Malicious PDF — malware analysis report

Static analysis result for SHA-256 564384c5bdfaf742…

MALICIOUS

PDF

38.1 KB Created: 2021-05-24 03:58:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 4e973f9187546932842428b51ac1aab3 SHA-1: 304344af3b851cc8f4d775ae6b27235a6df40fce SHA-256: 564384c5bdfaf74216beb0624d8c52af80eaa1f848971178de2c085f1f6969b8
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a "free generator / game hack" related to TikTok followers, directing users to a suspicious URL. The presence of multiple similar URLs and a high ML classifier score indicate a malicious intent to redirect users to potentially harmful content. No scripts were extracted, but the document's structure and embedded links suggest a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7010

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/835599320/how-to-get-free-tiktok-followers-game-hack PDF link annotation
    • http://meisterhaus-guterl.de/images/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/free-gold-cards-coin-master_GM406889139.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/free-coins-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/free-robux-com-no-verification_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/free-role-in-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003005.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3005 26268 bytes
SHA-256: 43b4a9b78e825b45f262ac416a42e176bfcb3f81c320bd199f5776afc8a516a7
font_01_sfnt_off00006b47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B47 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off00007532.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7532 17692 bytes
SHA-256: efb7503bfa77ecc57b32614c06d9641da1723dd074a5c375bb93bdb3ea7f449b

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