Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f371f634c7a0a03…

MALICIOUS

PDF

35.7 KB Created: 2021-07-03 18:54:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: c5c26f9ab2b31a9bb4fa0e03fb0bd105 SHA-1: 16a6edf12be5b776a49a0ed6628dbbca022f2f4c SHA-256: 8f371f634c7a0a03a988df83750d44110babe74629d7afb7dda1d6173701b3b2
74 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • 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.
  • 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/406889139/free-spins-generated-from-coin-master-game-hack PDF link annotation
    • http://perpus.stikesphi.ac.id/repository/roblox-twisted-murderer-hack-2021_GM431946152.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/admin-hack-roblox-ban_GM431946152.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/coin-master-free-spins-and-coins-hack_GM406889139.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/free-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/minecraft-com-free_GM479516143.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/free-roblox-clothes-boy_GM431946152.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/coin-master-facebook-free-spins_GM406889139.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/btools-hack-roblox-2021-not-rar_GM431946152.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/descargar-hack-para-roblox-pc_GM431946152.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/wurst-client_GM479516143.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/how-to-hack-roblox-accounts-2021-unpatched_GM431946152.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/how-to-hack-in-roblox-fe2_GM431946152.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/buy-roblox-shirts-free_GM431946152.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/8bp-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/best-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/minecraft-hack-app_GM479516143.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/daily-free-spins-coin-master-heaven_GM406889139.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/7-year-old-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/how-to-hack-into-somebodys-roblox-account_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 6

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_off000036ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36AE 22228 bytes
SHA-256: 7bbc108441f1057b448ae336023b632ce625ad1c4425b9746bcf7bcd99231aee
font_01_sfnt_off000067da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67DA 18608 bytes
SHA-256: f3b8872e4898f4f62f1c2381ef3c416df0d2c6af9c073f51721df25e5e0a3b28

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