Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fb326de7bca7adc…

MALICIOUS

PDF

43.4 KB Created: 2021-05-13 18:12:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: a4f1ba607a6003513309f715779e28e9 SHA-1: 475455715c25ae71267fcf5e4fbdca517fbf7d8b SHA-256: 0fb326de7bca7adc7e7278eabedd5c41c0e2a1c8102e7ad8a599aca977a45745
82 Risk Score

Malware Insights

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

The document contains a high-confidence ML classification for maliciousness and includes heuristics indicating a payment redirection lure and a visual download button. The embedded URLs and document body text strongly suggest a lure for downloading an application, likely related to game cheats or in-game currency, which is a common social engineering tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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.xyz/app/406889139/coin-master-free-spin-download-game-hack PDF link annotation
    • http://kishplus.ir/images/roblox-hax_GM431946152.pdfIn PDF document text
    • http://kishplus.ir/images/how-to-make-clothes-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://kishplus.ir/images/free-robux-that-actually-works_GM431946152.pdfIn PDF document text
    • http://kishplus.ir/images/free-minecraft-gift-codes_GM479516143.pdfIn PDF document text
    • http://kishplus.ir/images/rbxoffer-com-free-robux_GM431946152.pdfIn PDF document text
    • http://kishplus.ir/images/how-to-install-minecraft-for-free-on-ios_GM479516143.pdfIn PDF document text
    • http://kishplus.ir/images/coin-master-free-coins-and-spins-link-today_GM406889139.pdfIn PDF document text
    • http://kishplus.ir/images/corn-master_GM406889139.pdfIn PDF document text
    • http://kishplus.ir/images/real-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://kishplus.ir/images/free-admin-roblox_GM431946152.pdfIn PDF document text
    • http://kishplus.ir/images/freespinandcoin-blogspot-coin-master_GM406889139.pdfIn PDF document text
    • http://kishplus.ir/images/coin-master-offline-hack_GM406889139.pdfIn PDF document text
    • http://kishplus.ir/images/how-to-get-2021-robux-for-free_GM431946152.pdfIn PDF document text
    • http://kishplus.ir/images/roblox-got-talent-piano-hack_GM431946152.pdfIn PDF document text
    • http://kishplus.ir/images/coin-master-free-spins-1701-20_GM406889139.pdfIn PDF document text
    • http://kishplus.ir/images/how-to-get-more-robux-for-free_GM431946152.pdfIn PDF document text
    • http://kishplus.ir/images/coin-master-hack-version-apk-download_GM406889139.pdfIn PDF document text
    • http://kishplus.ir/images/minecraft-java-free-download_GM479516143.pdfIn PDF document text
    • http://kishplus.ir/images/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://kishplus.ir/images/a-lot-of-robux_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_003_off00004a14.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A14 26648 bytes
SHA-256: 8653ab089acc8d8af4740a23f9196b4b37f33ae2f678155d5fff8cb61a5ed8b0
font_01_sfnt_off000086e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86E4 18464 bytes
SHA-256: d2049980b499644707db7dbba33f42fd49626c5cebf4a87bca5165b0820086b7

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