Malicious PDF — malware analysis report

Static analysis result for SHA-256 74f9817475f83d78…

MALICIOUS

PDF

34.0 KB Created: 2021-06-27 07:59:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: e3d732f460d8c1db9b73d902fb957372 SHA-1: a22583ce6f40fd12b16a1a4d30434c5d562a92ac SHA-256: 74f9817475f83d785c18d3109dcb6e3329d91a5eeca0b8176f40af42bb576e16
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous embedded URLs and a call-to-action phrase, strongly suggesting a phishing or scam attempt. The primary lure is the promise of free in-game currency for Roblox, a common tactic to entice users to click malicious links. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/can-i-just-get-free-robux-now-game-hack
    • http://183.91.70.11/repository/how-to-get-free-robux-100-real-2021_GM431946152.pdf
    • http://183.91.70.11/repository/tdm-shirt-roblox-free_GM431946152.pdf
    • http://183.91.70.11/repository/roblox-robux-hack-download-ios_GM431946152.pdf
    • http://183.91.70.11/repository/free-roblox-followers-generator-2021_GM431946152.pdf
    • http://183.91.70.11/repository/how-to-hack-jailbreak-roblox_GM431946152.pdf
    • http://183.91.70.11/repository/how-to-make-free-robux_GM431946152.pdf
    • http://183.91.70.11/repository/how-to-get-free-robux-no-scam_GM431946152.pdf
    • http://183.91.70.11/repository/free-robux-2021_GM431946152.pdf
    • http://183.91.70.11/repository/free-robux-no-human-verification-no-survey-no-offers_GM431946152.pdf
    • http://183.91.70.11/repository/pyudry-cheat-roblox_GM431946152.pdf
    • http://183.91.70.11/repository/apkpure-free-robux_GM431946152.pdf
    • http://183.91.70.11/repository/roblox-robux-hack-no-human-verification_GM431946152.pdf
    • http://183.91.70.11/repository/free-robux-no-survey_GM431946152.pdf
    • http://183.91.70.11/repository/free-minecraft-account-and-password-generator_GM479516143.pdf
    • http://183.91.70.11/repository/cheat-rpg-world-roblox-script_GM431946152.pdf
    • http://183.91.70.11/repository/roblox-gear-hack-script-pastebin_GM431946152.pdf
    • http://183.91.70.11/repository/free-robux-without-doing-anything_GM431946152.pdf
    • http://183.91.70.11/repository/free-100-robux_GM431946152.pdf
    • http://183.91.70.11/repository/how-to-hack-a-roblox-account-easy_GM431946152.pdf
    • http://183.91.70.11/repository/apps-for-free-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ec2.bin
7af9c786ae5404f516ec80c5e232a74628a2a63df15c4ef6b591b3021cb6ed2b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2EC2 21916 bytes
font_01_sfnt_off00005f46.bin
bb36ee0a851c19cca4c02d76d5da9dcd75655081075f8f7baf492dbb55d924b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F46 19148 bytes

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