Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8c9645325bbb1ea…

MALICIOUS

PDF

39.1 KB Created: 2021-05-21 08:49:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2dbb921ae8b076bedad96a8470d00792 SHA-1: 60b5e2dc6c464520d012a7258a4608c414178378 SHA-256: c8c9645325bbb1ea2d0a44259ab761c70233d7657d8fe109737f0f72a49f890d
160 Risk Score

Malware Insights

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

The PDF contains multiple links to known malicious redirectors, disguised as a game hack download. The document body explicitly prompts the user to 'CLICK HERE TO ACCESS MINECRAFT GENERATOR', further reinforcing the lure. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9476

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/479516143/minecraft-dungeons-free-download-game-hack In PDF document text
    • http://zarinnameh.ir/images/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://zarinnameh.ir/images/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
    • http://zarinnameh.ir/images/public-enemy-sun-prairie-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://zarinnameh.ir/images/is-roblox-free-on-pc_GM431946152.pdfIn PDF document text
    • http://zarinnameh.ir/images/open-coin-master_GM406889139.pdfIn 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_002_off000034b7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x34B7 28664 bytes
SHA-256: 3c64c0e9097d67fc0a4d0019f833da5468a02e3c31aaf06fb1f09b14a9b0d2d4
font_01_sfnt_off0000765b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x765B 18720 bytes
SHA-256: 9131f8ae0af3742f2152d673706180936bbe7c3ea282a1fb4d0c655f83237649

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