Malicious PDF — malware analysis report

Static analysis result for SHA-256 d034e20915fe6b15…

MALICIOUS

PDF

34.4 KB Created: 2021-06-19 09:14:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 42633b469cf08dcc689eaf2376c3e13b SHA-1: 664655eafaddf50ba47a50f60ab716926e0beed5 SHA-256: d034e20915fe6b156560ff1fa2063b3645205e203725a8bc92023bb8d077204f
102 Risk Score

Malware Insights

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

The PDF document contains numerous links to external websites, many of which are related to obtaining free in-game currency (Robux, Minecraft items) or followers for social media platforms. The presence of a 'download button' heuristic and the ML classifier's high confidence score indicate a malicious intent to direct users to potentially harmful content or scams. The document body, though partially corrupted, contains URLs that reinforce this phishing and scamming theme.

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/835599320/free-tiktok-followers-app-game-hack
    • https://www.ergolight.at/images/is-free-robux-real_GM431946152.pdf
    • https://www.ergolight.at/images/free-robux-gift-card-codes-2021-april_GM431946152.pdf
    • https://www.ergolight.at/images/how-to-get-the-roblox-madness-face-for-free_GM431946152.pdf
    • https://www.ergolight.at/images/seven-roblox-hack-download_GM431946152.pdf
    • https://www.ergolight.at/images/complete-offers-for-robux_GM431946152.pdf
    • https://www.ergolight.at/images/minecraft-windows-10-edition-hacked-client_GM479516143.pdf
    • https://www.ergolight.at/images/how-to-get-free-robux-without-downloading-apps_GM431946152.pdf
    • https://www.ergolight.at/images/how-to-get-free-unlimited-robux_GM431946152.pdf
    • https://www.ergolight.at/images/how-to-get-minecraft-pocket-edition-for-free_GM479516143.pdf
    • https://www.ergolight.at/images/how-to-gift-robux-on-mobile_GM431946152.pdf
    • https://www.ergolight.at/images/free-robux-only-username-no-human-verification_GM431946152.pdf
    • https://www.ergolight.at/images/roblox-inappropriate-games_GM431946152.pdf
    • https://www.ergolight.at/images/free-coins-on-coin-master_GM406889139.pdf
    • https://www.ergolight.at/images/hack-nuevo-para-roblox_GM431946152.pdf
    • https://www.ergolight.at/images/robux-sign_GM431946152.pdf
    • https://www.ergolight.at/images/how-to-coin-master-spin-hack_GM406889139.pdf
    • https://www.ergolight.at/images/roblox-hack-no-human-verification-or-survey-2021_GM431946152.pdf
    • https://www.ergolight.at/images/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdf
    • https://www.ergolight.at/images/robux-generator-no-human-verification-or-survey_GM431946152.pdf
    • https://www.ergolight.at/images/robux-for-free-no-phone-apps_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000032e2.bin
8b6d270bb839ce05bf4fa7d9904f9671ece6472906f1ba91cfce0d0547b79f14
pdf-font-stream PDF embedded font (sfnt) at offset 0x32E2 21896 bytes
font_01_sfnt_off00006367.bin
8a8135789406fdd3dd1ae3803c971850983b1ad06dee98193bf3f77445e9dc0c
pdf-font-stream PDF embedded font (sfnt) at offset 0x6367 18388 bytes