Malicious PDF — malware analysis report

Static analysis result for SHA-256 096a610e6ebf16ea…

MALICIOUS

PDF

51.2 KB Created: 2021-06-03 14:32:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 50e93e220417c5d3ea725b1896c78741 SHA-1: 72d91521ca5d5388104ee17d5a36dd3194a04366 SHA-256: 096a610e6ebf16eadfdd912a4a90fc2830aa35fcec3850c200bd51ebe716f98b
82 Risk Score

Malware Insights

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

The document contains a lure for "Coin Master Free Spins Hack" and impersonates a brand, directing users to a suspicious URL. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent, likely to phish credentials or deliver a secondary payload. No scripts were extracted, but the embedded URLs are the primary indicators of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9713

Heuristics 4

  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.online/app/406889139/coin-master-free-spins-hack-no-human-verification-game-hack.
  • 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.online/app/406889139/coin-master-free-spins-hack-no-human-verification-game-hack PDF link annotation
    • https://library.fdk.ac.id/repository/minecraft-server-hacks_GM479516143.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/how-to-get-free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/how-to-get-free-robux-on-chromebook_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/google-roblox-free-hats_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/coin-master-free-spin-no-offers_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/coin-master-spin-link-today-free_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/free-download-coin-master_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/minecraft-name-tag-hacks_GM479516143.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/how-to-get-java-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/free-robux-microsoft_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/how-to-get-minecraft-for-free-ios_GM479516143.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/how-to-get-more-robux-for-free_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/robux-hack_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/coin-master-daily-spins_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/free-robux-co_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/roblox-arsenal-hacks-download_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005451.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5451 24948 bytes
SHA-256: 92fd9a08a2e14b9bf64799bf84525249831b12263d17f15008edf283345d5090
font_01_sfnt_off00008cd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CD5 4028 bytes
SHA-256: 6a4891da4f8b73c02e22ecd6fa566d6bb4f5f2d5575b30a343f3d3c5e0919267
font_02_sfnt_off00009a78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A78 2788 bytes
SHA-256: 6fd7c7f447d66842f81aa8cf197935b17f22157d0c7e9f95622df1b5b4ddf530
font_03_sfnt_off0000a468.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA468 18588 bytes
SHA-256: 081cdec62be70198d45fc172e7048a56943a6446be15e687158c1977e2c6d250