PDF static analysis report

Static analysis result for SHA-256 a551c349a29db73b…

SUSPICIOUS

PDF

40.9 KB Created: 2021-05-16 19:31:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 41e267d563ec33f7f82516c86265ddb6 SHA-1: 6d3e5e84d1ffdeb1668a52af29b8babbde1f2eb7 SHA-256: a551c349a29db73b21870a639892002cce7339fd33e416d94fe29e5416f368a9
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded URLs and a primary external URI pointing to sites offering game hacks and cheats, indicating a lure for potentially malicious downloads. The ML classifier strongly flagged this PDF as malicious. While no scripts were directly extracted, the presence of embedded URLs and the nature of the lures suggest an attempt to trick users into downloading second-stage malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 3

  • 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/479516143/minecraft-java-account-free-game-hack PDF link annotation
    • http://prazdnik-kzn.ru/images/free-robux-no-password_GM431946152.pdfIn PDF document text
    • http://prazdnik-kzn.ru/images/coin-master-free-spin-sites_GM406889139.pdfIn PDF document text
    • http://prazdnik-kzn.ru/images/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://prazdnik-kzn.ru/images/free-spin-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://prazdnik-kzn.ru/images/robux-converter_GM431946152.pdfIn PDF document text
    • http://prazdnik-kzn.ru/images/free-robux-working_GM431946152.pdfIn PDF document text
    • http://prazdnik-kzn.ru/images/free-minecraft-client_GM479516143.pdfIn PDF document text
    • http://prazdnik-kzn.ru/images/hack-coin-master-free_GM406889139.pdfIn PDF document text
    • http://prazdnik-kzn.ru/images/roblox-royale-high-diamond-hack_GM431946152.pdfIn PDF document text
    • http://prazdnik-kzn.ru/images/free-robux-rewards_GM431946152.pdfIn PDF document text
    • http://prazdnik-kzn.ru/images/coin-master-hack-without-verification-for-iphone_GM406889139.pdfIn PDF document text
    • http://prazdnik-kzn.ru/images/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • http://prazdnik-kzn.ru/images/wurst-115_GM479516143.pdfIn PDF document text
    • http://prazdnik-kzn.ru/images/how-do-you-get-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://prazdnik-kzn.ru/images/is-minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • http://prazdnik-kzn.ru/images/coin-master-hack-mod-apk-35-8_GM406889139.pdfIn PDF document text
    • http://prazdnik-kzn.ru/images/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
    • http://prazdnik-kzn.ru/images/free-robux-without-survey_GM431946152.pdfIn PDF document text
    • http://prazdnik-kzn.ru/images/hack-coin-master-without-root_GM406889139.pdfIn PDF document text
    • http://prazdnik-kzn.ru/images/robuxy-com-free-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_off00004678.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4678 24440 bytes
SHA-256: 256d4dca79fd9c5888dfa15aae3c0fe2c3c47a736120da2826ea42577fb72524
font_01_sfnt_off00007dce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DCE 18128 bytes
SHA-256: 91c13f1291a2ca04d91179ef061400a9e1d7bdcd902d3a6c12d687c4cb44bfbf