Malicious PDF — malware analysis report

Static analysis result for SHA-256 faa2c051cd2dacad…

MALICIOUS

PDF

34.5 KB Created: 2021-07-03 13:52:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 78127750ab49c1a4ebbcfd3a1c67cd12 SHA-1: fbfbe0cf74447e92a0a690a6d16e85f064dadc46 SHA-256: faa2c051cd2dacade2e54e7e0edfb93c37d34c79a899bd471954cffe0d3ddf40
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/406889139/hacks-para-coin-master-game-hack PDF link annotation
    • http://digilib.iailm.ac.id/repository/robux-hack-with-required-password_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/rblx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/get-free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/minecraft-that-you-can-play-for-free_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/minecraft-115-2-hacks_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-robux-safe_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/minecraft-pe-apk-download_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/robux-best_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-use-cheat-engine-on-roblox-jailbreak-for-money_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/how-to-make-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-cheat-in-roblox-lifting-simulator_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/roblox-free-bag-goku_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/roblox-project-jojo-stand-hack_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/roblox-hack-fly-download_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-robux-no-offers-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/roblox-free-download_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-free-spons-apk-2021_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/play-games-and-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/cpbildco-robux_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_off0000324e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x324E 22608 bytes
SHA-256: b163c8bc44a45fa5470f03c21b091883a0d74d5d62c67950f0dfdbc8ea42c550
font_01_sfnt_off0000648a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x648A 18160 bytes
SHA-256: 5676d42287b09385bfa51395fc3f84c79b5f17e4b07494173d03168f2b88060a

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