Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d473d97a7c70ebd…

MALICIOUS

PDF

43.9 KB Created: 2021-05-11 00:02:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 9ac8b308340b7539fdb5ea3c7ae082cf SHA-1: b22459c5236f73acbf8bca1f1a3aa21b0e17b7ab SHA-256: 1d473d97a7c70ebd88a98cadd97976a6b37aa4e37de9f4469b98886d801e8c0b
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains a lure for free in-game items and requests sensitive recovery secrets, strongly indicating a phishing or scam attempt. The embedded URL, https://netcdn.xyz/app/406889139/get-free-spins-coin-master-2021-game-hack, likely leads to the malicious payload or scam page. While no scripts were explicitly extracted, the PDF structure and heuristics suggest it's designed to exploit user interest in game-related cheats.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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/get-free-spins-coin-master-2021-game-hack PDF link annotation
    • https://elibrary.ikhac.ac.id/repository/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/androeed-ru-minecraft_GM479516143.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-dominus-roblox_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/is-there-any-tricks-or-working-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/roblox-games-com-free_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/how-to-get-free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-spins-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/minecraft-free-download-iphone_GM479516143.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/coin-master-download_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/coin-master-hack-no-verify_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/coin-master-hack-ios-cydia_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/how-to-make-a-minecraft-pe-server-for-free_GM479516143.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-coin-master-spins-blogger_GM406889139.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_off0000499d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x499D 28524 bytes
SHA-256: 4f53df837d3fc7269ade9dd16d12629ee1ba44f7b040f36f2d0317e2966d3eb6
font_01_sfnt_off0000897b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x897B 18288 bytes
SHA-256: b38ddf3080d7f2bc752da259c3b03eae0df146b085052c6419baf797dcf0dadb

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