Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f287f1cd747c184…

MALICIOUS

PDF

172.7 KB Created: 2021-06-18 01:52:16 +03:00 Authoring application: mPDF 7.1.0 First seen: 2023-12-06
MD5: dd3cbca200d943347173718acca2b1d6 SHA-1: a2e000a81fb19845cbf864a0e0dd44ceebb6939b SHA-256: 2f287f1cd747c184e94c0dfe01eeb55b17c5836f4078d092921e94479190879d
80 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0004

Heuristics 5

  • Secondary embedded PDF body has suspicious static findings critical POLYGLOT_CHILD_PDF_STATIC_TRIAGE
    A valid PDF body was found at a nonzero offset inside another container and its carved contents matched PDF exploit or lure heuristics. This catches polyglots where the top-level magic routes to ZIP/OLE while a PDF reader or downstream parser opens the hidden PDF payload.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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
  • 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 http://srwt.ru/pdf/caodc PDF link annotation
    • http://buyapension.com/7strategy/multichem/assets/fck_upload_files/image/bosch-installer-manuals.xmlIn PDF document text
    • http://impressions-art.com/userfiles/bosch-integra-dishwasher-installation-manual.xmlIn PDF document text
    • http://buyapension.com/7strategy/multichem/assets/fck_upload_files/image/bosch-installer-manuIn PDF document text
    • http://ns.adobe.com/xap/1.0/In 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://dejavu.sourceforge.netIn extracted file (stream_009_off000077ba.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (stream_009_off000077ba.bin)
🗂 Part of campaign: secureserver.net 1471 samples

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_009_off000077ba.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x77BA 20040 bytes
SHA-256: f74ee16628f0d619351c153107c4fbfa7a2dc2cf01b01b228cedc75a53622b4b
font_01_sfnt_off0000adb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xADB9 19964 bytes
SHA-256: 5154a7c8cf7a9b55c2f939ad6a4a8f8327cd6552b9f68a87c49d10dfc747eaa8
polyglot_child_pdf_off0000000f.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0xF 176788 bytes
SHA-256: 7bae862a5c7314f4b849a49b7dedee2acfb3d92e3ac1c7ce98aa75608b1c4e30
polyglot_child_pdf_off0000001e.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0x1E 176773 bytes
SHA-256: 32335c51ef36cbfb1d41f91651a33c720255d7829cbb30288ab495206bc8cf2f
polyglot_child_pdf_off0000002d.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0x2D 176758 bytes
SHA-256: 53d7a0232dd22a2c61ab504b1d583e58111fadc7a09ba0c6dd369be201d06644
polyglot_child_pdf_off0000003c.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0x3C 176743 bytes
SHA-256: 0e3e6fbe58df839097d642aec8da2a6235960590ed29fa1af58f6ae959ffd406

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