Malicious PDF — malware analysis report

Static analysis result for SHA-256 9565b7527427ec69…

MALICIOUS

PDF

33.7 KB Created: 2021-07-09 06:25:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 4c96d9e926bfa99263ed7b91ea2a888b SHA-1: d021ddbe3aa83e6e12b3cbe7cb27350a9b4f189c SHA-256: 9565b7527427ec692bc426655c2da6a138cf31751929877f0c40e96d9acc92c1
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and embedded text related to game hacks and cheats, specifically for Coin Master and Roblox. The primary lure, http://netcdn.tw/app/406889139/coin-master-spin-hack-apk-game-hack, strongly suggests a social engineering tactic to trick users into downloading potentially malicious software or visiting a phishing site. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious lure designed to exploit user interest in game exploits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/406889139/coin-master-spin-hack-apk-game-hack PDF link annotation
    • https://www.tdbaska.hr/files/robux-hack-2021-working_GM431946152.pdfIn PDF document text
    • http://www.tdbaska.hr/files/roblox-guthaben-hacken_GM431946152.pdfIn PDF document text
    • https://www.tdbaska.hr/files/coin-master-hack-tool-v1-9_GM406889139.pdfIn PDF document text
    • http://www.tdbaska.hr/files/free-coin-and-spin-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.tdbaska.hr/files/roblox-darkness-2-cheats_GM431946152.pdfIn PDF document text
    • https://www.tdbaska.hr/files/how-to-hack-robux-with-inspect_GM431946152.pdfIn PDF document text
    • http://www.tdbaska.hr/files/i-want-free-robux_GM431946152.pdfIn PDF document text
    • https://www.tdbaska.hr/files/free-to-play-minecraft-servers_GM479516143.pdfIn PDF document text
    • http://www.tdbaska.hr/files/coin-master-hack-tool-exe_GM406889139.pdfIn PDF document text
    • http://www.tdbaska.hr/files/roblox-dont-sign-up-for-free_GM431946152.pdfIn PDF document text
    • https://www.tdbaska.hr/files/robux-cash-cheat_GM431946152.pdfIn PDF document text
    • https://www.tdbaska.hr/files/coin-master-free-spins-without-human-verification_GM406889139.pdfIn PDF document text
    • http://www.tdbaska.hr/files/free-robux-generator-august-2021_GM431946152.pdfIn PDF document text
    • http://www.tdbaska.hr/files/hack-coin-master-app_GM406889139.pdfIn PDF document text
    • https://www.tdbaska.hr/files/coin-master-free-bonus_GM406889139.pdfIn PDF document text
    • http://www.tdbaska.hr/files/roblox-exploit-scripts_GM431946152.pdfIn PDF document text
    • https://www.tdbaska.hr/files/toolbox-for-minecraft-pe-ios_GM479516143.pdfIn PDF document text
    • https://www.tdbaska.hr/files/how-to-hack-roblox-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.tdbaska.hr/files/how-to-hack-someones-account-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.tdbaska.hr/files/hack-coin-master-android_GM406889139.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
font_00_sfnt_off00002ef6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EF6 22404 bytes
SHA-256: 22f38c9db8f93a718676c6645c192291f9623d421deb3ab8615e4146fa504600
font_01_sfnt_off00006104.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6104 18180 bytes
SHA-256: eeaf9fe1c7e6789caefc07d53c000bb69e844de2835645c48fad05e1619410a4

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