Malicious PDF — malware analysis report

Static analysis result for SHA-256 de4071a86213f4b8…

MALICIOUS

PDF

309.7 KB Created: 2020-12-18 17:20:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 09bee5e3e35766aa65ffcffb97cdfd37 SHA-1: 9d104c2f443f903070293cf320e4511e8fed6b57 SHA-256: de4071a86213f4b84bbc3a34ca7026153c570fbe5baf3064bbad9ec0deac7f8c
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 0.9970

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://trafffe.ru/strik?utm_term=memphis+shades+batwing+fairing+stereo PDF link annotation
    • https://nilijinaxobizag.weebly.com/uploads/1/3/4/3/134356504/sasapevomipukar.pdfIn PDF document text
    • https://rudofodirofebas.weebly.com/uploads/1/3/0/7/130739781/sanepasatugagalati.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420761/normal_5fa0ba2024da4.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/d751ce81-a294-44d1-9c4a-ac0946065166/best_pci_wifi_card_for_desktop.pdfIn PDF document text
    • https://s3.amazonaws.com/venunamazozuzo/mumozovabexudi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a475de2f-1aa7-4674-a49d-1949839f54df/18319430456.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ebc3bbb3-ecad-4e07-89f4-5ac16b08cf1c/java_8_collection.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/91836c69-5477-42b8-97a8-726d96390ecb/pdf_el_mundo_de_sofia.pdfIn PDF document text
    • https://s3.amazonaws.com/bikikanafopavu/xavugo.pdfIn PDF document text
    • https://s3.amazonaws.com/vidadaviwal/1600484056.pdfIn PDF document text
    • https://s3.amazonaws.com/fajeloninesitel/78308014419.pdfIn PDF document text
    • https://s3.amazonaws.com/supefujoxopubu/alter_ego_nollywood_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/biblia_reina_valera_1960_espaol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/751b6c79-9a09-42d7-a9bc-128a5138dca9/new_britain_high_school_graduation_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxawetawupo/50537677804.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxenipup/anabolicos_efectos_secundarios.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_off00048e3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48E3B 5660 bytes
SHA-256: 9f7be0f897af9a52c27908f86b9a272baba47dd12083a497a78d7d963fe8f4ff
font_01_sfnt_off0004a167.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A167 11564 bytes
SHA-256: 59c7a273a5f58e9e055c54ed197055bf744fc39f6b4ba32a55456657baa10bb9

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