Malicious PDF — malware analysis report

Static analysis result for SHA-256 964a45d54e930095…

MALICIOUS

PDF

37.7 KB Created: 2021-05-16 23:02:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e3bfc5076168b45e492c53d689fb40c4 SHA-1: 50518ba6a1734aae67367f93c5e41b64369356ec SHA-256: 964a45d54e930095e2282b347d96318dca02707a5149c6b831776735ad87173a
170 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a fake CAPTCHA heuristic, indicating a deceptive user interface designed to trick the user. It also includes a link to a suspicious URL, 'https://netcdn.xyz/app/406889139/coin-master-gold-cards-hack-game-hack', which likely serves as the landing page for the lure. The document's content and heuristics suggest an attempt to trick the user into visiting a malicious site, possibly for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier clean score 0.0126

Heuristics 5

  • 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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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-gold-cards-hack-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_off00003219.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3219 24148 bytes
SHA-256: b8dda660566bc5e8e6467ae5dc779bcc11d95b4496cb3019993cbf729770c240
font_01_sfnt_off00006912.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6912 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off000072c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72C3 17964 bytes
SHA-256: adb4edbf0c57abdeeb225f0bd422abdfe2e9b1ff4eb8b752c2c204cd3e2141b0

Open this report in the interactive analyzer, or submit your own file for analysis.