Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad82cd3551276bce…

MALICIOUS

PDF

35.3 KB Created: 2021-06-25 05:32:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: a929aac5c3c0fa588646c16c4862fced SHA-1: 93861a0deee6f98c17d7ef01ee49639fc43f8cbe SHA-256: ad82cd3551276bce736e016877c5fc8833757920e843197d62271bb31b895142
102 Risk Score

Malware Insights

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

The PDF document contains numerous links to external resources, many of which are disguised as game hacks or cheats for popular titles like Roblox and Coin Master. The ML classifier strongly indicates maliciousness, and the presence of a link farm suggests an attempt to distribute malware or lead users to phishing sites. The document's content and structure align with a lure to download potentially harmful files.

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/hack-roblox-espaol-game-hack
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/coin-master-online-hack-download_GM406889139.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/archery-master-3d-hack-unlimited-coins-cheats_GM406889139.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/coin-master-free-spin-and-coin_GM406889139.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/how-to-get-a-lot-of-robux_GM431946152.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/how-to-get-minecraft-for-free-ios_GM479516143.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/roblox-prison-life-hack_GM431946152.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/how-to-get-free-robux-instantly_GM431946152.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/free-roblox-characters_GM431946152.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/free-spins-coin-master-links-2021_GM406889139.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/roblox-free-game-free-to-play_GM431946152.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/hackear-coin-master-espaol_GM406889139.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/earn-robux-today-earn-robux-today_GM431946152.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/coin-master-hack-pc-download_GM406889139.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/coin-master-free-coins-and-spins-2021_GM406889139.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/free-roblox-accounts-with-builders-club_GM431946152.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/can-i-get-minecraft-windows-10-for-free_GM479516143.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/pubg-uc-india_GM1330123889.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/a-promocode-that-gets-us-free-robux-no-waiting_GM431946152.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/roblox-2021-unused-giftcards-for-free_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003411.bin
e088447dbca1eb215d7ae4c8cf2c0296bd3290b9d0f11e5884d1178b4ac32183		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3411 22360 bytes
font_01_sfnt_off00006585.bin
99c552f51a7a65be7a05ef34845f5c497f52235e172c4cf0d68be14f64dd129c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6585 18832 bytes

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