Malicious PDF — malware analysis report

Static analysis result for SHA-256 feb41e3e07d2385b…

MALICIOUS

PDF

35.5 KB Created: 2021-07-04 19:03:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 925eda2935b1c143de1ea5bfb1a1fa7f SHA-1: 37fa50ab3bca41c6e7c346c33205076bb681fc72 SHA-256: feb41e3e07d2385bdc4ee393ac7896b648f04a02612982ea632820116bcacc5f
102 Risk Score

Malware Insights

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

This PDF document contains a large number of embedded links, many of which point to websites offering hacks, cheats, and generators for popular games like Coin Master and Roblox. The heuristic 'PDF_SEO_LINK_FARM' indicates a deliberate attempt to create a link farm, likely for SEO manipulation or to distribute potentially unwanted applications. The presence of a 'download button' lure further supports the malicious intent of directing users to external, untrusted resources.

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/406889139/coin-master-hack-apk-35-18-game-hack PDF link annotation
    • http://lib.fisipumt.ac.id//repository/coin-master-hack-tool-apk-download_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-dragon-ball-z-final-stand-cheat_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/tiktok-likes-free_GM835599320.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-how-to-get-japan-sushi-card-free_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-save-hacked-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/how-to-download-minecraft-for-free-on-android_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-hack-commands-admin_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-gold-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-spins-coin-master-cheat_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-coin_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/minecraft-hacked-client-download_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-play-online-free_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/minecraft-complete-handbook_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-hack-mcpe-master-coins_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-get-anything-on-roblox-catalog-for-free_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-that-has-no-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/minecraft-free-games-no-download_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/is-john-doe-a-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000032d9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32D9 22868 bytes
SHA-256: 2c5e0562ea4bd483d022c9574e1a3a96f7f6d30e0e4d339556949fd1ceed2c53
font_01_sfnt_off0000664f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x664F 18804 bytes
SHA-256: aac05d6177a90b60b5ec55135024cf4c2d0f170c36ca73a7d8cfbc5a1b3be2be

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