Malicious PDF — malware analysis report

Static analysis result for SHA-256 22eb9245d4106e8f…

MALICIOUS

PDF

75.8 KB Created: 2021-01-24 03:49:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 23700d9fdcf4d732ae2b135a56bce3e7 SHA-1: 234d1cf71a083f577188f99293f9512f2ddbac4d SHA-256: 22eb9245d4106e8fc8dca2a0b518a6276b85e8b6fd86e8683e8819e0bd1d052d
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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffine.ru/aws?utm_term=crystal+reports+trial+version+product+key PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4485572/normal_5fe990593366a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455179/normal_5ff2293120e89.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459182/normal_5ff07fdd95ad4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426813/normal_5fd8d68ac22b1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385436/normal_5feb4db12e50f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418973/normal_5fc9f6ffb3a49.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408004/normal_5ff87dc00f9fe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443372/normal_5ff3d42985cbd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447431/normal_5fc8667be9fe8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392660/normal_600ca9d337a6d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375339/normal_5ff1fc5e674d9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454670/normal_5fc7b96c815d0.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/posufij/allstate_my_benefits_claim_forms.pdfIn PDF document text
    • https://s3.amazonaws.com/venunamazozuzo/beduw.pdfIn PDF document text
    • https://s3.amazonaws.com/fojaxexino/linear_algebra_2_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/bededuxotulapil/shadowing_let_s_speak_japanese_english.pdfIn PDF document text
    • https://s3.amazonaws.com/jozetej/85946831520.pdfIn PDF document text
    • https://s3.amazonaws.com/gimisorixosu/amman_album_song.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_off0000eb8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB8E 5196 bytes
SHA-256: 00f26c22e553a5935e36a73950bb1b95d6d2558c50082296e53873aa803ab3ed
font_01_sfnt_off0000fd58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD58 10820 bytes
SHA-256: 7172d2e3ac78e6baf651625bf9547abe95ded36f04ed4796a63360bdf3c530d2

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