Malicious PDF — malware analysis report

Static analysis result for SHA-256 2121ce6be3a5d639…

MALICIOUS

PDF

33.7 KB Created: 2021-07-05 11:06:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 3807634f82fde0035a32fb1471119c44 SHA-1: 1339672b938a43c621d11529aae5c19d32d83cda SHA-256: 2121ce6be3a5d639bb5dc699bc9bba9023aa661b62b8cfe6d3dd792dd9b9f924
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/431946152/how-to-get-free-robux-meanie-man-game-hack PDF link annotation
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-robux-hack-2021-may_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/comment-avoir-un-mode-de-cheat-sur-jailbreak-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/minecraft-free-download_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-hack-android-root_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/mcpe-download_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-jail-break-hacker-vs-noob-vs-pro_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-robux-youtube-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-base-terrain-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-adopt-and-raise-a-baby-hack_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hack-coin-master-apk-ios_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hack-roblox-dragon-ball-online_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/como-generar-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-hacks-jail-break_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-lumber-tycoon-2-how-to-get-free-land_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/rbxoffers-free-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/mod-hackeadas-para-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/elemental-wars-hack-roblox-site-v3rmillionnet_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-card-codes-roblox-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-vocabulary-roblox_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
font_00_sfnt_off00002e82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E82 21856 bytes
SHA-256: 6f2fd1cd37aaef640d3e0c0229294ac5b2c60bab68876e8f04de420f4fde2524
font_01_sfnt_off00005e6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E6E 19112 bytes
SHA-256: 0e76d3e66053633ec5d851e6ada3809c902800db4fadd5b73b6e3028ee4d8334

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