Malicious PDF — malware analysis report

Static analysis result for SHA-256 4755706178d82540…

MALICIOUS

PDF

39.8 KB Created: 2021-05-15 07:38:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 6a3f2a737583090f5e46ad04ca690973 SHA-1: aac0f94e1fbba43b2c122fd9ff0a8734ec7bb43b SHA-256: 4755706178d82540c8216702ff90f1c03a4815df4ae9c20ba13ff341cdb90dd8
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 0.9926

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/free-robux-redeem-codes-game-hack PDF link annotation
    • http://felmerihomes.com.au/images/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
    • http://felmerihomes.com.au/images/minecraft-116-1-download_GM479516143.pdfIn PDF document text
    • http://felmerihomes.com.au/images/free-robux-cards_GM431946152.pdfIn PDF document text
    • http://felmerihomes.com.au/images/spin-and-coin_GM406889139.pdfIn PDF document text
    • http://felmerihomes.com.au/images/haktuts-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://felmerihomes.com.au/images/free-coin-master-glitches_GM406889139.pdfIn PDF document text
    • http://felmerihomes.com.au/images/how-do-you-get-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://felmerihomes.com.au/images/coin-master-event-hack_GM406889139.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_003_off000039b2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x39B2 27348 bytes
SHA-256: b5c0d83c195fb534c1a6637c1259b46f27361928d0cd4d328781ca38faab4a84
font_01_sfnt_off00007948.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7948 18448 bytes
SHA-256: ac1fbd71dc65d7a5013a2beb110170fe519d7ae17df877d161357825f85fd2ae

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