Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3754336b560cf59…

MALICIOUS

PDF

34.3 KB Created: 2021-07-03 13:23:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 9815e2e147e528d698e262166a577363 SHA-1: de490a8fc7b7c4ad0b446a10dcd32a8027975c1c SHA-256: e3754336b560cf5968ecd6fce3bb66e63524103c703ca6e8b362e77fcc0d7930
102 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs and a link farm heuristic firing, suggesting it is designed to redirect users to external sites. The document body and extracted URLs indicate a lure related to game hacks and cheats, specifically for Roblox. The primary goal appears to be directing users to download or access potentially malicious content hosted on external domains.

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/431946152/roblox-hacked-version-game-hack PDF link annotation
    • http://opac.salatigakota.go.id/slims7/repository/how-to-get-a-free-face-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/haktuts-coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/roblox-weird_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/hacks-in-roblox-booga-booga_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/roblox-hack-codes_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/kengit-films-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/free-roblox-money-cheat-download_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/is-roblox-studio-free_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/cute-things-to-wear-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/how-to-get-minecraft-bedrock-edition-on-pc-for-free_GM479516143.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/www-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/free-robux-generator-2021-robux-hack-no-survey-updated_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/free-roblox-bc-card-codes_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/how-to-hack-roblox-servers_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/cm-spins_GM406889139.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/roblox-hack-menu_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/freecodepro-how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/minecraft-on-computer-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F35 22412 bytes
SHA-256: 0e2e8f5a00554241b22c0769324f1b5d5899a36b3f9b69aba750e15f450f1ef4
font_01_sfnt_off000060f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60F4 19084 bytes
SHA-256: e30baab197ea380a830251f11993b0159206347d5302a55b978f6309ced101e7

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