Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b858201ec0a374d…

MALICIOUS

PDF

105.8 KB Created: 2021-02-28 15:57:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: a1a55251d3fbbca6d6a4697d9a70db64 SHA-1: 9669171acaff633c68cf854559615eafda286fc3 SHA-256: 2b858201ec0a374ddd74020da6dadf3864e47e98ddc84cca49f0a64c2a58ebe1
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 0.9997

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://botokaw.ru/strik?utm_term=i+am+happy+with+what+i+have+meaning+in+tamil PDF link annotation
    • http://xumupizaxuto.scienceontheweb.net/12972917192.pdfIn PDF document text
    • http://nomudepalak.medianewsonline.com/xomazebukejefopimemiputid.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415321/normal_6032e23f4252f.pdfIn PDF document text
    • http://bamefidev.mygamesonline.org/what_is_the_septuagint_version_of_the_bible.pdfIn PDF document text
    • https://cdn.sqhk.co/lijipatalenu/f2UV6vc/sound_absorption_coefficient_calculator.pdfIn PDF document text
    • https://cdn.sqhk.co/xedufoga/d1MZfia/opera_mini_fast_web_browser_download_for_android.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://dakafatuvuguviz.atwebpages.com/application_deadline_for_texas_am_san_antonio.pdfIn PDF document text
    • https://s3.amazonaws.com/gonima/xukelodod.pdfIn PDF document text
    • https://s3.amazonaws.com/dogazisuze/jio_movies_telugu_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/tubukeganuji/mobile_agricultural_machinery_and_equipment_form_definition.pdfIn PDF document text
    • http://palelezugob.onlinewebshop.net/vamutamizakaguvojikako.pdfIn PDF document text
    • https://s3.amazonaws.com/mukutud/sonafige.pdfIn PDF document text
    • https://s3.amazonaws.com/dufekifaral/sad_life_status_for_whatsapp_video.pdfIn PDF document text
    • https://s3.amazonaws.com/tulosa/wujesifozuvotaroxarivav.pdfIn PDF document text
    • https://s3.amazonaws.com/nademopor/9634186259.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00014330.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14330 5148 bytes
SHA-256: 2d10bde8066a2a00a24cd3f39ff076d4a7072a8f78d7f6659daea4817f598072
font_01_sfnt_off000154b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x154B2 4948 bytes
SHA-256: bda605719aebc9cb694e1d552ed3c440856c93f2a7a83d7673c1238c6dc52f39
font_02_sfnt_off00016498.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16498 11596 bytes
SHA-256: c68562bfdd4e5833d78cae48b4c2ce9a5c26f65801f45b46c381035cbe203561
font_03_sfnt_off00018c5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18C5F 3140 bytes
SHA-256: ded707cbce8cc4cd6042334bc1fdc78db8da2e8a6b9a7bba6499970f3b3d349c

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