Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ceec3f3383d8b28…

MALICIOUS

PDF

47.6 KB Created: 2021-06-08 17:23:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 438b71b4149594bbc5f53d64ce1a0d38 SHA-1: 115db546a7d1c5c876ab3d137ff8e2c9ff63319e SHA-256: 5ceec3f3383d8b282c3a8e8cb73f2426f3e490c96ce6b278ae2d2735d9a201a8
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 0.9832

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/roblox-play-paid-games-for-free-game-hack PDF link annotation
    • http://digilib.unla.ac.id/repository/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-roblox-clothes_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/real-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/best-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/pubg-uc-deducted_GM1330123889.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-to-get-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/claim-free-robux-button_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-dominus-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-free-redeem-code_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-hack-2021-ios-download_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-villages_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/games-like-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/pokemon-go-free-download-version_GM1094591345.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-hack-no-verify_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/www-claim-gg-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-daily-free-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
stream_004_off00005506.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5506 27828 bytes
SHA-256: 8e21221d5e4e9d0f7a0b3fb6b495ea0afad5aead24fedceb51226b968302f233
font_01_sfnt_off00009584.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9584 19064 bytes
SHA-256: bd51d3be9f6cc3003159251012678d39b3e913bd775c402e7a1b13f2f0283681

Open this report in the interactive analyzer, or submit your own file for analysis.