Malicious PDF — malware analysis report

Static analysis result for SHA-256 62f325a3f50347cd…

MALICIOUS

PDF

55.0 KB Created: 2021-05-19 21:22:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 397ab0b589f700e6d4e0e83150af7c2d SHA-1: 659b57098d618d3bf781c9401418a34288b2e215 SHA-256: 62f325a3f50347cde500bbd0d87c1fa7b19c2a74ec5d708214268a1cdce743f3
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a call-to-action phrase, strongly suggesting a lure for users to click on malicious links. The ML classifier also flagged this PDF as malicious. The primary URL, https://netcdn.xyz/app/431946152/free-robux-2021-no-verification-game-hack, and the IP-based URL http://192.168.0.99/... are the most critical indicators of potential malicious activity, likely leading to phishing or malware downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9798

Heuristics 4

  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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.xyz/app/431946152/free-robux-2021-no-verification-game-hack
    • http://www.marambio.com.ar/images/free-minecraft-accounts-2021_GM479516143.pdf
    • http://www.marambio.com.ar/images/claim-free-spins-coin-master_GM406889139.pdf
    • http://www.marambio.com.ar/images/free-coin-and-spin-in-coin-master_GM406889139.pdf
    • http://www.marambio.com.ar/images/free-robux-without-human-verification-2021_GM431946152.pdf
    • http://www.marambio.com.ar/images/free-robux-no-email_GM431946152.pdf
    • http://www.marambio.com.ar/images/free-minecraft-codes-2021_GM479516143.pdf
    • http://www.marambio.com.ar/images/coin-master-hack-game-download-mod-apk_GM406889139.pdf
    • http://www.marambio.com.ar/images/apk-coin-master-hack_GM406889139.pdf
    • http://www.marambio.com.ar/images/robuxmatchcon_GM431946152.pdf
    • http://www.marambio.com.ar/images/free-spins-on-coin-master-hack_GM406889139.pdf
    • http://www.marambio.com.ar/images/coin-master-heaven-free-spins-link_GM406889139.pdf
    • http://www.marambio.com.ar/images/free-minecraft-education-edition_GM479516143.pdf
    • http://www.marambio.com.ar/images/how-to-get-free-robux-easy-no-download_GM431946152.pdf
    • http://www.marambio.com.ar/images/coin-master-free-2021-spin-link_GM406889139.pdf
    • http://www.marambio.com.ar/images/minecraft-mod-menu-apk_GM479516143.pdf
    • http://www.marambio.com.ar/images/bloxawards-com-earn-free-robux_GM431946152.pdf
    • http://www.marambio.com.ar/images/where-can-i-get-free-coins-for-coin-master_GM406889139.pdf
    • http://www.marambio.com.ar/images/coin-master-free-100-spin-link_GM406889139.pdf
    • http://www.marambio.com.ar/images/coin-master-free-daily-spins-link_GM406889139.pdf
    • http://www.marambio.com.ar/images/roblox-com-free-robux_GM431946152.pdf
    • http://192.168.0.99/%20%3Cp%3E%3Cp%3E*WORKING*%20HOW%20TO%20GET%20HATS%20FOR%20FREE!%20
    • http://192.168.0.99/%20%3Cp%3E%3Cp%3E*WORKING*%20HOW%20TO%20GET%20HATS%20FOR%20FREE!%20(Roblox%202020
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007b70.bin
b7950a9abcee44a4145d512bc7fc46c1cf5eca4da556ec65c0b807341119ce06
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B70 24788 bytes
font_01_sfnt_off0000b36d.bin
66494d2150ad1cf2ec2ec7771a558690eaf6f54b49f1e3390ebbe78937767b49
pdf-font-stream PDF embedded font (sfnt) at offset 0xB36D 19004 bytes