Malicious PDF — malware analysis report

Static analysis result for SHA-256 c61b07b9d8575489…

MALICIOUS

PDF

65.9 KB Created: 2020-12-17 02:20:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c75ae812239cf34535a6912546f603c7 SHA-1: 5cb59aee5d132c08c9c22949de0affbad49d65cb SHA-256: c61b07b9d8575489e34e37e25da86b8474f7fa71b56dbefc37ec0ca0ef0f7448
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document is classified as malicious and exhibits characteristics of an advance-fee scam. It contains numerous external links, with one pointing to 'traffking.ru', suggesting a potential phishing or malicious redirection attempt. The document's structure and content align with common advance-fee fraud schemes, aiming to trick users into believing they are due a prize or parcel. No scripts were extracted, but the presence of external links and the nature of the scam lure indicate a high likelihood of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://traffking.ru/strik?utm_term=life+in+the+english+colonies
    • https://fimozafovobas.weebly.com/uploads/1/3/2/7/132741130/tumoza_lowarudufe_xasovuleminoni.pdf
    • https://zowupenejanelaw.weebly.com/uploads/1/3/4/3/134397621/meligu-wonemomin-rusujavu-rekemomazo.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/61f642b8-69e9-4cee-ba40-d47d251f61c0/23420398695.pdf
    • https://s3.amazonaws.com/sabegokek/ios_apk_downloader.pdf
    • https://uploads.strikinglycdn.com/files/b2fb1caa-1e98-4bc2-9afa-4dec4931756d/rixup.pdf
    • https://uploads.strikinglycdn.com/files/4275ae27-1f79-4dfc-8cef-e62932db0725/nofisifu.pdf
    • https://uploads.strikinglycdn.com/files/a6cb13f9-22bc-401f-9535-6d607c4b6b8e/46564101598.pdf
    • https://uploads.strikinglycdn.com/files/278bc118-3169-42cd-86c1-4effae075a3d/electrical_conduction_pathway_of_the_heart_diagram.pdf
    • https://uploads.strikinglycdn.com/files/6a2dbdd8-47af-42e0-9bbe-53c987d99dcb/narajifetodunotuta.pdf
    • https://static1.squarespace.com/static/5fc5c5aef7cf8c75404c2941/t/5fd69207481cfa31adcf5cff/1607897607318/kixipoxupojujif.pdf
    • https://uploads.strikinglycdn.com/files/b06ebf74-8af1-4ddb-bf5b-474ae00f78fa/61889319785.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c6c6.bin
dfea2f6089090f01c7df5b49b0ae53712cc2222af88067f60756600574a988eb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC6C6 4780 bytes
font_01_sfnt_off0000d71f.bin
b3230a4a8cd30b7f2041a7ccc9afa1d432ed16957baab9ee3b3cdd8b4c57a1f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD71F 10664 bytes

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