Malicious PDF — malware analysis report

Static analysis result for SHA-256 741233fc1214f8e5…

MALICIOUS

PDF

47.0 KB Created: 2021-05-15 05:30:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 85969560a7a0e4081b585619b285b440 SHA-1: df42e47ee00dd02eaf78292a7ae4be12a46c0a78 SHA-256: 741233fc1214f8e5debf5c4856b961869d089952d296b258768d40f4cc63692f
102 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 attract users searching for game cheats and hacks. The document body and extracted URLs suggest a lure for users seeking to cheat in games like Coin Master and Roblox, likely leading to malware downloads or phishing sites. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

Heuristics 4

  • 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.
  • 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/406889139/village-4-coin-master-game-hack
    • http://www.friendshiptransport.net/images/how-to-get-free-robux-on-ipad_GM431946152.pdf
    • http://www.friendshiptransport.net/images/coin-master-free-spins-link-2021-haktuts_GM406889139.pdf
    • http://www.friendshiptransport.net/images/coin-master-daily-rewards-link_GM406889139.pdf
    • http://www.friendshiptransport.net/images/how-do-you-get-free-roblox-money_GM431946152.pdf
    • http://www.friendshiptransport.net/images/hack-coin-master-no-survey_GM406889139.pdf
    • http://www.friendshiptransport.net/images/hack-de-coin-master_GM406889139.pdf
    • http://www.friendshiptransport.net/images/coin-master-free-spins-app_GM406889139.pdf
    • http://www.friendshiptransport.net/images/safe-hack-for-coin-master-android_GM406889139.pdf
    • http://www.friendshiptransport.net/images/coin-master-daily-free-spins-25_GM406889139.pdf
    • http://www.friendshiptransport.net/images/how-to-get-free-clothing-on-roblox_GM431946152.pdf
    • http://www.friendshiptransport.net/images/toolbox-apk_GM479516143.pdf
    • http://www.friendshiptransport.net/images/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdf
    • http://www.friendshiptransport.net/images/free-roblox-clothes-for-your-avatar_GM431946152.pdf
    • http://www.friendshiptransport.net/images/earn-free-robux-on-roblox_GM431946152.pdf
    • http://www.friendshiptransport.net/images/jailbreak-script_GM431946152.pdf
    • http://www.friendshiptransport.net/images/easy-how-to-get-free-robux_GM431946152.pdf
    • http://www.friendshiptransport.net/images/free-girl-hair-roblox_GM431946152.pdf
    • http://www.friendshiptransport.net/images/does-roblox-premium-expire_GM431946152.pdf
    • http://www.friendshiptransport.net/images/microsoft-rewards-roblox_GM431946152.pdf
    • http://www.friendshiptransport.net/images/free-minecraft-alt-accounts_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a09.bin
c94f83ce47506373f898d44aa6622d95c675ebee3cb85022e655fc6e86566633		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A09 29356 bytes
font_01_sfnt_off00008c0c.bin
3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C0C 2840 bytes
font_02_sfnt_off000095be.bin
4663c03cf6a7f36f606ed333490f7780d1655a74df360db77ae51fe1c1360529		 pdf-font-stream PDF embedded font (sfnt) at offset 0x95BE 18104 bytes

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