Malicious PDF — malware analysis report

Static analysis result for SHA-256 7adc7c9551960f6b…

MALICIOUS

PDF

36.4 KB Created: 2021-05-21 15:33:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: b023c69a700980f2b8f539a6ff054238 SHA-1: 138e3c29e4a725b8ade8051a475599fd10a59ff5 SHA-256: 7adc7c9551960f6b02ddb1154d918958a00ba04ec3bacccb6526d004805205ab
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple embedded links and a call-to-action phrase, 'CLICK HERE TO ACCESS MINECRAFT GENERATOR', designed to trick users into visiting malicious redirectors. The primary malicious URL, https://netcdn.xyz/app/479516143/how-to-get-a-cape-in-minecraft-for-free-game-hack, is flagged as a known malicious redirector. The document body and heuristics indicate a lure for free game hacks or generators, a common social engineering tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

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.xyz/app/479516143/how-to-get-a-cape-in-minecraft-for-free-game-hack In PDF document text
    • http://www.herbasacra.gr/images/all-minecraft-handbooks_GM479516143.pdfIn PDF document text
    • http://www.herbasacra.gr/images/coin-master-hack-mod-apk_GM406889139.pdfIn PDF document text
    • http://www.herbasacra.gr/images/coin-master-gold-cards-hack_GM406889139.pdfIn PDF document text
    • http://www.herbasacra.gr/images/get-free-robux-info_GM431946152.pdfIn PDF document text
    • http://www.herbasacra.gr/images/how-to-download-minecraft-for-free-on-windows_GM479516143.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_002_off000033a7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x33A7 25616 bytes
SHA-256: b04cc020d2c616ce4d7670a92b873310790d22e38da3e510ff9078a1503fe5a4
font_01_sfnt_off00006da8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DA8 18052 bytes
SHA-256: 651613c0b0933ea46dfe34ab8437030315119b6d54c219aba7cf9326f75e4fa1

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