Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d79498ce7c49c15…

MALICIOUS

PDF

60.1 KB Created: 2020-12-23 00:37:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 777c10cbb4f02857f026923a88c34f3b SHA-1: 9151ca24dbe51b883f61972ab3266d03a115d128 SHA-256: 7d79498ce7c49c151781ea3838d09332df8024165fcdc5eda99d643e4c9f6d14
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains embedded links that redirect to a known malicious domain, traffmen.ru. The document body, though heavily obfuscated, appears to be related to song lyrics, suggesting a lure to entice users to click the malicious link. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware delivery.

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://traffmen.ru/aws?utm_term=holy+and+anointed+one+lyrics+pdf In PDF document text
    • https://xibogunef.weebly.com/uploads/1/3/1/3/131398295/1eba5b788e8ab8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405904/normal_5fd2c12b19f46.pdfIn PDF document text
    • https://kuginipa.weebly.com/uploads/1/3/4/8/134853520/fejixoxebazaf_tuxefotur.pdfIn PDF document text
    • https://nagifinapu.weebly.com/uploads/1/3/2/6/132696111/327df.pdfIn PDF document text
    • https://nolutoxut.weebly.com/uploads/1/3/4/6/134683805/9261765.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408174/normal_5fab954a9326e.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/feb9ce31-9c36-4f2b-b4bd-e1f938a261d0/juregufetipo.pdfIn PDF document text
    • https://s3.amazonaws.com/bikikanafopavu/nobodojule.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/452f9d2e-629f-440b-b882-0bd73f5416b4/rojulowiwatebenaboruzaw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4aca0945-1cb7-4f4c-ba59-ba19a0c146b8/zipisuxovin.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/872d31f6-b7bc-4581-a030-6c502fc2d2d6/74347370894.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d7ee8ffd-698f-4d65-b5df-5f71a039daec/10889853344.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1fe6662e-6078-4825-b219-fb78dc98056a/how_to_do_soapstone.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ff440594-7c21-4c08-9a51-39dfcf903c9e/35349976209.pdfIn PDF document text
    • https://s3.amazonaws.com/zumezeviwakiz/31772689133.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_off0000ad13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAD13 5212 bytes
SHA-256: 7a731c56fee5dcd33fe73200a242730654aa115f5962e9cf2db163abe5f5be78
font_01_sfnt_off0000bee5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBEE5 11692 bytes
SHA-256: 199cf1286ba0da733f02aebab50f02ad4f7d3abd4e09a7d258c07fe93ab17c07

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