Malicious PDF — malware analysis report

Static analysis result for SHA-256 166d8b6787c4d329…

MALICIOUS

PDF

33.8 KB Created: 2021-06-29 19:50:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: a065c9bbeb3a81dda924faf1a4a3f83b SHA-1: ac32cd3e38da9e8c332aa9f93a1a3ac76009ee35 SHA-256: 166d8b6787c4d329fea3db2f8dcc0c6105e5161202ff9a56f057d69226bcea17
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded URLs and document body text that are designed to lure users into downloading game hacks and in-game currency. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' indicates that the primary URL redirects to known malicious infrastructure, suggesting a download or exploit delivery attempt. No scripts were extracted from this sample, but the overall pattern suggests a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • 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/free_kekistan-roblox-game-hack In PDF document text
    • https://library.institutpendidikan.ac.id/repository/hexus-download-free-roblox_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/coin-master-hack-no-download_GM406889139.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/fps-hacks-roblox-aimbot-not-pf_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/coin-master--hack_GM406889139.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/coin-master-map_GM406889139.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/easypoints-gg-roblox_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/roblox-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/free-robux-no-verification-no-download_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/coin-master-for-pc-free-download_GM406889139.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/free-robux-card-codes_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/roblox-18_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/como-hackear-cuentas-de-roblox-gratuitas_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/roblox-dragon-ball-rage-cheat-engine_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/free-robux-no-download-2021_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/wahoogaming-co-free-robux_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/robux-fun-hack_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/free-robux-without-human-verification_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
font_00_sfnt_off00002de0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DE0 22112 bytes
SHA-256: 8921e428c9662c1a449e04db04a0c2a48bdc70f1ec36998a0e6d077aa46fdb93
font_01_sfnt_off00005ee7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE7 19076 bytes
SHA-256: f72fb63ab133c012b1b96370d5f4f0979a67e3d99a2f7e57546e84dad4f282fa

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