Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7204f7dffd5a23c…

MALICIOUS

PDF

38.0 KB Created: 2021-06-20 06:39:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 4de280641d05c514ae9c85faa92f99ed SHA-1: 9732a9962b8aeb91690250731abecabda6e4b423 SHA-256: e7204f7dffd5a23c384a587464c8ae0c5f3115446dcf157651592ec5604a33ba
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacks, specifically for Roblox Jailbreak, directing users to a suspicious URL. This heuristic, combined with the ML classification, strongly suggests a malicious intent to redirect users to potentially harmful content or phishing pages. Although no scripts were directly extracted, the PDF structure and embedded URLs indicate a social engineering tactic to trick users into clicking malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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.co/app/431946152/roblox-jailbreak-free-vip-server-link-2021-game-hack PDF link annotation
    • https://library.uigm.ac.id/repository/coin-master-free-spin-codes_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/roblox-troll-outfits-free_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/swiftbucks-hack-roblox_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/roblox-girl-shirt-codes-free-shipping_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-robux-instantly_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/minecraft-free-android_GM479516143.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-roblox-membership-codes_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/minecraft-pe-free-ios_GM479516143.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-robux-today_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/minecraft-java-server-hosting-free_GM479516143.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/overhol-roblox-free-shop-2021_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-robux-and-tix-generator-no-download_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-robux-safe_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-roblox-clothes-and-hair_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/how-to-get-free-robux-without-downloading-any-apps_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/get-free-roblox-card-codes_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/robux-now_GM431946152.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
font_00_sfnt_off00003c38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3C38 22160 bytes
SHA-256: c3c549f0dc8f5a086365e6a25fbafcf3c36bd65e986890001bc26faf4ab75729
font_01_sfnt_off00006d4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D4F 19932 bytes
SHA-256: 32b839a5f1ddfa0100e86471c0743a9f09a80a7138443e5e10752b512b83d334

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