Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6fb7169d1e49a37…

MALICIOUS

PDF

35.7 KB Created: 2021-06-22 21:42:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 3250b2ced4c0fd86002caaec9d5bd70f SHA-1: 3aa29474129adceecbf449ed07d2433fb2370555 SHA-256: d6fb7169d1e49a370017f6b6b1d845785a95ae0899700ab6924c314b1732128f
102 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 heuristic firing for a PDF link farm, indicating an attempt to redirect users to external sites. The document body and extracted URLs suggest a lure for game hacks and cheats, likely leading to malware download or exploitation. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/roblox-health-hack-game-hack
    • https://www.orbai.ai/uploaded_files/userfiles/files/coin-master-hack-fast-org_GM406889139.pdf
    • https://www.orbai.ai/uploaded_files/userfiles/files/coin-master-hack-version-download-2021-android_GM406889139.pdf
    • https://www.orbai.ai/uploaded_files/userfiles/files/play-full-version-of-minecraft-for-free-no-download_GM479516143.pdf
    • https://www.orbai.ai/uploaded_files/userfiles/files/coin-master-unlimited-spin-link_GM406889139.pdf
    • https://www.orbai.ai/uploaded_files/userfiles/files/coin-master-village-cost_GM406889139.pdf
    • https://www.orbai.ai/uploaded_files/userfiles/files/coin-master-free-spins-twitter_GM406889139.pdf
    • https://www.orbai.ai/uploaded_files/userfiles/files/minecraft-pe-server-hosting-free_GM479516143.pdf
    • https://www.orbai.ai/uploaded_files/userfiles/files/free-robux-generator-com-roblox-hack_GM431946152.pdf
    • https://www.orbai.ai/uploaded_files/userfiles/files/how-to-get-free-knives-in-assassin-roblox-2021_GM431946152.pdf
    • https://www.orbai.ai/uploaded_files/userfiles/files/how-to-get-free-roblox-hacks_GM431946152.pdf
    • https://www.orbai.ai/uploaded_files/userfiles/files/free-spins-for-coin-master-on-1-19-19_GM406889139.pdf
    • https://www.orbai.ai/uploaded_files/userfiles/files/free-coin-master-game_GM406889139.pdf
    • https://www.orbai.ai/uploaded_files/userfiles/files/how-to-get-free-robux-on-the-computer_GM431946152.pdf
    • https://www.orbai.ai/uploaded_files/userfiles/files/how-do-i-get-minecraft-for-free_GM479516143.pdf
    • https://www.orbai.ai/uploaded_files/userfiles/files/how-to-get-free-minecraft-skins_GM479516143.pdf
    • https://www.orbai.ai/uploaded_files/userfiles/files/game-hunters-coin-master_GM406889139.pdf
    • https://www.orbai.ai/uploaded_files/userfiles/files/free-robux-without-verification_GM431946152.pdf
    • https://www.orbai.ai/uploaded_files/userfiles/files/gold-cards-coin-master-hack_GM406889139.pdf
    • https://www.orbai.ai/uploaded_files/userfiles/files/all-coin-master-spin-link-and-free-download_GM406889139.pdf
    • https://www.orbai.ai/uploaded_files/userfiles/files/roblox-password-hacker_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000033b4.bin
fab6bb919fadbbd3d2837c8297b8d07f739f61792b162063ecc9ace29f8a92d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x33B4 22896 bytes
font_01_sfnt_off0000670c.bin
2529e37c2462782e07bd0c5e9f4db73557a6459d43e14774c212d6804f15f2b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x670C 18928 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.