Malicious PDF — malware analysis report

Static analysis result for SHA-256 9cb15c08c34fd1ec…

MALICIOUS

PDF

83.4 KB Created: 2021-05-02 06:11:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 8341467e0b84a8dba9ebaef9327e5cc5 SHA-1: 3ac4b5776d4fc2f23406c02beaf68e4c8504e0fd SHA-256: 9cb15c08c34fd1ec77698add64f32e6c26d6c845a7108afc8e3a22b8fce30c63
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 0.9990

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://dafemum.ru/strik?utm_term=georgia+driver%2527s+permit+rules PDF link annotation
    • http://kugaraginoja.mypressonline.com/borkum_fhre_fahrplan.pdfIn PDF document text
    • http://jaxifas.getenjoyment.net/repolevofelojefigo.pdfIn PDF document text
    • http://kujamemapevubu.mypressonline.com/datim.pdfIn PDF document text
    • http://vixitatevejiwo.getenjoyment.net/sepegesif.pdfIn PDF document text
    • http://libutulidux.medianewsonline.com/how_heat_mode_works_in_samsung_ac.pdfIn PDF document text
    • http://xenipufuk.22web.org/visupesevidedasa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368978/normal_5fd7a123b6172.pdfIn PDF document text
    • http://korogesubelokut.mypressonline.com/buying_and_selling_business_math.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369657/normal_6021f43d1c8b2.pdfIn PDF document text
    • http://napowojeba.medianewsonline.com/58201002226.pdfIn PDF document text
    • http://gagefiwirimat.medianewsonline.com/atbu_admission_list_2020.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://josetevuj.epizy.com/crash_bandicoot_1_guide.pdfIn PDF document text
    • http://wewuvifoda.epizy.com/rarolozajinif.pdfIn PDF document text
    • https://s3.amazonaws.com/fosalizuzu/45148456355.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e1c38fc2-f312-4234-a6af-29e911d062ac/types_of_approaches_to_curriculum.pdfIn PDF document text
    • https://s3.amazonaws.com/xufaxoferugod/64586317172.pdfIn PDF document text
    • http://vugovule.epizy.com/88060768445.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6f97bebf-b4f1-43cd-b9ff-48b79f130040/gutafovubagukuzidi.pdfIn PDF document text
    • http://sajulugebimisu.myartsonline.com/best_minecraft_island_seeds_1.14.pdfIn PDF document text
    • http://sijelufuzarolup.epizy.com/computer_application_in_business_m._com.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/98744c69-d12b-4efe-b6f9-6078900c0ba4/axial_yeti_score_body.pdfIn PDF document text
    • https://s3.amazonaws.com/xeropizuwe/44247636005.pdfIn PDF document text
    • https://s3.amazonaws.com/pogolo/whats_the_best_way_to_listen_to_music_while_working_out.pdfIn PDF document text
    • http://rabelinowizufe.myartsonline.com/92404479958.pdfIn PDF document text
    • https://s3.amazonaws.com/bufipevuril/82180915832.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f822.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF822 5180 bytes
SHA-256: 9023af935ea97d106acb72e465b24a75ccaea51ea26071c1f455f0b33f166084
font_01_sfnt_off000109e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109E0 11448 bytes
SHA-256: 912e931e19a8f1eb3521e04c7c25fbb24ebd77c865c6668e8ff5cf3051bf13c3
font_02_sfnt_off00013061.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13061 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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