Malicious PDF — malware analysis report

Static analysis result for SHA-256 79e40fc2212b3951…

MALICIOUS

PDF

48.1 KB Created: 2021-05-19 05:30:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: d00607ae4c73d4cf530d80ec05afd249 SHA-1: 77f868b4ee980c7f42214609765063e5bdd24a16 SHA-256: 79e40fc2212b3951b5e5a3efd7e35ce36ffa27c581aac8d516c9d8edc05e1873
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, many of which are related to game hacks and free in-game currency, suggesting a lure for potentially unwanted or malicious downloads. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of embedded URLs and the document's theme strongly indicate a phishing or social engineering attempt to trick users into visiting malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9013

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.xyz/app/431946152/free-robux-no-human-verification-or-survey-or-download-2021-game-hack
    • http://loriginedupain.org/images/toolbox-for-minecraft-pe_GM479516143.pdf
    • http://loriginedupain.org/images/free-minecraft-gift-card_GM479516143.pdf
    • http://loriginedupain.org/images/how-to-get-free-robux-in-2021_GM431946152.pdf
    • http://loriginedupain.org/images/minecraft-hacks-18-9_GM479516143.pdf
    • http://loriginedupain.org/images/mc-hacks_GM479516143.pdf
    • http://loriginedupain.org/images/como-hackear-coin-master-iphone_GM406889139.pdf
    • http://loriginedupain.org/images/robux-hack-me_GM431946152.pdf
    • http://loriginedupain.org/images/coin-master-freebies-2021_GM406889139.pdf
    • http://loriginedupain.org/images/coin-spin_GM406889139.pdf
    • http://loriginedupain.org/images/coin-master-daily-free-spins_GM406889139.pdf
    • http://loriginedupain.org/images/free-robux-generator-no-human-verification-2021_GM431946152.pdf
    • http://loriginedupain.org/images/coin-master-free-coins-and-spins-2021_GM406889139.pdf
    • http://loriginedupain.org/images/free-spin-link-for-coin-master_GM406889139.pdf
    • http://loriginedupain.org/images/coin-master-free-spins-daily_GM406889139.pdf
    • http://loriginedupain.org/images/coin-master-free-spins-link-march-2021_GM406889139.pdf
    • http://loriginedupain.org/images/hack-coin-master-apk-32-download_GM406889139.pdf
    • http://loriginedupain.org/images/free-download-coin-master_GM406889139.pdf
    • http://loriginedupain.org/images/coin-master-hack-spins-and-coins-unlimited-free_GM406889139.pdf
    • http://loriginedupain.org/images/coin-master-hack-xyz-download-free_GM406889139.pdf
    • http://loriginedupain.org/images/how-to-hack-roblox-accounts-on-phone-2021_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b04.bin
4e20843e9c78cc7c70b3159a16e58799e8ad4f34db9dc725dfe591ad7b1555ea
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B04 27356 bytes
font_01_sfnt_off000089e7.bin
02b35010e2614e3cc95ac6414c49295350c91fdfcc4b4cad27ffdbc10e80df7f
pdf-font-stream PDF embedded font (sfnt) at offset 0x89E7 2912 bytes
font_02_sfnt_off000093e4.bin
66e5e50e12f5eb49621ab9bcd6ab85026409d616512a452c1eb3339dd9867554
pdf-font-stream PDF embedded font (sfnt) at offset 0x93E4 20136 bytes