Malicious PDF — malware analysis report

Static analysis result for SHA-256 b8b964f5d0e3afc5…

MALICIOUS

PDF

46.1 KB Created: 2021-06-08 16:10:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 7c7b0992917d0b1bc1b9dc5fc962d68f SHA-1: d55d0d85cbb5d2ff3b3df777d3913610afe297d4 SHA-256: b8b964f5d0e3afc51be0a9b158042b9a6aa8fbc43e823c049612cb4c6d30fed7
82 Risk Score

Malware Insights

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

The PDF document contains a lure for a 'Roblox Rhythm Track Hack' and impersonates the 'DhL' brand. It directs users to a suspicious URL, 'https://netcdn.tw/app/431946152/roblox-rhythm-track-hack-game-hack', which is likely intended to deliver a malicious payload. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.tw/app/431946152/roblox-rhythm-track-hack-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.tw/app/431946152/roblox-rhythm-track-hack-game-hack PDF link annotation
    • https://library.stikeswnpalu.ac.id/repository/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/how-to-get-minecraft-java-for-free_GM479516143.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/how-to-get-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/best-hack-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/hack-coin-master-no-survey_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/minecraft-free-school_GM479516143.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/free-2021-robux_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/minecraft-free-download-ios_GM479516143.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/how-to-get-free-golden-card-in-coin-master_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/how-to-get-robux-without-paying_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/how-do-i-earn-robux_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/minecraft-free-download-unblocked_GM479516143.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/free-spin-coin-master-twitter_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/free-t-shirt-roblox_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/free-roblox-account-generator-obc_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/hack-coin-master-game-download_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/tower-of-hell-roblox-hack_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000511c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x511C 27576 bytes
SHA-256: ff235e3258b9328700f583062cebc015356e734ecd25861ee3a6bfa0293a98fb
font_01_sfnt_off00008fff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FFF 18892 bytes
SHA-256: ce44e54af166f10a1ab43fbccfb6ff5dcd23c6f905eb54aee886d326a799ae4e

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