Malicious PDF — malware analysis report

Static analysis result for SHA-256 0bea8f621a129ad1…

MALICIOUS

PDF

43.2 KB Created: 2021-06-04 01:59:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 8d345511c98a3053dcb4bcdeb99e49ff SHA-1: 10acc931675bb02192ae5004fab4b5379a924dd9 SHA-256: 0bea8f621a129ad12624d5cd997050c60bf2d22d6119ae78b89274434d0bb687
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 0.9865

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.online/app/406889139/coin-master-heaven-links-free-spins-game-hack PDF link annotation
    • https://library.uigm.ac.id/repository/how-to-get-2021-robux-for-free_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/how-to-get-free-spins-on-coin-master-2021-links_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/coin-master-free-cards-2021_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/robux-now_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/roblox-hack-pack-download_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/minecraft-pe-free-ios_GM479516143.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/androeed-ru-minecraft_GM479516143.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/minecraft-apk-download-v1-144-2-free_GM479516143.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/coin-master-hack-app-download-free_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-games-like-minecraft_GM479516143.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/coin-master-free-spins-and-chips_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/how-to-get-minecraft-for-free-on-ps4_GM479516143.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/wurst-18-9_GM479516143.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/is-roblox-free-on-xbox_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-robux-accounts-2021_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_004_off00004e76.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E76 24588 bytes
SHA-256: 0d42685074419b8faa305ca480fd2d7d5b7c3c5661fe35cb74486ab119b89427
font_01_sfnt_off00008672.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8672 18168 bytes
SHA-256: 027d16a1c60dbd0eb1df4048bc3da2018b11e953b841f7f45fc354c272db0dc4

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