Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c26d18efff5e11b…

MALICIOUS

PDF

34.6 KB Created: 2021-06-28 17:21:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 8925db178f8447da7f9911a48e721c4e SHA-1: 386392cd0c6d6be4eceb12cc12fa769a20c0a140 SHA-256: 1c26d18efff5e11bbb019ee668ad50b8ea3a1f5f699a1dd7c6b722cde5059a85
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 hacks and free currency, aiming to trick users into visiting malicious sites. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates this malicious intent. No scripts were extracted from this sample, but the presence of numerous suspicious URLs suggests a phishing or malware distribution campaign.

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.co/app/431946152/how-to-hack-roblox-models-game-hack PDF link annotation
    • http://perpus.wdh.ac.id/repository/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/coin-master-hack-spins-apk_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/how-to-hack-roblox-games-without-downloads_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/free-hiring-scripters-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/get-robux-no-hack_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/coin-master-hack-pc_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/get-free-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/hack-para-fame-simulator-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/minecraft-mod-menu_GM479516143.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/script-cheat-for-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/free-spins-and-coins-coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/coin-master-attack-hack_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/como-ser-hacker-en-roblox-con-el-movil_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/coin-master-free-coins-today_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/how-to-get-free-robux-2021-no-survey_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/minecraft-pocket-edition-download-free-pe-calculator_GM479516143.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_off00003190.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3190 21892 bytes
SHA-256: c3c545782d07b8292cffcb90314bfbd79405703c8fa95704223a7f330b095962
font_01_sfnt_off00006187.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6187 19188 bytes
SHA-256: 64e414e5cfd897dcba64db5cbc0cebed6d70d3b771c84661f3672d703b9eee22

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