Malicious PDF — malware analysis report

Static analysis result for SHA-256 21c7c5573dac1424…

MALICIOUS

PDF

45.9 KB Created: 2021-06-10 22:28:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: d480b23ba12c8fec42e12cc22f7c9f61 SHA-1: d04fe3ec051cc5bdeca1a8fc07731f6ae534c1d7 SHA-256: 21c7c5573dac142422012a8496a8c333446688b71b120e9d858a4fce25f03836
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 0.9864

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.tw/app/431946152/roblox-royale-high-school-script-get-free-dimonds-game-hack PDF link annotation
    • http://pustakafpsi.uin-suska.ac.id/repository/increible-hack-robux-pastebincom_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/hack-roblox-robux-jailbreak_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/links-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/coin-master-fan-page_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/free-spin-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/roblox-arsenal-hacks-download_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/roblox-gift-card-online-free_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/minecraft-redeem-code-free_GM479516143.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/hackear-coin-master_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/minecraft-apk-download-free-11-055_GM479516143.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/can-i-hack-uc-in-pubg_GM1330123889.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/coinmaster-spin-ml-free_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/how-to-get-free-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/free-sprite-shir-roblox_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/robux-generator_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/minecraft-iphone-free_GM479516143.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/show-me-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/how-to-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/free-robux-place_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/roblox-free-robux-website_GM431946152.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004eda.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4EDA 26600 bytes
SHA-256: 916c7c19104201794f6b9353185f4a29ac66bbd3d1f26c81b27ed76c594e8bbd
font_01_sfnt_off00008c5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C5C 19812 bytes
SHA-256: e99493560ffa1abf3b6fe1e2b05baf40e92904aa396c6555ebe7e145c2015e6c

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