Malicious PDF — malware analysis report

Static analysis result for SHA-256 72e5c0b5ad593aa8…

MALICIOUS

PDF

43.4 KB Created: 2021-06-04 01:05:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: a098cd08f4b9f13fd52830326ffc4727 SHA-1: d6e85d4811abc7dd53e1c653d61f6a4b5fe22e39 SHA-256: 72e5c0b5ad593aa80cdb8ba3a4305d90f5e96d57dc0fb06537475e33c6c48e1b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for free game currency and hacks, directing users to a malicious URL. The ML classifier strongly indicated maliciousness, and the embedded URLs are consistent with phishing and scamming attempts. No scripts were extracted, but the document's structure and embedded links suggest it is designed to redirect users to potentially harmful websites.

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/431946152/free-robux-hacker-us-game-hack PDF link annotation
    • https://perpustakaan.stifar.ac.id/repository/minecraft-java-free-trial_GM479516143.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/how-to-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/links-for-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/roblox-booga-booga-hack_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/rblx-city-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/freespinandcoin-blogspot_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/free-robux-gift-card-generator_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/roblox-controversy_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/codes-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/roblox-hacks-com_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/coin-master-spin-link-today_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/how-to-get-roblox-premium-for-free_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/e-free-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/free-robux-clothes_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/robuxglobalcom_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/coin-master-free-coins-and-spins-app_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004da0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DA0 24612 bytes
SHA-256: ddc1e17bc73b237d39bba0b8e274b390ca7ee520ecaa329eff0888f90625d3e6
font_01_sfnt_off0000862a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x862A 18600 bytes
SHA-256: be32b0f906764c1f2317decc7ac5a24a5975e1ace61028a3a9703984df87bb8b

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