Malicious PDF — malware analysis report

Static analysis result for SHA-256 0dfe82827ce62fe1…

MALICIOUS

PDF

45.0 KB Created: 2021-06-07 09:00:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7f9252e3f482289c1c2f441d9230a5b5 SHA-1: ddbecdd3f629e2da1f146e59d053dd23834345d0 SHA-256: 0dfe82827ce62fe1448d4965922119bd83e8295ef2dbead1d761b6574f1d74b7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and lures related to game hacks and free currency, indicating a phishing or scam attempt. The embedded URLs, such as 'https://netcdn.tw/app/431946152/insane-admin-hack-script-roblox-pastebin-game-hack', are designed to lead users to potentially harmful content or further malicious sites. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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/insane-admin-hack-script-roblox-pastebin-game-hack In PDF document text
    • http://gaec.cl/images/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
    • http://gaec.cl/images/make-your-own-minecraft-server-free_GM479516143.pdfIn PDF document text
    • http://gaec.cl/images/spin-coin_GM406889139.pdfIn PDF document text
    • http://gaec.cl/images/free-robux-com_GM431946152.pdfIn PDF document text
    • http://gaec.cl/images/how-to-get-robux_GM431946152.pdfIn PDF document text
    • http://gaec.cl/images/free-spins-coin-master-generator_GM406889139.pdfIn PDF document text
    • http://gaec.cl/images/free-robux-exe_GM431946152.pdfIn PDF document text
    • http://gaec.cl/images/how-to-get-minecraft-for-free-on-ps4-2021_GM479516143.pdfIn PDF document text
    • http://gaec.cl/images/coin-master-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • http://gaec.cl/images/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • http://gaec.cl/images/get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://gaec.cl/images/wurst-minecraft_GM479516143.pdfIn PDF document text
    • http://gaec.cl/images/give-free-robux_GM431946152.pdfIn PDF document text
    • http://gaec.cl/images/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
    • http://gaec.cl/images/roblox-hack-ios_GM431946152.pdfIn PDF document text
    • http://gaec.cl/images/roblox-hackers-list_GM431946152.pdfIn PDF document text
    • http://gaec.cl/images/coin-master-free-spins-and-free-coins_GM406889139.pdfIn PDF document text
    • http://gaec.cl/images/minecraft-hacks-for-2b2t_GM479516143.pdfIn PDF document text
    • http://gaec.cl/images/how-to-get-100-robux-for-free_GM431946152.pdfIn PDF document text
    • http://gaec.cl/images/hacks-to-get-free-robux_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
stream_004_off00004efe.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4EFE 26784 bytes
SHA-256: 020e3ea1ca1f1f6f0fbdef8d7329f5a5293608b37d53d3b31fc091a367370cae
font_01_sfnt_off00008a9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A9E 19172 bytes
SHA-256: 3f884ea0587d9de2932fe5f34741a71aeb94993aa909066c6207a4fc6ccc4fd1