Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fb1c83e05e43302…

MALICIOUS

PDF

36.1 KB Created: 2021-06-30 05:31:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: b951962cad4fde723ae71fbd8daf91c7 SHA-1: e09a40181785f670e59dcbdac20cc87b56c0dab7 SHA-256: 6fb1c83e05e4330231312da8d5bd1c52b3b062b8587ee5d6891a5bee56469d1b
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links to external resources, many of which are SEO-optimized PDF files related to game hacks and cheats. The document body explicitly mentions 'Free Robux Promo Codes 2021' and includes a primary URL that likely serves as a download or redirect point. The presence of a link farm and the ML classifier's high confidence score indicate a malicious intent to distribute unwanted or harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/free-robux-promo-codes-2021-works-game-hack PDF link annotation
    • http://digilib-ppsunisma.ac.id/repository/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-coins-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-accessory-bear-face-mask-in-roblox_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/how-to-o-get-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/critical-strike-hack-roblox_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/como-tener-hacks-en-roblox-sin-virus_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/coin-master-daily-free-spins-link-facebook_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/how-to-fly-hack-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/coin-master-free-link_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/coin-master-hack-apk-free-download_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-minecraft-account-generator_GM479516143.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/minecraft-roblox-games-free_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/hack-legends-of-speed-roblox_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/minecraft-java-free-trial_GM479516143.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-spin-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/download-cheat-roblox-android_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/youtube-how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/how-to-get-free-robux-nicster_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_off000031ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31FF 22916 bytes
SHA-256: 32ddc46e149bc2e20eab3acf5e43fbd32c8adc3f99fee6d1540988cc8a75da28
font_01_sfnt_off00006532.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6532 20076 bytes
SHA-256: 0508ef868404002881eaa04fce37a6cb999b60c4a50fc90eee99dabb34a7bb5e

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