Malicious PDF — malware analysis report

Static analysis result for SHA-256 69e322ccb0b6fa6c…

MALICIOUS

PDF

44.0 KB Created: 2021-06-07 03:34:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 4cb30d8a1eef1a581763fdff5cec7414 SHA-1: 1950b1dedd1c9fc1002f50be57786a3a2a678c47 SHA-256: 69e322ccb0b6fa6c802cd5bcdc073e7be1d0d6540d20843a61edb823490e3255
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 0.9865

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 https://netcdn.tw/app/431946152/free-robux-and-bc-game-hack PDF link annotation
    • http://library.stikessuakainsan.ac.id/repository/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/hack-coin-master-apk-32_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/free-executor-roblox_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/how-to-get-free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/real-coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/free-robux-master_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/https-rbx-place-rewards_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/master-coin-hack-app_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/free-tiktok-followers_GM835599320.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/coin-master-free-spins-no-survey_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/how-to-change-username-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/how-to-get-real-robux_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/coin-master-cards-for-free_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/coin-master-spin-hack-2021_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/free-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/wurst-112_GM479516143.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/robux-earner_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_off00004f40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F40 25252 bytes
SHA-256: 71d32ca93144865651d57177e253fc1ccf02bc9fc8747a172a45dfa1ac5d87ab
font_01_sfnt_off0000897a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x897A 18188 bytes
SHA-256: 726108e264927cfadd9ad13deaf09fd6883f16645ebfaa9ec4d285dbcf86e9d9

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