Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f505899ee0b21c6…

MALICIOUS

PDF

35.6 KB Created: 2021-07-06 02:09:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 9e2ef4c9da2067743cc646dee802f5dc SHA-1: 3c88ec0a1d5837b85b33ce5f1e664d71ed6ac189 SHA-256: 0f505899ee0b21c69a8f672ef0612b1515a75b60f7e2e58823e1d998c60b3260
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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/431946152/promo-codes-to-get-free-robux-game-hack PDF link annotation
    • https://digilib.stieama.ac.id/repository/mcpe-master-hack-coins_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/win-2021-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/hack-coin-master-online-without-human-verification_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-use-tiktok-for-free_GM835599320.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/hack-on-roblox-to-get-money-for-blox-burg_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/hack-injector-for-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/all-client-roblox-hack-script_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-client-download_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/what-is-the-best-free-game-executor-for-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/jjsploit-roblox-hack_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-online-free-no-download_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-hack-progamers_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-hack-unpatched_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-free-demo_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-world-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/cheat-roblox-granny_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/https-iosgodscom-topic-20214coinmasterhack_GM406889139.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_off0000320b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x320B 22804 bytes
SHA-256: 0b18ed35349c80b930a8f756403fa66d62b84cd2625782c55b92eaaecfaf17c5
font_01_sfnt_off00006548.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6548 19408 bytes
SHA-256: 33ce494440ad385d813675e202d0582184282b0a964bafd641ab8940aca64bdd

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