Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdb6deb9a0e8d9ad…

MALICIOUS

PDF

47.9 KB Created: 2021-06-03 11:03:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 619687966f0ffdb3db0b878035641547 SHA-1: f7463493b1d75e9a12fae9277438d17b6939708b SHA-256: fdb6deb9a0e8d9adb63aa25e51535fa0ae8e5a7ad6f79fd4531d70bb4051a6c3
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document impersonates Amazon to lure users into downloading a "Roblox Adopt Me Money Cheat Engine" or similar game hack from the provided URL. The ML classifier strongly flagged this PDF as malicious, and the embedded URL is associated with brand-impersonation credential phishing. While no scripts were extracted, the document's structure and embedded links suggest it is designed to facilitate the download of a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9871

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/431946152/roblox-adopt-me-money-cheat-engine-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/431946152/roblox-adopt-me-money-cheat-engine-game-hack PDF link annotation
    • http://digilibfisip.unla.ac.id/repository/coin-master-hack-co_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/where-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/daily-spin_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-roblox-clothes-for-your-avatar_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-hack-tool-no-human-verification_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-do-you-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/daily-free-spins-coin-master-heaven_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-roblox-app_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/hack-coin-master-no-verification_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-mod-apk-coin-master_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-glitch-on-xbox-one_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-roblox-clothes-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-gameplay_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-promo-code-2021_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.communes.comIn 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_off0000526c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x526C 29944 bytes
SHA-256: 83374322437183a26b4e7084e53ca370282787580ff9459af78235735a679ed3
font_01_sfnt_off00009578.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9578 19416 bytes
SHA-256: 04da8725d9ce61937486ee4c0391406b24f9496eb5d3a8e64f989e59ddc923b2

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