Malicious PDF — malware analysis report

Static analysis result for SHA-256 61c80db71ab261aa…

MALICIOUS

PDF

36.0 KB Created: 2021-07-05 22:45:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: bf549c6b151c2e4510ecec832c5ff17a SHA-1: afca2c5d9c0c89374a1116b59afa29b4829b9730 SHA-256: 61c80db71ab261aaecb70c52ea244c94a6cbeffeaa804eca88f78d4789fef63f
102 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links, identified as a link farm, that direct users to websites offering game hacks and free in-game currency generators. The document body explicitly mentions 'Minecraft Pe Apk Download Free' and includes URLs for various game-related exploits and cheats. This suggests a social engineering tactic to lure users into downloading potentially malicious software or engaging in scam-related activities.

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/479516143/minecraft-pe-apk-download-free-015-0-game-hack
    • http://www.romento.com/uploaded_files/userfiles/files/coin-master-hack-app_GM406889139.pdf
    • http://www.romento.com/uploaded_files/userfiles/files/pokemon-go-free-offers_GM1094591345.pdf
    • http://www.romento.com/uploaded_files/userfiles/files/roblox-lumber-tycon-2-menu-no-cheat-engine_GM431946152.pdf
    • http://www.romento.com/uploaded_files/userfiles/files/free-robux-generator-2021_GM431946152.pdf
    • http://www.romento.com/uploaded_files/userfiles/files/coin-master-free-spins-link-today-facebook_GM406889139.pdf
    • http://www.romento.com/uploaded_files/userfiles/files/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdf
    • http://www.romento.com/uploaded_files/userfiles/files/roblox-play-as-guest-free_GM431946152.pdf
    • http://www.romento.com/uploaded_files/userfiles/files/how-to-actually-get-free-robux-2021_GM431946152.pdf
    • http://www.romento.com/uploaded_files/userfiles/files/what-is-exploiting-in-roblox_GM431946152.pdf
    • http://www.romento.com/uploaded_files/userfiles/files/how-to-get-free-robux-without-a-human-verification_GM431946152.pdf
    • http://www.romento.com/uploaded_files/userfiles/files/coin-master-free-coins-and-spins_GM406889139.pdf
    • http://www.romento.com/uploaded_files/userfiles/files/coin-master-free-coins-amp_GM406889139.pdf
    • http://www.romento.com/uploaded_files/userfiles/files/free-robux-obby-june-2021_GM431946152.pdf
    • http://www.romento.com/uploaded_files/userfiles/files/how-do-you-get-hacks-on-roblox_GM431946152.pdf
    • http://www.romento.com/uploaded_files/userfiles/files/naruto-universe-hack-roblox_GM431946152.pdf
    • http://www.romento.com/uploaded_files/userfiles/files/minecraft-esp_GM479516143.pdf
    • http://www.romento.com/uploaded_files/userfiles/files/minecraft-free-download-linux_GM479516143.pdf
    • http://www.romento.com/uploaded_files/userfiles/files/cm-free-spin-link-today_GM406889139.pdf
    • http://www.romento.com/uploaded_files/userfiles/files/free-minecraft-bedrock-server-hosting_GM479516143.pdf
    • http://www.romento.com/uploaded_files/userfiles/files/how-to-do-attack-speed-hack-roblox-2021-feb_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003594.bin
1aeefccf2248d9da4018814051844e2f61a27febcf0a4311a70144f1b36ecafb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3594 22068 bytes
font_01_sfnt_off00006672.bin
6ab0bb34bdf9936d74a5069a2fe515894561d4fac5c5667c4e53c9feabf663f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6672 19488 bytes

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