Malicious PDF — malware analysis report

Static analysis result for SHA-256 498398eb4f3abfad…

MALICIOUS

PDF

35.0 KB Created: 2021-06-30 00:13:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 0808108701b6c4d602f51caa3d89dbdc SHA-1: e645346b253e7de3b97a41f7740bfc6ddafa6f6c SHA-256: 498398eb4f3abfadfe170cb8341e494d924045782753e66ceb63e180046dbd23
102 Risk Score

Malware Insights

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

The PDF document contains numerous links designed to lure users into downloading potentially malicious files, promising in-game currency or cheats for popular games like Roblox and Coin Master. The ML classifier strongly indicated maliciousness, and the presence of a link farm suggests an attempt to distribute malware or facilitate further exploitation. No scripts were extracted, but the document's structure and embedded URLs point to a social engineering attack.

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/robux-cheat-game-hack
    • https://perpus.uwhs.ac.id/repository/how-to-send-proof-of-hacker-on-roblox_GM431946152.pdf
    • https://perpus.uwhs.ac.id/repository/how-to-cheat-roblox-robux-2021_GM431946152.pdf
    • https://perpus.uwhs.ac.id/repository/how-to-get-free-robux-easy-hack_GM431946152.pdf
    • https://perpus.uwhs.ac.id/repository/coin-master-links-free-spins_GM406889139.pdf
    • https://perpus.uwhs.ac.id/repository/free-roblox-accounts-with-robux-and-builders-club_GM431946152.pdf
    • https://perpus.uwhs.ac.id/repository/how-to-hack-roblox-to-get-robux_GM431946152.pdf
    • https://perpus.uwhs.ac.id/repository/how-can-i-get-free-spins-on-coin-master_GM406889139.pdf
    • https://perpus.uwhs.ac.id/repository/free-robux-hack-generator-club-no-human-verification_GM431946152.pdf
    • https://perpus.uwhs.ac.id/repository/rbxoffers-com-free-robux_GM431946152.pdf
    • https://perpus.uwhs.ac.id/repository/free-spins-on-coin-master_GM406889139.pdf
    • https://perpus.uwhs.ac.id/repository/roblox-hack-2021-download_GM431946152.pdf
    • https://perpus.uwhs.ac.id/repository/how-to-get-free-robux-quick-and-easily_GM431946152.pdf
    • https://perpus.uwhs.ac.id/repository/coin-master-hack-download-2021_GM406889139.pdf
    • https://perpus.uwhs.ac.id/repository/roblox-rocitizens-how-to-get-free-money_GM431946152.pdf
    • https://perpus.uwhs.ac.id/repository/olais-only-robux-hack_GM431946152.pdf
    • https://perpus.uwhs.ac.id/repository/dragon-ball-final-stand-roblox-hack_GM431946152.pdf
    • https://perpus.uwhs.ac.id/repository/free-game-pack-with-google-play-coin-master_GM406889139.pdf
    • https://perpus.uwhs.ac.id/repository/roblox-royal-high-cheates_GM431946152.pdf
    • https://perpus.uwhs.ac.id/repository/free-robux-no-human-verification-no-survey_GM431946152.pdf
    • https://perpus.uwhs.ac.id/repository/como-hackear-coin-master_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000333b.bin
6b495ee50a382a1b95b325a7be041d3e5de14c7fdbef0183fe973e9c31b3e4b6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x333B 22124 bytes
font_01_sfnt_off00006489.bin
37f2cbed7862a525c1327ce05c27341cf40a6b7f3d64c9c700a10f02169ccde8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6489 18820 bytes

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