Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d1e22c4ea770d38…

MALICIOUS

PDF

35.1 KB Created: 2021-07-07 11:02:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 0fa2cbb6c6e1cd7eb79a200a7262d779 SHA-1: ab63dc95dbbeecd11a325e7ab112e04f9c5ff2c8 SHA-256: 2d1e22c4ea770d38b97a450d108ee88aeb362122e2024a068a655cc4448431e2
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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-official-fan-page-game-hack PDF link annotation
    • http://educhina.mn/editor/files/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/get-free-animation-roblox_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/pokemon-go-free-trade-evolve_GM1094591345.pdfIn PDF document text
    • http://educhina.mn/editor/files/roblox-bloxburg-hack_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/ssuper-speed-hack-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/coins-master-hacks_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/husky-roblox-free-robux-link_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/ich-bin-am-hacken-roblox-name-danny-jesden_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/snyapse-roblox-for-free-no-virus-still-working-2021_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/free-games-to-download-like-roblox_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/how-to-get-r-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/minecraft-bedrock-free_GM479516143.pdfIn PDF document text
    • http://educhina.mn/editor/files/coin-master-100-free-spins-link_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/roblox-generator_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/best-site-for-free-coin-master_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/coin-master-free-pet-food-links_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/how-to-get-unlimited-robux_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_off00003393.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3393 22924 bytes
SHA-256: 0b73c35bb87b371fc3be395d3e3a3d8862604d71674f560d12b469427db46bdf
font_01_sfnt_off000066f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66F0 18224 bytes
SHA-256: 7172d272c2564e6620d13bdfead72d9093949332c318f086f8b2c295f81971a9

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