Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7c0a5e6fe536785…

MALICIOUS

PDF

35.9 KB Created: 2021-06-25 09:44:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 6aaddd23a1ba41e062028b96bd06c652 SHA-1: 73ae85e0c05ade101fdc115a6c266260b1984b43 SHA-256: a7c0a5e6fe53678559bfee31eea292d0f2f452cfde60aa54bd78d358731bb6f7
62 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs, many pointing to IP addresses, that are designed to trick users into downloading game-related 'hacks' or 'cheats'. The ML classifier strongly indicated maliciousness, and the presence of external URIs and a call-to-action button further supports a phishing or malware distribution attempt. The document's content and structure suggest it is part of a social engineering campaign to deliver secondary payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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/wikihow-how-to-hack-someones-roblox-account-game-hack
    • http://118.174.0.244/UserFiles/File/minecraft-server-hacks_GM479516143.pdf
    • http://118.174.0.244/UserFiles/File/coin-master-cheat-apk-free-download_GM406889139.pdf
    • http://118.174.0.244/UserFiles/File/free-coin-master-hacks-no-verification-or-survey_GM406889139.pdf
    • http://118.174.0.244/UserFiles/File/hey-google-how-do-you-get-free-robux_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/roblox-games-that-give-you-free-robux_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/getrobux-now_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/roblox-free-item-codes_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/how-to-get-free-robux-a-simple-way_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/free-robux-script_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/free-coin-master-spins-link-facebook_GM406889139.pdf
    • http://118.174.0.244/UserFiles/File/coin-master-free-coins-link-2021_GM406889139.pdf
    • http://118.174.0.244/UserFiles/File/robux-hacks-2021_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/sake-roblox-hacks_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/free-robux-no-verification-or-survey-2021_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/tbc-oil-platform-roblox-free_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/april-2021-roblox-hacked_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/zoo-tycoon-cheats-roblox_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/www-cheatsguru-com-pc-roblox-cheats-codes_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/coin-master-free-blogspot_GM406889139.pdf
    • http://118.174.0.244/UserFiles/File/hack-version-coin-master-apk_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003265.bin
6b0c97b507cf57c5bb5b24a3450b5476fda07664f252466607623660b7db6f1f
pdf-font-stream PDF embedded font (sfnt) at offset 0x3265 22756 bytes
font_01_sfnt_off00006521.bin
8bcf3c07a44e419e70229d85ac6583f463d39c9a99af436936b0dd2106bbad77
pdf-font-stream PDF embedded font (sfnt) at offset 0x6521 19808 bytes