Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d12d33aa2c00d6a…

MALICIOUS

PDF

33.3 KB Created: 2021-07-03 10:51:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: edfa02278ea33afd30e8073f9aacd74d SHA-1: 75ed3cb953cd23651914ea080afec2b3b2b09623 SHA-256: 3d12d33aa2c00d6a48b23396ed436dfb0df5a6a1c52b59933e42ae690574785d
82 Risk Score

Malware Insights

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

This PDF document employs a lure related to game hacks and free in-game currency, as indicated by the document body and multiple high-severity heuristics. The embedded URLs, such as http://netcdn.co/app/431946152/all-free-items-in-roblox-game-hack, likely lead to malicious sites designed to trick users into downloading further malware or providing sensitive information. The ML classifier also strongly flagged this PDF as malicious.

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.co/app/431946152/all-free-items-in-roblox-game-hack PDF link annotation
    • http://aleshashop.net/uploaded_files/userfiles/files/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/go-to-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/how-to-get-hacks-for-roblox-fallen_GM431946152.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/hack-coin-master-apk-mod_GM406889139.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/free-download-roblox-for-android-phone_GM431946152.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/hackspw-robux_GM431946152.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/roblox-admin-hack-android_GM431946152.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/mobihack-roblox-hack_GM431946152.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/how-do-you-get-robux-for-free-no-clickbate_GM431946152.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/free-robux-hack-no-survey-no-download-2021_GM431946152.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/free-minecraft-printables-food-labels_GM479516143.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/how-to-get-free-robux-hack-on-phone_GM431946152.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/roblox-free-robux-no-apps_GM431946152.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/free-spins-coin-master-links-twitter_GM406889139.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/minecraft-rtx-download-free_GM479516143.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/hack-coin-master-online_GM406889139.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/robux-free-promo-codes_GM431946152.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/hackear-coin-master_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
font_00_sfnt_off00002d8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D8D 21568 bytes
SHA-256: 778e5df742af3807a1b3147d7940a60710fd57775574b296e4f6f5dadf25f71b
font_01_sfnt_off00005cf1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CF1 19016 bytes
SHA-256: 1b4d93afac4503d2e36b3bf2bfebb7bade0bbcb15e92d540dbc769c4ae5b55d5

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