Malicious PDF — malware analysis report

Static analysis result for SHA-256 09824506c9ac03c2…

MALICIOUS

PDF

43.7 KB Created: 2021-05-12 07:08:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: cdf2a1d4c25ba952acfebd17cd58d794 SHA-1: 4b3a121783145a7da4a6d347756e3d8735d1c5a3 SHA-256: 09824506c9ac03c2b7c8048ca26db1715f81d972ffa3ca4a108518dc74a40296
200 Risk Score

Malware Insights

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

The PDF contains multiple links to known malicious redirectors, disguised as game hacks and free spin generators. The 'SE_CLICKFIX' heuristic indicates the document likely instructs users to execute commands or open links directly, bypassing typical macro security. The primary malicious URL identified is https://netcdn.xyz/app/479516143/toolbox-for-minecraft-pe-game-hack, which is likely used to distribute further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 5

  • 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.
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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.xyz/app/479516143/toolbox-for-minecraft-pe-game-hack In PDF document text
    • https://www.sonestad.se/library/repository/i-cant-get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coinmasterdailyfreespins-com_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/roblox-weird_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-hack-unlimited-spins-game-download_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-online_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/how-do-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-robux-on-phone_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-ios-hack_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-cheat-to-get-free-spins_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/when-was-minecraft-free_GM479516143.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-robux-exe_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-levels_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-hack-2021-without-verification_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/get-free-robux-now_GM431946152.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_003_off00004e7d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E7D 25560 bytes
SHA-256: 311a9be17627e805fe80777185c195f6d9d5b1bbeb0ba181e308139470fd01cf
font_01_sfnt_off000088b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88B3 18308 bytes
SHA-256: cad0c1d0267ccf17e6d6e466e5a8f19958f4fbf249f5d0def9b4b0a3839f8161

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