Malicious PDF — malware analysis report

Static analysis result for SHA-256 35f68e6c7ea2cb76…

MALICIOUS

PDF

66.1 KB Created: 2020-11-19 22:43:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 9a8dd9bd772bb84c38604cf7ff9205af SHA-1: 9cfb92170878a803e4f3c07b74c489d95c45423e SHA-256: 35f68e6c7ea2cb769284e48a10fe8768dcfd6dd6b6d961d4c24776a2a72870e1
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file was detected as malicious by a ClamAV signature and an ML classifier, indicating a high likelihood of malicious intent. The embedded URL `https://trafffe.ru/123?utm_term=parallel+space+apk+mod` suggests a phishing or malware distribution lure, likely related to 'parallel space apk mod'. While no scripts were explicitly extracted, the PDF structure and embedded URI heuristic point towards an attempt to redirect the user to a potentially harmful external resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://trafffe.ru/123?utm_term=parallel+space+apk+mod PDF link annotation
    • https://wakutoji.weebly.com/uploads/1/3/4/3/134314583/5d4a5b1378.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381539/normal_5f905bc8cab7d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407813/normal_5fa0f1fb0ddf3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382953/normal_5f936b626f0cd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376087/normal_5f8b735485409.pdfIn PDF document text
    • https://jedarixires.weebly.com/uploads/1/3/0/9/130969076/050b31e8985f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4498986/normal_5fad2c4ad728b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420756/normal_5faae5816ea5f.pdfIn PDF document text
    • https://joxuripuziw.weebly.com/uploads/1/3/4/2/134266010/4988769.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378846/normal_5fadfc43abdc5.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/05ba4a5f-0866-459e-95ec-b5a48c6f31b2/jedi_guardian_focus_pvp_build.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f4b92257-18ab-4e60-ae92-fc352f9098ee/fitifugejilenikeju.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b52cb3f5-4d63-4433-a0be-a5eb2c0c092c/adverbs_of_time_worksheets_for_grade.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7da5a033-6f95-43a7-b3a6-a00f2ffe3344/garmin_delta_xc_operating_manual.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_off0000c582.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC582 5284 bytes
SHA-256: f37e35c4c591fd388d0c67efc5715af5c5698089a55251f52b0a14e3bc894f72
font_01_sfnt_off0000d762.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD762 10176 bytes
SHA-256: 3d4230904d63df65fed968745c7e0d19dbb6b585e787f1b3d7b15503d3dadc73

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