Malicious PDF — malware analysis report

Static analysis result for SHA-256 4602f95fe9cc820d…

MALICIOUS

PDF

41.5 KB Created: 2021-05-11 14:31:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: e3ed378618a8445b5a9f7664e8c46b83 SHA-1: acded6ad02e4e844bba2285aeddf94721e3cef4a SHA-256: 4602f95fe9cc820db0efede93443cf633c52817b541f1bbee9fa9be006a033e8
100 Risk Score

Malware Insights

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

The PDF contains embedded links and a visual download button, directing users to download potentially malicious applications. The primary link identified, 'https://netcdn.xyz/app/406889139/coin-master-hack-apk-3.5-13-game-hack', is flagged as belonging to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains references to 'Coin Master Hack Apk' and similar lures, reinforcing the phishing attempt.

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/406889139/coin-master-hack-apk-3.5-13-game-hack In PDF document text
    • http://www.siahotel.com/userfiles/files/free-robux-co_GM431946152.pdfIn PDF document text
    • http://www.siahotel.com/userfiles/files/free-robux-obby_GM431946152.pdfIn PDF document text
    • http://www.siahotel.com/userfiles/files/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://www.siahotel.com/userfiles/files/free-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.siahotel.com/userfiles/files/win-free-robux_GM431946152.pdfIn PDF document text
    • http://www.siahotel.com/userfiles/files/free-free-robux_GM431946152.pdfIn PDF document text
    • http://www.siahotel.com/userfiles/files/instant-robux_GM431946152.pdfIn PDF document text
    • http://www.siahotel.com/userfiles/files/coin-master-mod-apk-latest-hack-with-unlimited-free-spins_GM406889139.pdfIn PDF document text
    • http://www.siahotel.com/userfiles/files/real-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://www.siahotel.com/userfiles/files/coin-master-apk-mod-hack-download_GM406889139.pdfIn PDF document text
    • http://www.siahotel.com/userfiles/files/minecraft_GM479516143.pdfIn PDF document text
    • http://www.siahotel.com/userfiles/files/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.siahotel.com/userfiles/files/free-roebucks-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.siahotel.com/userfiles/files/coin-master-how-to-get-free-pet-food_GM406889139.pdfIn PDF document text
    • http://www.siahotel.com/userfiles/files/coin-master-official-fan-page_GM406889139.pdfIn PDF document text
    • http://www.siahotel.com/userfiles/files/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://www.siahotel.com/userfiles/files/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://www.siahotel.com/userfiles/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.siahotel.com/userfiles/files/how-to-get-free-robux-on-pc_GM431946152.pdfIn PDF document text
    • http://www.siahotel.com/userfiles/files/minecraft-noob-vs-pro-vs-hacker-vs-god_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_003_off00004842.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4842 24620 bytes
SHA-256: f5825bed8e7b681a83e2944a0a114ec5dc19d54b3685e8b876ac3affc462d1f9
font_01_sfnt_off00007f82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F82 18372 bytes
SHA-256: 17df93aaa0a20aa5c042e4bfc901dcd28212527af948c4b2f830898a8d4628be

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