Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e66e7c295e165fb…

MALICIOUS

PDF

45.4 KB Created: 2021-06-13 20:58:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: a293678c9c031fee1f71889fc22ba28c SHA-1: e6e9643f16d13cf2f159188486afcd48f70101cb SHA-256: 0e66e7c295e165fb5e2fcf0d664e0b8f291e3ca901ea90439bd225ddbedc607b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirector infrastructure, specifically advertising 'free generators' and 'game hacks' for popular games like Roblox. These links are designed to lure users to malicious sites that likely host further malware or phishing content. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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-hack-ga-game-hack In PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/free-robux-25k_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/real-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/hack-roblox-free-builders-club_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/robux-fun-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/how-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/minecraft-free-download-iphone_GM479516143.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/minecraft-free-download-windows-10_GM479516143.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/roblox-shirt-template-free-to-use_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/free-robux-real_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/quick-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/frost-guard-general-roblox-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/free-roblox-followers-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/free-scripts-for-roblox-studio_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/free-coins-and-spins-coin-master_GM406889139.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_003_off00004c99.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C99 28656 bytes
SHA-256: b873da20093f5cfd107bb5af17e6afea1663530c876e1b727224d73d54b07ae1
font_01_sfnt_off00008f8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F8C 18184 bytes
SHA-256: 3275d650180bfb45a9fb7d5756aac43dcbbafe87c7818dab7a1b2e1f44194404

Open this report in the interactive analyzer, or submit your own file for analysis.