Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e0d3938af9d3bb0…

MALICIOUS

PDF

44.0 KB Created: 2021-06-09 08:37:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: a45851a194602cb76c312a377f410704 SHA-1: a03e8838ab3b726f5ccff763c815fafd5cca93f5 SHA-256: 2e0d3938af9d3bb09490c59e8d1a138e91e7855ff872827cecbdcaf8cec9e798
122 Risk Score

Malware Insights

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

This PDF document employs a lure of free game hacks and generators to trick users into clicking malicious links. The presence of a fake CAPTCHA or human verification prompt is a common social engineering tactic to encourage user interaction. The document contains numerous embedded URLs, with the primary one pointing to a redirector that likely leads to further malicious content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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/free-roblox-account-genirtor-game-hack PDF link annotation
    • https://lib.btkljogja.or.id/repository/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-robux-survey_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/minecraft-tiktok-hacks_GM479516143.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/get-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/get-robux-now_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-link-daily-get-free-spins-amp_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/minecraft-games-to-play-for-free_GM479516143.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-roblox-card-codes_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-robux-no-human-verification-or-survey-or-download_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-free-spins-2021-haktuts_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-followers-on-roblox-generator_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-robux-on-phone_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/minecraft-windows-10-free-trial_GM479516143.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/e-free-roblox_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/cheat-roblox-lumber-tycoon-2-btools_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/links-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/real-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-spins-coin-master-links-twitter_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-hacks-for-iphone_GM406889139.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_off0000505e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x505E 24656 bytes
SHA-256: 3aceb477449584a0e7479ab4da1e791454df66fa28e204f6ad13728e747516ac
font_01_sfnt_off0000893e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x893E 18312 bytes
SHA-256: 8408dcbf111d04789a64cf4a7c283c0fabf371dee9442f029acd80627819d9e5

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