Malicious PDF — malware analysis report

Static analysis result for SHA-256 25e2d52ef5a7022a…

MALICIOUS

PDF

49.1 KB Created: 2021-06-03 11:49:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: f8707dd552f90c3399c4e05175909e36 SHA-1: 19dfc2714c90f42b6c32a325d1a8aeba711adaf0 SHA-256: 25e2d52ef5a7022a33905ac8d238307edf2dfc7c17ed0195c18243273dac9817
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, many of which are related to game hacks and free in-game currency, indicating a phishing or scam attempt. The ML classifier strongly flagged this PDF as malicious, and the presence of a link farm further supports malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded links suggest it's designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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.online/app/431946152/whats-robux-game-hack
    • http://library.atim.ac.id/repository/is-minecraft-vr-free_GM479516143.pdf
    • http://library.atim.ac.id/repository/how-to-get-free-roblox-hair_GM431946152.pdf
    • http://library.atim.ac.id/repository/roblox-robux-giver-hack-download_GM431946152.pdf
    • http://library.atim.ac.id/repository/roblox-free-play-no-download_GM431946152.pdf
    • http://library.atim.ac.id/repository/is-minecraft-free-on-switch_GM479516143.pdf
    • http://library.atim.ac.id/repository/free-spins-and-coins-coin-master-2021_GM406889139.pdf
    • http://library.atim.ac.id/repository/coin-master-free-spins-fb_GM406889139.pdf
    • http://library.atim.ac.id/repository/how-do-you-get-free-roblox-money_GM431946152.pdf
    • http://library.atim.ac.id/repository/coin-master-free-spins-facebook_GM406889139.pdf
    • http://library.atim.ac.id/repository/roblox-generator_GM431946152.pdf
    • http://library.atim.ac.id/repository/coin-master-daily-free-spins-link-today-facebook_GM406889139.pdf
    • http://library.atim.ac.id/repository/free-spins-coin-master-hack-2021_GM406889139.pdf
    • http://library.atim.ac.id/repository/free-roblox_GM431946152.pdf
    • http://library.atim.ac.id/repository/how-can-you-get-free-robux_GM431946152.pdf
    • http://library.atim.ac.id/repository/robux-generators-that-actually-work_GM431946152.pdf
    • http://library.atim.ac.id/repository/free-coin-master-spins-2021_GM406889139.pdf
    • http://library.atim.ac.id/repository/get-free-spins-coin-master_GM406889139.pdf
    • http://library.atim.ac.id/repository/rbx-sites_GM431946152.pdf
    • http://library.atim.ac.id/repository/free-robux-promo-codes-2021_GM431946152.pdf
    • http://library.atim.ac.id/repository/free-robux-with-no-verification_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005261.bin
f25da406009f81f6b2e9b3d13362e6fbc4f0ee5ef1f4b768da131ea0a96c04a6		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5261 28428 bytes
font_01_sfnt_off00009299.bin
30dce2b9c1950da345d7fed8f00c38887adfa2f2ddecc31775af2315e819ac37		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9299 2840 bytes
font_02_sfnt_off00009c4c.bin
0f5696d834c6e2d92691ea88add56d1ebde531c0848fc2381b30e525a3a87f9e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9C4C 18548 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.