Malicious PDF — malware analysis report

Static analysis result for SHA-256 498a199cbb594e48…

MALICIOUS

PDF

42.5 KB Created: 2021-05-02 22:05:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 4fb9828a6b9234d17748fdc1f488f9cd SHA-1: 2388a35127b4370b6838c32b6b43128666d6fbf7 SHA-256: 498a199cbb594e48c2210450f201ef9d72e61bd9760667ee17aa82d4a9a20d93
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to 'free Robux' and links to external URLs that are likely part of a scam or malware distribution. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates a malicious intent to redirect users to potentially harmful content. While no scripts were directly extracted, the PDF structure itself facilitates the redirection, aligning with common social engineering tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

Heuristics 4

  • 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.
  • 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-robux-no-download-no-survey-2021-game-hack PDF link annotation
    • http://perpustakaan.ftk.uinib.ac.id//repository/roblox-jailbreak-speed-hack-2021.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/roblox-hack-dragon-ball-rage-stats.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id//repository/boku-no-roblox-accounts-free.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id//repository/cch-ly-robux-free-ko-hack-2021.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/roblox-hack-account-2021.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id//repository/free-working-no-human-verification-roblox-card.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id//repository/roblox-how-to-get-free-robux-youtube-2021.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/free-inferno-box-in-miners-heaven-roblox.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id//repository/how-to-get-free-robux-hack-free.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id//repository/make-robux-free-robux.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_off000042ad.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x42AD 26324 bytes
SHA-256: f23ba4ca332c6dc28f7650d5d03a42b17bb45567ecb7e519d1d0d5936d7b77d5
font_01_sfnt_off0000803a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x803A 19624 bytes
SHA-256: 1c4c5bb07eec40797f67499b04b39964e7fe74b1f410ac072a41a70f8b012069

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