Malicious PDF — malware analysis report

Static analysis result for SHA-256 724fad29f58e47fa…

MALICIOUS

PDF

35.5 KB Created: 2021-07-06 08:37:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: b71b5d732c4c92dd52b4a8a97f7d0203 SHA-1: 7bd8fdff8eded0e55e6e861d299b360e6124dc66 SHA-256: 724fad29f58e47fa187ffd839c7ada13c0b42235e7faa5e849baa2051ac474b9
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a call-to-action lure, suggesting it is designed to trick users into downloading malicious files. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs further supports a malicious intent. The document body and embedded URLs indicate a lure related to game hacks and in-game currency.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/406889139/coin-master-gold-cards-free-game-hack PDF link annotation
    • http://library.forda-mof.org/katalog/repository/roblox-com-free-play_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/download-hacked-games-coin-master_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-coins-free_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-robux-discord-servers_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-get-free-robux-august-2021_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/minecraft-pocket-edition-free-apk_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/roblox-murder-mystery-2-wls-3-hack_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-free-spins-and-free-coins_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/xray-mod-minecraft-114_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/rbx-free-robux_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-roblox-app_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/roblox-free-glasses_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-pc-hack_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/minecraft-hacks-list_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-get-free-robux-2021-yt_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-hack-tool-v1-9_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/minecraft-ore-finder-mod_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-hack-roblox-accounts-passwords_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_002_off0000327b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x327B 23720 bytes
SHA-256: 80de16a4d61e454ee1e9b03c043489bce711ec1cbbb7160649166ee6d15d4da7
font_01_sfnt_off00006852.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6852 18244 bytes
SHA-256: 48a6224546dace306e4a963a80d10831842d0a6556a08514189d512710164b26

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