Malicious PDF — malware analysis report

Static analysis result for SHA-256 05e0137c2a34b76c…

MALICIOUS

PDF

34.2 KB Created: 2021-06-18 17:07:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 98c298c5576c59589d3cef397a30ad6f SHA-1: d42e0d36eca17b01d46008707e6e09ec39530dd4 SHA-256: 05e0137c2a34b76cf441116cc0c476a9983c1a3a93899cc87d21f3dc61da92eb
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs and a 'download button' lure, strongly suggesting a phishing or malware distribution attempt. The ML classifier and PDF link farm heuristics indicate a high likelihood of malicious intent. The document body and extracted URLs focus on 'free game currency' and 'hacks', which are common pretexts for such attacks.

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/free-account-roblox-2021-obc-game-hack
    • http://digilib.stimlog.ac.id/repository/how-do-you-get-free-roblox_GM431946152.pdf
    • https://digilib.stimlog.ac.id/repository/is-roblox-account-hacked_GM431946152.pdf
    • http://digilib.stimlog.ac.id/repository/martian-lettuce-coin-master-free_GM406889139.pdf
    • https://digilib.stimlog.ac.id/repository/i-want-free-robux_GM431946152.pdf
    • https://digilib.stimlog.ac.id/repository/free-roblox-accounts-2021-with-robux_GM431946152.pdf
    • http://digilib.stimlog.ac.id/repository/eviction-notice-roblox-hack_GM431946152.pdf
    • http://digilib.stimlog.ac.id/repository/mine-minecraft-games-for-free_GM479516143.pdf
    • http://digilib.stimlog.ac.id/repository/coin-master-hack-tool-v1-9-download-free_GM406889139.pdf
    • http://digilib.stimlog.ac.id/repository/hack-coin-master-game-download_GM406889139.pdf
    • https://digilib.stimlog.ac.id/repository/descargar-hacks-para-roblox-2021-sin-parchear_GM431946152.pdf
    • https://digilib.stimlog.ac.id/repository/roblox-speed-and-jump-hack_GM431946152.pdf
    • https://digilib.stimlog.ac.id/repository/free-coin-master-cards_GM406889139.pdf
    • https://digilib.stimlog.ac.id/repository/coin-master-free-spins-link-today-new_GM406889139.pdf
    • http://digilib.stimlog.ac.id/repository/coin-master-free-spins-link-2021-twitter_GM406889139.pdf
    • https://digilib.stimlog.ac.id/repository/how-to-get-free-robux-games_GM431946152.pdf
    • http://digilib.stimlog.ac.id/repository/rbx-earn_GM431946152.pdf
    • https://digilib.stimlog.ac.id/repository/free-spin-today-coin-master_GM406889139.pdf
    • http://digilib.stimlog.ac.id/repository/how-to-get-free-gear-in-roblox-2021_GM431946152.pdf
    • http://digilib.stimlog.ac.id/repository/coin-master-free-daily-spins-and-coins_GM406889139.pdf
    • http://digilib.stimlog.ac.id/repository/roblox-character-cheat_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000305c.bin
22ee8fe4d4aae380971e57b6d35f63cc40e8eac83f2f5dfffb1848e0943d7a39		 pdf-font-stream PDF embedded font (sfnt) at offset 0x305C 21588 bytes
font_01_sfnt_off00005fd1.bin
08e6b685e60b2fb0743662b2aae9c5eaa39f614ebe431740ee71175607b5950d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FD1 19296 bytes

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