Malicious PDF — malware analysis report

Static analysis result for SHA-256 acde62e691c99f9c…

MALICIOUS

PDF

46.2 KB Created: 2021-06-03 05:36:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 23a88319eb2d55e0fa0916a8f90443d1 SHA-1: 8270e826f2f2e86395f1ef22ab3c324aaca6c27d SHA-256: acde62e691c99f9cc3a466423c68672ac6da13e34902f6e4e2fab3a126fdd07f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to sites offering game hacks and generators, a common lure for malware distribution or phishing. The ML classifier also flagged this PDF as malicious. While no scripts were directly extracted, the presence of embedded URLs and the nature of the lure suggest an attempt to trick the user into downloading a secondary payload or visiting a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9797

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.online/app/406889139/free-coin-master-spins-daily-game-hack PDF link annotation
    • http://etd.ilmukomunikasi.fisip.ulm.ac.id//repository/minecraft-windows-10-hack-client-2021_GM479516143.pdfIn PDF document text
    • http://etd.ilmukomunikasi.fisip.ulm.ac.id/repository/coin-master-hack-app-download-free_GM406889139.pdfIn PDF document text
    • http://etd.ilmukomunikasi.fisip.ulm.ac.id//repository/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://etd.ilmukomunikasi.fisip.ulm.ac.id/repository/free-spin-coin-master-twitter_GM406889139.pdfIn PDF document text
    • http://etd.ilmukomunikasi.fisip.ulm.ac.id//repository/wwwcoin-master-hack-game-download_GM406889139.pdfIn PDF document text
    • http://etd.ilmukomunikasi.fisip.ulm.ac.id/repository/roblox-promo-codes-2021-robux_GM431946152.pdfIn PDF document text
    • http://etd.ilmukomunikasi.fisip.ulm.ac.id//repository/coin-master-hack-ios-12_GM406889139.pdfIn PDF document text
    • http://etd.ilmukomunikasi.fisip.ulm.ac.id/repository/coin-master-hack-mod-apk-35-8_GM406889139.pdfIn PDF document text
    • http://etd.ilmukomunikasi.fisip.ulm.ac.id//repository/how-do-you-get-free-food-on-coin-master_GM406889139.pdfIn PDF document text
    • http://etd.ilmukomunikasi.fisip.ulm.ac.id/repository/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://etd.ilmukomunikasi.fisip.ulm.ac.id/repository/freespinandcoin-blogspot_GM406889139.pdfIn PDF document text
    • http://etd.ilmukomunikasi.fisip.ulm.ac.id/repository/minecraft-client_GM479516143.pdfIn PDF document text
    • http://etd.ilmukomunikasi.fisip.ulm.ac.id//repository/coin-master-hack-100-working_GM406889139.pdfIn PDF document text
    • http://etd.ilmukomunikasi.fisip.ulm.ac.id/repository/roblox-arsenal-hack-script-pastebin_GM431946152.pdfIn PDF document text
    • http://etd.ilmukomunikasi.fisip.ulm.ac.id/repository/roblox-printables-free_GM431946152.pdfIn PDF document text
    • http://etd.ilmukomunikasi.fisip.ulm.ac.id//repository/2021-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://etd.ilmukomunikasi.fisip.ulm.ac.id//repository/coin-master-cheats-for-free-spins_GM406889139.pdfIn PDF document text
    • http://etd.ilmukomunikasi.fisip.ulm.ac.id//repository/roblox-avatar-free_GM431946152.pdfIn PDF document text
    • http://etd.ilmukomunikasi.fisip.ulm.ac.id/repository/ac-market-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://etd.ilmukomunikasi.fisip.ulm.ac.id/repository/roblox-free-play_GM431946152.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_004_off00004f69.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F69 24784 bytes
SHA-256: 9cf485ad76feec9097c3333e23e889ef6f3a4b3c40562f24966624516bca2a97
font_01_sfnt_off000086e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86E6 18308 bytes
SHA-256: 55b350ba652cc81c58cde26cd3be3a49d0b7ceb69ba015e6646fbbf561effc1c
font_02_sfnt_off0000a8fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA8FA 3264 bytes
SHA-256: e32c06502c11b52acb5e814091c5fdbffd1e2a904ac7a9cfb8b5b180bd139088

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