Malicious PDF — malware analysis report

Static analysis result for SHA-256 abfbb8851a25035c…

MALICIOUS

PDF

34.4 KB Created: 2021-06-29 21:24:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 09d14c9895c453e635cbeb97dff43ef3 SHA-1: 14a969d97db5ab5086ca47533eed9202e72da76d SHA-256: abfbb8851a25035c17997e44cbc868972229e6c0c68353cfd1ea0adc566e93f5
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.co/app/431946152/roblox-how-to-get-free-skins-game-hack PDF link annotation
    • https://opac.umrah.ac.id/repository/roblox-hacking-website_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/ima-hacker-roblox-remix-id_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-robux-2021-no-survey-no-download_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-robux_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/assassin-roblox-hack-aimbot_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/bleus-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/robux-hack-no-verification-no-download_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-tiktok-like_GM835599320.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/megapolis-hack-roblox_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/hacks-for-minecraft-windows-10_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-robux-app-2021_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-hack-somebodys-account-on-roblox_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/generator-hack-roblox-online-pc_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-get-free-plus-on-roblox-meepcity-2021_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/dolphin-hacks-roblox_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-get-gold-cards-on-coin-master-hack_GM406889139.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_off00003067.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3067 21892 bytes
SHA-256: de3ee9c37df5fc9065d60f43ebd594d55d13bd61d19c203b5cea335afa648944
font_01_sfnt_off000060e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60E8 19208 bytes
SHA-256: 3d880a9295ba0d9d8e8e61a6ad1abc375d6daf226e40ffb6d419028b8f4eff1e

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