Malicious PDF — malware analysis report

Static analysis result for SHA-256 13b96ee5aeeeb08a…

MALICIOUS

PDF

44.3 KB Created: 2021-06-09 04:28:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 9f849463a7ffdd35a1e16fe908e8ed60 SHA-1: 430ecf6f14eab5d75cc2c1a9eff73e7272c183d2 SHA-256: 13b96ee5aeeeb08acd564a9627b70c8c284e4d3cdb9812c4c3c6e1af6d7e5a3e
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded URLs pointing to external resources, with a high-confidence ML classifier flagging it as malicious. The document body and extracted URLs suggest a lure related to game cheats and hacks, indicating an attempt to trick users into downloading further malware. The presence of embedded URIs and the overall structure strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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.tw/app/431946152/roblox-cheat-enginge-game-hack
    • http://110.232.83.89/slimsppks/repository/coin-master-free-spins-2021_GM406889139.pdf
    • http://110.232.83.89/slimsppks/repository/free-diamonds-coin-master_GM406889139.pdf
    • http://110.232.83.89/slimsppks/repository/minecraft-free-apk-java-edition_GM479516143.pdf
    • http://110.232.83.89/slimsppks/repository/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/coin-master-mod-apk-latest-hack-with-unlimited-free-spins_GM406889139.pdf
    • http://110.232.83.89/slimsppks/repository/is-minecraft-java-free_GM479516143.pdf
    • http://110.232.83.89/slimsppks/repository/free-coin-master-game_GM406889139.pdf
    • http://110.232.83.89/slimsppks/repository/roblox-hack-download_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/minecraft-free-download-laptop_GM479516143.pdf
    • http://110.232.83.89/slimsppks/repository/free-robux-generator-codes_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/rewardrobux-com_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/coin-master-cracked-apk-free-download_GM406889139.pdf
    • http://110.232.83.89/slimsppks/repository/free-robux-redeem-codes_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/can-i-get-banned-from-a-roblox-game-for-cheating_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/prooving-that-how-to-get-free-cloths-e-free-roblox_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/how-can-i-get-minecraft-for-free_GM479516143.pdf
    • http://110.232.83.89/slimsppks/repository/free-robux-gift-card_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/how-to-change-your-name-on-roblox-for-free_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/coin-master-hack-using-cheat-engine_GM406889139.pdf
    • http://110.232.83.89/slimsppks/repository/coin-master-free-spins-link-no-verification-2021_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004f54.bin
7dcb911d20c7a9362f6abeb171212a6cc7603681aacd8ee8b49427bac3eb6e2c
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F54 25064 bytes
font_01_sfnt_off00008929.bin
69a556395cec4e9e0401a77c5ed889d9413c5e112f350c8ed7a2fe02fa3edd90
pdf-font-stream PDF embedded font (sfnt) at offset 0x8929 18688 bytes