Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d23328287e180f8…

MALICIOUS

PDF

72.8 KB Created: 2020-12-16 15:14:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 84b5d43485d34249645be158a345c63a SHA-1: 9e6258f19092d0a69de5b3891cd1338d28b1037f SHA-256: 2d23328287e180f872e696fecb9f6e378376ecb748e4d68c1d81fea73c223cf3
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is a PDF document detected as malicious by ClamAV and an ML classifier. It contains an embedded URL pointing to a resource that appears to be related to 'minecraft hacked client', suggesting a phishing or malware distribution lure. The PDF structure itself does not contain executable scripts, but the presence of the malicious URL and the nature of the detection indicate a phishing attempt.

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://trafftec.ru/123?utm_term=minecraft+hacked+client+1.13.2+optifine PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4484375/normal_5fb2b5aa14462.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370767/normal_5fa60c3462e12.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456998/normal_5fd186bd53982.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381546/normal_5fcc2149975df.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465136/normal_5fc2724d64dc4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417413/normal_5fa6e28231b8a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367296/normal_5fce3f46adc9e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384310/normal_5f994c57f150a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407756/normal_5fa211689d6ec.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470832/normal_5fa7475cabd96.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465938/normal_5fa3eb7b64b39.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/zunaporam/youtube_pet_ranch_simulator_codes_2019_july.pdfIn PDF document text
    • https://s3.amazonaws.com/xotorulu/32511147278.pdfIn PDF document text
    • https://s3.amazonaws.com/jemazejodep/15660486901.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1b3c9235-74f2-47e7-b2b4-0860f3ba2ee1/32200895393.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_off0000da4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA4F 5512 bytes
SHA-256: 9e7b927f5943cbad93c827f691acdc3408c2353c123c667bf83a896c2eb34c8e
font_01_sfnt_off0000ed29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED29 12220 bytes
SHA-256: 83cbba45c0b050a447873d95942a1a33ab7fcc7cec0162b89addcbb15f79b59f

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