Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ccce59b3a390346…

MALICIOUS

PDF

35.6 KB Created: 2021-07-04 11:17:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 9843cc19d4333c3e13b1536aa75c109f SHA-1: 65a7c0d6737e3eeb51d862ed4ffa966f869c39a6 SHA-256: 5ccce59b3a3903466d6087fa682f514bff12bb9c232545998aa8dccdff510c82
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures for game-related hacks and free items, directing users to the URL http://netcdn.tw/app/406889139/100-free-spins-for-coin-master-2021-game-hack. This URL is flagged as a redirector for game hacks, indicating a likely attempt to deliver a malicious payload or phish for credentials. The ML classifier also strongly indicated maliciousness.

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/406889139/100-free-spins-for-coin-master-2021-game-hack PDF link annotation
    • http://opac.disarpus.surakarta.go.id/repository/what-happens-if-u-hack-roblox_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-items-in-roblox-pastebin_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/how-to-hack-something-into-your-roblox-inventory_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/coin-master-free-spins-link-hack_GM406889139.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/how-to-get-hack-roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-robux-no-anti-bot-verification_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/roblox-decal-id-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/troll-roblox-avatars-free_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-robux-giftcard-codes-2021_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-tiktok-fans-hack_GM835599320.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-spins_GM406889139.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/descargar-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/mobihack-net-roblox-hack_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/sean-roblox-hack_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-roblox-gift-card-codes-2021-november_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/roblox-card-generator-hack_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-pet-snacks-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-robux-codes-2021-not-used_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_off000032c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32C6 23384 bytes
SHA-256: d916e450cebec3264199bb5a8fe7bbb77344f0710e047451bbf76a03b2d4bd85
font_01_sfnt_off000067a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67A2 18576 bytes
SHA-256: a7425c34b8d7eb14cbf0da848baf8ea5686f32b078cb66a28ba99e388d73710a

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