Malicious PDF — malware analysis report

Static analysis result for SHA-256 5da8c1361098f03f…

MALICIOUS

PDF

45.4 KB Created: 2021-06-03 09:33:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 36b0b3908a6361c5d21583fe564515ab SHA-1: 698383e64afeed6976dbbe02ad3bc01149e0880e SHA-256: 5da8c1361098f03fcf6a261b80cf1b4cf6b4b5a936e5400c47cc86dd59f06b39
122 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by an ML classifier. It uses an MFA/2FA-themed 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 0.9864

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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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-executor-roblox-game-hack PDF link annotation
    • https://perpustakaan.stami.ac.id//repository/minecraft-java-free_GM479516143.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/roblox-free-items-glitch_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/coin-master-free-daily-rewards_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/hack-my-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/roblox-g_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/coin-master-hack-programers_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/daily-coin-master-free_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/como-hackear-el-juego-coin-master-en-espaol_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/minecraft-thumbnail-maker-free_GM479516143.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/minecraft-tiktok-hacks_GM479516143.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/coin-master-hack-spins-apk-download_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/spin-coin-master-free_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/coin-master-hack-tool-pc-download_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/robux-matchcomfree-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/free-roblox-adopt-me-pets_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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
stream_004_off0000519c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x519C 27428 bytes
SHA-256: d38328d38d740e33d1f20b2ea4c29e701e391750bd27f6e253f35c76f8c5fea3
font_01_sfnt_off00008f1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F1D 18192 bytes
SHA-256: 76421a682e25ddc3073895da10e5f06be723ab9914bfc49cca563022476f5c91

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