Malicious PDF — malware analysis report

Static analysis result for SHA-256 e64552da0ba8d344…

MALICIOUS

PDF

44.5 KB Created: 2021-06-13 22:04:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: f3768a865f863de3a79a994276cca2a1 SHA-1: ae769cf88fd2b703438963f10c11395059e5b23d SHA-256: e64552da0ba8d344b7e6be157651895eba57ef9893615c5df35631fdbf313142
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous embedded links and external URIs, predominantly related to game hacks and cheats for popular games like Roblox and Coin Master. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, suggesting a tactic to distribute malicious content or lead users to phishing sites. The ML classifier also strongly flagged this PDF as malicious. The presence of these links, combined with the document's theme, indicates a likely attempt to trick users into downloading malware or divulging sensitive information.

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-games-free-online-play-game-hack
    • https://javisintlmedia.com/images/coin-master-generator-hack_GM406889139.pdf
    • https://javisintlmedia.com/images/how-to-get-free-cards-in-coin-master_GM406889139.pdf
    • https://javisintlmedia.com/images/free-roblox-gfx_GM431946152.pdf
    • https://javisintlmedia.com/images/robux-hacks-no-human-verification-2021_GM431946152.pdf
    • https://javisintlmedia.com/images/how-to-get-free-robux-2021_GM431946152.pdf
    • https://javisintlmedia.com/images/how-to-hack-roblox-for-robux_GM431946152.pdf
    • https://javisintlmedia.com/images/coin-master-free-spins-and-coins-2021_GM406889139.pdf
    • https://javisintlmedia.com/images/how-to-get-free-robux-without-surveys_GM431946152.pdf
    • https://javisintlmedia.com/images/2021-free-robux-on-roblox_GM431946152.pdf
    • https://javisintlmedia.com/images/how-to-get-more-robux_GM431946152.pdf
    • https://javisintlmedia.com/images/free-robux-survey_GM431946152.pdf
    • https://javisintlmedia.com/images/free-robux-scam_GM431946152.pdf
    • https://javisintlmedia.com/images/minecraft-menu_GM479516143.pdf
    • https://javisintlmedia.com/images/minecraft-java-edition-free-trial_GM479516143.pdf
    • https://javisintlmedia.com/images/coin-master-free-spins-link-today-new_GM406889139.pdf
    • https://javisintlmedia.com/images/get-free-spins-from-coin-master_GM406889139.pdf
    • https://javisintlmedia.com/images/is-minecraft-dungeons-free_GM479516143.pdf
    • https://javisintlmedia.com/images/will-tiktok-free-view-bot_GM835599320.pdf
    • https://javisintlmedia.com/images/coin-master-hack-without-verification-for-iphone_GM406889139.pdf
    • https://javisintlmedia.com/images/roblox-studio-free-download_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004bc9.bin
1fba9daedce904a21f8a4f5bfa61b7e2f19d089285d23dec0de8ceb22a93da39
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BC9 26908 bytes
font_01_sfnt_off00008a32.bin
716ad192992703510b9d3b38021bff3e6f7d0aafdb38c21a5edbc6fdac842572
pdf-font-stream PDF embedded font (sfnt) at offset 0x8A32 18892 bytes