Malicious PDF — malware analysis report

Static analysis result for SHA-256 e096cdf020878ec5…

MALICIOUS

PDF

36.0 KB Created: 2021-06-18 20:54:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 55fb6a199be8de1b838f9b575c201bb6 SHA-1: 0eb4dc580ab3b82c07528f7217e8e1d6bf77064d SHA-256: e096cdf020878ec5d7e66ced05792ad3f09e14b2374b3ef7bf043143433b0456
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs and a heuristic firing indicating it links to a 'free generator / game hack' redirector. The document body explicitly mentions 'How To Get Robux For Free Working 2021', reinforcing the lure. While no scripts were extracted, the presence of numerous links and the nature of the lure suggest the document is designed to redirect users to potentially malicious sites for scams or malware downloads.

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/how-to-get-robux-for-free-working-2021-game-hack PDF link annotation
    • https://pasca.unisba.ac.id/elibrary/repository/roblox-how-to-get-free-robux-in-games_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/robux-hack-tools_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/roblox-skywars-fly-hack-2021_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/free-robux-click-the-button_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/cheat-tables-roblox_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/safe-hack-for-coin-master-android_GM406889139.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/hack-visea-roblox_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/cmo-hackear-cuenta-de-roblox_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/how-to-get-free-robux-in-2021_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/roblox-chat-script-hack_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/how-to-get-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/minecraft-mod-menu-apk_GM479516143.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/coinmaster-free-spins-link_GM406889139.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/how-to-hack-anyones-roblox-acount_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/how-to-really-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/coin-master-50-spin-link_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_off00003302.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3302 22464 bytes
SHA-256: dbe54531a4bd52fb2f9c5b7a3b9ee9dc008c5933209f8e4e07ea15a8387072c5
font_01_sfnt_off000064f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64F7 19876 bytes
SHA-256: 6076de2b40040a7d0e2b5549def2cd7511d5c0396b3d715ec86f71fcdb2217cf

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