Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee716d83ba978c0d…

MALICIOUS

PDF

111.0 KB Created: 2021-03-09 21:11:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 776abcf8e7337823673e2c8717bfa05c SHA-1: c96eaaf0a113a29a97830afe800ae2d324decd83 SHA-256: ee716d83ba978c0d8c30a0c09869563fe60cc5f40bfd5fb82fdc6d8333f90a2b
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URL that points to a suspicious domain, likely intended to host malicious content or facilitate phishing. The document body, though heavily obfuscated, suggests a lure related to a 'position paper'. No scripts were extracted, but the presence of embedded URLs and the overall malicious verdict strongly indicate a phishing or malware delivery attempt.

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://leonvi.ru/award?keyword=position+paper+about+abortion+in+the+philippines+pdf PDF link annotation
    • https://cdn.sqhk.co/safubuguva/jhihQhb/57852610562.pdfIn PDF document text
    • https://cdn.sqhk.co/linewebozid/Hgjicib/nisorusabul.pdfIn PDF document text
    • https://cdn.sqhk.co/begokaxawip/idhbhhb/zajekenaneged.pdfIn PDF document text
    • https://cdn.sqhk.co/delobepaziw/hjdFgje/vacation_bingo_play_the_best_bingo_game_ever.pdfIn PDF document text
    • https://cdn.sqhk.co/vuzefegevo/vO4jjgf/voicemod_discord_soundboard.pdfIn PDF document text
    • https://cdn.sqhk.co/xanovika/ibfhXjb/34736966998.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/fd6919d0-1dad-4ef8-9c1b-9144fce37cd5/siwekasojolonawemijivu.pdfIn PDF document text
    • https://s3.amazonaws.com/livivuvuwugeb/chemdraw_ultra_free_for_windows_7.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/391dc8d8-7911-4cf0-ac42-0a9d4376dead/possessive_pronouns_worksheet_6th_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/mikibetiv/organic_chemistry_1_workbook_for_dummies.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c390afbb-cc65-4a1e-970d-129c4806d279/79329994457.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c4a56839-a766-44e6-8de9-49cb2e8ca325/timex_shock_ironman_instructions.pdfIn PDF document text
    • https://s3.amazonaws.com/vofadoloves/zujedigixirumopitetuxik.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a48c9bc-cace-4f4c-8819-9beca01ddff6/1834021052.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3164b36f-3c5e-49ae-85d8-7259f80d4c7e/rifezopobebukawur.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f7602619-d2c3-425d-9869-5e97c60f1259/lepirefamuwemajari.pdfIn PDF document text
    • https://s3.amazonaws.com/xupizewuxere/comment_jouer_au_jeux_de_carte_solitaire.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd6a2481-2231-4fb8-b555-6736054ffda5/how_much_is_a_car_wash_at_zips.pdfIn PDF document text
    • https://s3.amazonaws.com/kozewuposoridil/should_school_be_capitalized.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/de9416b4-08d9-48c4-93a5-a86c07b61f97/prayer_of_jabez_the_book_by_bruce_wilkinson.pdfIn PDF document text
    • https://s3.amazonaws.com/vanatul/roxim.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000167a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x167A1 5152 bytes
SHA-256: 4d376fe6a9dd5ebe62260388fa4942b002a94ec02efbadb9f151c30969d6c9f7
font_01_sfnt_off0001790a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1790A 11480 bytes
SHA-256: fd40218c107f61e098464a6a20c031377787a833e0293151df9a5bf2c7a09288
font_02_sfnt_off0001a00d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A00D 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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