Malicious PDF — malware analysis report

Static analysis result for SHA-256 632e206d9633e716…

MALICIOUS

PDF

43.2 KB Created: 2021-05-16 00:35:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 7e94871b195eac4dcab3c0b139603e60 SHA-1: 1da9c35dd76044e9ca73ee928d5e77171582589f SHA-256: 632e206d9633e716a352c7d4fc670a0b76ddd19f140a4d16613e7bdea0591a7d
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

This PDF document was flagged as malicious by an ML classifier. It uses a ClickFix paste-and-run lure. 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 0.9969

Heuristics 5

  • 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.
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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.xyz/app/479516143/how-to-hack-someones-minecraft-account-game-hack PDF link annotation
    • https://opac.umrah.ac.id/repository/roblox-survey-for-robux_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-minecraft-survival-server_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-coin-master-spins-for-today_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-free-online-game_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/rewards-roblox_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-free-spin-link-app_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-robux_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-cheat-to-get-free-spins_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-rewards-robux_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/minecraft-18-9-hacked-client_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/aternos-free-minecraft-server_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-make-your-own-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/114-hacks_GM479516143.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
stream_003_off00004b9a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B9A 25780 bytes
SHA-256: a914dcc534f13098b69a22ca5938e8f982296851a7f3b64d3c2a60816d710585
font_01_sfnt_off0000864b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x864B 18444 bytes
SHA-256: 747c8dea613db23d983de6ff9ef757178679d17f00ac663d4d23b9711c9580c4

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