Malicious PDF — malware analysis report

Static analysis result for SHA-256 5caf358cb6de7226…

MALICIOUS

PDF

44.2 KB Created: 2021-06-03 07:04:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: e4d353fde836bd4e23e242acaf6b27bc SHA-1: eb5cceb99687378002a88b31d5527162f421f595 SHA-256: 5caf358cb6de722686c13d8066e3eca2346f3d6b55bd94f529a9fe7d8dcadccd
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a high-confidence heuristic indicating it links to a game hack lure, specifically pointing to 'wurst-hacked-client-112-2-game-hack'. This suggests the document's primary purpose is to trick users into downloading potentially malicious software or visiting a compromised site. The presence of a password-protected archive lure further supports the malicious intent, aiming to bypass security scans.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 5

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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.online/app/479516143/wurst-hacked-client-112-2-game-hack PDF link annotation
    • http://library.umla.ac.id/repository/pokemon-go-free-evolve-with-trade_GM1094591345.pdfIn PDF document text
    • http://library.umla.ac.id/repository/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/free-op-minecraft-servers_GM479516143.pdfIn PDF document text
    • http://library.umla.ac.id/repository/coin-master-free-spins-link-download-hack_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id//repository/how-to-get-free-cards-sets-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id//repository/roblox-comroblox_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/how-to-make-a-roblox-group-for-free_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id//repository/coin-master-apk-hack-mod-download_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id/repository/how-to-get-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • http://library.umla.ac.id//repository/free-spin-appscoin-master_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id/repository/roblox-redeem-codes-free_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/free-minecraft-account-and-password-2021_GM479516143.pdfIn PDF document text
    • http://library.umla.ac.id/repository/minecraft-dungeons-free-download_GM479516143.pdfIn PDF document text
    • http://library.umla.ac.id/repository/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id//repository/minecraft-bedrock-free-download_GM479516143.pdfIn PDF document text
    • http://library.umla.ac.id//repository/free-robux-codes_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id//repository/pubg-uc-list_GM1330123889.pdfIn PDF document text
    • http://library.umla.ac.id/repository/coin-master-link-today_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id//repository/where-can-i-get-free-spins-for-coin-master_GM406889139.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000051c3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x51C3 24800 bytes
SHA-256: 1443d7c0ea1364a52f53265e32fab2f190d7943562b8965e0ad31b0cfb2b916f
font_01_sfnt_off0000899b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x899B 18556 bytes
SHA-256: 63ca5765d5a633822034c340c76c261e5ec70c1ec6d5f5c3e1c9baf804a68ff4

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