Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d1670aaca7c79c0…

MALICIOUS

PDF

35.0 KB Created: 2021-07-01 07:33:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: c9e1c22f3a06923253ab547d81cce7fd SHA-1: dfebbf782701bdbf315ccba3e24f5c6853d88c77 SHA-256: 3d1670aaca7c79c0411232068c62f639eee6d7c4b4ed25b48c89fa78c4615942
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-noclip-cheat-engine-2021-game-hack PDF link annotation
    • http://katalog.stikesmukla.ac.id/repository/how-to-get-free-robux-on-iphone_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/robux-free-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/hat-free-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/mathep_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/free-robux-picture_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/free-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/free-galaxy-shirt-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/how-to-get-2021-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/hack-robux-free-no-subscribe_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/april-1st-stickmasterluke-hack-face-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/how-to-hack-someone-password-on-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/roblox-magic-training-wand-free_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/coin-master-apk-hack-download_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/hacked-roblox-game_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/get-free-account-roblox-22-02-2021_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/how-to-get-free-robux-in-roblox-easy-and-fast_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/free-minecraft-for-kids_GM479516143.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/free-roblox-redeem-card-numbers_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002fed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FED 22704 bytes
SHA-256: f5e59023af16e01d0208cb78d92e1097fb77a8231af90573836f06ae7d14bb10
font_01_sfnt_off0000628b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x628B 19456 bytes
SHA-256: de8b39f91d31d1e29ba0a9e0e764e1d10a105bfff3e53ae614146c49c636343b

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