Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6a0252f3d2f123e…

MALICIOUS

PDF

45.5 KB Created: 2021-06-04 02:41:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: e86b4231f63ece669d7ae64f5c6fbcf9 SHA-1: 34f87b12bcdca0f076149754e752f4575ae6073a SHA-256: d6a0252f3d2f123ebfa8ec36bd152c8473bfe1a027c0fe6db3494cd53c808236
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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/mosttechs-coin-master-free-spins-game-hack PDF link annotation
    • http://pustakafpsi.uin-suska.ac.id/repository/coin-master-games-download-free_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/minecraft-pvp-hacks_GM479516143.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/real-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/free-gifts-coin-master_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/roblox-www-com_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/robux-win_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/minecraft-xbox-360-free_GM479516143.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/roblox-robux_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/how-do-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/scaffold-minecraft-hack_GM479516143.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/robux-free-robux_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/how-to-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/rbx-land-free-robux_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/free-game-packs-for-coin-master_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/coin-master-hack-tuts_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/coin-master-hack-mod_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/coin-master-hack-no-root_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/roblox-free-items-glitch_GM431946152.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
stream_004_off00005180.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5180 30468 bytes
SHA-256: b07ce369a1aa650e5b4a4e78afd46504bd3bc8ddb8d70d809e138a2fd648d076
font_01_sfnt_off00009013.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9013 18052 bytes
SHA-256: 3faf773e8c2ca441acd39540fa8d38ff64b8ee6ceaa8632d1425631ed858a994

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