Malicious PDF — malware analysis report

Static analysis result for SHA-256 076c58a9aea930ed…

MALICIOUS

PDF

46.5 KB Created: 2021-05-13 21:18:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: c11ec970b0d33e6038a223cde9a90498 SHA-1: 0e60187920840265a2a51d368d9b09e595eeb07e SHA-256: 076c58a9aea930ed9c45822b1b5fa9fd7ba109802baaa9ae4f583e91a8dfc3de
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a lure for game hacks, specifically targeting 'Coin Master' and 'Roblox' related cheats. The primary link, https://netcdn.xyz/app/406889139/coin-master-free-spins-youthnow-game-hack, is identified as a high-risk redirector. While no scripts were explicitly extracted, the presence of embedded URLs and the 'PDF_GAME_HACK_REDIRECT_LURE' heuristic strongly suggest a social engineering tactic to drive users to potentially malicious sites for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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 https://netcdn.xyz/app/406889139/coin-master-free-spins-youthnow-game-hack PDF link annotation
    • http://wwic.wales/uploads/files/files/hack-version-of-coin-master_GM406889139.pdfIn PDF document text
    • http://wwic.wales/uploads/files/files/coin-master-free-stuff_GM406889139.pdfIn PDF document text
    • http://wwic.wales/uploads/files/files/chisel-and-bits-mod-pe_GM479516143.pdfIn PDF document text
    • http://wwic.wales/uploads/files/files/coin-master-spin-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://wwic.wales/uploads/files/files/coin-master-hack-2021-free_GM406889139.pdfIn PDF document text
    • http://wwic.wales/uploads/files/files/free-links-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://wwic.wales/uploads/files/files/e-free-roblox_GM431946152.pdfIn PDF document text
    • http://wwic.wales/uploads/files/files/how-to-earn-robux-fast_GM431946152.pdfIn PDF document text
    • http://wwic.wales/uploads/files/files/roblox-free-rubox_GM431946152.pdfIn PDF document text
    • http://wwic.wales/uploads/files/files/roblox-inappropriate_GM431946152.pdfIn PDF document text
    • http://wwic.wales/uploads/files/files/how-can-i-get-free-coinsn-coin-master_GM406889139.pdfIn PDF document text
    • http://wwic.wales/uploads/files/files/free-spin-coin-master-instagram_GM406889139.pdfIn PDF document text
    • http://wwic.wales/uploads/files/files/how-to-get-free-coins-in-mcpe-master_GM406889139.pdfIn PDF document text
    • http://wwic.wales/uploads/files/files/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://wwic.wales/uploads/files/files/coin-master-hacks-free-spins_GM406889139.pdfIn PDF document text
    • http://wwic.wales/uploads/files/files/coin-master-free-spins-for-iphone_GM406889139.pdfIn PDF document text
    • http://wwic.wales/uploads/files/files/roblox-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://wwic.wales/uploads/files/files/coin-master_GM406889139.pdfIn PDF document text
    • http://wwic.wales/uploads/files/files/oprewards-robux_GM431946152.pdfIn PDF document text
    • http://wwic.wales/uploads/files/files/a-lot-of-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000047e4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47E4 29304 bytes
SHA-256: 1774165e0bd566c2c2903c6785ac87a0bba6055eb5d059159443542ae23f1761
font_01_sfnt_off0000892c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x892C 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off000092dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92DD 18516 bytes
SHA-256: 2d9e93df29aa51ca1a7d67cf2404b131feb62ab03f4d0f4d21f6bd2b7fc99d70

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