Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0bc655cca9ee2e2…

MALICIOUS

PDF

42.6 KB Created: 2021-05-14 03:42:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 1b2e71a70b37233b1b3efc0b24e3ca0e SHA-1: e1cd74ab71d8f54a2b2c35c9abe245abda5546ec SHA-256: f0bc655cca9ee2e28c7b3028ef2508466b47f308ab48d0baf0779a27370c8e5b
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs that promise free in-game items for popular games like Coin Master and Roblox. The ML classifier strongly flagged this PDF as malicious, and the presence of these lures suggests a phishing or malware distribution attempt. The document body and embedded URLs indicate a scam designed to trick users into visiting malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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/406889139/coin-master-free-stuff-game-hack
    • https://elearningman2jember.com/__statics/gudangsoal/files/free-robux-no-verification-required_GM431946152.pdf
    • http://elearningman2jember.com/__statics/gudangsoal/files/rbxoffers-com-free-robux_GM431946152.pdf
    • http://elearningman2jember.com/__statics/gudangsoal/files/download-coin-master-apk-hacked_GM406889139.pdf
    • http://elearningman2jember.com/__statics/gudangsoal/files/free-roblox-outfits-2021_GM431946152.pdf
    • https://elearningman2jember.com/__statics/gudangsoal/files/free-spins-coin-master-links-2021_GM406889139.pdf
    • https://elearningman2jember.com/__statics/gudangsoal/files/coin-master-event-hack_GM406889139.pdf
    • https://elearningman2jember.com/__statics/gudangsoal/files/how-to-hack-roblox-accounts-on-phone_GM431946152.pdf
    • https://elearningman2jember.com/__statics/gudangsoal/files/coin-master-free-2021-spin-link_GM406889139.pdf
    • https://elearningman2jember.com/__statics/gudangsoal/files/coin-master-tiradas-gratis-2021_GM406889139.pdf
    • http://elearningman2jember.com/__statics/gudangsoal/files/free-robux-no-human-verification-and-no-survey_GM431946152.pdf
    • http://elearningman2jember.com/__statics/gudangsoal/files/free-robux-com-2021_GM431946152.pdf
    • http://elearningman2jember.com/__statics/gudangsoal/files/coinmaster-spin-ml-free_GM406889139.pdf
    • http://elearningman2jember.com/__statics/gudangsoal/files/roblox-hack-2021_GM431946152.pdf
    • https://elearningman2jember.com/__statics/gudangsoal/files/free-robux-generator-2021_GM431946152.pdf
    • http://elearningman2jember.com/__statics/gudangsoal/files/krnl-download_GM431946152.pdf
    • http://elearningman2jember.com/__statics/gudangsoal/files/haktuts-coin-master-free-spin-link_GM406889139.pdf
    • http://elearningman2jember.com/__statics/gudangsoal/files/how-to-get-free-robux-youtube_GM431946152.pdf
    • https://elearningman2jember.com/__statics/gudangsoal/files/how-do-i-get-free-spins-on-coin-master_GM406889139.pdf
    • http://elearningman2jember.com/__statics/gudangsoal/files/free-robux-mobile_GM431946152.pdf
    • http://elearningman2jember.com/__statics/gudangsoal/files/free-robux-hack-generator_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004bed.bin
d6ea1be35e03364b9aa5e1564f874941dc77f2425bde5497aaaba788fd30362b
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BED 25168 bytes
font_01_sfnt_off0000855a.bin
49970788d519349fbd5ba6badf06c324563f4794a9a5c1e41d0627a31815ac32
pdf-font-stream PDF embedded font (sfnt) at offset 0x855A 17848 bytes