Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5c0261bbca93863…

MALICIOUS

PDF

36.4 KB Created: 2021-06-29 06:49:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 7dbe0d84108a5f195a03f6632f6ce66e SHA-1: 0c65901fda3d4924df536749172cd626e082381d SHA-256: a5c0261bbca9386382bd05e893474e4d3ce51f006a6cd43a5dda2576baae53b9
102 Risk Score

Malware Insights

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

This PDF document contains a large number of external links, many of which are disguised as SEO-friendly titles related to game cheats and hacks. The primary URL, http://netcdn.co/app/431946152/roblox-robux-hack-no-human-verification-or-survey-2021-game-hack, suggests a lure for users seeking unauthorized game advantages. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external links, reinforcing the malicious intent to redirect users to potentially harmful content.

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/roblox-robux-hack-no-human-verification-or-survey-2021-game-hack
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/coin-master-free-codes_GM406889139.pdf
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/tiktok-minecraft-hacks_GM479516143.pdf
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/pubg-uc-to-inr_GM1330123889.pdf
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/coin-master-attack-madness-hack_GM406889139.pdf
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-surveys_GM431946152.pdf
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/free-robux-no-verification-no-survey_GM431946152.pdf
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/minecraft-pocket-edition-download-free-pe-calculator_GM479516143.pdf
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/roblox-noclip-hack-jailbreak_GM431946152.pdf
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/free-gameplay-to-use-shooting-star-roblox_GM431946152.pdf
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/free-coin-master-gold-cards_GM406889139.pdf
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/best-way-to-get-free-robux_GM431946152.pdf
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/price-of-pubg-uc_GM1330123889.pdf
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link-2021_GM406889139.pdf
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-today-hack_GM406889139.pdf
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/coin-master-hack-with-facebook-login_GM406889139.pdf
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/coin-master-apk-hack-download_GM406889139.pdf
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/coin-master-free-spin-and-coin_GM406889139.pdf
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/hack-coin-master-343-apk_GM406889139.pdf
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/free-spins-on-coin-master-without-human-verification_GM406889139.pdf
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/who-to-get-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_off00003476.bin
dfa59196005a72043cfc16bedcf0a804c75a4e82ceff66eec7944dc5f485ba47		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3476 22280 bytes
font_01_sfnt_off00006620.bin
f892f8f2bd0c4edea0d114dd75291f97bfb5fb62212f352d561fccbdf475b6a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6620 20112 bytes

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