Malicious PDF — malware analysis report

Static analysis result for SHA-256 6eadcb7086640e75…

MALICIOUS

PDF

46.9 KB Created: 2021-06-11 11:58:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 5580fd8f97621f9dd8614af31b0f79f1 SHA-1: b2304bde6f2110427b8dee0bd1fd6020011e1ec9 SHA-256: 6eadcb7086640e751b1883f8eb3f1401dfb2ee169d328d2a3e942c3278d1396c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The document presents a fake CAPTCHA or verification prompt to trick the user into interacting with it, likely to initiate a download. An external URI pointing to a 'how-to-hack' page was found, suggesting a lure for potentially malicious content. No scripts were extracted, but the PDF structure and heuristics indicate a malicious intent to redirect the user to a harmful URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

Heuristics 4

  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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.tw/app/431946152/how-do-you-hack-roblox-game-hack PDF link annotation
    • http://www.dciprotection.ca/images/how-to-earn-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.dciprotection.ca/images/minecraft-login-free_GM479516143.pdfIn PDF document text
    • http://www.dciprotection.ca/images/can-i-play-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://www.dciprotection.ca/images/minecraft-for-macbook-free_GM479516143.pdfIn PDF document text
    • http://www.dciprotection.ca/images/roblox-free-hats-glitch_GM431946152.pdfIn PDF document text
    • http://www.dciprotection.ca/images/robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://www.dciprotection.ca/images/minecraft-hacks-115-2_GM479516143.pdfIn PDF document text
    • http://www.dciprotection.ca/images/free-spin-links-coin-master-october-30-2021_GM406889139.pdfIn PDF document text
    • http://www.dciprotection.ca/images/free-followers-on-tiktok_GM835599320.pdfIn PDF document text
    • http://www.dciprotection.ca/images/free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • http://www.dciprotection.ca/images/hack-mod-coin-master_GM406889139.pdfIn PDF document text
    • http://www.dciprotection.ca/images/funbloxxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://www.dciprotection.ca/images/minecraft-free-download-android-apk_GM479516143.pdfIn PDF document text
    • http://www.dciprotection.ca/images/free-robux-on-pc-october-24th-2021_GM431946152.pdfIn PDF document text
    • http://www.dciprotection.ca/images/how-to-hack-a-minecraft-account_GM479516143.pdfIn PDF document text
    • http://www.dciprotection.ca/images/free-tiktok-followers-no-survey_GM835599320.pdfIn PDF document text
    • http://www.dciprotection.ca/images/can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://www.dciprotection.ca/images/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.dciprotection.ca/images/how-to-get-verified-on-tiktok-for-free-2021_GM835599320.pdfIn PDF document text
    • http://www.dciprotection.ca/images/coin-master-game-download-free_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005013.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5013 24816 bytes
SHA-256: fdc4c270244b4cd734ea8bf8ea13f00bebcdbad1966690acaa921783fdbffdfa
font_01_sfnt_off0000892b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x892B 2824 bytes
SHA-256: 94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4
font_02_sfnt_off000092da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92DA 18816 bytes
SHA-256: d27b94fe1a8c05d6feb56d9a091a96145976f0feb7173cb46f16c8470fe3a7d8