Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbe5617ac37f10ee…

MALICIOUS

PDF

48.1 KB Created: 2021-06-11 13:37:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: ae90e13426e078444a9d4093d5b73c6c SHA-1: 78b4b5274517127779c0cadda2462981113d69ff SHA-256: bbe5617ac37f10ee0cf5c9824a0e1c399388cc234ab1757c4fd616b1cf783844
102 Risk Score

Malware Insights

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

This PDF document contains numerous external links, many of which appear to be part of an SEO link farm designed to drive traffic to download sites. The presence of a 'download button' heuristic and the ML classifier's high confidence score indicate a malicious intent to trick users into downloading potentially harmful files. The document's content, though heavily obfuscated, suggests a lure related to game hacks.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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 https://netcdn.tw/app/431946152/roblox-hack-v1-2-download-game-hack
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spin-link-app_GM406889139.pdf
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-appsfor-coin-master-daily-rewards_GM406889139.pdf
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/get-robux-com_GM431946152.pdf
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-make-a-minecraft-bedrock-server-for-free_GM479516143.pdf
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/minecraft-font-free_GM479516143.pdf
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-face-roblox_GM431946152.pdf
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-make-a-free-minecraft-account_GM479516143.pdf
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-link-haktuts_GM406889139.pdf
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-get-free-followers-on-roblox_GM431946152.pdf
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-hack_GM406889139.pdf
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-get-free-hair-on-roblox_GM431946152.pdf
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/ww-robux_GM431946152.pdf
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/get-free-coins-for-coin-master_GM406889139.pdf
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-do-we-get-free-robux_GM431946152.pdf
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/op-rewards-free-robux_GM431946152.pdf
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/hacked-client-for-minecraft-bedrock_GM479516143.pdf
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/robux-matchcomfree-robux_GM431946152.pdf
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-game-hack-apk_GM406889139.pdf
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-hack-roblox_GM431946152.pdf
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-fan-page-free-spins_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005222.bin
b60a5f2dfaa99837e803dbbd28d2f8b10b8ec652f4229038853243700d15197d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5222 25676 bytes
font_01_sfnt_off00008ce3.bin
10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8CE3 2880 bytes
font_02_sfnt_off000096ce.bin
d65699384113bf32287d97ba702b92b5db7f78bd9e7b330859a07e02db448af2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x96CE 19052 bytes

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