Malicious PDF — malware analysis report

Static analysis result for SHA-256 82cba2ef7834ca25…

MALICIOUS

PDF

34.7 KB Created: 2021-06-27 07:03:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 9894490839dbb2208a2adf1d06a982d8 SHA-1: 1df3f0ebf4f3b2d7e211500a74a6ef4127b755f3 SHA-256: 82cba2ef7834ca25a3f4ecb2decc60f677800d1a036f58e0974f9d263b99aeb5
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs and a document body that promotes game hacks and free accounts, indicating a lure for potentially malicious downloads. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs further supports a malicious intent to redirect users to harmful content. While no scripts were explicitly extracted, the document's structure and content suggest it's designed to trick users into visiting malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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.co/app/431946152/dantdm-roblox-free-account-pro-game-hack
    • http://elearning.hidayatussalam.sch.id/__statics/gudangsoal/files/free-unlimited-robux_GM431946152.pdf
    • https://elearning.hidayatussalam.sch.id/__statics/gudangsoal/files/coin-master-hack-link_GM406889139.pdf
    • http://elearning.hidayatussalam.sch.id/__statics/gudangsoal/files/get-free-robux-no-human-test_GM431946152.pdf
    • https://elearning.hidayatussalam.sch.id/__statics/gudangsoal/files/is-roblox-free-on-xbox_GM431946152.pdf
    • https://elearning.hidayatussalam.sch.id/__statics/gudangsoal/files/coin-master-how-to-get-free-pet-food_GM406889139.pdf
    • https://elearning.hidayatussalam.sch.id/__statics/gudangsoal/files/roblox-frost-guard-general-free_GM431946152.pdf
    • http://elearning.hidayatussalam.sch.id/__statics/gudangsoal/files/code-hack-nick-roblox_GM431946152.pdf
    • https://elearning.hidayatussalam.sch.id/__statics/gudangsoal/files/how-to-get-free-robux_GM431946152.pdf
    • https://elearning.hidayatussalam.sch.id/__statics/gudangsoal/files/how-to-hack-someones-roblox-account-2021_GM431946152.pdf
    • https://elearning.hidayatussalam.sch.id/__statics/gudangsoal/files/minecraft-free-download-iphone_GM479516143.pdf
    • https://elearning.hidayatussalam.sch.id/__statics/gudangsoal/files/mcpe_GM479516143.pdf
    • https://elearning.hidayatussalam.sch.id/__statics/gudangsoal/files/robuxfree-con_GM431946152.pdf
    • http://elearning.hidayatussalam.sch.id/__statics/gudangsoal/files/roblox-hack-codes_GM431946152.pdf
    • https://elearning.hidayatussalam.sch.id/__statics/gudangsoal/files/get-free-robux-without-doing-anything_GM431946152.pdf
    • https://elearning.hidayatussalam.sch.id/__statics/gudangsoal/files/coin-master-free-shield_GM406889139.pdf
    • http://elearning.hidayatussalam.sch.id/__statics/gudangsoal/files/free-texture-packs-for-minecraft-pe_GM479516143.pdf
    • http://elearning.hidayatussalam.sch.id/__statics/gudangsoal/files/get-free-robux-now_GM431946152.pdf
    • http://elearning.hidayatussalam.sch.id/__statics/gudangsoal/files/free-roblox-scripts_GM431946152.pdf
    • https://elearning.hidayatussalam.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-money-with-cheat-engine-64_GM431946152.pdf
    • http://elearning.hidayatussalam.sch.id/__statics/gudangsoal/files/android-coin-master-hack_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ff9.bin
9c1001306c5c49174d3333ac83c5889d42f557a10dd7bf59020a63be015fa8fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2FF9 21988 bytes
font_01_sfnt_off000060ca.bin
763f77ef12551017d7c8c5a5142bdf2a77a9dd3ae65b923ad14b6bf2d2fffd03		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60CA 19652 bytes

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