Malicious PDF — malware analysis report

Static analysis result for SHA-256 e114a90306645a7f…

MALICIOUS

PDF

35.1 KB Created: 2021-06-26 18:29:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 4a3ad38d94a6ca7deba85dd9ff652eed SHA-1: bf748ea16c83933b961a2191cfae802d6f018faa SHA-256: e114a90306645a7f5dbafd96e8eaf0a80c0df3e0e0b71ca65ecaf96620301109
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/www-roblox-cheat.us-limited-amount-hurry-and-claim-game-hack PDF link annotation
    • https://7gking.tw/upload/files/free-roblox-clothes-boy_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/free-coins-and-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/roblox-com-free_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/free-robux-no-anti-spam_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/coin-master-hack-apk-no-fb-login_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/but-link-says-free-robux_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/how-do-you-get-tiktok-hearts-for-free_GM835599320.pdfIn PDF document text
    • https://7gking.tw/upload/files/how-to-get-free-premium-roblox_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/robux-free-for-roblox_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/free-premium-roblox_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/coin-master-free-coins-and-spins-app_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/play-games-for-robux_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/coin-master-links-to-get-free-spins_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/free-robux-roblox-glitch_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/robux-robux_GM431946152.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_off0000304d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x304D 21968 bytes
SHA-256: d4fcee939c8e614d5db70cfe86c674e7f02094f85c89ce807906791057d7c26e
font_01_sfnt_off00006110.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6110 20056 bytes
SHA-256: cb06085aa4e56a74ece3e11bc9049e83d630943a8beaa8862f81770e7bcad3a9

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