Malicious PDF — malware analysis report

Static analysis result for SHA-256 d30dab658c6ea0e5…

MALICIOUS

PDF

34.7 KB Created: 2021-06-27 12:14:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 872ff78c0726de4189a18ac61179977d SHA-1: bde21d7a6702b9826d8d728e27105ff9063d8a4f SHA-256: d30dab658c6ea0e52500578d0a511d6bdf36ce3f38d6bcf77c63930b2169bfe9
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 explicitly advertises methods to obtain free in-game currency or items for popular games. The presence of a clickable URI pointing to a raw IP address and the ML classifier's high confidence score indicate malicious intent. The document likely serves as a lure to download further malicious content or to phish user credentials.

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/how-to-get-free-stuff-on-roblox-ios-game-hack
    • http://118.174.0.244/UserFiles/File/can-you-actuallt-hack-robux_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/getrobux-info_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/hacks-para-roblox-hospital-roleplay-30_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/free-roblox-outfits_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/hack-roblox-jailbreak-2021-new_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/hoow-to-get-free-robux_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/free-tiktok-followers-2021_GM835599320.pdf
    • http://118.174.0.244/UserFiles/File/coin-master-free-spins-hack-apk-download_GM406889139.pdf
    • http://118.174.0.244/UserFiles/File/free-coin-and-spin-for-coin-master_GM406889139.pdf
    • http://118.174.0.244/UserFiles/File/minecraft-bedrock-for-free_GM479516143.pdf
    • http://118.174.0.244/UserFiles/File/free-robux-without-any-verification_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/how-to-get-free-coins-in-coin-master_GM406889139.pdf
    • http://118.174.0.244/UserFiles/File/how-to-get-the-free-pop-corn-hat-roblox_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/free-pet-snacks-coin-master_GM406889139.pdf
    • http://118.174.0.244/UserFiles/File/dominus-from-roblox-free_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/roblox-games-that-actually-give-you-free-robux_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/free-robux-websites-2021_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/how-to-get-free-robux-without-verifying_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/free-coin-master-hacks-no-verification_GM406889139.pdf
    • http://118.174.0.244/UserFiles/File/coin-master-free-link-daily_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002fe3.bin
cb2341f59d37b846e0b66bda80a8eb1b1b4c9b981f6b74d19f801926b412dbaa
pdf-font-stream PDF embedded font (sfnt) at offset 0x2FE3 22608 bytes
font_01_sfnt_off00006257.bin
0f514399482617608bbef40f6bd6887d214a5859dd0bbbb63e1fbe3ee143f267
pdf-font-stream PDF embedded font (sfnt) at offset 0x6257 19056 bytes