Malicious PDF — malware analysis report

Static analysis result for SHA-256 eae3aa3dbee509fd…

MALICIOUS

PDF

33.9 KB Created: 2021-06-27 06:31:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: c5ebc08f7ebba09e40c3e8f6aaa722d7 SHA-1: 7ac51b583ee29be20953e1033a3e1ccce7f7d0d2 SHA-256: eae3aa3dbee509fd025d9e8d01935b326c009926894a30fd0aba07ed7826e568
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The document contains multiple embedded URLs and a prominent external URI pointing to sites offering game hacks and account recovery services, strongly suggesting a phishing or scam attempt. The ML classifier also flagged this PDF with high confidence. The presence of a download button lure and callback lure heuristics further supports a malicious intent to trick users into downloading further payloads or engaging with fraudulent services.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/roblox-recover-hacked-account-no-email-game-hack
    • https://domc.tw/upload/files/free-spins-from-coin-master_GM406889139.pdf
    • https://domc.tw/upload/files/free-robux-glitch_GM431946152.pdf
    • https://domc.tw/upload/files/roblox-hackers-list_GM431946152.pdf
    • https://domc.tw/upload/files/free-robux-codes-2021-real_GM431946152.pdf
    • https://domc.tw/upload/files/how-to-hack-roblox-accounts-on-phone_GM431946152.pdf
    • https://domc.tw/upload/files/free-spins-promo-code-for-coin-master_GM406889139.pdf
    • https://domc.tw/upload/files/robux-hack-free-robux_GM431946152.pdf
    • https://domc.tw/upload/files/free-robux-generator-hack-2021_GM431946152.pdf
    • https://domc.tw/upload/files/minecraft-xbox-one-free_GM479516143.pdf
    • https://domc.tw/upload/files/best-free-robux-sites-2021-november_GM431946152.pdf
    • https://domc.tw/upload/files/roblox-free-font-download_GM431946152.pdf
    • https://domc.tw/upload/files/free-roblox-card_GM431946152.pdf
    • https://domc.tw/upload/files/free-roblox-decal_GM431946152.pdf
    • https://domc.tw/upload/files/coin-master-gift-hack_GM406889139.pdf
    • https://domc.tw/upload/files/downlode-a-roblox-hack-tool_GM431946152.pdf
    • https://domc.tw/upload/files/coin-master-apk-hack-2021_GM406889139.pdf
    • https://domc.tw/upload/files/earn-points-for-robux_GM431946152.pdf
    • https://domc.tw/upload/files/roblox-mobile-hack_GM431946152.pdf
    • https://domc.tw/upload/files/minecraft-education-free_GM479516143.pdf
    • https://domc.tw/upload/files/free-robux-hacker-us_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002dab.bin
448e47a1f7508a90ea7606e834c291ba443afed9e4276f94bca23b144fa37730
pdf-font-stream PDF embedded font (sfnt) at offset 0x2DAB 21876 bytes
font_01_sfnt_off00005dde.bin
93913ffa08f2dfd832781a7f07195e1e85b2213446beaef6b0937ccf74786cb5
pdf-font-stream PDF embedded font (sfnt) at offset 0x5DDE 19568 bytes