Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd70b7c7000c0cb8…

MALICIOUS

PDF

34.4 KB Created: 2021-06-28 08:02:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: ff34bab128798c0820aac0dc14be956b SHA-1: 3391262caced1623726796fab15ba195e389590d SHA-256: dd70b7c7000c0cb82adeed9a3816102211797fdc1bced48b3e0ec9ef44f0d9e7
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a prominent link to a website offering 'Roblox Hack Online Cheats Tool', identified as a lure for game hacks. This heuristic, combined with the ML classifier flagging the PDF as malicious, strongly suggests a social engineering attack. The embedded URL likely leads to a second-stage payload or a phishing page designed to exploit user interest in free game items.

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/roblox-hack-online-cheats-tool-game-hack PDF link annotation
    • https://imagetravelnepal.com/userfiles/files/how-to-get-free-robux-from-a-white-hat_GM431946152.pdfIn PDF document text
    • https://imagetravelnepal.com/userfiles/files/memcorrupt-free-robux_GM431946152.pdfIn PDF document text
    • https://imagetravelnepal.com/userfiles/files/how-to-get-roblox-premium-for-free-2021_GM431946152.pdfIn PDF document text
    • https://imagetravelnepal.com/userfiles/files/minecraft-free-download-iphone_GM479516143.pdfIn PDF document text
    • https://imagetravelnepal.com/userfiles/files/ways-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://imagetravelnepal.com/userfiles/files/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • https://imagetravelnepal.com/userfiles/files/how-to-get-minecraft-for-free-on-ps4_GM479516143.pdfIn PDF document text
    • https://imagetravelnepal.com/userfiles/files/free-robux-rewards_GM431946152.pdfIn PDF document text
    • https://imagetravelnepal.com/userfiles/files/hacking-s-roblox-account_GM431946152.pdfIn PDF document text
    • https://imagetravelnepal.com/userfiles/files/roblox-login-hack_GM431946152.pdfIn PDF document text
    • https://imagetravelnepal.com/userfiles/files/best-free-spin-app-for-coin-master_GM406889139.pdfIn PDF document text
    • https://imagetravelnepal.com/userfiles/files/free-spins-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • https://imagetravelnepal.com/userfiles/files/huskybuxcom-free-robux_GM431946152.pdfIn PDF document text
    • https://imagetravelnepal.com/userfiles/files/coin-master-app_GM406889139.pdfIn PDF document text
    • https://imagetravelnepal.com/userfiles/files/free-credit-on-roblox-twisted-murderer_GM431946152.pdfIn PDF document text
    • https://imagetravelnepal.com/userfiles/files/como-hackear-el-juego-coin-master_GM406889139.pdfIn PDF document text
    • https://imagetravelnepal.com/userfiles/files/coinmaster-links_GM406889139.pdfIn PDF document text
    • https://imagetravelnepal.com/userfiles/files/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • https://imagetravelnepal.com/userfiles/files/hacks-minecraft_GM479516143.pdfIn PDF document text
    • https://imagetravelnepal.com/userfiles/files/free-robux-scam_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_off0000301e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x301E 22260 bytes
SHA-256: ccd125e98b0c27dce8342df7eba25517fb502144e8f3bc8e049bb6a88b41b8b0
font_01_sfnt_off00006172.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6172 19044 bytes
SHA-256: 3b37dd9e90b1259cda2980ffbbe38d6b349e34b13aa0896dc465d4b99bfc54a8

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