PDF static analysis report

Static analysis result for SHA-256 4bb58f7fb071ab7f…

SUSPICIOUS

PDF

34.7 KB Created: 2021-06-19 15:10:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: d554cb1f3670e8d82d86e205dadd3ac5 SHA-1: 52bf24c948cc605ec152673a1973ffdaaa032499 SHA-256: 4bb58f7fb071ab7f5a09e4a81bd21b9266ddb0bc1897ec30e58d4e0bc3aa1102
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document body and extracted URLs indicate a lure for free Robux, a common tactic for phishing or scamming users. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs suggests an attempt to redirect the user to a malicious site. No scripts were extracted from this sample, but the overall structure and content point towards a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • 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 http://netcdn.co/app/431946152/how-to-get-free-robux-on-roblox-december-2021-game-hack PDF link annotation
    • http://new-era.com.tw/image/data/files/free-roblox-hack-com_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/is-roblox-studio-free_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/roblox-skin-free_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/how-to-get-free-robux-on-chromebook_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/free-coin-and-spin-link_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/how-to-get-free-roebucks_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/roblox-piece-hack_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/best-site-for-free-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/coin-master-free-coins-cheat_GM406889139.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/minecraft-wurst-hacked-client_GM479516143.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/how-to-get-free-robux-on-phone-2021_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/best-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/free-robux-pastebin_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/free-roblox-hair-boy_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/coin-master-rewards-2021_GM406889139.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/hack-free-spin-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
font_00_sfnt_off00002eb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EB0 22260 bytes
SHA-256: 8fa5361bbb4034ed3e3c44c6e34208a589bc3a09c70f7532f3c0ff10081cc034
font_01_sfnt_off00006016.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6016 19888 bytes
SHA-256: c38ab7f57b35bcf9499ca6f6fea07657617e133cfddd013d09914f91f2346cb4

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