Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c87202c0f2dd25e…

MALICIOUS

PDF

44.8 KB Created: 2021-06-07 16:24:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: e15ee377ba60d3ec7a921e45d3322050 SHA-1: 29d3229054295717617008bd5eb9e5c151d04148 SHA-256: 1c87202c0f2dd25ee7735bea92679af67dc4b2b5a282e33f60e8a3f341a355a4
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs pointing to sites offering game exploits and cheats, suggesting a lure for potentially malicious downloads. The ML classifier also flagged this PDF as malicious. While no scripts were directly extracted, the presence of embedded URLs and the document's theme strongly indicate a phishing or social engineering attempt to trick users into downloading harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.tw/app/431946152/whats-the-best-free-roblox-exploit-game-hack PDF link annotation
    • https://shimony.net/images/minecraft-com-free_GM479516143.pdfIn PDF document text
    • https://shimony.net/images/how-to-put-in-cheat-codes-on-roblox-hospital-tycoon_GM431946152.pdfIn PDF document text
    • https://shimony.net/images/minecraft-net-download-free_GM479516143.pdfIn PDF document text
    • https://shimony.net/images/pubg-uc-dealer_GM1330123889.pdfIn PDF document text
    • https://shimony.net/images/www-roblox-robux_GM431946152.pdfIn PDF document text
    • https://shimony.net/images/earn-robux-today_GM431946152.pdfIn PDF document text
    • https://shimony.net/images/get-more-robux_GM431946152.pdfIn PDF document text
    • https://shimony.net/images/coin-master-free-spins-cheat-deutsch_GM406889139.pdfIn PDF document text
    • https://shimony.net/images/free-robux-co_GM431946152.pdfIn PDF document text
    • https://shimony.net/images/roblox-hacked-com-2021_GM431946152.pdfIn PDF document text
    • https://shimony.net/images/how-to-hack-a-minecraft-server_GM479516143.pdfIn PDF document text
    • https://shimony.net/images/free-robux-codes-generator_GM431946152.pdfIn PDF document text
    • https://shimony.net/images/free-minecraft-skin-maker_GM479516143.pdfIn PDF document text
    • https://shimony.net/images/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • https://shimony.net/images/how-to-hack-coin-master-using-es-file_GM406889139.pdfIn PDF document text
    • https://shimony.net/images/how-to-hack-roblox-accounts-on-phone-2021_GM431946152.pdfIn PDF document text
    • https://shimony.net/images/wahoogaming-co-free-robux_GM431946152.pdfIn PDF document text
    • https://shimony.net/images/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://shimony.net/images/how-to-get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://shimony.net/images/coin-master-rewards-free-spins_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_004_off000050fa.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50FA 24836 bytes
SHA-256: 848d1d16833bf885bc33637bf42134fe02cd406537fe5c78d4ddae460a76e3bb
font_01_sfnt_off00008a78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A78 18940 bytes
SHA-256: 359565678e67e2a7559246ba31d56754884a60de4214a507226744b7957e51f4

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