Malicious PDF — malware analysis report

Static analysis result for SHA-256 07935d524982fa23…

MALICIOUS

PDF

35.4 KB Created: 2021-06-25 10:27:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 924208b7fda7527237f4624245b31221 SHA-1: 6289e93945a5769d5a1da2db5c1935c48351a626 SHA-256: 07935d524982fa232c638ec01e3fc6cf16482d397b58fd40a27c8cbbbb49de14
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs, with a primary focus on 'game hack' lures. The heuristic PDF_GAME_HACK_REDIRECT_LURE specifically flags this behavior. The ML classifier also strongly indicates maliciousness. The document body, though partially corrupted, contains references to game hacks and URLs, reinforcing the lure tactic.

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.co/app/431946152/roblox-counter-blox-free-skins-game-hack PDF link annotation
    • https://repository.stikesindramayu.ac.id/repository/minecraft-112-hacked-client_GM479516143.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/roblox-booga-booga-hack_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/roblox-zone-free-robux_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/coin-master-free-spins-and-coins-daily-links_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/dailyrobux_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/mejores-hacks-para-roblox_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/robux-fun-hack_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/roblox-hack-2021_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/army-tycoon-hack-roblox_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/join-this-group-for-free-robux_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/coin-master-hacks-that-actually-work_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/hack-for-roblox-martial-arts_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/roblox-cheats-for-free-builders-club_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/coin-master-free-spins-link-blogspot_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_off000030ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30EA 23188 bytes
SHA-256: ffdcb41a29c4ddcf4ddc8942a8df19d5d42bcb7af465d1094612e6267ef53096
font_01_sfnt_off000064e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64E0 19184 bytes
SHA-256: ebefecb0ed272303618def21c8dbb45d53b344179b2df77b8a898c13f77ba0c3

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