Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d617922e382ef12…

MALICIOUS

PDF

35.9 KB Created: 2021-07-20 13:41:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 95eab94e2f5d72a316a6ca04f509bb52 SHA-1: 5b4ab7c0ffc98d87428cd66d1ac5ad10e98143ee SHA-256: 9d617922e382ef129f88dc3bdc81773ec0df3c3a8ec2bffe4dcdcb6859e4908d
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

The document contains multiple embedded URLs and a prominent call-to-action for downloading an application related to 'Coin Master' or game hacks. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs and download lures indicates a phishing or social engineering attempt to trick users into downloading malware. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://netcdn.tw/app/406889139/free-coin-master-spins-game-hack PDF link annotation
    • https://www.campguru.co.za/images/minecraft-bedrock-edition-download-pc-free_GM479516143.pdfIn PDF document text
    • https://www.campguru.co.za/images/free-coin-master-links_GM406889139.pdfIn PDF document text
    • https://www.campguru.co.za/images/free-minecraft-pe-server_GM479516143.pdfIn PDF document text
    • https://www.campguru.co.za/images/free-robux-no-human-verification-or-survey-or-download_GM431946152.pdfIn PDF document text
    • https://www.campguru.co.za/images/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • https://www.campguru.co.za/images/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.campguru.co.za/images/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.campguru.co.za/images/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • https://www.campguru.co.za/images/free-robux-script_GM431946152.pdfIn PDF document text
    • https://www.campguru.co.za/images/how-to-hack-roblox-accounts-on-phone_GM431946152.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_off00003559.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3559 23996 bytes
SHA-256: c927ebe250c9a1fe83f15ca6f25cdd6ca216f964c9de83173d21bbb0bd32d8e8
font_01_sfnt_off00006c05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C05 17884 bytes
SHA-256: dbba0adc3b1b7bb8b2e5e51fec5d28ab169e2f7a165ed2a14d616932af559aea

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