Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8e2aefef2313545…

MALICIOUS

PDF

44.6 KB Created: 2021-05-15 12:05:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 1bb88e44b824b71dacd12de231f891a6 SHA-1: 58d80cf6b5f6103e6b911b980c02243ee446e719 SHA-256: d8e2aefef23135455fa68bff0d831550bc326c1ec7872e2e1b3d34e5ff4bd212
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 for popular games like Coin Master and Roblox. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly suggests a malicious intent to redirect users to potentially harmful sites. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lures indicate a phishing or scam 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 https://netcdn.xyz/app/406889139/coin-master-hack-apk-facebook-login-game-hack PDF link annotation
    • https://enpav.it/images/free-spins-on-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
    • https://enpav.it/images/coin-master-daily-gift-free-spins-and-coins-link-today_GM406889139.pdfIn PDF document text
    • https://enpav.it/images/how-can-i-get-robux_GM431946152.pdfIn PDF document text
    • https://enpav.it/images/roblox-fun-robux_GM431946152.pdfIn PDF document text
    • https://enpav.it/images/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • https://enpav.it/images/cool-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • https://enpav.it/images/roblox-april-fools-hack_GM431946152.pdfIn PDF document text
    • https://enpav.it/images/mobihack-net-roblox-hack_GM431946152.pdfIn PDF document text
    • https://enpav.it/images/coin-master-game-free-spin-download_GM406889139.pdfIn PDF document text
    • https://enpav.it/images/robux-only_GM431946152.pdfIn PDF document text
    • https://enpav.it/images/how-to-hack-any-roblox-account_GM431946152.pdfIn PDF document text
    • https://enpav.it/images/free-robux-2021-no-verification_GM431946152.pdfIn PDF document text
    • https://enpav.it/images/minecraft-hacked-client-18_GM479516143.pdfIn PDF document text
    • https://enpav.it/images/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • https://enpav.it/images/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • https://enpav.it/images/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • https://enpav.it/images/how-to-hack-someones-account-on-roblox_GM431946152.pdfIn PDF document text
    • https://enpav.it/images/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • https://enpav.it/images/how-to-get-more-robux-for-free_GM431946152.pdfIn PDF document text
    • https://enpav.it/images/coin-master-free-daily-spins-and-coins_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_003_off0000498e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x498E 30628 bytes
SHA-256: c1b2aea06df1c19923cd3318c2b39c2ce6513d82c56c915bfee9c0603f374fdb
font_01_sfnt_off00008b9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B9F 18504 bytes
SHA-256: 09f845dbab102c2a44680f08ef0cb39b809a24ce37ab1af9b7c1c0a4ff52117a

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