Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d78e55d0bc1a235…

MALICIOUS

PDF

44.3 KB Created: 2021-05-16 16:08:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 4f11226d242ed5dd82da57d0a0fbcd80 SHA-1: c51068419d052cc6f74ae979c353595ed486b5a5 SHA-256: 0d78e55d0bc1a235adb3def017342fb3181f868b64126714b295fd0043bca46b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document impersonates Facebook to lure users into downloading a Minecraft hacking tool via the URL https://netcdn.xyz/app/479516143/minecraft-auto-miner-hack-game-hack. The document body contains numerous links to other potential download sites for game cheats and hacks, suggesting a broader campaign of distributing malicious tools. While no scripts were explicitly extracted, the ML classifier and brand credential phishing heuristic strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.xyz/app/479516143/minecraft-auto-miner-hack-game-hack.
  • 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/479516143/minecraft-auto-miner-hack-game-hack PDF link annotation
    • https://amazingnepaljourney.com/userfiles/files/minecraft-114-download_GM479516143.pdfIn PDF document text
    • https://amazingnepaljourney.com/userfiles/files/coin-master-fun-free-spins_GM406889139.pdfIn PDF document text
    • https://amazingnepaljourney.com/userfiles/files/free-roblox-wings_GM431946152.pdfIn PDF document text
    • https://amazingnepaljourney.com/userfiles/files/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://amazingnepaljourney.com/userfiles/files/give-free-robux_GM431946152.pdfIn PDF document text
    • https://amazingnepaljourney.com/userfiles/files/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • https://amazingnepaljourney.com/userfiles/files/ways-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://amazingnepaljourney.com/userfiles/files/minecraft-modded-client_GM479516143.pdfIn PDF document text
    • https://amazingnepaljourney.com/userfiles/files/free-coin-master-spins-blogger_GM406889139.pdfIn PDF document text
    • https://amazingnepaljourney.com/userfiles/files/do-coin-master-hacks-work_GM406889139.pdfIn PDF document text
    • https://amazingnepaljourney.com/userfiles/files/free-foxy-food-coin-master_GM406889139.pdfIn PDF document text
    • https://amazingnepaljourney.com/userfiles/files/hack-coin-master-mod-apk_GM406889139.pdfIn PDF document text
    • https://amazingnepaljourney.com/userfiles/files/coin-master-village-cost_GM406889139.pdfIn PDF document text
    • https://amazingnepaljourney.com/userfiles/files/hack-coin-master-ios-download_GM406889139.pdfIn PDF document text
    • https://amazingnepaljourney.com/userfiles/files/free-role-in-coin-master_GM406889139.pdfIn PDF document text
    • https://amazingnepaljourney.com/userfiles/files/minecraft-free-online_GM479516143.pdfIn PDF document text
    • https://amazingnepaljourney.com/userfiles/files/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://amazingnepaljourney.com/userfiles/files/coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • https://amazingnepaljourney.com/userfiles/files/client-minecraft_GM479516143.pdfIn PDF document text
    • https://amazingnepaljourney.com/userfiles/files/how-to-hack-roblox-2021_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
stream_003_off00004ab1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AB1 29056 bytes
SHA-256: 20fcea35fc9d38af32f76a018351e4a2899289e0c23ca5bffc7b23260bcc72bf
font_01_sfnt_off00008c05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C05 18020 bytes
SHA-256: 86e6774633c009864cf2e6370ccb0e3f934264dfbdd37e66ab21c5f065fadd8b

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