Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f8780bc84339418…

MALICIOUS

PDF

77.1 KB Created: 2021-05-25 07:28:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: c29291417beefa0d72d8f3785521c517 SHA-1: b07b7a31f79f5104ce44086904c996a2100fce8e SHA-256: 5f8780bc84339418a24a858eca2e38f471c9989ea3d4d41436113711325ef106
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains an embedded URL that redirects to a phishing site, disguised as a generator for Madden 16 in-game currency. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. No scripts were extracted, but the presence of a malicious URL is a primary indicator of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://dugedepap.ru/strik?utm_term=madden+16+coins+generator+free PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4409998/normal_5fd121dd728ae.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381095/normal_60675a56a0904.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386593/normal_5fe4086c27b5a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393346/normal_5fd287a2a865d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391621/normal_6018417cebe83.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4504554/normal_6011b66944f8b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496374/normal_5ff4cf308d492.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/c15b0b8f-1344-42ce-b582-f30d1772d987/happy_birthday_ukulele_chord_easy.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ffb08597-f73d-4af5-97cd-60b1096809b5/how_to_connect_rock_candy_nintendo_switch_controller.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc41db4c-260f-465a-8025-e7e33688c425/11203432744.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e80dcd8f-2d22-4a19-a5ca-afc305fe3402/how_many_calories_a_day_on_dash_diet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b8df35dd-b7e4-4ded-93b6-95ea7941e11a/how_to_be_a_freelance_personal_trainer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/becfcfd2-5039-446a-b63c-ec66bdfbf385/what_is_geometric_formula.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a703ca8e-d673-4fcd-84d7-f7eeb500141a/25420750407.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0874106d-165d-47cf-8626-2076c8911e29/39105836399.pdfIn PDF document text
    • https://s3.amazonaws.com/sajatofubote/81034541970.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/97fe7ff8-0989-4806-8ce4-6dd778a44a40/redugavo.pdfIn PDF document text
    • https://s3.amazonaws.com/xufujofaleki/video_call_app_for_laptop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb989f27-92e5-4dac-97bf-66e491ed6ccb/what_does_whetto_mean_in_spanish.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0fab070d-2d00-4c22-96bb-783cc5b17d6e/what_is_parmenides_philosophy.pdfIn PDF document text
    • https://s3.amazonaws.com/bewibiwat/psx_android_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4f1def0e-197b-4a01-bdd1-2e1c2bd23aa7/17585128081.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 4

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_off0000eda3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDA3 5368 bytes
SHA-256: 149068ffbbb9e6249a7a5941ba5835fe710f17552b1fa8b6d5b3235523fe5c1d
font_01_sfnt_off00010004.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10004 11396 bytes
SHA-256: 34954303387d71f3b02b9d94c6fd36d06434d8a17109c50aa587adbb58ae995e

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