PDF static analysis report

Static analysis result for SHA-256 7877489e9508c388…

SUSPICIOUS

PDF

42.0 KB Created: 2021-05-19 18:43:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: db8acdae4afd70c62f4251f0046da36d SHA-1: 0af854947511edf4edbc2422b99634645e0890eb SHA-256: 7877489e9508c388062143d66986c870dd9d71c50e0ed6973f832cab5578b088
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains an embedded URI pointing to a suspicious URL, and a visual download button lure. The ML classifier also flagged this PDF as malicious with high confidence. While no scripts were explicitly extracted, the presence of embedded URIs and the lure suggest an attempt to trick the user into downloading a second-stage payload, likely related to game cheats or scams.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 3

  • 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/no-robux-game-hack PDF link annotation
    • http://korporacjaroma.pl/images/minecraft-games-free-download_GM479516143.pdfIn PDF document text
    • http://korporacjaroma.pl/images/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://korporacjaroma.pl/images/free-roblox-toy-codes_GM431946152.pdfIn PDF document text
    • http://korporacjaroma.pl/images/how-to-get-free-coins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://korporacjaroma.pl/images/coin-master-35-16-hack-apk_GM406889139.pdfIn PDF document text
    • http://korporacjaroma.pl/images/coin-master-hack-version-33-2_GM406889139.pdfIn PDF document text
    • http://korporacjaroma.pl/images/roblox-sexually-abused_GM431946152.pdfIn PDF document text
    • http://korporacjaroma.pl/images/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • http://korporacjaroma.pl/images/free-spins-for-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
    • http://korporacjaroma.pl/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://korporacjaroma.pl/images/how-can-i-get-free-coinsn-coin-master_GM406889139.pdfIn PDF document text
    • http://korporacjaroma.pl/images/what-is-robux-in-roblox_GM431946152.pdfIn PDF document text
    • http://korporacjaroma.pl/images/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://korporacjaroma.pl/images/coin-master-hack-apk-july-29_GM406889139.pdfIn PDF document text
    • http://korporacjaroma.pl/images/coin-master-free-spins-generator-no-verification_GM406889139.pdfIn PDF document text
    • http://korporacjaroma.pl/images/free-spin-gratis-coin-master_GM406889139.pdfIn PDF document text
    • http://korporacjaroma.pl/images/hack-to-protect-village-on-coin-master_GM406889139.pdfIn PDF document text
    • http://korporacjaroma.pl/images/how-to-hack-roblox-accounts-passwords_GM431946152.pdfIn PDF document text
    • http://korporacjaroma.pl/images/coin-master-links-for-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://korporacjaroma.pl/images/send-me-500-2021-spins_GM406889139.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_003_off0000481d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x481D 25668 bytes
SHA-256: 97353700591aed2d88df2c12f854a7191c2606488a3628ffd5f72f7265bbbc5e
font_01_sfnt_off0000830d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x830D 17852 bytes
SHA-256: 096069712db6b5d6732bcb1e197377aec390e00cd57ea8fb2786eb315a05e75d