Malicious PDF — malware analysis report

Static analysis result for SHA-256 69a40d5f9b860423…

MALICIOUS

PDF

75.6 KB Created: 2021-03-10 05:23:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 6804ae105a2c465cb6370db7fb1b4f14 SHA-1: e5017b264fb29b7322a8275b1eb074fc65391873 SHA-256: 69a40d5f9b86042363e8c2c029891550d58b05b6f2cd2f706766e529e7eb526e
104 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 presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://xajibur.ru/strik?utm_term=how+to+get+quadratic+equation+on+ti+84+plus PDF link annotation
    • http://resapus.scienceontheweb.net/42188491103.pdfIn PDF document text
    • http://tuvivukaroj.mygamesonline.org/would_you_change_your_religion_to_marry_the_person_you_love.pdfIn PDF document text
    • http://kalowodopole.mygamesonline.org/ernest_hemingway_house_tour_oak_park.pdfIn PDF document text
    • http://wivaserana.mywebcommunity.org/pokemon_fire_red_leaf_green_lavender_town_music.pdfIn PDF document text
    • http://wajazenizur.mywebcommunity.org/ashrae_1997_hvac_fundamentals_handbook.pdfIn PDF document text
    • http://vivubowi.getenjoyment.net/wutasodode.pdfIn PDF document text
    • http://zinulofuwobixum.iblogger.org/47255367945.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://limedebenilaz.rf.gd/best_gate_for_top_of_stairs_with_banister.pdfIn PDF document text
    • https://s3.amazonaws.com/rojalexipokadaz/kuxumakeb.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f3288cf-d016-4925-9c69-7cd2c044b2aa/how_to_be_filled_by_the_holy_spirit.pdfIn PDF document text
    • https://s3.amazonaws.com/jusuberu/stock_aging_report_query_in_sap_b1.pdfIn PDF document text
    • https://s3.amazonaws.com/putelekireza/72577909340.pdfIn PDF document text
    • http://gipebevu.atwebpages.com/sexinojowukuwud.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d8f308bc-2582-4adb-a80b-49c1a39596e7/john_deere_lx255_hood_repair.pdfIn PDF document text
    • https://s3.amazonaws.com/bogijexu/microsoft_visual_basic_2010_express_registration_key_free_download.pdfIn PDF document text
    • http://rozosijamuruxo.rf.gd/activated_carbon_msds.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7993ebc0-be60-4442-890a-c23b9a66b5cc/xavosurowoveso.pdfIn PDF document text
    • https://0e733887-fd72-4d21-8b10-0a39cafbc931.filesusr.com/ugd/1e4d10_29a5bf97881f48fca1642fbf40c59807.pdf?index=trueIn PDF document text
    • https://c245485c-e1a4-4c5a-9a2a-c465a95e53c8.filesusr.com/ugd/25f824_a782f3ac857543548b80a2615a06cff3.pdf?index=trueIn 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_off0000e85b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE85B 5704 bytes
SHA-256: dabaf83e27e52ce0ac8d9b398b1d46db8f629a132a8ffb479f9081a5af51fff1
font_01_sfnt_off0000fbe8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBE8 10868 bytes
SHA-256: fdf1b59f874233b8d5539792c79bf226e5e490c4e76071b735f9bc50c914c7c8

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