Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1e7cf4f18234c2a…

MALICIOUS

PDF

34.1 KB Created: 2021-07-04 21:03:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 0648f36ebe86fcbef39268ac2c96242e SHA-1: c86b811253661621864ab4e7a4451821361ec9c0 SHA-256: d1e7cf4f18234c2a552d93138d990cd378a9a8d24bfe975a3034e10095662f54
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains links that redirect to known malicious infrastructure, specifically promoting 'free generator / game hack' lures. The embedded URL http://netcdn.tw/app/431946152/robux-2021-game-hack is identified as a malicious redirector. The document's content and heuristics strongly suggest a phishing or scam attempt designed to lead users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/431946152/robux-2021-game-hack In PDF document text
    • https://creationegyptco.com/userfiles/files/free-robux-no-human-verification-and-no-survey-2021_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-minecraft-skins-ps4_GM479516143.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/coin-master-tool-hack_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/roblox-jailbreak-checked-cash-money-hack_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/como-hackear-el-juego-coin-master_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-robux-500-000_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/coin-master-free-spins-link-download-hack_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/cheat-engine-for-roblox-mac_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-followers-on-tiktok_GM835599320.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/minecraft-sign-up-free_GM479516143.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/coin-master-hacks-for-iphone_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/master-hack-coin_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-roblox-com_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/hack-avatar_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-robux-websites-that-work_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/how-to-get-free-skins-in-minecraft_GM479516143.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/murder-mystry-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/how-is-tiktok-free_GM835599320.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/how-to-get-free-pets-in-adopt-me-roblox_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
font_00_sfnt_off00002efa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EFA 22196 bytes
SHA-256: 655dbdadcd1e3ce31756037219e4a8d8188dd6b8178a0f0a5d198fa011b08703
font_01_sfnt_off0000602a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x602A 18956 bytes
SHA-256: 03f490474d7ca969cd9c035121b9b885a49cfdd7fa0568d5688fc6c6f9ec8423

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