Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3494ce81fbaa3ad…

MALICIOUS

PDF

48.5 KB Created: 2021-06-03 22:01:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 990a285dd2ded21913a00dae63721fe5 SHA-1: 41c4ed4142798a980ac31b4c24afdb0d44279afa SHA-256: c3494ce81fbaa3ad0d6b819587fba41e4e644e74e892cf9e9284a823ffb3a761
62 Risk Score

Malware Insights

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

The PDF document contains multiple embedded URLs and a visual download button lure, suggesting an attempt to trick the user into downloading malicious content. The ML classifier also flagged this PDF as malicious with high confidence. The document body and extracted URLs point towards lures for game hacks and cheats, which are often used to distribute malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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.online/app/479516143/free-minecraft-client-game-hack
    • http://libsmpn1balongpo.sch.id//repository/how-to-hack-any-roblox-account_GM431946152.pdf
    • http://libsmpn1balongpo.sch.id//repository/get-free-robux-now_GM431946152.pdf
    • http://libsmpn1balongpo.sch.id//repository/how-to-buy-robux-for-free_GM431946152.pdf
    • http://libsmpn1balongpo.sch.id//repository/coin-master-heaven-links_GM406889139.pdf
    • http://libsmpn1balongpo.sch.id//repository/coin-master-hack-tool-ios_GM406889139.pdf
    • http://libsmpn1balongpo.sch.id//repository/coin-master-free-spins-haktuts_GM406889139.pdf
    • http://libsmpn1balongpo.sch.id//repository/pubg-uc-daraz_GM1330123889.pdf
    • http://libsmpn1balongpo.sch.id//repository/free-roblox-website_GM431946152.pdf
    • http://libsmpn1balongpo.sch.id//repository/hacks-master-coin_GM406889139.pdf
    • http://libsmpn1balongpo.sch.id//repository/google-coin-master-free-spins_GM406889139.pdf
    • http://libsmpn1balongpo.sch.id//repository/free-robux-no-survey-or-human-verification_GM431946152.pdf
    • http://libsmpn1balongpo.sch.id//repository/best-free-spins-link-coin-master_GM406889139.pdf
    • http://libsmpn1balongpo.sch.id//repository/roblox-hack-me-robux_GM431946152.pdf
    • http://libsmpn1balongpo.sch.id//repository/how-to-get-free-stuff-on-roblox-2021_GM431946152.pdf
    • http://libsmpn1balongpo.sch.id//repository/how-to-hack-roblox-accounts-on-phone_GM431946152.pdf
    • http://libsmpn1balongpo.sch.id//repository/roblox-generator-com_GM431946152.pdf
    • http://libsmpn1balongpo.sch.id//repository/coin-master-free-spins-and-coins-blogspot_GM406889139.pdf
    • http://libsmpn1balongpo.sch.id//repository/how-do-you-get-free-roblox-money_GM431946152.pdf
    • http://libsmpn1balongpo.sch.id//repository/coin-master-spins-and-coins_GM406889139.pdf
    • http://libsmpn1balongpo.sch.id//repository/free-spins-coins-coin-master_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000509a.bin
de12d5a6cdcfdc0f89b1e0eafa53aa33bdd33074495db9149dcf305eb62507b7		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x509A 31912 bytes
font_01_sfnt_off00009306.bin
20dc0c19885f9eb84a70adf762c7af2bb5b336981fcfa4d14a25b177438c211a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9306 2856 bytes
font_02_sfnt_off00009cdb.bin
ce5b71cd939a97bbe405c9e475902c75b00f7b9e8e716883d10cd93b76626efe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9CDB 17644 bytes

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