Malicious PDF — malware analysis report

Static analysis result for SHA-256 43035dce565be592…

MALICIOUS

PDF

35.5 KB Created: 2021-05-13 20:02:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5184ce922e786a2c4b4df4dbfa14f3d7 SHA-1: 30de513a4ba2580916e5a72b344ebb72e99d3037 SHA-256: 43035dce565be592b157691ace4d1d015160d0800ea574dcab0b269f1aa7f7b1
130 Risk Score

Malware Insights

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

The PDF document contains embedded links that redirect to a website offering "Coin Master Free Spins Cheats", a common lure for malicious content. The heuristic firings indicate the PDF links to known malicious redirector infrastructure. While no scripts were explicitly extracted, the nature of the lure suggests an attempt to trick the user into downloading or executing a secondary payload, likely via exploitation.

Machine Learning

  • Nyx PDF Classifier clean score 0.0306

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-free-spins-cheats-game-hack In 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_003_off00003215.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3215 24884 bytes
SHA-256: 7e1a0cea2fb265e09598ae43f88b53d2f7987606ce04266e43e94a0a147047ae
font_01_sfnt_off00006a1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A1F 18052 bytes
SHA-256: 9bd717b0e04310867829ca511b483eebbd60050a5b8b31305794fbcb17f8519e

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