Malicious PDF — malware analysis report

Static analysis result for SHA-256 1de99682a872343d…

MALICIOUS

PDF

43.1 KB Created: 2021-05-15 22:40:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: e60df32661b890ccf976af81c2f66500 SHA-1: 7597fde5a496c0fd096f8bd65cb1d96c5a2c0374 SHA-256: 1de99682a872343defdebef327808a5e012b566cb2ae54470723533259a3e9db
142 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which are SEO-optimized slugs pointing to game-related hacks and currency generators. The presence of a 'password-protected archive handoff' heuristic suggests the document may be a lure to download a password-protected file, which often contains malware. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 5

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/479516143/free-minecraft-bedrock-server-game-hack
    • http://library.unissula.ac.id/fk//repository/robux-generator-no-human-verification-or-survey_GM431946152.pdf
    • http://library.unissula.ac.id/fk/repository/coin-master-free-spin-realme-products_GM406889139.pdf
    • http://library.unissula.ac.id/fe/repository/how-to-get-free-robux-games_GM431946152.pdf
    • http://library.unissula.ac.id/fe/repository/coin-master-online-hack-no-survey-no-password_GM406889139.pdf
    • http://library.unissula.ac.id/fe/repository/free-google-play-promo-codes-coin-master_GM406889139.pdf
    • http://library.unissula.ac.id/fk/repository/coin-master-32-mod-hack-unlimited_GM406889139.pdf
    • http://library.unissula.ac.id/fk/repository/minecraft-pe-apk-download_GM479516143.pdf
    • http://library.unissula.ac.id/fk/repository/free-robux-no-verify_GM431946152.pdf
    • http://library.unissula.ac.id/fe/repository/rbxcity-free-robux_GM431946152.pdf
    • http://library.unissula.ac.id/fe/repository/free-roblox-accounts-2021_GM431946152.pdf
    • http://library.unissula.ac.id/fk//repository/is-there-an-actual-hack-that-work-for-coin-master_GM406889139.pdf
    • http://library.unissula.ac.id/fe/repository/classic-minecraft-net-hacks_GM479516143.pdf
    • http://library.unissula.ac.id/fk/repository/coin-master-free-spins-deutsch-download-ios-link_GM406889139.pdf
    • http://library.unissula.ac.id/fk/repository/free-coin-and-spin-in-coin-master_GM406889139.pdf
    • http://library.unissula.ac.id/fk//repository/robux-prices_GM431946152.pdf
    • http://library.unissula.ac.id/fk/repository/free-robux-sites-2021_GM431946152.pdf
    • http://library.unissula.ac.id/fk//repository/free-robux-live_GM431946152.pdf
    • http://library.unissula.ac.id/fe/repository/coin-master-hack-unlimited-spins-apk_GM406889139.pdf
    • http://library.unissula.ac.id/fk/repository/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdf
    • http://library.unissula.ac.id/fe/repository/coin-master-latest-mod-apk-free-download_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004d20.bin
91d057341f35a170ef4c3243c9704974599cd2af9ff765c0b06541eb36c4f628		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D20 24728 bytes
font_01_sfnt_off000085bf.bin
91126a517b1f6fe08fde59393e56e1de7cf034d0066f3393bf7fbc33808ed0e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85BF 18384 bytes

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