Malicious PDF — malware analysis report

Static analysis result for SHA-256 4182d13f1bd90d9c…

MALICIOUS

PDF

35.6 KB Created: 2021-06-30 03:09:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: e2ae1550a9e93937dd3fcd12146a4353 SHA-1: 2dbcaa9a04efe13b989e72e8a728f5e90b2a6b95 SHA-256: 4182d13f1bd90d9cf0086c66e0a82bf605f3725bb7e2cf4f52803c9c39b3c6a1
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains numerous embedded URLs advertising game hacks and cheats, with a primary URL pointing to a download for 'hack-bighead-simulator-roblox-game-hack'. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs and a download button lure suggests an attempt to trick the user into downloading malware. No scripts were extracted from this sample.

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.co/app/431946152/hack-bighead-simulator-roblox-game-hack PDF link annotation
    • http://slims.abulyatama.ac.id/repository/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-hack-roblox-accounts-on-phone_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-robux-2021-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/apk-hack-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/robux-hack-on-apple-computer_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-make-your-roblox-character-look-cool-for-free_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/vip-roblox-free_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-com-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-roblox-avatar-ideas_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-hack-coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-spins-generated-from-coin-master_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-update-2021_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/wurst-hacks_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-hacking-admin-commands-roblox-jailbreak-2021_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-roblox-hacks-jailbreak_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-help-someone-hacked-me_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-tiktok-followers-2021_GM835599320.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-hack-no-root_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-get-free-pets-on-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/robux-hack-no-human-verification-or-offers-2021_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_off00003110.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3110 22888 bytes
SHA-256: f5b83eec489a22bdd095aa3a358e109883729902c7d9a600ec2a939660bc0dba
font_01_sfnt_off0000646f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x646F 19620 bytes
SHA-256: 6dc8f4523df7052b1030eae5fc52559b96f9e60d347ff45aed2520900e8c9d68

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