Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad07dbc70d426c5e…

MALICIOUS

PDF

45.7 KB Created: 2021-06-03 09:13:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 52e4a3985b9f334c10b53b98f3e2ab1d SHA-1: 1e7d47c0419f3adb076fc963a7eb1dd187ceea76 SHA-256: ad07dbc70d426c5ec01919529264d1cf31aa29d7c0bce6aef28979923b07c120
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 0.9864

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.online/app/431946152/roblox-pokemon-brick-bronze-hack-game-hack PDF link annotation
    • http://library-fkip.uho.ac.id/repository/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • http://library-fkip.uho.ac.id/repository/free-robux-no-anti-bot-verification_GM431946152.pdfIn PDF document text
    • http://library-fkip.uho.ac.id/repository/free-robux-without-survey_GM431946152.pdfIn PDF document text
    • http://library-fkip.uho.ac.id/repository/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library-fkip.uho.ac.id/repository/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://library-fkip.uho.ac.id/repository/roblox-report-hacker_GM431946152.pdfIn PDF document text
    • http://library-fkip.uho.ac.id/repository/minecraft-pe-free-download-ios-no-jailbreak_GM479516143.pdfIn PDF document text
    • http://library-fkip.uho.ac.id/repository/get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://library-fkip.uho.ac.id/repository/roblox-speed-hack_GM431946152.pdfIn PDF document text
    • http://library-fkip.uho.ac.id/repository/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library-fkip.uho.ac.id/repository/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://library-fkip.uho.ac.id/repository/free-spins-coin-master-unlimited_GM406889139.pdfIn PDF document text
    • http://library-fkip.uho.ac.id/repository/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library-fkip.uho.ac.id/repository/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://library-fkip.uho.ac.id/repository/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • http://library-fkip.uho.ac.id/repository/today-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://library-fkip.uho.ac.id/repository/free-robux-generator-2021-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://library-fkip.uho.ac.id/repository/roblox-hacks-for-mac_GM431946152.pdfIn PDF document text
    • http://library-fkip.uho.ac.id/repository/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://library-fkip.uho.ac.id/repository/buy-robux-free_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
stream_004_off000052c7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x52C7 25672 bytes
SHA-256: 87d0fbcb78cf8554ddd8c432ee7abf2cec448dc1feeec16514b32177a2a59914
font_01_sfnt_off00008e99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E99 18800 bytes
SHA-256: ba95f6fbf7c3c846a712247e989e7c99d38e2c3f4884f2c33588d973f622d746

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