Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ff3d6e20c37380c…

MALICIOUS

PDF

45.1 KB Created: 2021-05-12 17:42:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 5ceabb848e7af6665abd9dd11c61051f SHA-1: 885d52b27b54ea963165ca1e30cc3a8899d5eb72 SHA-256: 9ff3d6e20c37380c7f882aa9a351924b21a5a4d96ddf8a7a042e1c936c87ed87
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a prominent link disguised as a game hack generator, which is a common lure for malicious downloads or phishing. The ML classifier strongly flagged this PDF as malicious. The embedded URLs, such as 'https://netcdn.xyz/app/406889139/coin-master-spin-hack-app-game-hack', likely lead to the next stage of the attack, which could be a payload download or a credential harvesting page.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9621

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.xyz/app/406889139/coin-master-spin-hack-app-game-hack PDF link annotation
    • http://lib.stie-aub.ac.id/repository/who-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/coin-master-free-coins-twitter_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/roblox-april-fools-hack_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/daily-coin-master-free_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/haktuts-coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/how-to-get-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/games-that-can-be-hacked_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/archery-master-3d-hack-unlimited-coins-cheats_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/win-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/coin-master-free-spin-and-coin-link-haktuts-hacking-news_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/is-it-possible-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-minecraft-thumbnails_GM479516143.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-robux-pin-codes_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-spins-coin-master-links-blogspot_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/coin-master-free-spins-link-whatsapp-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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000048ef.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48EF 25008 bytes
SHA-256: 40ed73a67f1a39b0cb0384f096bcde26bd7546af3b680dc7d8671b646a11b31e
font_01_sfnt_off00008266.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8266 3560 bytes
SHA-256: c953d730e49f69c7d62e02a926729ae4a31de13d9a976dc4a95b39cf47066c93
font_02_sfnt_off00008eec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EEC 17892 bytes
SHA-256: f240daff11927ead54175dd0584966adfe4c567a63bac043ed3985d3f12dfc21

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