Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e70e2fa0c0b444c…

MALICIOUS

PDF

36.7 KB Created: 2021-07-05 23:50:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: e2f080e96c2e08e5cb0e35a973d0611d SHA-1: 1727bc1f1c932cff9ba9f11f036e398c20ae47a5 SHA-256: 5e70e2fa0c0b444ca4a4eb9b08522aafdb2a072d73c946aa5b5fe5244513ba7f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a "game hack" which redirects to a suspicious URL. The ML classifier also flagged this PDF as malicious with high confidence. While no scripts were extracted, the presence of embedded links and the nature of the lure suggest an attempt to redirect the user to a malicious site, likely for credential harvesting or further malware delivery.

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/need-free-spins-for-coin-master-game-hack PDF link annotation
    • http://fkunismuh.org/perpustakaan/repository/coin-master-free-spin-and-coin-link-haktuts-hacking-news_GM406889139.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/how-to-get-bc-for-free-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/coin-master-hack-tool-v1-9-download-free-pc_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/how-do-you-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/what-happens-if-u-hack-roblox_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/free-robux-no-human-verification-no-survey-ios_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/roblox-fashion-famous-hack-script_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/coin-master-how-to-get-free-pet-food_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/roblox-hacking-website_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/coin-master-time-speed-hack_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/roblox-hand-hack_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/coinmaster-blogspot_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/roblox-hack-client_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/minecraft-free_GM479516143.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/how-to-sell-clothes-for-free-on-roblox_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/how-to-get-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/how-2-get-free-pants-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/comment-maitre-de-dinosaure-dans-free-dino-tycoon-roblox_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_off000038d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x38D1 23076 bytes
SHA-256: 23200aaa2460ec8df2a653960522d4e82e47e263a109d79f7d58c65f46c104d2
font_01_sfnt_off00006cbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CBD 18348 bytes
SHA-256: 3957c128dc793e62d1304d4284793c4a4087ddceea17158896e7adcb416da0fe

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