Malicious PDF — malware analysis report

Static analysis result for SHA-256 392e0b0f09dd7eea…

MALICIOUS

PDF

34.4 KB Created: 2021-06-26 13:53:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: a7ac3f8bf1565798a84da0db7523afc4 SHA-1: acea4fee6c9c73b947f18cb1e26b1119128404d0 SHA-256: 392e0b0f09dd7eea58d4ae07c3ecbc596d57669a38e2ee8583e7151294eb479f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The document body and embedded URLs indicate a lure for free in-game currency, likely to trick users into downloading malware. The ML classifier strongly flagged this PDF as malicious, and the presence of a download button lure and password archive instructions further support a malicious intent. The primary IOC is the URL http://netcdn.co/app/431946152/how-to-get-free-robux-on-ipad-no-password-game-hack, which likely hosts the malicious payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://netcdn.co/app/431946152/how-to-get-free-robux-on-ipad-no-password-game-hack PDF link annotation
    • http://library.patria-artha.ac.id/repository/roblox-hack-apk-download_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-robux-offers_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-free-robux_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-robux-no-apps_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/pokemon-go-no-free-box_GM1094591345.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/coin-master-time-hack_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/coin-master-hack-apk-with-fb-login-2021_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-roblox-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/cheat-sur-roblox_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/how-to-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/coin-master-free-cards-2021_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/minecraft-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/robux-hack-me_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/bit-ly-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/roblox-speed-hack_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-robux-instantly-no-verification_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/roblox-earn-robux_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/is-the-roblox-app-free_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F70 21976 bytes
SHA-256: 1998621a0f6aad429c3e77810707439549226cd17669ce92af8a35b880c7b9c4
font_01_sfnt_off0000601e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x601E 19488 bytes
SHA-256: 66475b475020a350f83a999d4a27aa78afcc5fa5df2304498396358e5c1165e7

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