Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d202bc8c15aae2c…

MALICIOUS

PDF

45.5 KB Created: 2021-06-10 21:27:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 2be516ac1063c562cb4f6384a33e805a SHA-1: 455ce9e943bddde06211a92f5407d185d3960c43 SHA-256: 4d202bc8c15aae2c4edbba930f41eb94de09bc0e7848ddd74e15c8fbe9390e07
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document uses a lure related to game hacks (Roblox) to entice users to click on embedded links. The presence of a password protection lure suggests that the document is intended to conceal a malicious payload, likely downloaded via the embedded URLs. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

Heuristics 4

  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/todos-los-hacks-de-check-casher-v3-roblox-prision-life-game-hack PDF link annotation
    • http://abdinusababellibrary.ac.id//repository/tiktok-free-view-59_GM835599320.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/coin-master-free-spins-link-download-today_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/hacked-roblox-accounts-list_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/roblox-booga-booga-hack_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/free-robux-app_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/free-roblox-account-generator_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id/repository/el-mejor-hack-de-roblox-del-mundio-201_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id/repository/free-minecraft-website_GM479516143.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/coin-master-332-apk-free-download_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id/repository/free-robux-no-password_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id/repository/roblox-hacking-account-program_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/coin-master-free-stuff-links_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/roblox-tix-generator_GM431946152.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_004_off0000538b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x538B 24888 bytes
SHA-256: e493e7fd65e5e6913805dfa6fd046acfe2fa123800ef31d19c86761f03b12c1a
font_01_sfnt_off00008c4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C4A 19272 bytes
SHA-256: e2b0fa7756c91d52fdce68c5ee8065e6fdd4af6cbf32b47abd45e62e89acf518

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