Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4deef09545ab923…

MALICIOUS

PDF

38.9 KB Created: 2021-05-10 10:17:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 4e8beb7e749495ed6273de812a7644af SHA-1: 38dcac88a68d981682190ee150f355cfdfb7850f SHA-256: e4deef09545ab92353c0a899e9038f5767489b843bfb5a06a0b0211124f26844
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded text and links related to a "Coin Master Mod Game Hack" and a "CLICK HERE TO ACCESS COIN MASTER GENERATOR" call to action. Heuristics indicate the PDF links to known malicious redirector infrastructure, specifically the URL https://netcdn.xyz/app/406889139/coin-master-mod-game-hack. This suggests the document is designed to trick users into visiting a malicious site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier clean score 0.0128

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/406889139/coin-master-mod-game-hack In 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_003_off000035ad.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x35AD 25624 bytes
SHA-256: 4183b5ff92a777a2258ce2265ceb61e48e459e3b35b3d0903dfa88074cb33c65
font_01_sfnt_off00006e34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E34 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off000077e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77E6 17720 bytes
SHA-256: e3dc30cd69473f08b9483bb660e9aeaccc8f6f74c3e4f353697525059d592d8d

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