Malicious PDF — malware analysis report

Static analysis result for SHA-256 01a06a66a556f81f…

MALICIOUS

PDF

33.0 KB Created: 2021-07-19 21:22:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 3ae8569674c8e631727c475b5006a07e SHA-1: 153165c2eb4df6ad70c29a2ba24e1d789ec9230f SHA-256: 01a06a66a556f81ff6e8b73a3d9229f332bdcf6c48a7f94e96e9b947c2558acb
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

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/479516143/minecraft-launcher-free-game-hack PDF link annotation
    • http://rainbowbuddha.academy/images/free-minecraft-accounts-reddit_GM479516143.pdfIn PDF document text
    • http://rainbowbuddha.academy/images/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://rainbowbuddha.academy/images/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://rainbowbuddha.academy/images/free-minecraft-server_GM479516143.pdfIn PDF document text
    • http://rainbowbuddha.academy/images/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://rainbowbuddha.academy/images/free-robux-generator-for-kids_GM431946152.pdfIn PDF document text
    • http://rainbowbuddha.academy/images/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://rainbowbuddha.academy/images/tiktok-fans-free_GM835599320.pdfIn PDF document text
    • http://rainbowbuddha.academy/images/how-to-download-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • http://rainbowbuddha.academy/images/minecraft-free-ios_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00002ef9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2EF9 22352 bytes
SHA-256: 3283f1eb48f025ea3692dc6d2b96d443918303b748941f816deebe56cc3f59b1
font_01_sfnt_off00006055.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6055 17872 bytes
SHA-256: d837b145e961d25029e35f3a46fce907c35d402980f977a4958a38d6468d5501

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