Malicious PDF — malware analysis report

Static analysis result for SHA-256 784837860a7b729b…

MALICIOUS

PDF

44.9 KB Created: 2021-06-03 05:53:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 577bf0607900fb0c6af7f544f30d37dd SHA-1: 60582979584d01b258c940e965ace5e2c0951d3b SHA-256: 784837860a7b729b72a8d74c0c9eb9edaffa2847239b25a440a0b20c99662832
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document employs a common lure, promising game hacks and free in-game currency for 'Coin Master'. It contains multiple embedded URLs that redirect to sites offering such 'hacks', including a primary URL pointing to 'netcdn.online'. The document's structure and content strongly suggest it is designed to trick users into visiting malicious websites, likely for further exploitation or credential harvesting.

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-free-spin-and-coin-links-game-hack PDF link annotation
    • http://pustaka.bbppketindan.info//repository/https-iosgodscom-topic-20214coinmasterhack_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/hack-coin-master-site-rssingcom_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/real-working-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-exploit-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/robux-for-surveys_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/minecraft-free-minecraft_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-hack-apk-2021-ios_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/get-free-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-get-roblox-credit-for-free_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/hack-de-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/pubg-uc-dundle_GM1330123889.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coinmaster-free-spins-link_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-free-spins-and-coins-link-haktuts_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-robux-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/roblox-admin-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/roblox-hack-app_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-spin-coin-master-hacktoman_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/can-u-get-free-robux_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_off0000543b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x543B 24812 bytes
SHA-256: 13fe99d70e7c4104be53d44a724d7fc13dad2d94648f9344b98a31d831ce2357
font_01_sfnt_off00008d04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D04 18228 bytes
SHA-256: ab1c4cdc214a6baf81a15e2f62a40ea9cfbbbf407f0f3dd1c7564e467cf0dae2

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