Malicious PDF — malware analysis report

Static analysis result for SHA-256 46e1dc29af7708ac…

MALICIOUS

PDF

34.6 KB Created: 2021-07-05 15:14:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: f4babe4e3823c46d3d23702c0e586bc7 SHA-1: eaa84f18ffd0b55aa847f42ae3c5c3b35343d87f SHA-256: 46e1dc29af7708ac80771ceb98e44bc7feaa5640109de2d73f3f8609fab7be5c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a prominent link to a 'game hack' generator, which is a common lure for malicious downloads or phishing. The ML classifier strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect the user to a potentially harmful site.

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-ultra-attack-hack-game-hack PDF link annotation
    • https://privatearrangements.co.nz/public/files/toolbox-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/hacks-to-get-robux-in-tower-of-hell_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/free-spins-october-28-2021-coin-master_GM406889139.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/how-do-you-get-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/minecraft-bedrock-edition-download-pc-free_GM479516143.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/www-robux-com_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/mod-menu-roblox-no-crashing-free_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/coin-master-card-hack_GM406889139.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/pokemon-go-free-pokecoins-no-human-verification_GM1094591345.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/coin-master-free-spin-link-app_GM406889139.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/how-to-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/roblox-hacked-version_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/coin-master-hack-here_GM406889139.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/freerobux-co_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/free-robux-generator_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/spins-for-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
stream_002_off000030e7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x30E7 23028 bytes
SHA-256: 83414d1de7ac7a619551cfb7b9ff6dc7cf1199e85c212645228d1a311a3a32dc
font_01_sfnt_off000064b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64B2 18264 bytes
SHA-256: f943036127e3db10ee7ebc9a2042fc32afae08fea931800890a55cc6ab9fb5c5

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