Malicious PDF — malware analysis report

Static analysis result for SHA-256 c401102c905888a6…

MALICIOUS

PDF

45.8 KB Created: 2021-06-03 05:05:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 916bde9a7028f9c2245dd07a3baf4983 SHA-1: 6124b0218ecc1f57b745c180e95c77ea404876f1 SHA-256: c401102c905888a6b14ee445367340c67c35ace78b04d8321c62e4910f6f3d36
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to websites offering game hacks and free currency, a common lure for phishing or malware distribution. The ML classifier also flagged this PDF as malicious. The primary IOC is the redirector URL, which likely leads to a malicious payload or further phishing content.

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/coin-master-free-spin-no-offers-game-hack PDF link annotation
    • http://perpus.stfm.ac.id/repository/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/minecraft-fly-hack_GM479516143.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/coin-master-cheats-2021_GM406889139.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/coin-master-hack-without-verification-ios_GM406889139.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/free-robux-microsoft_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/free-robux-no-download_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/coin-master-bonus_GM406889139.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/how-to-get-roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/www-coin-master-hack-com_GM406889139.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/wurst-commands_GM479516143.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/can-you-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/how-to-get-free-coins-in-mcpe-master_GM406889139.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/rbx-free_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/free-bobux_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004e96.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E96 25116 bytes
SHA-256: 60ed97ef0561f3d349433803ca26f9aa2fcf29cb56efb702be963f28948d0b90
font_01_sfnt_off000087d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87D3 2820 bytes
SHA-256: e5f6ec650849eefe6bc6a1649c2875ce35328d23e4196945bba66cc43e5a49d4
font_02_sfnt_off00009172.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9172 17884 bytes
SHA-256: eca834da90127d06b30cbbdb6bc39378e5aaec836d7f1468a5bfe601ae733219

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