Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9e2fc94e236fbdc…

MALICIOUS

PDF

46.1 KB Created: 2021-06-11 09:03:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 05cbd6e6729b5bb7f0140e4e94c5c320 SHA-1: dd0c5c80537597248b01c047574e36f70fd8f02a SHA-256: c9e2fc94e236fbdc57efe59e5107fbb72c5d367114fb0fea7dd085ee40333d4c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and lures users with promises of game hacks and free spins, indicating a phishing or scam attempt. The primary malicious URL identified is https://netcdn.tw/app/431946152/kat-hack-roblox-game-hack, which likely serves as a gateway to further malicious content. The presence of embedded URLs and the ML classifier's high confidence score support this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/kat-hack-roblox-game-hack In PDF document text
    • http://sudamericarural.org/images/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • http://sudamericarural.org/images/coin-master-free-spin-now_GM406889139.pdfIn PDF document text
    • http://sudamericarural.org/images/get-2021-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://sudamericarural.org/images/roblox-hack-menu-download-2021_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/free-spins-coin-master-no-survey_GM406889139.pdfIn PDF document text
    • http://sudamericarural.org/images/minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • http://sudamericarural.org/images/roblox-rocitizens-free-money-codes_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/robux-converter_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/free-minecraft-mods-for-ps4_GM479516143.pdfIn PDF document text
    • http://sudamericarural.org/images/roblox-hack-account-2021_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/how-to-get-free-robux-on-computer_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/free-robux-today_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://sudamericarural.org/images/get-free-followers-on-roblox_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://sudamericarural.org/images/free-tiktok-comments_GM835599320.pdfIn PDF document text
    • http://sudamericarural.org/images/coin-master-hack-app-download-free_GM406889139.pdfIn PDF document text
    • http://sudamericarural.org/images/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/free-robux-codes_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/coin-master-free-spins-hack-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_off000050d2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50D2 29272 bytes
SHA-256: 007f08f20febc29f7c05004161c6d6fe0a0b35b1241f663fb2c77e86dc86051f
font_01_sfnt_off0000916f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x916F 18284 bytes
SHA-256: 39311f232ef387255278ece71a6069f8ac6654d3f14949c7e3c5f1bd3f2722e2

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