Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd984e27db2b31af…

MALICIOUS

PDF

33.3 KB Created: 2021-07-06 20:34:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: afadee6d6a8e415078d1e8abd8a8392d SHA-1: 1153d536c38967770f1ed97e0375673f910f3820 SHA-256: fd984e27db2b31aff1df4a64f004948ada2bdd20bc0cebb1cb8f6f514aaf1540
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains a lure related to hacking popular games, directing users to a URL that likely hosts a malicious payload. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded URLs and a download button lure further support a malicious intent. No scripts were extracted from this sample, but the overall pattern suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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.tw/app/406889139/best-way-to-hack-coin-master-game-hack PDF link annotation
    • http://lib.untad.ac.id/repository/how-to-hack-in-roblox-mad-games_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/free-spins-for-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/free-realistic-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/wwwhacktoolcom-freedownload-roblox_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/free-stuff-in-roblox-catalog-2021_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/coin-master-spins-free-2021_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/vortexx-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/coin-master-hack-no-survey-or-verification_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/how-to-hack-roblox-accounts-on-phone_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/adidas-roblox-shirt-free_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/coin-master_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/minecraft-hack-app_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/www-claim-gg-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/cheat-codes-for-call-of-roblox_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/free-spin-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/free-robux-24-02-2021_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/how-to-install-hacks-to-roblox_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/my-roblox-avatar_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/roblox-exploit-2021-free_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002cd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CD4 22340 bytes
SHA-256: b7cd37f73c345381fcb6383b65d0218a645955c6df4250c47807d989c985b862
font_01_sfnt_off00005e6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E6E 18600 bytes
SHA-256: 795bb7b67d1be391f10a55ce85078e04cbbe49810cfe5cd34154fe0b18fb34e0