Malicious PDF — malware analysis report

Static analysis result for SHA-256 f31689b0b4742399…

MALICIOUS

PDF

34.9 KB Created: 2021-07-06 17:41:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: bcf7c920297d20d5547a2b6c0a7d2fa4 SHA-1: c23f20f60749478f6786084cf383c25ee767fe87 SHA-256: f31689b0b4742399e18b5359751ca71b9f714537bb9d8a5d223a237a19e5c74a
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains numerous embedded URLs and a document body that promotes "hacks" and "generators" for popular games, indicating a social engineering lure. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs, including one pointing to a raw IP address, suggests it is designed to redirect users to malicious content or download further payloads. No scripts were extracted from this sample.

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.tw/app/406889139/coin-master-hacks-2021-game-hack
    • http://111.68.26.74/widyapustaka/repository/is-there-any-tricks-or-working-hacks-for-coin-master_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/can-you-get-unbanned-for-hacking-roblox_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/roblox-hack-free-unlimited_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/free-robux-generator-2021-no-human-verification-or-survey_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/free-way-to-get-p-in-plaza-game-on-roblox_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/pokemon-go-free-coins-no-verification_GM1094591345.pdf
    • http://111.68.26.74/widyapustaka/repository/coin-master-tips_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/roblox-hackr-hack_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/bloxxerz-co-free-robux_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/how-to-hack-work-at-a-pizza-place-roblox-2021_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/free-spins-on-coin-master-generator_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/blox-best-robux_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/free-robux-no-verify-2021_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/classic-minecraft-net-hacks_GM479516143.pdf
    • http://111.68.26.74/widyapustaka/repository/roblox-how-to-hack-into-someones-account-2021_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/free-shades-in-roblox_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/free-robux-no-human-verification-or-survey-2021_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/free-coins-coin-master-blog_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/how-to-get-free-robux-in-roblox-2021-on-windows_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/how-to-get-free-robux-hack-real_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031d9.bin
3bd6aec3a1098f2a233dba55da9183c631d1e263671388c06678651c2adbdfdd
pdf-font-stream PDF embedded font (sfnt) at offset 0x31D9 22860 bytes
font_01_sfnt_off00006536.bin
8438728008f6ab05b5c9a65d4eeb1f2e5c23a436eadc11c6e76328f72b7d7fb7
pdf-font-stream PDF embedded font (sfnt) at offset 0x6536 18408 bytes