Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f4e0514c4cb1c14…

MALICIOUS

PDF

88.4 KB Created: 2021-07-13 11:53:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 2d9d1aa034e35bd400a6fb58b00e93d8 SHA-1: b4b20fb8e99d3140699adf91f16981bbfc663dc5 SHA-256: 2f4e0514c4cb1c14a7a3397ad87d0e579ef6e6abc3fcf5b3f321329a56708f9c
74 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with a phishing and trojan detection. It contains an embedded URI pointing to a suspicious domain, likely intended to trick the user into downloading a malicious file. The presence of a "download" button heuristic further supports a phishing lure. No scripts were extracted, but the overall pattern suggests a phishing attempt via a malicious PDF.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3604

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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://crewmak.ru/square?utm_term=how+to+change+pdf+to+ms+word
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ec791ec217102653d51204/1626110238476/9510440833.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ecb4a83c961a3b2c5ab7e3/1626125480154/red_ball_2_game.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e8edc8025aa46e30d058a5/1625877960298/summary_of_text_online.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60ed2d32493b4338208ab814/1626156339105/ark_local_multiplayer_xbox_one.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e3f3.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE3F3 16792 bytes
font_01_sfnt_off0000fc05.bin
400cca7e0875e7f19e336bbcc7b30178a94a63d056345ff32f99dcae0ec3362f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFC05 16556 bytes
font_02_sfnt_off000126c3.bin
fcca37035df06e555c2991ff65faa0e8497ca6423bee408ebc46b3aef925b516		 pdf-font-stream PDF embedded font (sfnt) at offset 0x126C3 16144 bytes
font_03_sfnt_off00013c43.bin
075e90ae9d5d8f063098315ffe24c8ae70cd3a7f2ec13e55eb74643f19c85673		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13C43 11008 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.