Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3eeb8acca686845…

MALICIOUS

PDF

74.2 KB Created: 2021-03-13 13:14:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: dda054a9955971a66017ebdf34d69c38 SHA-1: 9b2941d5fb5d80707e1e44d3f3d327bfb6a977c8 SHA-256: f3eeb8acca686845da8a9378dc677d8fdab9e97d14e33493b3e0b346fe344bab
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 0.9997

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://druttle.ru/aws?utm_term=how+to+use+thinkorswim+to+trade+options PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4393499/normal_5fce4f51adae6.pdfIn PDF document text
    • http://cocobeautybar.ca/petuziporiz64hs.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369936/normal_601377cc5e3d1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484605/normal_5fce562cdd539.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370780/normal_5fdc006a0d42a.pdfIn PDF document text
    • http://beach-fruit.fun/62291427036tw0gn.pdfIn PDF document text
    • http://qwonder.space/lanonumititarovusedajgoazc.pdfIn PDF document text
    • http://otomail.business/vepedavuzobalunewevo1gzdf.pdfIn PDF document text
    • http://prodson.space/article_15_trailer_mp448je9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502246/normal_60242bc485539.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/e6729a4d-3827-4528-bfe8-8967a10dfdfe/velanibumuvujeb.pdfIn PDF document text
    • https://s3.amazonaws.com/jawusawar/how_to_connect_rock_band_to_ps4.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/148ee39e-f469-47df-86b3-ab4b2f30a265/how_to_fix_ignition_lockout_on_ideal_boiler.pdfIn PDF document text
    • https://s3.amazonaws.com/muvazi/mumov.pdfIn PDF document text
    • https://s3.amazonaws.com/mogipegi/cbt_assertiveness_training_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/gosete/tascam_dp-008ex_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/vifusupegiza/kakunevopufizo.pdfIn PDF document text
    • https://s3.amazonaws.com/nedijowewoded/dd_spells_1st_level.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ea878f7-a606-44ce-b36a-dc3c19a9150b/what_are_the_features_of_present_constitution_of_nepal.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f193c6c2-d001-4d2a-9e3c-763cc2bca8bc/how_many_red_aces_are_in_a_deck_of_cards.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e4e3d1d-3b33-42f1-982d-f1d28dc0eca3/hoover_linx_cordless_stick_vacuum_cleaner_bh50010_australia.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_off0000e48e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE48E 5284 bytes
SHA-256: 83f1e4d9ac7188dcfe18f4fe197fc7c0ac6ee6c15af675c62c453f1953ed5cf8
font_01_sfnt_off0000f666.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF666 10992 bytes
SHA-256: d063a2ceeb2c94888e8c523ab7e008625cc18eb85ab45a1e9f31e7bc0ea8a3a4

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