Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e5912f1d2da8c47…

MALICIOUS

PDF

44.5 KB Created: 2021-05-20 00:38:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 9dd45225e3033166173436e4dca9542c SHA-1: 20db1b1f508646105c0fcff13c7b8dc5a99c7006 SHA-256: 0e5912f1d2da8c4720624a9b6a9d36fa45a7c3cda7a8e6e2f81bad5619bda7ba
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links to external websites, many of which are related to game hacks and free in-game currency. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of such links, suggesting a malicious intent to redirect users to potentially harmful sites. The presence of a 'download button' lure further supports this, aiming to trick users into clicking through to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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/431946152/roblox-fun-com-free-robux-game-hack
    • http://lib.pps.uin-suka.ac.id/repository/coin-master-free-spins-link-2021-march_GM406889139.pdf
    • http://lib.pps.uin-suka.ac.id/repository/como-hackear-coin-master-ios_GM406889139.pdf
    • http://lib.pps.uin-suka.ac.id/repository/archery-master-3d-apk-and-mod-free-download-unlimited-coins_GM406889139.pdf
    • http://lib.pps.uin-suka.ac.id/repository/how-to-get-minecraft-for-free-on-nintendo-switch_GM479516143.pdf
    • http://lib.pps.uin-suka.ac.id/repository/coin-master-free-cards-2021_GM406889139.pdf
    • http://lib.pps.uin-suka.ac.id/repository/coin-master-33-hack-version-download_GM406889139.pdf
    • http://lib.pps.uin-suka.ac.id/repository/how-do-you-hack-minecraft_GM479516143.pdf
    • http://lib.pps.uin-suka.ac.id/repository/minecraft-pe-hacks_GM479516143.pdf
    • http://lib.pps.uin-suka.ac.id/repository/how-to-get-hacks-on-minecraft_GM479516143.pdf
    • http://lib.pps.uin-suka.ac.id/repository/why-is-tiktok-free_GM835599320.pdf
    • http://lib.pps.uin-suka.ac.id/repository/huskybuckscom-free-robux_GM431946152.pdf
    • http://lib.pps.uin-suka.ac.id/repository/how-to-get-free-robux-on-pc_GM431946152.pdf
    • http://lib.pps.uin-suka.ac.id/repository/free-spins-on-coin-master_GM406889139.pdf
    • http://lib.pps.uin-suka.ac.id/repository/coin-master-free-spins-link-2021-today_GM406889139.pdf
    • http://lib.pps.uin-suka.ac.id/repository/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdf
    • http://lib.pps.uin-suka.ac.id/repository/free-robux-com-2021_GM431946152.pdf
    • http://lib.pps.uin-suka.ac.id/repository/minecraft-free-ios-no-verification_GM479516143.pdf
    • http://lib.pps.uin-suka.ac.id/repository/coin-master-cards-free-cards_GM406889139.pdf
    • http://lib.pps.uin-suka.ac.id/repository/free-spins-and-coins-on-coin-master_GM406889139.pdf
    • http://lib.pps.uin-suka.ac.id/repository/free-400-spins-coin-master_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004879.bin
c988b8f0e2bf26f69d9b3f80359937be32c8486fdc34aa8373b48744437d8c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x4879 24828 bytes
font_01_sfnt_off0000816b.bin
fd98c8f6e7c2e74bbd5822409159a93ac5c94da083ae4c2eb269d4284375f9e8
pdf-font-stream PDF embedded font (sfnt) at offset 0x816B 2836 bytes
font_02_sfnt_off00008b10.bin
9560f0e6f9a4e6be006083e3696e79311a38bb173f302534750988b281bae61f
pdf-font-stream PDF embedded font (sfnt) at offset 0x8B10 18348 bytes