Malicious PDF — malware analysis report

Static analysis result for SHA-256 23ce6fc4741ea6fe…

MALICIOUS

PDF

34.4 KB Created: 2021-07-05 19:11:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: aa0c6105879b0f23bbab924c18a78bff SHA-1: abd212976f42379d4d86f25a1b3ed40e2d6d9b32 SHA-256: 23ce6fc4741ea6fe54ba32eb6f7ece40e182e6723c416200336583df816b9d5d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple embedded URLs that redirect to sites offering game hacks and cheats, such as for Coin Master and Roblox. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates a social engineering tactic to trick users into downloading or visiting malicious sites. The ML classifier also flagged this PDF as malicious with high confidence.

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-hack-version-download-2021-ios-game-hack PDF link annotation
    • http://stitqi.ac.id/website//repository/coin-master-tips_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/coin-master-hack-without-verification-code-2021_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/free-spins-for-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/how-to-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/robux-websites-2021_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/apps-to-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/minecraft-ps4-code-free_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-hack-2021-android-apk_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/free-robux-gen_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/free-realistic-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-hack-unlimited-spins-apk-download_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/coin-master-free-generator_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/roblox-com-hack_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/coin-master-free-coins-and-spins-daily-summary_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/free-robux-generator-without-human-verification_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
font_00_sfnt_off00003024.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3024 22072 bytes
SHA-256: 297e9ead6fe21317cdce2de6f2cf2d093e3cc268278927e7bb48a15fac14dec9
font_01_sfnt_off000060d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60D3 19120 bytes
SHA-256: f174be463889e709509fe3c881f9d5123b751e4958c60e729be6e06ac157b018

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