Malicious PDF — malware analysis report

Static analysis result for SHA-256 4792fd6032cfc182…

MALICIOUS

PDF

43.3 KB Created: 2021-05-13 14:09:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: d0654f93aa8d8dd5ddbbe11310522f26 SHA-1: c75bf577e593069d8907ac7052a9abfb1a1607aa SHA-256: 4792fd6032cfc18245022c78c98a37e1771a18b51ca84e9f440ab15f2d36759f
102 Risk Score

Malware Insights

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

This PDF document contains a large number of external links, many of which point to files related to game hacks and cheats. The presence of a "download" call-to-action suggests a lure to download further malicious content. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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.xyz/app/431946152/all-free-items-in-roblox-game-hack
    • https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/can-lucky-patcher-hack-coin-master_GM406889139.pdf
    • https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/coin-master-free-spins-and-coins-blogspot_GM406889139.pdf
    • https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/can-i-get-robux-for-free_GM431946152.pdf
    • https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/http-coin-master-hack-club_GM406889139.pdf
    • https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/free-robux-that-actually-works_GM431946152.pdf
    • https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/free-bobux_GM431946152.pdf
    • https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/coin-master-pc-hack-download_GM406889139.pdf
    • https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/coin-master-free-daily-spins-2021_GM406889139.pdf
    • https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/is-there-a-way-to-get-minecraft-for-free_GM479516143.pdf
    • https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/roblox-free-robux_GM431946152.pdf
    • https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/free-spin-coin-master-2021_GM406889139.pdf
    • https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/get-gold-coin-master-village-hack_GM406889139.pdf
    • https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/roblox-hack-2021_GM431946152.pdf
    • https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/free-robux-no-human-verification-generator_GM431946152.pdf
    • https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/how-to-setup-a-minecraft-server-for-free_GM479516143.pdf
    • https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/free-coin-master-spins-2021_GM406889139.pdf
    • https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/free-roblox-generator-for-roblox_GM431946152.pdf
    • https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/roblox-hack-game_GM431946152.pdf
    • https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/minecraft-free-unblocked_GM479516143.pdf
    • https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/free-roblox-hack_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004bdd.bin
2e8d1fa640dc51bfd412ac0e504a93ff5210289f254e1a11792486d6e609e9e4		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BDD 25284 bytes
font_01_sfnt_off000086e5.bin
33fa575e942d7ba38a015ae8cede41efd0632bb8ddda7beecb8e53db64cd625f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86E5 18312 bytes

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