Malicious PDF — malware analysis report

Static analysis result for SHA-256 58b6a3aca8172519…

MALICIOUS

PDF

33.1 KB Created: 2021-07-04 08:03:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: b48a2754a7892d4fb647c98bd7c00a33 SHA-1: fb5c3624ac93e1c6682d736f90f6e7fcc01bcfb6 SHA-256: 58b6a3aca817251980e4da3cee5638b981288133960799ca71136844dc73679f
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a document body that explicitly advertises methods to obtain free in-game currency and social media followers. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs suggests a phishing or scam attempt. The document's content and embedded links indicate a lure for users seeking cheats or hacks, likely leading to malicious websites.

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.tw/app/835599320/how-to-get-free-tiktok-fans-game-hack
    • http://www.amtqatar.com/uploaded_files/userfiles/files/free-4-robux_GM431946152.pdf
    • http://www.amtqatar.com/uploaded_files/userfiles/files/free-robux-without-human-verification-real_GM431946152.pdf
    • http://www.amtqatar.com/uploaded_files/userfiles/files/robux-hack-2021_GM431946152.pdf
    • http://www.amtqatar.com/uploaded_files/userfiles/files/how-to-get-free-followers-on-tiktok-without-verification_GM835599320.pdf
    • http://www.amtqatar.com/uploaded_files/userfiles/files/coin-master-how-to-get-free-pet-food_GM406889139.pdf
    • http://www.amtqatar.com/uploaded_files/userfiles/files/play-minecraft-online-free_GM479516143.pdf
    • http://www.amtqatar.com/uploaded_files/userfiles/files/coin-master-spins-hack_GM406889139.pdf
    • http://www.amtqatar.com/uploaded_files/userfiles/files/how-to-hack-roblox-accounts-on-phone_GM431946152.pdf
    • http://www.amtqatar.com/uploaded_files/userfiles/files/coin-master-hack-apk-ios_GM406889139.pdf
    • http://www.amtqatar.com/uploaded_files/userfiles/files/new-hack-for-roblox-2021-december-download-mediafire_GM431946152.pdf
    • http://www.amtqatar.com/uploaded_files/userfiles/files/cheat-engine-roblox-jump-may-2021_GM431946152.pdf
    • http://www.amtqatar.com/uploaded_files/userfiles/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdf
    • http://www.amtqatar.com/uploaded_files/userfiles/files/how-to-get-free-spins-on-coin-master-game_GM406889139.pdf
    • http://www.amtqatar.com/uploaded_files/userfiles/files/coin-master-daily-free-spins-link-2021-today_GM406889139.pdf
    • http://www.amtqatar.com/uploaded_files/userfiles/files/yanisalternalt-free-robux_GM431946152.pdf
    • http://www.amtqatar.com/uploaded_files/userfiles/files/how-to-hack-roblox-hack_GM431946152.pdf
    • http://www.amtqatar.com/uploaded_files/userfiles/files/latest-free-spin-coin-master-daily_GM406889139.pdf
    • http://www.amtqatar.com/uploaded_files/userfiles/files/roblox-game-for-free-download_GM431946152.pdf
    • http://www.amtqatar.com/uploaded_files/userfiles/files/coin-master-hack-spins_GM406889139.pdf
    • http://www.amtqatar.com/uploaded_files/userfiles/files/how-to-hack-roblox-on-youtube-on-your-phone_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030a2.bin
86f38ba05aa5b93f53ddcef3f35f24c03b1103713f07d1b06e906428603d1104		 pdf-font-stream PDF embedded font (sfnt) at offset 0x30A2 21324 bytes
font_01_sfnt_off00005f0f.bin
222eb08edeedde1689b759aacda99c23c4abb9fb81db3950380ec99717b0bd03		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F0F 18136 bytes

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