Malicious PDF — malware analysis report

Static analysis result for SHA-256 75d5844134cfaddc…

MALICIOUS

PDF

42.7 KB Created: 2021-05-12 16:34:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: dc7ccd21e42e47fac098d697465a7b64 SHA-1: 5d6eeac4209f5ce50cfc358838d14da8932ecd92 SHA-256: 75d5844134cfaddc4694a6e03bf06cf728d1468da6c0f3c3943fc33e49fedf4a
170 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a game hack lure, directing users to a known malicious redirector. The document body also contains a call-to-action phrase and the embedded URL, reinforcing the phishing attempt. The presence of a password-protected archive lure suggests an attempt to bypass security controls by encrypting a payload.

Machine Learning

  • Nyx PDF Classifier clean score 0.0125

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/479516143/minecraft-java-account-free-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_off000033bf.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x33BF 34104 bytes
SHA-256: bae6020808fae6995d07272b47f58337f07e62668a0890bdcc151af4bbac5f9c
font_01_sfnt_off00007c47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C47 2892 bytes
SHA-256: c2578a292634a901613c1dd9f9883dd4930e6811e59ae03d696f263e56ea17b4
font_02_sfnt_off00008631.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8631 18128 bytes
SHA-256: 91c13f1291a2ca04d91179ef061400a9e1d7bdcd902d3a6c12d687c4cb44bfbf

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