Malicious PDF — malware analysis report

Static analysis result for SHA-256 179998d67c03011d…

MALICIOUS

PDF

39.4 KB Created: 2021-05-19 04:38:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 42a4e825e9913c3ca297efafae994223 SHA-1: a0442f37dd3514826a10dc8cb7d19764ead1b542 SHA-256: 179998d67c03011d7a0c3999b8ee95f35d3f4c1eff976fd27ff7d61fad450c0b
130 Risk Score

Malware Insights

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

The PDF contains multiple links to a known malicious redirector infrastructure, disguised as a 'Coin Master Hack Trick 2021' generator. The document body explicitly contains the phrase 'CLICK HERE TO ACCESS COIN MASTER GENERATOR', reinforcing the lure. The presence of embedded URLs and the nature of the lure suggest an attempt to trick the user into visiting a malicious site, likely for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier clean score 0.0127

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-hack-trick-2021-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
font_00_sfnt_off0000332d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x332D 28908 bytes
SHA-256: 8d20ee619179fc7a3497e63b386bb9aa11251e54bc4b434b7065448358505b1f
font_01_sfnt_off00006f29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F29 2824 bytes
SHA-256: 381f6d859be141449dd645f7be1484d2a1cf49218dc471b402dae69eaa2b11d5
font_02_sfnt_off000078cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78CC 18116 bytes
SHA-256: c4260f5e787f6e7dffce264d62518f3a61bcf9e6f1fccfaba9053fe678d6f70c

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