Malicious PDF — malware analysis report

Static analysis result for SHA-256 300387005b902313…

MALICIOUS

PDF

74.2 KB Created: 2021-03-15 07:30:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 1d1e114a2f0fed82861474f45cc33890 SHA-1: 15518b7601a5d114c938fbad040b8be24004b51e SHA-256: 300387005b902313e7b2b0cd5f510e97164015145e9122fabbfd826f13303bc6
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-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://zajinet.ru/wix?keyword=the+99+critical+shots+in+pool+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4378151/normal_602654eb987ca.pdfIn PDF document text
    • http://vumogegotawugub.mypressonline.com/wawoxekawuzuvotu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470833/normal_5fe3ef0278da4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461483/normal_5ff1b84eafad0.pdfIn PDF document text
    • http://mazipuvaxa.mywebcommunity.org/59595272468.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489429/normal_5fc6560dd40f5.pdfIn PDF document text
    • http://tevaruv.sportsontheweb.net/fitolopobazizujoto.pdfIn PDF document text
    • http://kodavuviguwu.mypressonline.com/ringkasan_biologi_sma.pdfIn PDF document text
    • http://saroforati.medianewsonline.com/dmv_test_in_spanish_2015.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/gazivemon/carrier_bag_design_template.pdfIn PDF document text
    • https://s3.amazonaws.com/wolawatin/bubalofibadaso.pdfIn PDF document text
    • https://s3.amazonaws.com/teximikamukubo/alt_balaji_new_web_series.pdfIn PDF document text
    • https://fa53e508-d88d-41cb-897c-7a5b6f1bfcc3.filesusr.com/ugd/361045_dd33acbe3c3d4368b40042e34b00d099.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/d3667743-f15f-4798-ab33-2aca1e072c2e/50839408865.pdfIn PDF document text
    • https://69868269-04aa-4a0d-8379-1371762fd556.filesusr.com/ugd/d8beff_093c474a4374491c8ea960c9df7e5e41.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef18a0ab-3d7e-4e40-b62b-f62e58748573/what_kind_of_transmission_fluid_does_a_2007_nissan_altima_take.pdfIn PDF document text
    • https://ddf64d59-5240-4154-9987-17dfc28e22c7.filesusr.com/ugd/cec570_69568c56878a4e96a9f449a114262d11.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/e5014413-f00a-42c0-b3ec-ebd8733f3ae7/cthulhu_mythos_stories.pdfIn PDF document text
    • https://28546a20-d0cc-4b82-bb4f-6711990cd5a3.filesusr.com/ugd/0bcf16_1f18f3f557cc432488ce5a34642c10c4.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jamuluvuvava/blender_3d_file_free.pdfIn PDF document text
    • https://f4dd034e-00c7-465c-b850-fb2d75accad5.filesusr.com/ugd/769f78_93f4e000086642278f2db1fdce3a091a.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_off0000e3ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3CE 5348 bytes
SHA-256: b8b97217cb9472943719c0d72cb90ec8048d408ef959ebd07e3be5d9ce124ee5
font_01_sfnt_off0000f5f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5F8 11068 bytes
SHA-256: 4f3fbe322b4279cb732bda024e1f077d6b0cb3ca4b7a0386c2cb4911fec5d6f2

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