Malicious PDF — malware analysis report

Static analysis result for SHA-256 84d66d456d3a6505…

MALICIOUS

PDF

44.1 KB Created: 2021-06-03 12:48:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: aedefd0787a7355f00511acf8bf01b33 SHA-1: f2c0e6dd36b225182585ec93a57d1ba643812877 SHA-256: 84d66d456d3a6505857345df9876f00353e843278c7bc5963eb68381454409de
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains heuristics indicating it is a game hack lure, linking to a suspicious URL. The document body, though partially garbled, contains text related to 'Coin Master Hack Tool' and the malicious URL. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to trick the user into downloading a malicious payload, likely via the linked URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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-hack-tool-pc-download-game-hack PDF link annotation
    • http://library.apsidoarjo.ac.id/repository/tiktok-free-liker-apk-download_GM835599320.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/how-to-change-your-username-on-roblox-for-free-2021_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/roblox-rewards-site_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/real-robux-generator_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/minecraft-114-download_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/coin-master-unlimited-spins_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/hackear-coin-master-android_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/coin-master-deals_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-download-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/hack-coin-master-online_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/moon-active-games_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-promo-codes-roblox_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/twitter-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/coin-master-hack-com_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-800-robux_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/best-minecraft-hacked-client-2021_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/how-to-earn-free-pokeballs-in-pokemon-go_GM1094591345.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/where-to-buy-pubg-uc-cheap_GM1330123889.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/pubg-uc-key_GM1330123889.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_off000051f9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x51F9 24200 bytes
SHA-256: 93a77d888b43fadda9fcae6e03a77ea479952ad6576965b9dbb6c9c109f5a68a
font_01_sfnt_off0000895e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x895E 18448 bytes
SHA-256: f69ccf4ac9a4c7b2b45b9f8ac93aa461b645c03c3d93edb8b39843cc7a5e0583

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