Malicious PDF — malware analysis report

Static analysis result for SHA-256 54606991fd5c615b…

MALICIOUS

PDF

68.6 KB Created: 2021-06-09 17:00:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 9232c0415d1d32c84201f59b3d595579 SHA-1: 215f26d6c61ebef3f32bfd35ba1bf303f9a55b3f SHA-256: 54606991fd5c615b94c52363394a2282acaab682a6181bddbd5b7c50f177717f
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 0.9996

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://synerhu.ru/pbw?utm_term=ankhiyon+ke+jharokhon+download+mp3 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4385030/normal_601262e2b3507.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367905/normal_601908ecadf68.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372972/normal_5fe384931286f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470028/normal_6056ec19bb3ba.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a6d6ecf-f1b1-4fb2-854b-4a8cf8a0a43f/how_the_grinch_stole_christmas_cartoon_on_tv_2020.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/99829a07-fc7e-46b4-99a6-70a673c99f0b/simerevuzenuz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8bee64db-bfc3-40e0-b87a-18d9386db964/71839114873.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/78c9e952-c184-4cd5-a373-82bb6cd8d1b2/como_aprender_ingles_rapido_y_facil_en_casa_gratis_para_nios.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0b7011f2-1dc4-475e-9fa3-1fe53544ef28/tutebezeverevigelugazulel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d8e9f3c-d8bf-4568-a7f5-9b2c15cfe543/how_to_cut_a_micro_sim_into_a_nano_sim.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8faa0074-41cc-4a20-b2da-4c6bd461d7ff/9961174690.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b89fca93-da94-4d87-95b8-3f6501eecedb/datomutidapugexijarow.pdfIn PDF document text
    • http://xodelow.pbworks.com/w/file/fetch/144576582/72760245759.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6dfba557-9fb8-42ca-8c2b-d83e74cf6cdd/kovawunusajejefumoragi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d2bd80e3-4e45-469a-8e2c-abd3b3f801a5/motivation_assessment_scale_graph.pdfIn PDF document text
    • http://jozeluwofe.pbworks.com/w/file/fetch/144618882/98946682815.pdfIn PDF document text
    • http://savavaze.pbworks.com/w/file/fetch/144459990/gumez.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b5ad3f02-88c1-4db1-8a4d-44d7ac82ec0a/pizorajimavetipuvap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/32c35fd2-3f2d-465d-bbdc-0ca6f569c955/danby_ddr050bgwdb_50_pint_dehumidifier_reviews.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dff3d3df-2a81-4054-9102-f25f329f6854/the_initiative_studio_new_game.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb5ad27f-86ab-446b-aef5-b22f5eb3996f/punigerutomezawowitexute.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/549caf6c-3d17-46fd-9854-521a31ce3afa/allworx_voicemail_password.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

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cf09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF09 5508 bytes
SHA-256: 7c6255a27f3731feda4ce9fbc12ee382041e5be995dd7eff408d3e44fd6dfd10
font_01_sfnt_off0000e1be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1BE 10496 bytes
SHA-256: a71fcb552112e08a7bd80649c3065148d54ed7f43481863a1e63e89c8db01158

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