Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f608326e2949007…

MALICIOUS

PDF

70.2 KB Created: 2020-11-18 19:08:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: d48757c4857757cd712ca9f726970072 SHA-1: b90b0503604f7a3a26cb862d08dbdd9a58edab87 SHA-256: 6f608326e2949007c4afaaf3adcffe2985791700197dd6feb8a07eb81799b706
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URL pointing to 'trafficel.ru', which is likely part of a phishing or malware distribution scheme. Although the document body is heavily obfuscated, the presence of the URL and the detection signatures suggest a phishing attempt disguised as a game walkthrough.

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://trafficel.ru/123?utm_term=pokemon+blue+walkthrough+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4450257/normal_5fa8bd7357d74.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388063/normal_5f8e11e3d8de6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374175/normal_5f9727fed3eda.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379236/normal_5faea66139c57.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478146/normal_5fa6c432138a3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369901/normal_5f8af8d71e2c0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373986/normal_5f90d96c1fd83.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382972/normal_5f9f3728c7fa0.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/7aa9c747-a293-4332-ab41-8dc162b950f7/rijavulug.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c0c2e8f2-cb35-41f0-a9e0-381921737d34/white_pages_in_williamsburg_va.pdfIn PDF document text
    • https://s3.amazonaws.com/wizidimawag/pezesa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f404153c-4071-4f1b-bf07-21e0c4439ff0/waromepinamodejilu.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_off0000c7fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7FA 5408 bytes
SHA-256: 8c0d954ee53e4d3d0a324eb6a449e0fffa24e7c9ef63c2ccfb5c36ee48174ba7
font_01_sfnt_off0000da3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA3A 10500 bytes
SHA-256: 8d780c96595cd7d3d163c4c6c21030a5912a8c581b5bf668ad78c02c22fea9ac
font_02_sfnt_off0000fdfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDFC 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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