Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb54446c9e2e67c2…

MALICIOUS

PDF

33.7 KB Created: 2021-07-05 21:31:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: f73a2daeaee16e34a0ad6cd21655a3a3 SHA-1: d990a0310c8bf33c128b8248dd2d02c408a17214 SHA-256: cb54446c9e2e67c24891ad5b109179e2ab9eb240c3361efa19b412e25e5aa824
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/479516143/how-to-add-mods-to-minecraft-pe-game-hack PDF link annotation
    • https://library.sman1berau.sch.id/repository/coin-master-hack-spins-apk_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-hack-game-download-ios_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/roblox-cr-r-free_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-robux-on-phone_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/hack-avatar_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/robux-no-survey_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/roblox-getting-hacked_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/haktuts-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-to-downgrade-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/robux-link_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/roblox-speed-hack_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-to-win-robux_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/apps-to-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-15-free-spin-link-today_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-robux-uncopylocked_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-free-coins-and-spins-daily-summary_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-coin-master-spins-no-human-verification_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-to-get-minecraft-for-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/static-moonactive-net-free-spins_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
font_00_sfnt_off00002f1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F1C 22360 bytes
SHA-256: 7582a5a3197c0eecfaca6ec549ba94f0ac947e07958a98830d5c059932cf4506
font_01_sfnt_off00006035.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6035 18492 bytes
SHA-256: 187117b6483f84446097ca718fc2b5e867a96ebcb7c0260bf32771663b0f71d3

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