Malicious PDF — malware analysis report

Static analysis result for SHA-256 76dafcefd83805ed…

MALICIOUS

PDF

45.2 KB Created: 2021-05-16 07:12:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 78abe57ad266af6f19987044bf364470 SHA-1: e3f1277ccc3d9385142506bfc3146d2915739761 SHA-256: 76dafcefd83805ed0ee8ae4a568837785feed5ddc95707637fae9f42e8dd90ca
110 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous embedded links, many of which are part of a link farm designed to artificially inflate search engine rankings. The primary URL, 'https://netcdn.xyz/app/431946152/rewards-robux-game-hack', suggests a lure for game-related cheats or hacks. The presence of a PDF URI heuristic and the sheer volume of external links indicate a strong likelihood that this document is intended to redirect users to potentially malicious websites for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/431946152/rewards-robux-game-hack
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/coin-master-free-2021-spin-link_GM406889139.pdf
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/roblox-skins-boy-free_GM431946152.pdf
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/free-robux-kid-friendly_GM431946152.pdf
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/free-spins-for-coin-master-2021_GM406889139.pdf
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/free-minecraft-games-for-kids_GM479516143.pdf
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/static-moonactive_GM406889139.pdf
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/how-to-get-roebucks-in-roblox_GM431946152.pdf
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/moon-static-coin-master-generator-hacks-free_GM406889139.pdf
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-codes-2021_GM431946152.pdf
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/hacks-minecraft_GM479516143.pdf
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/minecraft-pe-apk-free-download_GM479516143.pdf
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/free-robux-just-enter-username-and-password_GM431946152.pdf
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/minecraft-free-unblocked_GM479516143.pdf
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/free-spins-on-coin-master_GM406889139.pdf
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/coin-master-free-spins-and-coins-2021_GM406889139.pdf
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/get-free-robux-without-doing-anything_GM431946152.pdf
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/how-to-hack-people-in-roblox_GM431946152.pdf
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdf
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/coin-master-hack-spins-and-coins-unlimited-free-download_GM406889139.pdf
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/coin-master-free-spin-link-today-2021_GM406889139.pdf
    • https://www.roblox.com
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004c8b.bin
e3493de91c717ec089ee37bd1c2dec9183f01c92c63ea7a908a31002d7423dd1		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C8B 28312 bytes
font_01_sfnt_off00008e0b.bin
21116ea904a611fad18bc85f00e00e8b2c3853fc9714ecb701cf7760588061a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E0B 18416 bytes

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