Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb1fc23f6b267d9e…

MALICIOUS

PDF

45.2 KB Created: 2021-06-11 06:54:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: db2a8e75c54c51c2c3ad6e1ebea3ffb8 SHA-1: b17ae4ffbeeb8595aefbbb42f0d6a421be682a52 SHA-256: cb1fc23f6b267d9ee2413139a9f90ba6340945b0c8cafbb4439868ccce2cb2cf
82 Risk Score

Malware Insights

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

This PDF document contains embedded URLs and heuristics indicating it is designed to lure users into downloading potentially malicious files, such as game hacks. The presence of an MFA lure suggests an attempt to harvest credentials or session tokens. No scripts were extracted, but the document's structure and embedded links point towards a phishing or credential harvesting attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

Heuristics 4

  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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/free-admin-roblox-script-game-hack PDF link annotation
    • https://lib.unitri.ac.id//repository/how-to-get-free-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/free-card-collection-in-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/coin-master-games-hack_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/robux-free-co_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/coin-master-cheats_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/spin-link_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/coin-master-free-spins-link-haktuts_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/coin-master-unlimited-spin-hack-apk_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/coin-master-hack-tool_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/coin-master-tiradas-gratis-link_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/tiktok-free-invitation_GM835599320.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/roblox-hack-scripts-pastebin_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/roblox-all-free-items-2021_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/free-coins-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/instantrobux_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
font_00_sfnt_off00005328.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5328 25284 bytes
SHA-256: f4914c35158d16a733abe01a4f0e6984ee12d8ae6f252141579c43e517d53a1c
font_01_sfnt_off00008cae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CAE 18784 bytes
SHA-256: b9beac6a03e5607d4975f4bc64adee5195134676ddd45a07c10267523a15bad9

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