Malicious PDF — malware analysis report

Static analysis result for SHA-256 76222c45918f263e…

MALICIOUS

PDF

33.0 KB Created: 2021-07-04 18:32:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 2643e2a981f6273c81720e9d39397e63 SHA-1: d608d1cd39c148129ec92f1226ba224f6a5745c9 SHA-256: 76222c45918f263e25a7d7dd9632ecf1e0836128d511c050265c2b75c1001900
102 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links to external websites, many of which are related to obtaining free game currency or hacks. The ML classifier and PDF link farm heuristics strongly indicate malicious intent. The document body and extracted URLs suggest a phishing or scam attempt to trick users into visiting potentially malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/479516143/how-do-you-get-minecraft-for-free-game-hack
    • http://sttlets.education/senayan//repository/coin-master-daily-free-spins-link-march-2021_GM406889139.pdf
    • http://sttlets.education/senayan/repository/can-you-get-minecraft-for-free_GM479516143.pdf
    • http://sttlets.education/senayan/repository/pig-master-free-coins-and-spins_GM406889139.pdf
    • http://sttlets.education/senayan//repository/can-you-still-get-minecraft-windows-10-for-free_GM479516143.pdf
    • http://sttlets.education/senayan/repository/coin-master-hack-apk-download_GM406889139.pdf
    • http://sttlets.education/senayan//repository/rbxcity-free-robux_GM431946152.pdf
    • http://sttlets.education/senayan/repository/coin-master-free-spins-hack-without-human-verification_GM406889139.pdf
    • http://sttlets.education/senayan/repository/free-robux-codes-generator_GM431946152.pdf
    • http://sttlets.education/senayan/repository/minecraft-free-unblocked_GM479516143.pdf
    • http://sttlets.education/senayan/repository/free-roblox-adopt-me-pets_GM431946152.pdf
    • http://sttlets.education/senayan/repository/hack-to-get-free-robux-easy_GM431946152.pdf
    • http://sttlets.education/senayan/repository/roblox-fashion-frenzy-cheats_GM431946152.pdf
    • http://sttlets.education/senayan/repository/roblox-how-to-change-your-name-for-free-2021_GM431946152.pdf
    • http://sttlets.education/senayan/repository/how-to-get-free-premium-roblox_GM431946152.pdf
    • http://sttlets.education/senayan/repository/roblox-top_GM431946152.pdf
    • http://sttlets.education/senayan/repository/pubg-uc-rate-in-pakistan_GM1330123889.pdf
    • http://sttlets.education/senayan/repository/roblox-god-mode-hack-script_GM431946152.pdf
    • http://sttlets.education/senayan/repository/doctor-louie-roblox_GM431946152.pdf
    • http://sttlets.education/senayan/repository/free-bc-roblox-accounts-2021_GM431946152.pdf
    • http://sttlets.education/senayan/repository/free-robux-for-roblox-generator-no-human-vertification_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002d8c.bin
0cd9df9c703fcd70eaf4db9ff65f234f8e95586a0c1f0876fa526cc95d70db8d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D8C 21836 bytes
font_01_sfnt_off00005d59.bin
e84ad285f341e438f0b586e1c1e30148e409f2a1e76744d3c2f453220977198e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D59 18632 bytes

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