Malicious PDF — malware analysis report

Static analysis result for SHA-256 fca2e00ffa6520ca…

MALICIOUS

PDF

93.8 KB Created: 2020-11-27 21:44:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 8b7e55d46716a0a00ef748ac073a2e68 SHA-1: 91a42debe6aa7b306a59b0d3f4a3adc6dccd2a6f SHA-256: fca2e00ffa6520ca876df4d1bd618a19bbe7e9bdf404e622dfe58bca528d82b8
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 0.9997

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://traffnew.ru/strik?utm_term=indominus+rex+ark+spawn+command PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4372721/normal_5f8e98e92b36b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370071/normal_5f97be96e3d37.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370309/normal_5f8bbe508bc52.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425926/normal_5fa0b03e2009f.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/gonuxiwela/sea_doo_owners_manual_online.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab88d927-9e29-4181-b303-340fa3468c4d/zatesasibaso.pdfIn PDF document text
    • https://s3.amazonaws.com/joterige/aashto_standard_specifications_for_highway_bridges_17th_edition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ca61063-641b-4cf1-8046-9a5ee6c33e00/fikowuresojazawaw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6bbf3f76-aeec-4a1d-a23a-c724aa566d4a/96918791546.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/123f2f20-a10b-4ab5-a4e4-e5248b885215/61786912258.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2fc6f533-67c5-4021-a1ce-657b734ab20b/wojavodimawiv.pdfIn PDF document text
    • https://s3.amazonaws.com/feseni/ziboxuxelonefenizokezax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/198def7c-d631-4a61-9baf-e829c4a18cb3/97585243532.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_off000130d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x130D2 5348 bytes
SHA-256: 1d88a837c3760e8368ab611adfe2e7b4ba831301eda78350d9d61535d738fd63
font_01_sfnt_off00014301.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14301 11892 bytes
SHA-256: 1bd651eb4e9e89994fb5e83788a1b8eefa2396a7c9d59e509c4dbc10bc3bd52c

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