Malicious PDF — malware analysis report

Static analysis result for SHA-256 abe92a70cc43c630…

MALICIOUS

PDF

217.5 KB Created: 2021-03-31 18:01:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: e962d94a32709a209a2b251649314f47 SHA-1: 576f6a4d5f25ea83d46bcbad462b3403c3d94f2d SHA-256: abe92a70cc43c6306fed9d971961a2051fcfd0479e8519d6da485b2d9d07e5d3
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 0.9947

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://nipisod.ru/award?keyword=libertarian+theory+of+justice+pdf PDF link annotation
    • https://bitusuverutito.weebly.com/uploads/1/3/1/8/131871453/pomovumeg.pdfIn PDF document text
    • https://vudeberas.weebly.com/uploads/1/3/3/9/133997553/8342775.pdfIn PDF document text
    • https://jadigitunuw.weebly.com/uploads/1/3/4/6/134672933/bobupefitamejiwuf.pdfIn PDF document text
    • http://sikovagaxuwe.22web.org/foduruvageleba.pdfIn PDF document text
    • http://witexodegimo.iblogger.org/does_advice_have_a_plural_form.pdfIn PDF document text
    • https://rukadewij.weebly.com/uploads/1/3/4/0/134012321/zabexozid-nelaguguvexi.pdfIn PDF document text
    • http://sivadozulov.iblogger.org/7056218811.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/8e86610b-9bb0-4cbe-ae8a-72d3b87d59cf/how_the_grinch_stole_christmas_text_with_pictures.pdfIn PDF document text
    • https://734e8db3-b9db-457c-abaa-08c06218e7ae.filesusr.com/ugd/f6bb82_aafe68fc117a42eda7a08af7b79500eb.pdf?index=trueIn PDF document text
    • https://04fc2a56-3ca8-4b90-bfe8-b05f9e7ed3d8.filesusr.com/ugd/51e9d0_35b83d75ef7f4825a4ce7ff8eec56767.pdf?index=trueIn PDF document text
    • http://kijenor.epizy.com/miss_asia_pacific_international_2018_winning_answer.pdfIn PDF document text
    • https://6440a9f6-5e82-4153-977b-4ffe9374ec4a.filesusr.com/ugd/7182f3_09445bdb815f4a10a076f4a55d4b4c08.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/baposivarabuj/book_report_worksheets_third_grade.pdfIn PDF document text
    • http://retipike.rf.gd/infinity_gauntlet_thanos_trick.pdfIn PDF document text
    • https://s3.amazonaws.com/tabobujimo/asus_p8z77-v_pro_cpu_compatibility.pdfIn PDF document text
    • http://vokifanebol.rf.gd/chrome_flash_not_supported_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/lunojol/the_impossible_full_movie_in_tamil.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002f814.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F814 5352 bytes
SHA-256: 573727da95ae49d06124ba445d54ddef537869897de370d4e3a88f689b0fef92
font_01_sfnt_off00030a3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30A3E 14404 bytes
SHA-256: 2379ef21443ea5bae2077e680d181f7eef930d6637e612f370e4771111459023
font_02_sfnt_off00033643.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33643 16060 bytes
SHA-256: 5b0d2701ab39d2f69c66d7d16c60d8db0b323aa0832947137e757b5401d27330
font_03_sfnt_off00034adb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34ADB 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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