Malicious PDF — malware analysis report

Static analysis result for SHA-256 d109b227d8d61f27…

MALICIOUS

PDF

46.4 KB Created: 2021-05-12 02:01:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 5fd0e1dfbc9436fb08b8f407a70e1f55 SHA-1: ae9372dbd7e412217f3f635056f1d60b671c95f9 SHA-256: d109b227d8d61f276c0d7b4027cc9a5bf5c113af669132eb8783d5f4f2c2dd68
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded URLs and a visual download button lure, suggesting it is designed to trick users into downloading further malicious content. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of external URIs and the ML detection strongly indicate a malicious intent, likely related to malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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 https://netcdn.xyz/app/431946152/free-shirt-templates-roblox-game-hack
    • http://202.182.59.89/perpus/repository/coin-master-sound-daily-free-spins-link-today_GM406889139.pdf
    • http://202.182.59.89/perpus/repository/coin-master-free-daily-spins-today_GM406889139.pdf
    • http://202.182.59.89/perpus//repository/how-to-get-free-robux-on-roblox-2021_GM431946152.pdf
    • http://202.182.59.89/perpus//repository/how-to-get-free-robux-without-downloading-any-apps_GM431946152.pdf
    • http://202.182.59.89/perpus//repository/coin-master-link_GM406889139.pdf
    • http://202.182.59.89/perpus//repository/free-robux-download_GM431946152.pdf
    • http://202.182.59.89/perpus/repository/how-to-get-free-roblox-items_GM431946152.pdf
    • http://202.182.59.89/perpus/repository/free-spin-coin-master-hacktoman_GM406889139.pdf
    • http://202.182.59.89/perpus//repository/free-coin-master-hacks_GM406889139.pdf
    • http://202.182.59.89/perpus//repository/today-free-spin-coin-master_GM406889139.pdf
    • http://202.182.59.89/perpus//repository/coin-master-hack-no-verification-2021_GM406889139.pdf
    • http://202.182.59.89/perpus//repository/coin-master-hack-lost-world-2021-com_GM406889139.pdf
    • http://202.182.59.89/perpus//repository/hack-coin-master-ios-download_GM406889139.pdf
    • http://202.182.59.89/perpus/repository/minecraft-java-free-account_GM479516143.pdf
    • http://202.182.59.89/perpus//repository/free-spin-in-coin-master_GM406889139.pdf
    • http://202.182.59.89/perpus//repository/coin-master-daily-free-spins-link-today-2021_GM406889139.pdf
    • http://202.182.59.89/perpus/repository/offers-to-get-free-spins-in-coin-master_GM406889139.pdf
    • http://202.182.59.89/perpus//repository/pig-master-free-coins-and-spins_GM406889139.pdf
    • http://202.182.59.89/perpus//repository/strucid-aimbot_GM431946152.pdf
    • http://202.182.59.89/perpus//repository/coin-master-blogspot_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a7d.bin
c10f1f689aa19e4732b24d02cb1de9618288692e520cef51ae07a0c7f2d91e4f
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A7D 24956 bytes
font_01_sfnt_off0000841f.bin
40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf
pdf-font-stream PDF embedded font (sfnt) at offset 0x841F 3884 bytes
font_02_sfnt_off000090c6.bin
1d157663e44f707a78bf4c363a5a8b50c98b0fefede0b35a380be154b48f2d79
pdf-font-stream PDF embedded font (sfnt) at offset 0x90C6 19000 bytes