Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f7720c8a681df20…

MALICIOUS

PDF

75.0 KB Created: 2021-04-01 00:16:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 9d800258bae43cf510c9edeebd5a819e SHA-1: 96e1f27497a63b4666118ca7c188b833b1132165 SHA-256: 3f7720c8a681df20a4b6f0cb448d006ec55ef9e32b738a4b65234c65d3ddae51
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://fokemale.ru/strik?utm_term=coleman+generators+near+me PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4415944/normal_5feb0c549e51f.pdfIn PDF document text
    • https://cdn.sqhk.co/lojosewude/geijvhf/lajisozemotexavipebive.pdfIn PDF document text
    • https://cdn.sqhk.co/gabironero/fiacugf/fogulavikuvopu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488137/normal_5fd9aeeb61a59.pdfIn PDF document text
    • https://cdn.sqhk.co/zixifazod/jfpyjiN/muxaxulazivemabijuwipi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372987/normal_604a39b18cce4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383797/normal_60207c8e30fe1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4530578/normal_6021d042dada4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365621/normal_60473acb3cf49.pdfIn PDF document text
    • https://cdn.sqhk.co/wafepazi/jfgiQoV/74177921589.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450042/normal_5fdf9fd0501a6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417208/normal_5ff8c45260d58.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391340/normal_605619e734af7.pdfIn PDF document text
    • https://cdn.sqhk.co/velujuvaxal/iBqihhi/zumujozikadakiwo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418783/normal_60135cb18dcdd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409110/normal_6036a4926927a.pdfIn PDF document text
    • http://lifolibi.sportsontheweb.net/24310775027.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/3342188f-1c4d-4268-8e8c-5f2ebaf0db87/buperuxoderirozo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a055fd98-1b2f-49e7-b9d7-05d797c3d282/81600594062.pdfIn PDF document text
    • http://doritiwenoxa.onlinewebshop.net/conduction_of_heat_in_solids.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/11e83079-3e3f-43b5-820b-86422201cb03/22025693978.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2091c416-d2d9-4a5e-853b-085fd9e27f16/the_negative_ansel_adams_photography.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_off0000e8a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8A7 4908 bytes
SHA-256: dc28c2f9d99d12bc41718923849a7d6ec9b7aa812c43ad3dc200755fbb11a737
font_01_sfnt_off0000f938.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF938 10940 bytes
SHA-256: d24e1e0f321b4569b7523064b914c8761cd3203c7c7eb9f78ca1d8e1685c7fc3

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