Malicious PDF — malware analysis report

Static analysis result for SHA-256 56c0e21cdbb3362c…

MALICIOUS

PDF

37.1 KB Created: 2021-05-23 01:04:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 0d7efd9022a6025a5d8f862e30668381 SHA-1: 6d4db2f7b8430fbde5060f74e0734e11af7cf4bc SHA-256: 56c0e21cdbb3362ce7d27d4793f90ac8bfdf14115a6155bfeb055fca93251f8b
160 Risk Score

Malware Insights

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

The PDF contains multiple links to websites offering game hacks and free in-game currency, identified as a common lure for malicious redirects. The heuristic PDF_GAME_HACK_REDIRECT_LURE specifically flags this behavior. While no scripts were extracted, the embedded links and the nature of the lures suggest an attempt to direct the user to potentially malicious content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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-free-spins-2021-game-hack In PDF document text
    • https://elearning.man2pati.id/__statics/gudangsoal/files/how-to-get-a-cape-in-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://elearning.man2pati.id/__statics/gudangsoal/files/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.man2pati.id/__statics/gudangsoal/files/minecraft-bedrock-edition-download-pc-free_GM479516143.pdfIn PDF document text
    • https://elearning.man2pati.id/__statics/gudangsoal/files/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.man2pati.id/__statics/gudangsoal/files/minecraft-free-download-chromebook_GM479516143.pdfIn 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000035a6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x35A6 25644 bytes
SHA-256: 91ccdb22d94d03d450447ed3bdb237dff7522a766eb996fa3bf8c90c732254e8
font_01_sfnt_off00006f93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F93 18288 bytes
SHA-256: 9f7609fba99e53c6baa99bb04d1c7e3f9b7167131c1520eb2a413cdab4a14871

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