Malicious PDF — malware analysis report

Static analysis result for SHA-256 60f1e08e1b8aea43…

MALICIOUS

PDF

34.3 KB Created: 2021-07-07 12:29:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 4e18d358722cfa3ea55c7cc2f2acaf5e SHA-1: 342d6e3437711168a3d17ec4a5214811cd664739 SHA-256: 60f1e08e1b8aea4366fca50954df559db1541be99f069436e9e2cc2339d49c81
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/minecraft-hack-download-game-hack PDF link annotation
    • https://digilib.stimlog.ac.id/repository/free-robux-and-tix-generator-2021-no-download_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/is-java-minecraft-free_GM479516143.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-hack-robux-cheat-engine-61_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/coin-master-free-spins-generator-no-human-verification_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/lazyblocks-com-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/minecraft-pocket-apk_GM479516143.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/generator-free-account-old-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/minecraft-svg-free_GM479516143.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/cheat-engine-64-speed-hack-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/all-free-roblox-2021-hats_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/coin-master-cheats-free-spins_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/rewards-roblox-com_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/coin-master-time-hack-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/hacks-roblox-august-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/tiktok-likes-free_GM835599320.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/www-coinmaster_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/elemental-battlegrouds-roblox-hack_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/robux-hack-install_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/link-for-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-robux-no-survey-no-download-2021-no-human-verification_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_off00002eef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EEF 23024 bytes
SHA-256: 73c9da073ba7eaded26b6f02a813cb47acfdb23229348a4a63795cc5bba9b8ed
font_01_sfnt_off000061f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61F9 18748 bytes
SHA-256: 7d976cf09cf6847225c0071798e8d9f98538d253ea26ac6bed308074c1f82c66

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