Malicious PDF — malware analysis report

Static analysis result for SHA-256 592622527ecc72a5…

MALICIOUS

PDF

46.5 KB Created: 2021-06-11 07:24:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: cf30991bb6200448b87fa7376b0b93d7 SHA-1: 6898fee43ddbd203bcab89d928125b2634cf6ed1 SHA-256: 592622527ecc72a5b370dde6658eebb7708fbc7e8e7f104fe24c860a2fbe87e8
62 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs and a call-to-action phrase, suggesting it is designed to trick users into visiting malicious websites. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs, including one pointing to a raw IP address, reinforces this assessment. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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.tw/app/431946152/how-to-hack-roblox-cheat-engine-6.4-game-hack
    • http://111.68.26.74/widyapustaka/repository/how-to-get-minecraft-for-free-on-android-device_GM479516143.pdf
    • http://111.68.26.74/widyapustaka/repository/roblox-cheat-engine-table-2021_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/moonactive-coin-master-free-spins_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/minecraft-servers-that-allow-hacks_GM479516143.pdf
    • http://111.68.26.74/widyapustaka/repository/coin-master-facebook_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/free-robux-websites-that-actually-work-2021_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/robux-free-online_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/pokemon-go-free-coins-hack_GM1094591345.pdf
    • http://111.68.26.74/widyapustaka/repository/best-roblox-hack-download_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/free-roblox-promo-codes-for-robux_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/hack-de-roblox-robux_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/roblox-necklace-free-shipping_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/minecraft-hack-download_GM479516143.pdf
    • http://111.68.26.74/widyapustaka/repository/free-robux-hack-no-human-verification_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/comment-avoir-un-cheat-sur-roblox-jailbreak_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/free-robux-scams-malware-wikia_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/roblox-hack-client_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/follow-people-inyo-roblox-games-hack_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/free-coin-master-hacks-no-verification_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/free-spin-and-win-coin-master_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005268.bin
56ef64c4c2f419d16eb631c5e00f94f6fb6eebcb7bdd82a46d313f189fe26d1b
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5268 27496 bytes
font_01_sfnt_off00008fe3.bin
fd8dcc2f2bfe7dafbcb6f2f5fb965c1ca719ec9a5bcc056674a9caed3593dfde
pdf-font-stream PDF embedded font (sfnt) at offset 0x8FE3 19320 bytes