Malicious PDF — malware analysis report

Static analysis result for SHA-256 8180825ce0270358…

MALICIOUS

PDF

35.0 KB Created: 2021-07-05 16:40:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: b46a24c971025c09d672f11027ceb38b SHA-1: b06f743b39266d496edcc0ccf23d56889de33d0f SHA-256: 8180825ce0270358618f49c2ad5362566d23f36be2a1dce459ec7c433ade064d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document uses a game hack lure to entice users to click on embedded links. The primary link, http://netcdn.tw/app/431946152/how-do-i-hack-a-roblox-account-game-hack, is associated with a high-confidence heuristic for game hack redirects. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a phishing or malware distribution attempt, likely leading to a malicious download or exploit.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/431946152/how-do-i-hack-a-roblox-account-game-hack PDF link annotation
    • http://perpustakaan-stikesmsb.com/repository/coin-master-free-spin-and-coin-link-today_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/robux-win_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/how-to-get-any-clothes-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/free-robux-obbey-easy_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/money-hack-western-frontier-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/fhow-to-ge-free-robux-no-scamcom_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/earn-free-robux-legit_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/hack-mod-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/coin-master-hack-no-root_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/get-free-robux-on-robloxcom_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/how-to-get-1-million-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/jojo-s-tops-free-roblox-games_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/krnl-download_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/how-to-make-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/minecraft-free-exe_GM479516143.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/coin-master-free-spins-iphone-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/monster-battle-hack-roblox_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
font_00_sfnt_off00003118.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3118 22456 bytes
SHA-256: c8a8a51bea1698d5d4a402e8fe8af1606ff0e174a23791ebae40fe2bd497ac68
font_01_sfnt_off00006321.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6321 19232 bytes
SHA-256: 557b9da23e1a8ea0ed3b11672993e3946864ab778e154f26dd17faac8a5d9827

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