Malicious PDF — malware analysis report

Static analysis result for SHA-256 c11fd7ec4c003d01…

MALICIOUS

PDF

82.2 KB Created: 2021-03-21 07:41:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 1e5a0dd321bad8f9e0c9beca2485d254 SHA-1: 9a89bdfe4be9fa84598a6f721bb33862507d1eed SHA-256: c11fd7ec4c003d011c6ceb1e5023778a5c6e98094e7d6224951aa18fe6ba076f
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://jacksth.ru/strik?utm_term=proform+585+qs+treadmill+review PDF link annotation
    • http://pycnidwzxc.info/bimukukujovupavepzokhk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450250/normal_6010cb42cf18d.pdfIn PDF document text
    • http://idealica-ufficiale.site/masters_degree_in_health_economicspd2rt.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402737/normal_600c7d5294f02.pdfIn PDF document text
    • http://naturaleone.space/dupadamed92hnk.pdfIn PDF document text
    • http://prodson.space/8893781566gmh36.pdfIn PDF document text
    • http://alania365.ru/xurawugedumoukq13.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/zasepo/44587017152.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0f717ab2-79f1-40d1-b33d-229886847171/vermont_castings_radiance_gas_stove_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c83917bf-a10d-4456-a8a2-179b4df521ef/old_navy_canada_online_shopping.pdfIn PDF document text
    • https://s3.amazonaws.com/pekatikisuruki/the_walking_dead_graphic_novel_set.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/68f4ba5a-82cd-4968-9253-e5d556ae481d/fish_philosophy_book.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwisigetizoxif/88871852557.pdfIn PDF document text
    • https://s3.amazonaws.com/radubozufiwo/lorum.pdfIn PDF document text
    • https://4868a29a-6d77-448d-a9c5-bc5c6a1713c3.filesusr.com/ugd/060e50_ad0013d5ebe94e1fa572e01d66775f00.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/50d8312b-bff7-43e4-ba56-c71794f496dc/pearson_edexcel_a_level_biology_textbook_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6aa69c47-2559-4646-aa80-9e6c7c8d33c5/7880603412.pdfIn PDF document text
    • https://s3.amazonaws.com/poguvelefa/nirusofiribijijuteloduj.pdfIn PDF document text
    • https://8319d365-0190-44ee-b2f3-e76f6fd230eb.filesusr.com/ugd/112488_2d40b92c39a349a9998974e41d535df0.pdf?index=trueIn 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 7

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_off0000ff68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF68 5652 bytes
SHA-256: 03d70d3ff35036eb7dc3e63d9f55236729f316756ba61cdab55d4ec76fb94916
font_01_sfnt_off0001129d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1129D 11580 bytes
SHA-256: 350baa63a6920afe1383f6f3fd80f1a54f7bf6469f26b75cda3729627e962c68

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