Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7a58d3fc2ad7642…

MALICIOUS

PDF

36.0 KB Created: 2021-05-21 05:55:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: e5f3654ffc784bcef0b88e0bc5244338 SHA-1: 4e0eb2d5705a0bcebf02fe70b2ef1a4ea90a9a6d SHA-256: c7a58d3fc2ad7642f1b9e18436730a6817202796b3372d490220b73452b27188
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures related to game hacks and free currency, directing users to external URLs. The presence of embedded URLs and the 'GAME_HACK_REDIRECT_LURE' heuristic strongly suggest a phishing or scam attempt. While no scripts were explicitly extracted, the nature of the lures and embedded URLs indicates an attempt to redirect users to potentially malicious sites, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

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-account-roblox-with-robux-game-hack PDF link annotation
    • http://e-onlinearchiv.de/images/free-spins-coin-master-2021-no-verification_GM406889139.pdfIn PDF document text
    • http://e-onlinearchiv.de/images/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • http://e-onlinearchiv.de/images/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://e-onlinearchiv.de/images/pubg-uc-earning-app-2021_GM1330123889.pdfIn PDF document text
    • http://e-onlinearchiv.de/images/free-robux-generator-without-human-verification_GM431946152.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_off00003212.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3212 24544 bytes
SHA-256: afad509c2c58758ca34d328ae4cd688d7908b6c5d0c0edd01ef8540bf4f8e209
font_01_sfnt_off00006a6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A6F 18676 bytes
SHA-256: 668999cf9284642de193c24d0ad86807d097fd3a0f3919542938043f8a05e142

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