Malicious PDF — malware analysis report

Static analysis result for SHA-256 c114768d20707288…

MALICIOUS

PDF

65.2 KB Created: 2020-12-07 18:55:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 4ecd0406791b4ec0341c2f903ec0381c SHA-1: ddd7b09d30c57e09b8ff361564dcf58a731bce6d SHA-256: c114768d2070728826d40bcebeb1d471e4ca24de7c29435cb864921c5ea13ebc
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://traffset.ru/123?utm_term=root+apk+android+8.1 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4374024/normal_5fa1a636876c6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450045/normal_5fbdd368bc140.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374980/normal_5fa922cc40f67.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc1162b68612547ed5f39f0/t/5fc44ee73485235c864f8f74/1606700775087/73598025441.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbfe895e5c7695ca99606f9/t/5fc3cd64173fb5383b179710/1606667620705/41068883445.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/928b54b5-cca4-47c4-a7b7-9316ad4ee7a7/vamilisigu.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcf5602c6de34c7a382c04/1606219106755/30816472616.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5227e085bf90c0e189f60/t/5fc69f883f75b16643bd7235/1606852489205/super_mario_games_free_download_for_android_apk.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0de27085bf90c0efce9ba/t/5fc1573418e72e5fdb0984c2/1606506292104/bobeloxe.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0d4086b97992eb55bb7f9/t/5fc11cf9a97599144e1eeb2e/1606491388085/66591324241.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd00221af5bf52c327b691/1606221859686/reluz.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc555ab88c99b6d37c4c7cb/t/5fc9c10a9c93c058c483e486/1607057675742/wapubapivag.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_off0000c7e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7E0 5092 bytes
SHA-256: 62b7b98facdd3c25def5335039fc1ef17544db0f2e8df0d4812fa9d254b91d3b
font_01_sfnt_off0000d949.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD949 9060 bytes
SHA-256: fdc64f6b6b89f592e967ea32131df5a47b5913d77b2cfd54afc7775b46ac865c

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