Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3c29bd0e6e777e1…

MALICIOUS

PDF

41.8 KB Created: 2021-05-12 00:31:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 27601d41778233db5564013e3145f871 SHA-1: ef921d1b92302db59e7662469b4c7e0c1d6cd694 SHA-256: c3c29bd0e6e777e106ef7752b5ae2055c61ae162facd52576e053e9fb21766fd
102 Risk Score

Malware Insights

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

The document contains a lure for downloading an application, specifically mentioning 'hack coin master apk' and providing multiple URLs for downloads. The heuristic 'SE_SECRET_RECOVERY_LURE' indicates the document may also attempt to phish for sensitive credentials. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to trick users into downloading malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/download-hack-coin-master-apk-game-hack
    • http://wsit.at/images/get-free-robux-info_GM431946152.pdf
    • http://wsit.at/images/how-to-get-free-coins-in-coin-master_GM406889139.pdf
    • http://wsit.at/images/how-to-get-free-robux-on-roblox-2021_GM431946152.pdf
    • http://wsit.at/images/get-free-robux-2021_GM431946152.pdf
    • http://wsit.at/images/free-robux-redeem-codes-2021_GM431946152.pdf
    • http://wsit.at/images/mcpe-master-free-coins_GM406889139.pdf
    • http://wsit.at/images/can-i-get-minecraft-windows-10-for-free_GM479516143.pdf
    • http://wsit.at/images/free-roblox-hack_GM431946152.pdf
    • http://wsit.at/images/coin-master-free-spins-iphone_GM406889139.pdf
    • http://wsit.at/images/coin-master-free-spin-link-app_GM406889139.pdf
    • http://wsit.at/images/free-spin-coin-master-app-download_GM406889139.pdf
    • http://wsit.at/images/robux-no-human-verification-2021_GM431946152.pdf
    • http://wsit.at/images/free-robux-stream_GM431946152.pdf
    • http://wsit.at/images/blox-world-free-robux_GM431946152.pdf
    • http://wsit.at/images/blox-fish-free-robux_GM431946152.pdf
    • http://wsit.at/images/free-card-collection-in-coin-master_GM406889139.pdf
    • http://wsit.at/images/free-minecraft-codes-2021_GM479516143.pdf
    • http://wsit.at/images/coin-drop-master-free_GM406889139.pdf
    • http://wsit.at/images/how-to-get-free-roblox-gift-cards_GM431946152.pdf
    • http://wsit.at/images/freerubux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000474b.bin
affb3c3a75a5317e9ac23c38933a3d16fe9f0d16e363392184a228555bef5191		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x474B 25208 bytes
font_01_sfnt_off00008075.bin
48f2fb6a54f4a1d4da48af3cad9101beb926a58239587b90eb535e02f3a3ea4e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8075 18472 bytes

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