Malicious PDF — malware analysis report

Static analysis result for SHA-256 6049412df60bcd98…

MALICIOUS

PDF

44.0 KB Created: 2021-05-13 22:50:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: af5d8efbf18f80d1d6b77331f4493351 SHA-1: 07c4c21e0f04be889e199a45c5ee71bee3b8f220 SHA-256: 6049412df60bcd9805d996b2c6b7a9311ae66973f99daa291f6dae6edd783794
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 0.9648

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/406889139/coin-master-hack-programers-game-hack PDF link annotation
    • http://katalog.ireyogya.org/repository/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-invite-friends-free-spins_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-fan-page_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/robuxmatch-com-free-robux_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/minecraft-free-download-mobile_GM479516143.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-free-generator_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/www-coin-master-hack-com_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-code-for-free-spins_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-100-spin_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-download_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-free-spins-through-coin-pop_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/easy-robux-hack_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/minecraft-pocket-edition-free_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_off0000489d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x489D 23964 bytes
SHA-256: bf4ea950e13f08c1b3d9256164b630f416a488376f1209c80a4c28762a909f7f
font_01_sfnt_off00007f63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F63 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00008915.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8915 18416 bytes
SHA-256: 9b1b86d518bbcbecce2ac7037f2b10fa6fa9b3d2e28cf0c2cd03817ae8459785

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