Malicious PDF — malware analysis report

Static analysis result for SHA-256 280be78301fc3c13…

MALICIOUS

PDF

56.6 KB Created: 2021-05-12 05:43:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 169b9c4936548635b6fafd0ad2cda2a0 SHA-1: a62f60cba72aed447eb666dac4cf41d1a6fc66a8 SHA-256: 280be78301fc3c139ea8ec108329c5e6212c3391652a7eb6113087dddd88c9ed
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links 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. While no scripts were directly extracted, the embedded links suggest a workflow designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8167

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-free-spins-link-today-blogspot-game-hack PDF link annotation
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/minecraft-hacks-ps4_GM479516143.pdfIn PDF document text
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/claimrbx-free-robux_GM431946152.pdfIn PDF document text
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/how-to-get-free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/coin-master-bonus_GM406889139.pdfIn PDF document text
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/how-to-win-robux_GM431946152.pdfIn PDF document text
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/minecraft-logo-maker-free_GM479516143.pdfIn PDF document text
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/info-roblox-com-robux_GM431946152.pdfIn PDF document text
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/coin-master-hack-apk-download-for-android_GM406889139.pdfIn PDF document text
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/is-coin-master-free_GM406889139.pdfIn PDF document text
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/real-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/coin-master-free-spins-no-generator_GM406889139.pdfIn PDF document text
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/roblox-robux-page_GM431946152.pdfIn PDF document text
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/coin-master-free-spins-link-quora_GM406889139.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004d33.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D33 26716 bytes
SHA-256: 23f3abec0e1a14299c1b803acf5b85e71f94eda4c77be84614b41e6eb5d02771
font_01_sfnt_off00008c1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C1B 3088 bytes
SHA-256: e7854aff7cbc8fbdeb85d2b3d6248d12dc820ede8a581f4eac107fa6446c2222
font_02_sfnt_off000096e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96E6 7960 bytes
SHA-256: cf7ae5cf6bef3222f5a26bec705b492fed0278aec6b16ec101aeda46e0edd2b2
font_03_sfnt_off0000aa0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA0B 18988 bytes
SHA-256: 1a94c2a9bc7d67929b2b5125a5437c33a0f1d263f98c1f8ab91c7c8b0822f9c3
font_04_sfnt_off0000ce3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE3C 4272 bytes
SHA-256: fac9a06ceb5574feb8580c075df3ef69dfbd0efa4947186cfe90f11b68eaafb0

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