Malicious PDF — malware analysis report

Static analysis result for SHA-256 441ed836ba1db044…

MALICIOUS

PDF

45.7 KB Created: 2021-05-11 05:37:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: f9bd3c5ca341ebc89ab8c63a91528fd6 SHA-1: 4987a9017d6ba7682ddb37cd72df9cbdad21a0b0 SHA-256: 441ed836ba1db044d6851dc4bb3f2b1f19fdf1b9cdcba1ed323526e8dff44d35
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 0.9507

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-daily-bonus-game-hack PDF link annotation
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/free-robux-easy_GM431946152.pdfIn PDF document text
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/coin-master-2021-free-spins_GM406889139.pdfIn PDF document text
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/coin-master-hack-2021-free_GM406889139.pdfIn PDF document text
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/free-minecraft-hosting-24-7_GM479516143.pdfIn PDF document text
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/spin-free-coin-master_GM406889139.pdfIn PDF document text
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/www-robux-com_GM431946152.pdfIn PDF document text
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdfIn PDF document text
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/coin-master-mod-apk-unlimited-spin-download-free-full-version_GM406889139.pdfIn PDF document text
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/minecraft-pe-hacks_GM479516143.pdfIn PDF document text
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/free-robux-link_GM431946152.pdfIn PDF document text
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/coin-master-hack-online-download_GM406889139.pdfIn PDF document text
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/free-robux-generator_GM431946152.pdfIn PDF document text
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/minecraft-free-download-linux_GM479516143.pdfIn PDF document text
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/coin-master-ios-gods-hack_GM406889139.pdfIn PDF document text
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/coin-master-hack-ios-no-verification_GM406889139.pdfIn PDF document text
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/free-coins-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/where-can-i-get-free-spins-for-coin-master_GM406889139.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_off00004e05.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E05 24088 bytes
SHA-256: 73459acef6a5b1944aa1b10fa69967cdcb51d532727d4a1f5cc28556ed7e4f82
font_01_sfnt_off000084ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84EA 3124 bytes
SHA-256: 9967c6221325a4ff3f7c4336922605f990450164c2eee2df708cc81823c6ec98
font_02_sfnt_off00008fc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FC9 18324 bytes
SHA-256: 49f584c02d5d185fccddb39f45d489986bed95ac7bc2f0da6bb6a0e76047048d

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