Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2cccb2378014907…

MALICIOUS

PDF

46.3 KB Created: 2021-06-13 20:57:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 6d268e52a4df57f678dc0de710ffd763 SHA-1: 776ab64fc6ee168332080bb291d657e91f83d1da SHA-256: c2cccb2378014907543fbae31907ad3cdf25dacefc2a5f55823cdd6e80815cd5
82 Risk Score

Malware Insights

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

The document presents a fake CAPTCHA or human verification prompt, a common lure for phishing or scam operations. It contains an embedded URL, 'http://netcdn.co/app/431946152/how-to-get-free-robux-on-roblox-phone-game-hack', which is likely the primary payload delivery mechanism. The document body text and embedded URLs suggest a theme of obtaining free Robux or game hacks, indicating a social engineering tactic to trick users into clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8696

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 http://netcdn.co/app/431946152/how-to-get-free-robux-on-roblox-phone-game-hack PDF link annotation
    • https://inspiration-modellbau.de/images/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/real-free-robux-games_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/como-tener-tener-hacks-en-roblox_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/free-robux-no-inspect-or-waiting_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/how-to-make-a-minecraft-java-server-for-free_GM479516143.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/today-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/roblox-cheat_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/coin-master-coin-hack_GM406889139.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/how-to-gain-more-spins-on-coin-master-for-free_GM406889139.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/robux-page_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/coin-master-free-spins-cheats_GM406889139.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/free-robux-advertisement-bot_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/free-coin-master-cheats_GM406889139.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/shirt-roblox-2021-free-dowload-transparent_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/free-robux-youtube_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/roblox-jaubreak-hack-script-auto-rob_GM431946152.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_003_off0000498e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x498E 25584 bytes
SHA-256: 8a0a25af63a3e4f02a813fda0c4b6e6b91e39599ba405808339581fe410d2a2f
font_01_sfnt_off00008482.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8482 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off00009193.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9193 18676 bytes
SHA-256: a4bf64fc00ba71c6aacd2dee0c35c6bf26a0140ff3b08e92e0043502b03f7662

Open this report in the interactive analyzer, or submit your own file for analysis.