Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b823e477d10cf5e…

MALICIOUS

PDF

45.7 KB Created: 2021-06-09 14:35:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-22
MD5: d215428e4a08a7d36ca319ce352ce2df SHA-1: 45b27dd177dc92e9c92d39236f342023caeb12f0 SHA-256: 7b823e477d10cf5e04b0bcbb83f0596fe078475360f5d08b03ac9b40a0c965f5
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 0.9797

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-free-cam-game-hack PDF link annotation
    • https://library.itn.ac.id/perpusitn/repository/free-things-on-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-coinmaster-spins_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-minecraft-for-free-on-mobile_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/robux-hack-download-app_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-spins-2021-link_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-account-taker_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/ios-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-hack-someones-roblox-account-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/minecraft-mobile-free_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/moonactive-coin-master_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-spin-app-2021_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-spin-hack-trick_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/pokemon-go-free-versus-pc_GM1094591345.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-village-4_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-apk-mod_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-spin-link-free_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-g_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-tiktok-views-trial_GM835599320.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004cdf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CDF 24656 bytes
SHA-256: ce5fb6482c499f65c7701fad16f8e20d948d2d457200c35c0937eabccdebd564
font_01_sfnt_off000085af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85AF 2832 bytes
SHA-256: 77ae1c4cffa647a8fd533dfa4102e94364989f9e80b9cd131876e9d1005899a2
font_02_sfnt_off00008f60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F60 18436 bytes
SHA-256: 931da1bf92486ee7274fd5bf63dec790225662f870c287a405845b9fe351c8b5

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