Malicious PDF — malware analysis report

Static analysis result for SHA-256 2388a8ded2ee82d9…

MALICIOUS

PDF

85.7 KB Created: 2021-04-03 17:15:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 442bc000896c272af8544845955930b1 SHA-1: 9febfd29ec20c2674f9414e1b4581eac8a1346d9 SHA-256: 2388a8ded2ee82d9468a3d80de0317ee1745356807678cf6228093951b0af5a5
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'golowaki.ru', which is likely part of a phishing or redirection scheme. The document body, though heavily obfuscated, contains references to a 'Pokemon let's go pikachu guide', suggesting a lure to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://golowaki.ru/123?utm_term=pokemon+let%2527+s+go+pikachu+guide PDF link annotation
    • https://cdn.sqhk.co/sevijeruba/iflV2je/latigo_translate_spanish.pdfIn PDF document text
    • http://tixanijematewe.mypressonline.com/matrix_determinant.pdfIn PDF document text
    • https://cdn.sqhk.co/resesexiraf/7iiijjh/odd_eyes_raging_dragon_card.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365601/normal_5fe6d4b160e35.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401519/normal_606213974e9fc.pdfIn PDF document text
    • http://taxezobojoxa.iblogger.org/audio_power_amplifier_handbook.pdfIn PDF document text
    • http://pixenevalir.22web.org/cara_membuat_google_sheet_online.pdfIn PDF document text
    • https://cdn.sqhk.co/duxisabaza/R4jcgfE/cat_mario_linux.pdfIn PDF document text
    • http://xofebuledat.scienceontheweb.net/acc_guidelines_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/fedovipawe/CnTgfTN/br_style_mod_apk_0._9504.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445868/normal_5fd7dd5e325f4.pdfIn PDF document text
    • https://cdn.sqhk.co/pijovowifil/ejdifOn/fireboy_and_watergirl_2_tyrone_s_unblocked_games.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497110/normal_604fcd6a9c650.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jagaxuvu.epizy.com/zigasukozepenekiradawajig.pdfIn PDF document text
    • https://s3.amazonaws.com/pevuwarobuvowa/example_annotated_bibliography_apa_6th_edition_format.pdfIn PDF document text
    • http://pijosufun.myartsonline.com/bilbo_s_last_song.pdfIn PDF document text
    • https://s3.amazonaws.com/zupenafud/56121622031.pdfIn PDF document text
    • https://s3.amazonaws.com/galinikagopit/lunowararo.pdfIn PDF document text
    • http://dugoneluxokudu.rf.gd/west_bend_bread_machine_recipes_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/mujevubutukoxu/97353482661.pdfIn PDF document text
    • https://s3.amazonaws.com/nafoxuda/96778249515.pdfIn PDF document text
    • https://s3.amazonaws.com/defipedibe/26768381008.pdfIn PDF document text
    • http://lafagelupuf.myartsonline.com/duwiw.pdfIn PDF document text
    • https://s3.amazonaws.com/wulotugadag/how_to_use_keyboard_text_shortcuts_on_mac.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 8

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_off000111f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111F3 5488 bytes
SHA-256: 15766ac3dd37879e301f118412e971b41fbfb060b2461a9f4bc65656c4d050db
font_01_sfnt_off00012484.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12484 10660 bytes
SHA-256: 25c5d951740c882bda5e763ff17c7419067437710f623688f8559a512cc4edd6

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