Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a1c0596661c83be…

MALICIOUS

PDF

80.4 KB Created: 2021-05-30 22:44:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: e033b442400a8e8b572064a365f1f84c SHA-1: af4e6bd28460f859e73a8bf66faa62203490a62c SHA-256: 4a1c0596661c83be0b8fab9ac5540737f1b73ac01b668111a6f0f7ec6795f0e7
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-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://ponafet.ru/strik?utm_term=autumn+leaves+classical+guitar+tab+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4491688/normal_605d9775b3b27.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478926/normal_5fcd694443906.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407986/normal_601392e48c778.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369779/normal_5fff46986f11c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409628/normal_60240da7bef09.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379054/normal_6040da3253b59.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378390/normal_600cc7bb5a18b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457561/normal_5ff070696b02f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384026/normal_603009410241b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366040/normal_5fe81b84e01d7.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/55af305a-ac19-437b-b30e-e60068b26b15/50426605424.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c97f6904-38ec-4ded-8689-5fbb8653e118/2001_subaru_outback_mpg.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fb5896c6-4ada-4f60-bb46-e8209ac71874/joseph_prince_sermon_notes_on_tithing.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/153d83c5-a02b-486b-a18a-848639799f98/8453513927.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/230659be-a2ab-4326-bc4b-80bc245ad778/zatumavunudifof.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d358d94-b906-49bc-966f-a2bdb3ac51d6/23848885854.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4f11f4e1-da85-4f10-8255-d02415e35c4a/16567702914.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/837cf7e6-6e2f-4e39-aa8e-e1b3053668ea/19145595763.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e7d5e30f-4f82-47cf-a395-32084de88ae1/ximuxutu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8dc93706-c3e8-4926-90cc-647b39ed1420/are_french_door_refrigerators_reliable.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f9a01518-1461-4a2b-92aa-1d1ff3b56805/vepitewimesagunokabig.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 6

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000edf3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDF3 5664 bytes
SHA-256: 7f2bb588a30863ff279636f74edf53bcf275517fb9781ab5d32ce34a7e9e5513
font_01_sfnt_off0001011a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1011A 3020 bytes
SHA-256: 52525c54889d3706ba715c32fd680f2fbb23dd2e45d43cafb20371fc68b0a45f
font_02_sfnt_off00010d56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D56 11284 bytes
SHA-256: a68a962507e684f4b638c245ccdbdca753a53da3c55362646f992d34cd4c17fc

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