Malicious PDF — malware analysis report

Static analysis result for SHA-256 1acfabfaf0faf3d1…

MALICIOUS

PDF

52.5 KB Created: 2021-06-03 14:33:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 04226437aabc61253bd93bdda208c2df SHA-1: 46476d0bf0a5329d86fc8a35c46d15cb93c2279b SHA-256: 1acfabfaf0faf3d1c988f6ff2f56488620e8046b304aa3051c0853b41e326fe6
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous external links, many of which are related to 'free Robux' or 'Coin Master' cheats, indicating a likely scam or phishing attempt. The presence of a direct link to 'netcdn.online' further suggests a malicious redirection or download. The document's structure and the ML classifier's high confidence score support the assessment of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9586

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/how-do-we-get-free-robux-game-hack
    • https://pustaka.mic.sch.id//repository/earn-free-spins-for-coin-master_GM406889139.pdf
    • https://pustaka.mic.sch.id//repository/robux-no-survey_GM431946152.pdf
    • https://pustaka.mic.sch.id//repository/how-to-get-free-spins-on-coin-master-hack_GM406889139.pdf
    • https://pustaka.mic.sch.id//repository/coin-master-free-spins-link-2021-app_GM406889139.pdf
    • https://pustaka.mic.sch.id//repository/free-robux-without-doing-anything_GM431946152.pdf
    • https://pustaka.mic.sch.id//repository/coin-master-hack-spin-link_GM406889139.pdf
    • https://pustaka.mic.sch.id//repository/coin-master-free-spin-and-coin-links_GM406889139.pdf
    • https://pustaka.mic.sch.id//repository/earn-robux-today-earn-robux-today_GM431946152.pdf
    • https://pustaka.mic.sch.id//repository/free-robux-images_GM431946152.pdf
    • https://pustaka.mic.sch.id//repository/free-robux-generator-no-verification-2021_GM431946152.pdf
    • https://pustaka.mic.sch.id//repository/free-robux-codes_GM431946152.pdf
    • https://pustaka.mic.sch.id//repository/how-to-get-free-robux-hack_GM431946152.pdf
    • https://pustaka.mic.sch.id//repository/free-robux-codes-2021-not-used_GM431946152.pdf
    • https://pustaka.mic.sch.id//repository/roblox-gang-rape_GM431946152.pdf
    • https://pustaka.mic.sch.id/repository/how-to-get-free-robux-without-information_GM431946152.pdf
    • https://pustaka.mic.sch.id//repository/free-robux-generator-no-human-verification-or-surveys_GM431946152.pdf
    • https://pustaka.mic.sch.id//repository/get-free-robux-without-doing-anything_GM431946152.pdf
    • https://pustaka.mic.sch.id//repository/free-robux-on-iphone_GM431946152.pdf
    • https://pustaka.mic.sch.id//repository/coin-master-free-spins-link-today-facebook_GM406889139.pdf
    • https://pustaka.mic.sch.id//repository/earn-free-robux-on-roblox_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000502f.bin
45f2bf6fe6ffcb353907173ebbd6ef3ca56ae4550ec6cd0fb4c7e24099b4df62		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x502F 26904 bytes
font_01_sfnt_off00008e9b.bin
7b13f62dd83f6e5b39d850f66139f44fff841e4e695f86fdfbe4d5a2de470bf2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E9B 8132 bytes
font_02_sfnt_off0000a98c.bin
357fc7c7eb6196ee12ed3080908575177554d85b467bf9142ee0ee232c3cf829		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA98C 18648 bytes

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