Malicious PDF — malware analysis report

Static analysis result for SHA-256 06405f6cac7740d5…

MALICIOUS

PDF

35.3 KB Created: 2021-07-04 22:45:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: dc7ee5e28d689e873b7ae2392ec7aa17 SHA-1: e33f3bc255a22b5e664111ff9466745107c03578 SHA-256: 06405f6cac7740d597d53378f50716b9da2d78906e4918459275a254253bacbc
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by an ML classifier. It uses a password-protected-archive lure. 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 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 http://netcdn.tw/app/406889139/legit-coin-master-hack-game-hack PDF link annotation
    • https://library.elkatarie.ac.id/repository/coin-master-fan-hack_GM406889139.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/xbox-roblox-free-items_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/roblox-hat-hack_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/how-to-hack-a-roblox-profile-youtube_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/hack-robux-free-2021_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/roblox-how-to-make-a-shirt-for-free_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/ulimited-robux-hack_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/roblox-studio-free-online_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/robux-generator-free-no-password_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/hacks-tools-para-roblox_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/how-to-hack-roblox-with-its-source_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/freetaco-roblox_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/coin-master-coins-free_GM406889139.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/roblox-hack-how-to-see-peoples-inventory_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/how-do-you-hack-minecraft_GM479516143.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/minecraft-windows-10-edition-unlock-full-game-free_GM479516143.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-roblox-shirt-templates-2021_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/2021-best-roblox-hack_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000324f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x324F 23600 bytes
SHA-256: f51cf0b19172156d33155f3a51e9e6f7111e0459221a0dd905c1006827a40f50
font_01_sfnt_off000067f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67F2 18004 bytes
SHA-256: 92eee47508cc51aff6e3d487e9033971e75a5957dfea389123b9d70a072beebe

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