Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb36879fbfd0ff29…

MALICIOUS

PDF

43.9 KB Created: 2021-06-13 15:07:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 165a6a525cb08de2650bafbbea9ef377 SHA-1: 66d85b81de3d446a64ceeb8fa273de38d8581289 SHA-256: bb36879fbfd0ff2909f854c15dfe2fad61254490572ef29b36b66b66b4ed3a45
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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.co/app/431946152/how-to-get-free-robux-immediately-game-hack PDF link annotation
    • http://katalog.stikesmukla.ac.id/repository/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/roblox-hack-in-jailbreak-2021_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/coin-master-free-download-for-pc_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/roblox-free-wings_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/free-roblox-hack-generator_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/roblox-account-hacker-tool_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/free-backpack-roblox-catolog_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/how-to-download-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/how-to-hack-coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/hack-master-coin_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/paginas-de-hacks-para-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/android-coin-master-3433-apk-hack_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/how-to-get-free-tiktok-fans-without-human-verification_GM835599320.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/coin-master-hack-cydia_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/can-you-still-make-free-roblox-shirts_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/mcpe-master-unlimited-coins-hack-apk_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/free-robux-master_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_004_off00004eec.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4EEC 24184 bytes
SHA-256: 1449d3428034e2db15458b900f8198e372620d4109bd5078f75398b3b3ff9a46
font_01_sfnt_off000085ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85AD 19316 bytes
SHA-256: 0eecb6206fda1ee8340c743ee5565a33f1faefcb2bcec31288f534be3dd83b06

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