Malicious PDF — malware analysis report

Static analysis result for SHA-256 1203ea4e5dd88d3f…

MALICIOUS

PDF

36.1 KB Created: 2021-07-08 11:04:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 7f0536ec4f8d7155741c64903465a8fe SHA-1: 088a4379593f86c3e7a410ede78edca48569c20f SHA-256: 1203ea4e5dd88d3f9c5dd8af16c6ccf43bced0582c2975d4c99b099ff443ce5b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites that promise game hacks and free currency, such as 'coin-master-free-spain-game-hack'. These links are likely intended to redirect users to malicious sites for downloading malware or engaging in phishing. The ML classifier also strongly indicated maliciousness.

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-spain-game-hack PDF link annotation
    • http://licko.cz/files/how-to-get-free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
    • http://licko.cz/files/roblox-rc7-cracked-free-download_GM431946152.pdfIn PDF document text
    • http://licko.cz/files/free-robux-no-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://licko.cz/files/card-hack-in-coin-master_GM406889139.pdfIn PDF document text
    • http://licko.cz/files/how-to-hack-roblox-2021-may_GM431946152.pdfIn PDF document text
    • http://licko.cz/files/do-coin-master-hacks-work_GM406889139.pdfIn PDF document text
    • http://licko.cz/files/roblox-bad-buisness-hack_GM431946152.pdfIn PDF document text
    • http://licko.cz/files/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://licko.cz/files/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
    • http://licko.cz/files/hack-para-roblox-para-matar_GM431946152.pdfIn PDF document text
    • http://licko.cz/files/how-to-run-fast-in-roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://licko.cz/files/coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://licko.cz/files/free-robux-no-email_GM431946152.pdfIn PDF document text
    • http://licko.cz/files/get-5-free-robux-just-for-signing-up_GM431946152.pdfIn PDF document text
    • http://licko.cz/files/roblox-suit-t-shirt-free_GM431946152.pdfIn PDF document text
    • http://licko.cz/files/minecraft-pe-apk_GM479516143.pdfIn PDF document text
    • http://licko.cz/files/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://licko.cz/files/coin-master-bonus_GM406889139.pdfIn PDF document text
    • http://licko.cz/files/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://licko.cz/files/coin-master-mod-version-free-download-34-4_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000367e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x367E 23284 bytes
SHA-256: 7cacd18279643ed3685e2cbadddf289e547fef268cadcb105a08bc91ccd2959c
font_01_sfnt_off00006afc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AFC 18176 bytes
SHA-256: c90cd52c690b3b1dd04b69356ad4f8db221968fb130a3d2ff71dcd50323a1a90