Malicious PDF — malware analysis report

Static analysis result for SHA-256 5cd6c25fc6a41b27…

MALICIOUS

PDF

42.8 KB Created: 2021-05-12 08:07:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 25450a1ff8c7b838b489186f8ddf52ff SHA-1: 740e7beb5edbee09c636c49ef9cbedce208e99fc SHA-256: 5cd6c25fc6a41b27b857356cd7bf1f53da7d3d607739dc8fb2248f241194f75e
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that point to known malicious redirector infrastructure, specifically leading to a download for a 'minecraft-hacked-client'. The document body and heuristics indicate a lure to download a potentially malicious file. No scripts were extracted from this sample, but the presence of malicious links and the ML classifier's high confidence score support this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 3

  • 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-hacked-client-1.8-game-hack In PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/free-spins-coin-master-android_GM406889139.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/how-to-exploit-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/free-coin-master-hack-no-verification_GM406889139.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/minecraft-redeem-code-free_GM479516143.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/coin-master-hack-android-2021_GM406889139.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/roblox-www-com_GM431946152.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/how-to-make-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/free-robux-gen_GM431946152.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/blox-fun-info_GM431946152.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/tiradas-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/free-robux-without-offers_GM431946152.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/roblox-devil_GM431946152.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/pop-slots-free-vegas-casino-slots-machine-game-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-as-a-kid_GM431946152.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_003_off00004c22.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C22 25032 bytes
SHA-256: 79e55565933fa3313b1238e8f23ae5a0531a04c0d1be4da2c25974892b4a684b
font_01_sfnt_off000084ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84CA 18368 bytes
SHA-256: 420cbf164c74e6dc133d1414ba407e12ce0648dec1f88ec8b0651e26dc2e59ce

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