Malicious PDF — malware analysis report

Static analysis result for SHA-256 483e902c4dea7bb2…

MALICIOUS

PDF

36.1 KB Created: 2021-07-03 14:06:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 3155289f4a74a922dba7536154d7c434 SHA-1: b53b35dce651b5e1bcdf720fa05574391645a340 SHA-256: 483e902c4dea7bb2fb579017562ac3610c3676e8e1c7158ad928edff6eab3589
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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/431946152/free-robux-no-verification-2021-ios-game-hack PDF link annotation
    • http://library.apsidoarjo.ac.id//repository/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-get-minecraft-for-free-on-computer_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-tiktok-fans-quick-and-easy_GM835599320.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-ultimate-driving-westover-islands-hack_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/hack-roblox-users_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-free-without-sign-in-no-download_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-green-dawing-roblox_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-download-ps4-free_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/free-robux-com_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-use-a-script-hack-in-roblox_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/hack-para-jailbreak-2021-roblox-de-sontix_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-robux-live-yt_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/best-free-script-executor-roblox-beginner_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-spins-for-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/hack-roblox-counter-blox-2021_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-roblox-account-givaway_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-roblox-music-sound-ids_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/caillou-hacks-his-robux_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-free-accounts-real-obc_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_off000034d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34D3 22476 bytes
SHA-256: ad56f267669600448415ce76ece6bedf1826cb76d6b0585b90fcbd36e1beb911
font_01_sfnt_off0000669f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x669F 19476 bytes
SHA-256: 9fe1ea1c86177197d61ed707d4c4071d93c63f21ffdcda5dbf12cc87dcc1e4af

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