Malicious PDF — malware analysis report

Static analysis result for SHA-256 868fa376ad506d03…

MALICIOUS

PDF

34.9 KB Created: 2021-07-09 07:45:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 073766d346676e058bd14b00d76062db SHA-1: bfe90ababe6eda783733dda650775a1df74aa22c SHA-256: 868fa376ad506d030c6ce44899330e38233a813f4bd1e03ba05b0a2ac5339eed
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple embedded URLs, some pointing to IP addresses, that advertise free game-related content and hacks. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs and a call-to-action button heuristic further supports a malicious intent to trick users into downloading further content. The document body itself contains obfuscated text and URLs related to popular games, reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/479516143/play-minecraft-free-online-no-download-game-hack
    • http://110.232.83.89/slimsppks/repository/free-spins-for-coin-masters_GM406889139.pdf
    • http://110.232.83.89/slimsppks/repository/coin-master-free-cards-link-2021_GM406889139.pdf
    • http://110.232.83.89/slimsppks/repository/roblox-prison-life-hack_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/coin-master-free-spins-link-download_GM406889139.pdf
    • http://110.232.83.89/slimsppks/repository/free-spin-coin-master-twitter_GM406889139.pdf
    • http://110.232.83.89/slimsppks/repository/free-minecraft-bedrock_GM479516143.pdf
    • http://110.232.83.89/slimsppks/repository/is-minecraft-free_GM479516143.pdf
    • http://110.232.83.89/slimsppks/repository/free-robux-gift-card-codes-2021_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/free-girl-hair-roblox_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/free-minecraft-account-list_GM479516143.pdf
    • http://110.232.83.89/slimsppks/repository/best-roblox-hacks-2021_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/roblox-points_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/how-do-you-get-free-robux_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/roblox-hack-vehicle-simulator_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/roblox-login-hack_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/free-coin-master-spins-for-today_GM406889139.pdf
    • http://110.232.83.89/slimsppks/repository/free-800-robux_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/how-to-make-free-robux_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/free-robux-no-human-verification-no-downloading-apps_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030a2.bin
cd5306d8cb9f2d7d9163f72831c362873b145735844adf74515079774898c9fe
pdf-font-stream PDF embedded font (sfnt) at offset 0x30A2 22828 bytes
font_01_sfnt_off000063d8.bin
346cb213616b37d36555fcb51ba59473eedb80dae61f7accaa613951a8f90450
pdf-font-stream PDF embedded font (sfnt) at offset 0x63D8 18912 bytes