Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a5f3f26fe8fc6f9…

MALICIOUS

PDF

34.9 KB Created: 2021-06-30 00:34:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: d7c883f5e653dc3245b85c95dbc9bf56 SHA-1: cf36a29f9745b76dd96185ca31d903817a244555 SHA-256: 9a5f3f26fe8fc6f9e0c5ed7ee8dc3a7f289ac51e1733ad9ff98ceeee78e62696
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.co/app/431946152/roblox-clone-tycoon-2-codes-hack-exploit-game-hack PDF link annotation
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/what-is-robux-in-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/minecraft-mods-download-free_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/coin-master-cheats-for-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/furk-roblox-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/roblox-gang-rape_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/coin-drop-master-free_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/coin-master-hack-lost-world-2021-com_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/how-to-make-free-shirt-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/how-to-fly-in-roblox-free_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/free-roblox-injector_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/minecraft-xbox-360-free_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/minecraft-pe-free-apk_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/roblox-bloxburg-free-money_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/how-do-you-hack-roblox-money_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/coin-master-60-spins_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_off0000311c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x311C 21920 bytes
SHA-256: 2f698dd001f004d42554cdc9509d2621772d814581b91f93b6080840d4f29604
font_01_sfnt_off0000618a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x618A 19536 bytes
SHA-256: 1d7b2757442d7e418e3a99db4a07eaa27a601696a4bc83c06bdd518a3f40e4be

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