Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbf3e03ba87ad543…

MALICIOUS

PDF

33.6 KB Created: 2021-07-04 18:52:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 86494f8d4c82aef919bcf3516fef3003 SHA-1: e972af40087c66badf88db3f536bc107e57e2176 SHA-256: bbf3e03ba87ad54372cca3e9cf97976ea7b825450f624ec9565fe1a2058594c6
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that are designed as lures for game cheats and hacks, such as 'coin-master-free-spins-cheat-game-hack'. The primary heuristic indicates a high likelihood of redirection to malicious content. While no scripts were extracted, the presence of these lures strongly suggests a phishing or malware distribution attempt, likely initiated via a spearphishing attachment.

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-free-spins-cheat-game-hack PDF link annotation
    • http://ggmtc.net/userfiles/files/2021-fly-hack-roblox_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/free-robux-generator-only-today_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/coin-master-hack-ios-10_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/coin-master-free-online-game_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/how-much-robux-can-you-get-with-1-million-dollars_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/hack-minecraft_GM479516143.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/how-to-hack-into-anyones-account-on-roblox_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/minecraft-free-download-android-apk-014-0_GM479516143.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/coin-master-hack-2021-free_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/coin-master-fan-page_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/free-roblox-groups_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/earn-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/win-free-robux_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/purest-roblox-phantom-forces-hack_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/how-to-make-a-dominus-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/master-coin-hack-game_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/free-spins-and-coins-for-coin-master-game_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
font_00_sfnt_off00002e4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E4D 22500 bytes
SHA-256: 169d9629501c01dc7b27333154cfda92bc1460c835110309a65eaaaba9336692
font_01_sfnt_off00006079.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6079 18340 bytes
SHA-256: 31b040f11d31e2c25a3918167828aea55bdad87c8eae0a9348126ed232a1d2b9

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