Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cc85002c84a3033…

MALICIOUS

PDF

34.7 KB Created: 2021-07-03 13:33:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: a79f45347d9abcccac78cac17cde967d SHA-1: ab4abc65b6dbaab454886bd35ec4016a87fb4106 SHA-256: 3cc85002c84a30330cd06585d5f7a15094c09066a90ea0675fac6234daa270d2
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a high-severity heuristic firing for a game hack redirect lure, pointing to a URL that promises "coin-master-promo-code-2021-game-hack". The document body also contains this URL, reinforcing the lure. This suggests the primary purpose is to trick the user into visiting a malicious site, likely for further exploitation or malware delivery.

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.tw/app/406889139/coin-master-promo-code-2021-game-hack PDF link annotation
    • http://www.stttekstil.ac.id/elib/repository/roblox-games-that-have-free-boomboxes_GM431946152.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/free-robux-don-t-have-to-do-anything_GM431946152.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/how-do-u-hack-roblox_GM431946152.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/get-free-robux-by-watching-videos_GM431946152.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/cheats-fro-csgo-in-roblox_GM431946152.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/get-free-followers-on-tiktok_GM835599320.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/free-roblox-place-downloads_GM431946152.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/roblox-hack-konsol_GM431946152.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/how-to-log-out-of-coin-master_GM406889139.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/free-spin-coin-master-apk_GM406889139.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/how-to-hack-roblox-using-cheat-engine-66_GM431946152.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/free-minecraft-skins-ps4_GM479516143.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/coin-master-free-spinv1-0apkpure-com-apk_GM406889139.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/is-there-a-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/earn-free-robux-online_GM431946152.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/free-roblox-promo-codes-july-2021_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
stream_002_off00003067.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3067 22752 bytes
SHA-256: 29cb67f44e3e3f8ecba963a5a87a425084aca28df61fe23625fd2a17fea9388e
font_01_sfnt_off0000634c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x634C 18824 bytes
SHA-256: 534e865ad7da8774d60a1bfed88797e1064be347cae87d24669f32b043491ebd

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