term=daily+power+and+prayer+devotional+myles+munroe PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4420903/normal_605a76e5c8e7b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371509/normal_60443e7983fe3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/70743cd6-0324-435d-b7ae-d5014cb971b1/dudunurilo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/941fd3c2-0b42-498c-84e7-2d8b1bdd55d5/60908038663.pdfIn PDF document text
    • http://pupowivala.pbworks.com/f/bedejezezukaxigusapija.pdfIn PDF document text
    • http://jujirafamena.pbworks.com/w/file/fetch/144448239/torebanegezodowomijar.pdfIn PDF document text
    • http://funinupun.pbworks.com/f/short_book_review_of_treasure_island.pdfIn PDF document text
    • http://tisowowuduwe.pbworks.com/w/file/fetch/144427092/iobit_driver_booster_6.5_key.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e81905f-3564-4827-85de-d0c1d6865026/music_notes_emoji_for_facebook.pdfIn PDF document text
    • http://wuranosa.pbworks.com/w/file/fetch/144416427/kifababivi.pdfIn PDF document text
    • http://fotikeralo.pbworks.com/w/file/fetch/144443493/zezuwebasa.pdfIn PDF document text
    • http://mapijakemifo.pbworks.com/f/forgot_apple_id_password_and_security_question_answers.pdfIn PDF document text
    • http://kufujibumufa.pbworks.com/f/63484349187.pdfIn PDF document text
    • http://xoxafepapesu.pbworks.com/w/file/fetch/144420819/56326735250.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6bec4c8d-7423-405b-a42a-6f9c72da4f8c/91153726494.pdfIn PDF document text
    • http://kelivesas.pbworks.com/f/comparing_and_ordering_fractions_decimals_and_percentages_worksheets.pdfIn PDF document text
    • http://pimepovume.pbworks.com/f/8923958304.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/417b05f5-4847-4ed5-9d73-c36e3afe253a/ford_fiesta_repair_manual_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/80973a04-5c13-442d-a63d-a6b901e6354e/definition_of_circle_in_bengali.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a44eb3f1-99ac-4252-b7e6-eae9315e3ce5/66925622559.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/145def2f-1b47-4afb-8d1c-09473dd6fb37/wifudutibumuvozopo.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000bcb10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBCB10 5360 bytes
SHA-256: e06e38cb9b70698ec498f494565c78b0bf3973f9549b30311439c52777fe5f75
font_01_sfnt_off000bdd62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBDD62 12108 bytes
SHA-256: 6bd8287a8e6769ef97f42acea5894ed8e6a5352f08b2efd1ef8f9c0f812524b8

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