Malicious PDF — malware analysis report

Static analysis result for SHA-256 50cbe405f125eca3…

MALICIOUS

PDF

38.5 KB Created: 2021-05-23 21:24:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 76ee5ef2c9048c26d8ed835f31fcd34b SHA-1: a058d741dde3a7c8003aa2e7f01a47e3d43725d6 SHA-256: 50cbe405f125eca36982a5cc21d9d2518476130d30275935d6f9f99d5bb17bd0
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a high-severity heuristic firing indicating it links to a game hack redirector, specifically mentioning 'minecraft-free-apk-game-hack'. The document body and embedded links reinforce this lure, directing users to potentially malicious websites. While no scripts were directly extracted, the PDF structure itself facilitates the redirection, likely leading to a further stage of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

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/479516143/minecraft-free-apk-game-hack PDF link annotation
    • https://goonscience.com/images/roblox-download-pc-free_GM431946152.pdfIn PDF document text
    • https://goonscience.com/images/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
    • https://goonscience.com/images/how-to-get-hacks-on-minecraft_GM479516143.pdfIn PDF document text
    • https://goonscience.com/images/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://goonscience.com/images/real-free-spins-for-coin-master_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000033f2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x33F2 24412 bytes
SHA-256: a67bdec12e061487e4410097eb3dc1b137e7819196a9a2034792bbdc3ef744cd
font_01_sfnt_off00006bf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BF4 2940 bytes
SHA-256: eb230542719c96b42e3fd8bb01e35f13ebd5f02629049da3a58e7fd7607bf48a
font_02_sfnt_off00007603.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7603 17912 bytes
SHA-256: 5206acb7ea69a133be6841e1064e2d72a54228dc4d5bb59bfc2f267825fea601

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