Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbfc8757b12fde0e…

MALICIOUS

PDF

43.1 KB Created: 2021-05-16 12:45:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 10d46fb7871d232d2e223847fc62269e SHA-1: 3b2f4f1824d9142afd5637a478af94bb3864bc65 SHA-256: dbfc8757b12fde0e364d8ba9c369bfd27565c89f70edb84ce8d4f3ecd27cd031
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains multiple embedded URLs and a prominent external URI pointing to sites offering game cheats and hacks, which is a common lure for malware distribution. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' suggests the document may be part of a multi-stage attack where a password is provided to decrypt a malicious payload. The ML classifier strongly flagged this PDF as malicious, indicating a high probability of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/406889139/coin-master-free-spins-hack-but-no-surveys-game-hack
    • http://leagueforwomenrights.gr/images/twitter-coin-master-free-spins_GM406889139.pdf
    • http://leagueforwomenrights.gr/images/coin-master-hack-2021-free_GM406889139.pdf
    • http://leagueforwomenrights.gr/images/how-to-make-a-free-minecraft-account_GM479516143.pdf
    • http://leagueforwomenrights.gr/images/free-minecraft-java-edition-codes_GM479516143.pdf
    • http://leagueforwomenrights.gr/images/minecraft-hacks-18-9_GM479516143.pdf
    • http://leagueforwomenrights.gr/images/coin-master-generator-free_GM406889139.pdf
    • http://leagueforwomenrights.gr/images/coin-master-gameplay_GM406889139.pdf
    • http://leagueforwomenrights.gr/images/demon-roblox_GM431946152.pdf
    • http://leagueforwomenrights.gr/images/minecraft-free-download-mac-full-version-2021_GM479516143.pdf
    • http://leagueforwomenrights.gr/images/free-robux-with-no-verification_GM431946152.pdf
    • http://leagueforwomenrights.gr/images/http-appsmob-info-coin-master-hack_GM406889139.pdf
    • http://leagueforwomenrights.gr/images/coin-master-free-spin-ml_GM406889139.pdf
    • http://leagueforwomenrights.gr/images/minecraft-free-demo_GM479516143.pdf
    • http://leagueforwomenrights.gr/images/how-to-get-free-daily-spins-on-coin-master_GM406889139.pdf
    • http://leagueforwomenrights.gr/images/free-spins-and-coins-coin-master-facebook_GM406889139.pdf
    • http://leagueforwomenrights.gr/images/haktuts-coin-master_GM406889139.pdf
    • http://leagueforwomenrights.gr/images/coin-master-hack-spins-app_GM406889139.pdf
    • http://leagueforwomenrights.gr/images/minecraft-pe-free-download_GM479516143.pdf
    • http://leagueforwomenrights.gr/images/free-robux-offers_GM431946152.pdf
    • http://leagueforwomenrights.gr/images/how-to-hack-someones-roblox-account-2021_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000048d0.bin
e749be13a8d39935df8109340bf8a4debf0824f07fe5381951be7552b8caff97
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48D0 26436 bytes
font_01_sfnt_off000084c0.bin
e0937bcd33a3b629f0687db8d98eacd8293f1078019919402bc9ac6e2a33e1b3
pdf-font-stream PDF embedded font (sfnt) at offset 0x84C0 18708 bytes