Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ccad665efd9723d…

MALICIOUS

PDF

44.6 KB Created: 2021-06-11 12:14:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-20
MD5: ea3a9662daa8cdafc302d0444452cd2d SHA-1: 06c693d1797f3be282694931057a1204fc53c6e9 SHA-256: 4ccad665efd9723d4e55241116d60bd360ca858657919e0d3ed0b048ae1653b2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, disguised as game hacks and generators. The document body and embedded URLs suggest a lure for users seeking cheats or free items for games like Roblox and Minecraft. The primary malicious link directs to a suspicious domain designed to host further malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.tw/app/431946152/arcane-legacy-roblox-hack-game-hack In PDF document text
    • http://library.umuslim.ac.id/repository/minecraft-education-edition-free_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/roblox-cheat-for-rocitzens_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/minecraft-mod-updater_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/hacker-vs-noob-vs-pro-roblox_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/coin-master-daily-free-spins-blog_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/earn-your-free-rank-roblox_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/coin-master-hack-version-2021-download_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/how-to-hack-coin-master-spin_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/free-minecraft-account-list_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/coin-master-hacks-for-free-spins_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/coin-master-free-spins-hacktman_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/free-robux-codes-2021-real_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/roblox-script-hack_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/spare-reborn-hack-roblox_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/free-roblox-executor_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/roblox-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/how-to-get-5-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/coin-master-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005022.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5022 25956 bytes
SHA-256: fa0afe5c833b598470a447fa0d53853c2d9c49d0f8884ad0a903232cbce16ada
font_01_sfnt_off00008a72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A72 18652 bytes
SHA-256: 403c942121f947d8bef4b834cb3a26d93cfd94b7e0c4a8a270c00c383be363b8

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