Malicious PDF — malware analysis report

Static analysis result for SHA-256 560eedaa9a067d4f…

MALICIOUS

PDF

74.0 KB Created: 2021-04-10 21:49:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 980bd19cc62d134e6b568c8727db17ef SHA-1: 708cc1ee1c790ae7ba879a45d042a0da8af996af SHA-256: 560eedaa9a067d4f08c35fe1c8aca9447ab7cdfd8cc79c6184b54b75f12ee71e
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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=how+to+report+statistics+from+spss PDF link annotation
    • https://wisukasef.weebly.com/uploads/1/3/1/4/131453855/1633291.pdfIn PDF document text
    • https://degitetebumike.weebly.com/uploads/1/3/1/8/131857056/a32975005e2c96.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496225/normal_5fc8263f82022.pdfIn PDF document text
    • https://nuwuzeparagagux.weebly.com/uploads/1/3/4/8/134883197/4c4b7f9daea6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478932/normal_60010efb565c1.pdfIn PDF document text
    • https://femukigiterabe.weebly.com/uploads/1/3/2/7/132740239/fafowe.pdfIn PDF document text
    • http://nofipozi.22web.org/guia_acuerdo_286_bachillerato_2020.pdfIn PDF document text
    • https://gijagexerifaru.weebly.com/uploads/1/3/5/3/135322880/diduvobeti_lanujitop_kilomus.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408172/normal_5fce188f0c98c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481156/normal_601b003370854.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/815cf6ce-8dab-4b06-ba0b-9e578b437083/61578528093.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/631fbd73-0657-4fd6-8cf3-16fe8c1a29a2/bimebabidax.pdfIn PDF document text
    • https://2eeb51df-07ba-4372-80d9-1ef4646fc7f7.filesusr.com/ugd/6af210_9f0082a438a14f59b070a9310e99472a.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/2af472b8-0866-418e-9173-94ad73850cbd/lafudapozisedilowexagupu.pdfIn PDF document text
    • https://4be8a7ba-6c9a-47a4-99fc-a5961b41a404.filesusr.com/ugd/132250_7fd920bf10e84914914c523b37cb0bcc.pdf?index=trueIn PDF document text
    • http://xaminelabiz.epizy.com/mental_abacus_training.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/36b4ab9e-4af7-4515-8b6f-34827f372518/34895147094.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e34fcfd-98c5-4d91-b76d-bcdb9b89a40d/epson_v600_review_youtube.pdfIn PDF document text
    • http://mapesag.epizy.com/69160878151.pdfIn PDF document text
    • http://sakuvutupozil.rf.gd/chemistry_notes_for_class_12_state_board.pdfIn PDF document text
    • https://ba428ff1-d53d-4eb5-bdb2-cc960067f420.filesusr.com/ugd/7041e4_4d2468df72b04326a9d36b98f7f13eec.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e4ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4AD 5184 bytes
SHA-256: 6c0ffc0b529ee7ccc92c6dd7cc08eed9199930308f65af7b6ffe6fda3a2b1bf8
font_01_sfnt_off0000f648.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF648 10684 bytes
SHA-256: 403fe2be83bf52216d454a9d8076bd52b7de51aaffa44aa6296353f99df16174

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