Malicious PDF — malware analysis report

Static analysis result for SHA-256 567e2b5cd1416808…

MALICIOUS

PDF

33.0 KB Created: 2021-06-20 06:09:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 177d74a2c4798a97d7986a01848761e1 SHA-1: 42f9a0c2acaf7173357e094f7d2ff671ce7f294b SHA-256: 567e2b5cd1416808e4504e239f0fe3b8f84294901e491bdec363833ed9b32da0
82 Risk Score

Malware Insights

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

This PDF document contains multiple embedded URLs that lure users with promises of free game currency and hacks. The primary URL, http://netcdn.co/app/431946152/roblox-free-robux-2021-game-hack, is directly linked to a 'free generator / game hack' lure. The document's structure and content strongly suggest it is designed to trick users into visiting malicious sites, likely for credential harvesting or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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/roblox-free-robux-2021-game-hack PDF link annotation
    • http://www.woundcare4heroes.org.uk/uploads/files/files/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • http://www.woundcare4heroes.org.uk/uploads/files/files/free-coins-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://www.woundcare4heroes.org.uk/uploads/files/files/how-to-get-free-spins-and-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.woundcare4heroes.org.uk/uploads/files/files/2021-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.woundcare4heroes.org.uk/uploads/files/files/free-robux-codes-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://www.woundcare4heroes.org.uk/uploads/files/files/is-minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • http://www.woundcare4heroes.org.uk/uploads/files/files/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://www.woundcare4heroes.org.uk/uploads/files/files/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.woundcare4heroes.org.uk/uploads/files/files/coin-master-facebook-page_GM406889139.pdfIn PDF document text
    • http://www.woundcare4heroes.org.uk/uploads/files/files/pokemon-go-free-event-box-april-2021_GM1094591345.pdfIn PDF document text
    • http://www.woundcare4heroes.org.uk/uploads/files/files/best-site-for-free-coin-master_GM406889139.pdfIn PDF document text
    • http://www.woundcare4heroes.org.uk/uploads/files/files/roblox-exploit-hack-free-download_GM431946152.pdfIn PDF document text
    • http://www.woundcare4heroes.org.uk/uploads/files/files/how-to-get-minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
    • http://www.woundcare4heroes.org.uk/uploads/files/files/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.woundcare4heroes.org.uk/uploads/files/files/coin-master-hack-spin-generator-tool_GM406889139.pdfIn PDF document text
    • http://www.woundcare4heroes.org.uk/uploads/files/files/near-tiktok-free-likes_GM835599320.pdfIn PDF document text
    • http://www.woundcare4heroes.org.uk/uploads/files/files/roblox-piano-hack-2021_GM431946152.pdfIn PDF document text
    • http://www.woundcare4heroes.org.uk/uploads/files/files/hack-des-robux_GM431946152.pdfIn PDF document text
    • http://www.woundcare4heroes.org.uk/uploads/files/files/free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://www.woundcare4heroes.org.uk/uploads/files/files/coin-master-hack-org_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_off00002a66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A66 22092 bytes
SHA-256: bc8b7005390d0e86303cbb88509843480fa441718af44e2ca780b6fb8ed2f3a4
font_01_sfnt_off00005b88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B88 19192 bytes
SHA-256: 81aedb827eddc4aa3e52835133cb1ccd364d29e7d0e97db71b267390cee8f151

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