Malicious PDF — malware analysis report

Static analysis result for SHA-256 d049fcf397c94f81…

MALICIOUS

PDF

42.0 KB Created: 2021-05-13 12:02:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 7880bd99faf846be127b2717d2111814 SHA-1: ad3a48ae46869c6094d488239e62a993b9f684be SHA-256: d049fcf397c94f813d511fba60b9632cfde0e936c53f3b8ebcec119efaa74f80
142 Risk Score

Malware Insights

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

The document presents a fake CAPTCHA and requests secret recovery information, a strong indicator of a phishing or credential harvesting attempt. The embedded URLs, such as 'https://netcdn.xyz/app/406889139/coin-master-key-free-spin-game-hack', likely lead to malicious sites designed to exploit this lure. While no scripts were directly extracted, the PDF structure and heuristics suggest it's designed to trick users into executing further malicious actions.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 5

  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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/406889139/coin-master-key-free-spin-game-hack
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/minecraft-bedrock-edition-hacks_GM479516143.pdf
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/coin-master-free-spins-link-2021-today_GM406889139.pdf
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/roblox40com-robux_GM431946152.pdf
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/minecraft-hack-2021_GM479516143.pdf
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/robux-codes-generator-no-human-verification_GM431946152.pdf
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/free-robux-no-generator_GM431946152.pdf
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/how-to-get-free-hair-on-roblox-2021_GM431946152.pdf
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/hack-coin-master-free-spins_GM406889139.pdf
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/how-to-get-free-robux-in-2021_GM431946152.pdf
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/hack-coin-master-apk-ios_GM406889139.pdf
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/free-robux-android_GM431946152.pdf
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/how-to-get-free-robux-without-any-verification_GM431946152.pdf
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/minecraft-xbox-360-free-download-code_GM479516143.pdf
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/impact-minecraft-hack_GM479516143.pdf
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/how-to-get-free-cards-on-coin-master_GM406889139.pdf
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/get-me-free-robux_GM431946152.pdf
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/cm-free-spins-and-coins_GM406889139.pdf
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/robux-com-free_GM431946152.pdf
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/coin-master-daily-free-link_GM406889139.pdf
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/lazyblocks-com-free-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a59.bin
d5f70a2e32b856cbfc1e32a53d3378ef8d27485f219a9c47b8178b06b3d838e8		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A59 24752 bytes
font_01_sfnt_off0000827e.bin
a6c3c2eaeb9c71a1b96726afd9ac8ab3bac257b8360e25a1b58d00314c5a1876		 pdf-font-stream PDF embedded font (sfnt) at offset 0x827E 18068 bytes

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