Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f486cc361ae377a…

MALICIOUS

PDF

214.7 KB Created: 2021-04-26 04:52:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 5c8736914a2566d49030a2bad1c7c02c SHA-1: 9ed90c979eb243a209969154e9c2c756399e2dcf SHA-256: 6f486cc361ae377a46e1ed47706165b6ff1bf73400bcc752d64d2199f20a7a69
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 0.9861

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://lozipotod.ru/strik?utm_term=what+does+xi+zao+mean+in+english PDF link annotation
    • http://nuvuxek.iblogger.org/93237402780.pdfIn PDF document text
    • http://vowujebotoza.mywebcommunity.org/recurrent_aphthous_stomatitis_review.pdfIn PDF document text
    • http://zexaribamemavi.sportsontheweb.net/barney_s_version_book.pdfIn PDF document text
    • https://bipipabogudas.weebly.com/uploads/1/3/1/1/131164499/9942875b82dab.pdfIn PDF document text
    • http://mizizufiku.mywebcommunity.org/modern_calligraphy_practice_sheets_printable_free.pdfIn PDF document text
    • https://lodipopigib.weebly.com/uploads/1/3/1/8/131857338/94651.pdfIn PDF document text
    • http://tidirakozodawon.getenjoyment.net/giburim.pdfIn PDF document text
    • https://nibapexi.weebly.com/uploads/1/3/0/9/130969889/0ad0fb3e76e0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://guwitus.epizy.com/netflix_and_chill_meaning_yahoo_answers.pdfIn PDF document text
    • http://faputigumajo.rf.gd/new_priesthood_endorsement_form.pdfIn PDF document text
    • http://waxuxeg.rf.gd/17347789570.pdfIn PDF document text
    • https://746420f6-3007-491b-ba72-fd43be5094e5.filesusr.com/ugd/277b62_33ff226785d546629a279dff33d9d461.pdf?index=trueIn PDF document text
    • http://lenegimuni.epizy.com/xemirubedi.pdfIn PDF document text
    • https://98350ace-7ac4-4f38-a9d9-579fdad8050b.filesusr.com/ugd/9b2d9b_62d15983c7484108b31e7fc134d63bf3.pdf?index=trueIn PDF document text
    • http://wejajesenopezoj.onlinewebshop.net/upsc_assistant_commandant_syllabus_2020.pdfIn PDF document text
    • https://8f6f9f04-f977-4239-955d-f6aecf2dd879.filesusr.com/ugd/81cd61_8a6115681f3c45dc99d426b5abbc0049.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/f63d6edf-7b60-4261-9191-6107bb9e1e9e/best_red_light_therapy_devices_2019.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb14b213-96af-4e51-8e50-51f5cb07a519/whirlpool_4.7_top_load_washer_reviews.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0001dd51.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1DD51 91244 bytes
SHA-256: 07623ef7dfe2d70bac6b7dfc65fb7e79224a66d973845ce90ebeddc4c70f3de1
font_01_sfnt_off0002eb1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EB1D 5272 bytes
SHA-256: 9756d389a485c56f3aec5611943d50fa74eddd5d5a384ab456b7abd0bc548d70
font_02_sfnt_off0002fcff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FCFF 4676 bytes
SHA-256: 8ccd9238029b0a98218bf6a3b8fa5314d6ba0574f6580233f175cbe2c6793662
font_03_sfnt_off00030c90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30C90 17044 bytes
SHA-256: 55541526b1ea99bda2b0ce98a3f5bd6fd14632ddf6a5aa3f9b72e2d977b38182
font_04_sfnt_off00033fc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33FC3 2592 bytes
SHA-256: 86997e5401b7f1ea4cc1476493c7dace3ca3abe27323b749b169ac205ddb8ecf

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