Malicious PDF — malware analysis report

Static analysis result for SHA-256 28d4a1a014831d75…

MALICIOUS

PDF

33.9 KB Created: 2021-07-09 07:53:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: c2def6086348dec0e0e1f26e043724e4 SHA-1: 389743b8e2f0338103fb531f26af195ca6f506dc SHA-256: 28d4a1a014831d757b9b56a68dfafeb62947851560d2f7603517d6bb5b8c1fb7
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document is designed to lure users with promises of free game cheats and accounts, directing them to malicious URLs. The primary malicious link identified is http://netcdn.tw/app/479516143/free-minecraft-alts-game-hack, which likely serves as a redirector to a payload or phishing page. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a malicious intent to exploit user interest in game hacks for malicious purposes.

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/479516143/free-minecraft-alts-game-hack PDF link annotation
    • http://www.peterbarsony.com/userfiles/files/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/boku-no-roblox-remastered-quirk-hack_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/how-to-hack-roblox-go-through-walls_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/how-to-hack-a-profile-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/roblox-hack-download-free_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/coin-master-free-spins-activegamer_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/pokemon-ultra-brick-bronze-roblox-free-shiny-eevee_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/roblox-military-simulator-hack_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/get-free-robux-gg_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/free-robux-master_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/can-you-hack-using-developer-console-roblox_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/coin-master-free-spins-link-blogspot-today_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/hacks-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/mcpe-optifine_GM479516143.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/neon-hack-roblox_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/free-tiktok-fans-hack_GM835599320.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/how-to-get-minecraft-for-free-on-phone_GM479516143.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_off00003231.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3231 21988 bytes
SHA-256: cd4f49b500420d2c0d8f98b6ec22ca186b7965b18c74e00fd48a50192f0f1bd5
font_01_sfnt_off000062e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62E7 17928 bytes
SHA-256: 91edb68760769c57e2ae27c47b453105159c3fcb726fe83381a309c28b27d19d

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