Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b6081d3067ca5e0…

MALICIOUS

PDF

77.6 KB Created: 2021-03-19 02:52:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: d231f915bb9f977f1a691ce1dd84fa38 SHA-1: 9929152677fda6be99eb1e30640126006d77c8f9 SHA-256: 6b6081d3067ca5e0339ec75e1665ef8405221326af82ac2a258b374aa988cf9d
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 0.9998

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://mezovuduw.ru/strik?utm_term=sonic+menu+lunch+specials PDF link annotation
    • https://cdn.sqhk.co/vibebexez/vjavjbC/bipagomaturobumuvibo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405467/normal_600388ead3b38.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375353/normal_5fd9c0a69720b.pdfIn PDF document text
    • https://cdn.sqhk.co/kawurefeki/hjMwgig/fruit_splash_games_download_apk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450151/normal_5ff03198a12d5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4497646/normal_60097d537ad7e.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/musokejixami/what_kind_of_transmission_fluid_does_a_2003_honda_accord_take.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/35500d20-57b4-4354-b965-2092750e214d/calories_for_subway_tuna_sandwich.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/54a18fbd-ae89-4def-bbaa-97e33781c138/ridgid_10_inch_miter_saw_review.pdfIn PDF document text
    • https://s3.amazonaws.com/nodetuxapabara/56395026443.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e955a9dc-5e1f-452a-9521-87070842bff3/why_wont_my_waterpik_charge.pdfIn PDF document text
    • https://s3.amazonaws.com/wewuxuviwar/36002514353.pdfIn PDF document text
    • https://s3.amazonaws.com/fekazudabo/3241244005.pdfIn PDF document text
    • https://s3.amazonaws.com/piwanisaj/identifying_genetic_disorders_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/tawosutosuxi/vuzaxipamifo.pdfIn PDF document text
    • https://s3.amazonaws.com/lodazojamuva/what_does_2_degrees_of_separation_mean.pdfIn PDF document text
    • https://s3.amazonaws.com/vonuxagupeduze/barbie_dream_house_games.pdfIn PDF document text
    • https://s3.amazonaws.com/fefurorobumi/how_to_reset_charter_cable_remote.pdfIn PDF document text
    • https://s3.amazonaws.com/fejakixoweka/39815818017.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f19a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF19A 5180 bytes
SHA-256: 3a2103a8bbb6b96095b81bea72ef2d4de5b3eb8b2051accae7e5be0675fc0495
font_01_sfnt_off00010311.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10311 11420 bytes
SHA-256: ae7c909a868bbf8e31b2586ded80fa6ccf0ede23a7300f4949a8e5d6e091fe72

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