Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea0d624bd992bcf6…

MALICIOUS

PDF

79.6 KB Created: 2020-11-10 19:10:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: c46d4056daa00ad5983849ab417a8b9f SHA-1: e0473b9d94ac828825019baac4dbcabdb8b4b6b3 SHA-256: ea0d624bd992bcf6102f89417787a496822d5fe85befaf58ad1664444b9ff345
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious URL, likely intended for phishing or malware distribution. The document body, though heavily obfuscated, suggests a lure related to a 'trophy guide', aligning with social engineering tactics.

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/aws?keyword=the+witcher+trophy+guide PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4447253/normal_5fa1a44f1acfc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424985/normal_5f99588d9596c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388274/normal_5f8d870f5e010.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370778/normal_5f9338cd85157.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392215/normal_5f9fd78d49d68.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365655/normal_5f870fd8ea46b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/4aa1dd89-4370-4765-b5b6-34575bcb80dd/kebewegigukevozusu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fd8836f7-68a5-4e32-aa6e-95d6f27dd5d5/42711791885.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3b9fb183-a5f2-4638-a023-c891ebe35293/91159062800.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e4f601ff-096e-4b10-985c-6f9e3db99f48/langrisser_character_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1a1f777c-f58b-435d-9944-1a81ef492f57/38628501400.pdfIn PDF document text
    • https://s3.amazonaws.com/baposivarabuj/tidewefudat.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eeec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEEC 4836 bytes
SHA-256: bbc097425418cf3b4520897c1aba9e4d4645d72f71a364a57cef59117fa3b14f
font_01_sfnt_off0000ff8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF8A 10632 bytes
SHA-256: e624c36eb272623f6a1c8908118dc65126b9f8e3a9d1deb62510f767cd42b5c6
font_02_sfnt_off000123b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x123B9 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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