Malicious PDF — malware analysis report

Static analysis result for SHA-256 eed047fc45e006f9…

MALICIOUS

PDF

46.9 KB Created: 2021-05-16 02:33:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 130f02726c53832396a77afbd5fd3879 SHA-1: 5965cde984fd1fc41334206746a25c0a8be53f22 SHA-256: eed047fc45e006f948e7b928d7dfb785d805870b391233b01386eb8a80de0107
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a prominent link disguised as a 'free generator / game hack' lure, which is a common social engineering tactic. The primary URL, https://netcdn.xyz/app/431946152/free-unlimited-robux-game-hack, is directly associated with this lure. While no scripts were explicitly extracted, the PDF structure and the nature of the lure suggest an attempt to redirect the user to a potentially malicious site for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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/free-unlimited-robux-game-hack PDF link annotation
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-get-free-spins-on-coin-master-ios_GM406889139.pdfIn PDF document text
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/is-there-a-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-2021-free-spins_GM406889139.pdfIn PDF document text
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-get-free-robux-no-survey_GM431946152.pdfIn PDF document text
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-free-box_GM406889139.pdfIn PDF document text
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-minecraft-mods-for-pc_GM479516143.pdfIn PDF document text
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-get-minecraft-for-free-on-xbox-360_GM479516143.pdfIn PDF document text
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-free-gifts_GM406889139.pdfIn PDF document text
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/earn-free-robux_GM431946152.pdfIn PDF document text
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/minecraft-free-download-windows-10_GM479516143.pdfIn PDF document text
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-get-free-followers-on-roblox_GM431946152.pdfIn PDF document text
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/cm-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-link-may-2021_GM406889139.pdfIn PDF document text
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/master-coin-master-free-spin_GM406889139.pdfIn PDF document text
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/download-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-minecraft-videos_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004c78.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C78 25712 bytes
SHA-256: 1fff98e1e90d2bafd7ffd09898b4983a9bba5bbfba16bb8978dd0283f4db11dc
font_01_sfnt_off0000887e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x887E 3084 bytes
SHA-256: 4889dc98a6bfd3c9244583f92387be58625a91e7a969778ad35ada89b27ed636
font_02_sfnt_off00009324.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9324 18932 bytes
SHA-256: c9ac8ff14f07bfa737a68dd52966d36d325e06134ccd0dbc32924edcfa3e5a8c

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