Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e248b10107cc925…

MALICIOUS

PDF

39.3 KB Created: 2021-05-15 07:07:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a250251122175998d03b08f41fd3bbdd SHA-1: 79848e90ae0afb0f4af7b6e4f707369ed89cb196 SHA-256: 6e248b10107cc9254210c9f609348957738ff7f10799ebb00679011d2be287d6
130 Risk Score

Malware Insights

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

The PDF document contains embedded links that point to a malicious redirector infrastructure, specifically advertising a "Coin Master PC Hack". The presence of a download button lure and the nature of the linked content strongly suggest a phishing or scam attempt designed to trick users into downloading potentially unwanted or malicious software. No scripts were extracted from this sample.

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-pc-hack-download-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00003461.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3461 25208 bytes
SHA-256: 52ca61f829bf69625ddbba9882227b271a8517dcc18381ffac9ea3fe28683280
font_01_sfnt_off00006da6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DA6 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00007758.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7758 18448 bytes
SHA-256: 8402008f23238815903f7ba327df2f1e722924fad7259551d96baa1836994324