Malicious PDF — malware analysis report

Static analysis result for SHA-256 aac2dc7ec8f394a5…

MALICIOUS

PDF

35.9 KB Created: 2021-05-10 12:16:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 76262fc6225f6e89da0b06d286df81e4 SHA-1: bdb680fac2cc737979fb4770cb8be8216e4f2f4d SHA-256: aac2dc7ec8f394a51d5ac03de2b2d7c7f6454d52b036c046e5ea2d21c6eb0419
170 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a malicious redirector link, specifically disguised as a 'free generator / game hack' lure for Minecraft. The document body and embedded links reinforce this lure, directing users to potentially harmful infrastructure. The presence of a 'password-protected archive handoff' heuristic suggests an attempt to bypass security controls by encrypting a payload.

Machine Learning

  • Nyx PDF Classifier clean score 0.0265

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-free-ios-no-verification-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_off00003403.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3403 24620 bytes
SHA-256: b1898e99c73f7907da4a83c8d4afe2ba80af3110df101ef20f8ebdbbdf42f876
font_01_sfnt_off00006c49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C49 17844 bytes
SHA-256: 314c8825a4d06e03bd849bd4cad10bf883abec19d637afa4c41587c94f1a0a3d

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