Malicious PDF — malware analysis report

Static analysis result for SHA-256 5208c2fa2006edfc…

MALICIOUS

PDF

205.2 KB Created: 2021-07-17 19:23:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: f304acb0bc1c79fa25cb9eaa7d066a5a SHA-1: 069c7fca18488b5bad61232536240dd5f6397b4e SHA-256: 5208c2fa2006edfcfc68ee6e480bc7aafcd6c4b7eb2e3a1c75740c8be9b68124
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document exhibits characteristics of an advance-fee scam, employing lures related to lotteries and prize money, coupled with demands for parcel delivery. While no scripts were extracted, the presence of embedded URLs and the ML classifier's flagging suggest a malicious intent to deceive the user. The document's structure and content align with phishing tactics, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5808

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://feedproxy.google.com/~r/sq/ugae/~3/u8n3KCQdUYc/square?utm_term=science+of+the+heart+pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f1fc4da7741909b3129d42/1626471501604/lindsay_meadows_homes_for_sale.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60effb70bba06d2f34187597/1626340208306/burnin_rubber_4_download_free.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60e937fd2dabf272355526a5/1625896957543/jamefoledadodilu.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f08e57216bfe27f04bb763/1626377815777/clo2_oxidation_number.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e7bbbc6d117d6eeca2a9a6/1625799612485/73399924244.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://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002c91f.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C91F 16792 bytes
font_01_sfnt_off0002e136.bin
a2c550ee526cb329db482969e30d9e5733ea010452044b358c21ab255d09e7ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2E136 10576 bytes
font_02_sfnt_off0002f942.bin
e02ee212d009eba656d7f3b6fadd7a1440bbd75a4c9baff3a3f9dc869562e478		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2F942 18344 bytes

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