PDF static analysis report

Static analysis result for SHA-256 81640c4930891930…

SUSPICIOUS

PDF

44.6 KB Created: 2021-06-02 21:07:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: b4fe247894c4a2da808494bef1c6b178 SHA-1: 227cf9e8bc31d688c646d41e9bace5ed02620315 SHA-256: 81640c49308919304fba6b4d38016666dd3afb45a1917646caa53022e99ad277
42 Risk Score

Malware Insights

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

The document contains multiple embedded URLs and a heuristic firing for a visual download button, strongly suggesting a lure to download a payload. The ML classifier also flagged the PDF as malicious with high confidence. The document body and extracted URLs indicate a theme of offering free in-game items or cheats for popular games, a common social engineering tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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/431946152/how-to-get-free-cloth-roblox-2021-game-hack PDF link annotation
    • https://registracomodo.it/wp-content/uploads/fsqm-files/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • https://registracomodo.it/wp-content/uploads/fsqm-files/free-robux-2021_GM431946152.pdfIn PDF document text
    • https://registracomodo.it/wp-content/uploads/fsqm-files/roblox-cheat-engine-crashes_GM431946152.pdfIn PDF document text
    • https://registracomodo.it/wp-content/uploads/fsqm-files/get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://registracomodo.it/wp-content/uploads/fsqm-files/roblox-hack-xbox-one_GM431946152.pdfIn PDF document text
    • https://registracomodo.it/wp-content/uploads/fsqm-files/is-minecraft-free-on-xbox_GM479516143.pdfIn PDF document text
    • https://registracomodo.it/wp-content/uploads/fsqm-files/minecraft-free-no-download_GM479516143.pdfIn PDF document text
    • https://registracomodo.it/wp-content/uploads/fsqm-files/roblox-eclipsis-hack_GM431946152.pdfIn PDF document text
    • https://registracomodo.it/wp-content/uploads/fsqm-files/hack-para-roblox-para-matar_GM431946152.pdfIn PDF document text
    • https://registracomodo.it/wp-content/uploads/fsqm-files/minecraft-marketplace-free_GM479516143.pdfIn PDF document text
    • https://registracomodo.it/wp-content/uploads/fsqm-files/free-roblox-giftcard-games_GM431946152.pdfIn PDF document text
    • https://registracomodo.it/wp-content/uploads/fsqm-files/no-download-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://registracomodo.it/wp-content/uploads/fsqm-files/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • https://registracomodo.it/wp-content/uploads/fsqm-files/free-robux-without-verification_GM431946152.pdfIn PDF document text
    • https://registracomodo.it/wp-content/uploads/fsqm-files/how-to-get-1-robux-for-free_GM431946152.pdfIn PDF document text
    • https://registracomodo.it/wp-content/uploads/fsqm-files/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
    • https://registracomodo.it/wp-content/uploads/fsqm-files/how-to-get-minecraft-for-free-on-ps4_GM479516143.pdfIn PDF document text
    • https://registracomodo.it/wp-content/uploads/fsqm-files/generateur-de-robux-cheat-engine_GM431946152.pdfIn PDF document text
    • https://registracomodo.it/wp-content/uploads/fsqm-files/how-to-hack-a-group-on-roblox_GM431946152.pdfIn PDF document text
    • https://registracomodo.it/wp-content/uploads/fsqm-files/roblox-infinite-jump-hack-2021_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_004_off00005178.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5178 24716 bytes
SHA-256: 07d507362d6ffc649551ebc4cadc5b264784973407092511c708042d9b65ea90
font_01_sfnt_off000089fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89FB 18784 bytes
SHA-256: 06c39aa32b4c0d1ab9789ce3d7230384ce78e27b21253f8f60b37a5000e94f25