Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec37a19d483a20f4…

MALICIOUS

PDF

42.4 KB Created: 2021-05-12 10:36:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 443f7cb553d14a13fbf1dd19a5ad7e9e SHA-1: 2d5d9e79089fdffca837f0dbe74af54932bf984a SHA-256: ec37a19d483a20f4551606f6637b5f570e69eaf68aeb170e55905dd30cf1ae98
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links, including one pointing to a 'coin-master-free-spins' generator, indicating a lure for game-related cheats or currency. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs and a visual download button further supports a malicious intent to redirect users to potentially harmful content. No scripts were extracted, but the primary attack vector appears to be social engineering via deceptive links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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-23-march-2021-game-hack PDF link annotation
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/free-robux-app_GM431946152.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/how-to-get-roblox-premium-for-free_GM431946152.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/roblox-zone-free-robux_GM431946152.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/robux-websites-that-work_GM431946152.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/master-coin-free-link_GM406889139.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/coin-master-get-free-cards_GM406889139.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/hack-coin-master-xyz_GM406889139.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/public-enemy-sun-prairie-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/roblox-gift-card-online-free_GM431946152.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/free-roblox-hack_GM431946152.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/hack-master-coin-pc_GM406889139.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/free-roblox-clothes-2021_GM431946152.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/free-robux-no-human-verification-generator_GM431946152.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/coin-master-apk_GM406889139.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/coin-master-hack-tool-access-online-generator_GM406889139.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_003_off00004a53.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A53 24412 bytes
SHA-256: 413c82450596cca368741dce67ac1aa1b4c53f382ffe1b3f74e5961da4d0d2b9
font_01_sfnt_off0000825c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x825C 18628 bytes
SHA-256: ee10560f037836a310effba06f8e2a452031a98d457cdddaa4693c2fbbf13476

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