Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb07bc213ba1a0af…

MALICIOUS

PDF

45.9 KB Created: 2021-06-03 14:15:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 4433949d7a94290e179140ebaa076753 SHA-1: e922ca904f2251e74eca5c83fd2c9fa7cc474ffe SHA-256: fb07bc213ba1a0af1b9400f02fd42f7630f0bc83d33886187f1c0566617b4867
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

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/406889139/how-to-earn-free-spin-in-coin-master-game-hack PDF link annotation
    • http://www.perpus.stfm.ac.id/repository/minecraft-windows-10-key-free_GM479516143.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/coin-master-daily-free-coins-link_GM406889139.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/freespinandcoinblogspotcom-2021-11-coinmasterfreespinandcoinlinkshtml_GM406889139.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/minecraft-free-minecraft_GM479516143.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/www-coin-master-hack-com_GM406889139.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/coin-master-hack-version-download-2021_GM406889139.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/minecraft-free-apk_GM479516143.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/op-rewards-robux_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/coin-master-free-spins-fb_GM406889139.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/pokemon-go-free-download-for-pc_GM1094591345.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/tiktok-par-free-followers-kaise-badhaye_GM835599320.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/login-robux_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/mcmaster-club-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/free-spins-coin-master-april-2021_GM406889139.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/hack-coin-master-for-iphone_GM406889139.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/coin-master-free-spin-group_GM406889139.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
stream_004_off0000592c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x592C 25144 bytes
SHA-256: fdfaf96c149b51ce5386619adcd823e4782eb2ee3b3e5065f72ab5c973e5f43a
font_01_sfnt_off000091df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91DF 18052 bytes
SHA-256: c8469be4e135a939fdcd4d5c4316a8d7a284a9925859706409da67ce72f50dba

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