Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d34b0f1f2448cc6…

MALICIOUS

PDF

36.0 KB Created: 2021-07-07 15:21:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 2f229abafa9e41d22ce2d6c3f2bd8c85 SHA-1: 2cfb27d81e5148085e39c9127e55389699be1893 SHA-256: 3d34b0f1f2448cc67c09b2a0c97776e462daf2e84e96892c8d3394e1a381e13b
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document contains numerous links to external websites, many of which are hosted on the 'iseas.com' domain and appear to be part of a link farm. The primary URL, http://netcdn.tw/app/406889139/daily-coin-master-free-spins-game-hack, suggests a lure for game-related cheats or hacks. The ML classifier strongly indicated maliciousness, and the presence of a download button heuristic further supports a malicious intent to trick users into downloading further payloads.

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.tw/app/406889139/daily-coin-master-free-spins-game-hack
    • https://www.iseas.com/uploaded_files/userfiles/files/avatar-roblox-free-items_GM431946152.pdf
    • https://www.iseas.com/uploaded_files/userfiles/files/pokemon-go-free-kr-hack_GM1094591345.pdf
    • https://www.iseas.com/uploaded_files/userfiles/files/coin-master-free-fire_GM406889139.pdf
    • https://www.iseas.com/uploaded_files/userfiles/files/free-robux-infinity_GM431946152.pdf
    • https://www.iseas.com/uploaded_files/userfiles/files/minecraft-maps-pe-free-download_GM479516143.pdf
    • https://www.iseas.com/uploaded_files/userfiles/files/roblox-super-power-training-simulator-hack-download_GM431946152.pdf
    • https://www.iseas.com/uploaded_files/userfiles/files/how-can-you-get-free-robux_GM431946152.pdf
    • https://www.iseas.com/uploaded_files/userfiles/files/how-to-get-robux-for-free-hacking_GM431946152.pdf
    • https://www.iseas.com/uploaded_files/userfiles/files/how-to-get-free-robux-without-verification_GM431946152.pdf
    • https://www.iseas.com/uploaded_files/userfiles/files/coin-master-free-daily-spins-2021_GM406889139.pdf
    • https://www.iseas.com/uploaded_files/userfiles/files/free-robux-codes-new_GM431946152.pdf
    • https://www.iseas.com/uploaded_files/userfiles/files/c00lkidds-roblox-hack-client-rc7_GM431946152.pdf
    • https://www.iseas.com/uploaded_files/userfiles/files/how-to-get-free-coins-in-coin-master_GM406889139.pdf
    • https://www.iseas.com/uploaded_files/userfiles/files/free-robux-websites-no-human-verification_GM431946152.pdf
    • https://www.iseas.com/uploaded_files/userfiles/files/bloxpage-free-robux_GM431946152.pdf
    • https://www.iseas.com/uploaded_files/userfiles/files/minecraft-kill-aura_GM479516143.pdf
    • https://www.iseas.com/uploaded_files/userfiles/files/coin-master-unlimited-spin-apk-free-download_GM406889139.pdf
    • https://www.iseas.com/uploaded_files/userfiles/files/how-to-get-free-roblox-money_GM431946152.pdf
    • https://www.iseas.com/uploaded_files/userfiles/files/where-can-i-get-free-spins-for-coin-master_GM406889139.pdf
    • https://www.iseas.com/uploaded_files/userfiles/files/roblox-4-free-items_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003703.bin
78cb88a0de87b926fc01871d9fd886ff74b2fe658773ef8c0865498eaa900643		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3703 22604 bytes
font_01_sfnt_off00006941.bin
f67cf45397c25494501e3e9871b79c38ca25439d2209cefdb99d193c8fd940d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6941 18596 bytes

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