Malicious PDF — malware analysis report

Static analysis result for SHA-256 49e2dba91f12a1c4…

MALICIOUS

PDF

74.4 KB Created: 2020-12-17 04:44:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 29eca0323b14076fe08bf94554938001 SHA-1: d7a280cc5a41500f9cf86d1fe262f9919f1103f7 SHA-256: 49e2dba91f12a1c4ffd4ff2bd976e0fc0b59fb17c94889e1192542cad293a63f
96 Risk Score

Malware Insights

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

The PDF file contains a URL that leads to a phishing site, disguised as instructions for a security light. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest a phishing lure, likely intended to download a second-stage payload.

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://trafftec.ru/strik?utm_term=defiant+180+degree+white+led+motion+outdoor+security+light+instructions
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/bufexa/movie_annabelle_comes_home_dual_audio.pdf
    • https://static1.squarespace.com/static/5fc7a84402915d4a16f9ca82/t/5fcacb4186731162b26e72b5/1607125826049/703410049.pdf
    • https://s3.amazonaws.com/bevarolimesale/fannie_mae_condo_ltv_guidelines.pdf
    • https://s3.amazonaws.com/sezebepit/ceros_dan_batozar.pdf
    • https://s3.amazonaws.com/vitelitubovuluj/tri_state_coach_midway_to_highland.pdf
    • https://static1.squarespace.com/static/5fc4ff17f9866f3fd2ee401e/t/5fcf52bd68c18617d40f6411/1607422658962/53668581214.pdf
    • https://static1.squarespace.com/static/5fc0eb456b97992eb55c2a22/t/5fca52b9ac031d3c8e8a3f64/1607094969389/58871731541.pdf
    • https://s3.amazonaws.com/legenapi/uga_chemistry_building.pdf
    • https://s3.amazonaws.com/wilugugo/95964209923.pdf
    • https://s3.amazonaws.com/tesotiwapax/41385968056.pdf
    • https://static1.squarespace.com/static/5fc5303b8ef7301f8b2cf6bd/t/5fc71cce8f07963615736fc6/1606884566473/rechargeable_fan_amazon_uk.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e305.bin
44036f83052598676becb2fa0c7f961bbd73c35cdd77496d5f73e65d31107c80		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE305 6016 bytes
font_01_sfnt_off0000f77d.bin
018fe2636fc5d6c7a38c524a9182e6e719df65c968302d4d9eb27dae46ded110		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF77D 10756 bytes

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