Malicious PDF — malware analysis report

Static analysis result for SHA-256 7038362665c78a2f…

MALICIOUS

PDF

35.3 KB Created: 2021-06-27 23:52:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: ff3949da54286828ccb43b9d7ca5cd19 SHA-1: d8fcb56d2a8f871e1836b95f157954530cbb5cb6 SHA-256: 7038362665c78a2f8cad3d0feecb72e6ce84dfa65ab2143c10b3f19baf5bd0a2
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links, including a primary lure for a 'free Roblox Meep City game hack' and a large number of other links pointing to game-related cheats and generators. These links likely redirect to malicious websites designed for phishing or malware distribution. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, suggesting a tactic to inflate search engine rankings or distribute malicious content widely.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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/free-roblox-meep-city-game-hack PDF link annotation
    • https://balibanknews.com/new/public/ckfinder/userfiles/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://balibanknews.com/new/public/ckfinder/userfiles/files/free-robux-sites-2021_GM431946152.pdfIn PDF document text
    • https://balibanknews.com/new/public/ckfinder/userfiles/files/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
    • https://balibanknews.com/new/public/ckfinder/userfiles/files/free-robux-codes-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://balibanknews.com/new/public/ckfinder/userfiles/files/minecraft-ps4-free_GM479516143.pdfIn PDF document text
    • https://balibanknews.com/new/public/ckfinder/userfiles/files/roblox-prisoner-life-speed-hack_GM431946152.pdfIn PDF document text
    • https://balibanknews.com/new/public/ckfinder/userfiles/files/roblox-hack-2021-youtube_GM431946152.pdfIn PDF document text
    • https://balibanknews.com/new/public/ckfinder/userfiles/files/the-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://balibanknews.com/new/public/ckfinder/userfiles/files/robux-codes-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • https://balibanknews.com/new/public/ckfinder/userfiles/files/minecraft-pocket-edition-free-ios_GM479516143.pdfIn PDF document text
    • https://balibanknews.com/new/public/ckfinder/userfiles/files/free-vip-server-roblox_GM431946152.pdfIn PDF document text
    • https://balibanknews.com/new/public/ckfinder/userfiles/files/free-spins-coin-master-october-13-2021_GM406889139.pdfIn PDF document text
    • https://balibanknews.com/new/public/ckfinder/userfiles/files/promodes-free-roblox_GM431946152.pdfIn PDF document text
    • https://balibanknews.com/new/public/ckfinder/userfiles/files/how-to-get-minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
    • https://balibanknews.com/new/public/ckfinder/userfiles/files/how-to-o-get-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://balibanknews.com/new/public/ckfinder/userfiles/files/moon-static-coin-master-generator-hacks-free_GM406889139.pdfIn PDF document text
    • https://balibanknews.com/new/public/ckfinder/userfiles/files/coin-master-free-spins-link-blogspot-today_GM406889139.pdfIn PDF document text
    • https://balibanknews.com/new/public/ckfinder/userfiles/files/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://balibanknews.com/new/public/ckfinder/userfiles/files/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • https://balibanknews.com/new/public/ckfinder/userfiles/files/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000033cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33CB 21796 bytes
SHA-256: 2f433265bb161933b0ad3dde0902682874727affd2d6e50890e9e33ab6865194
font_01_sfnt_off000063f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63F3 19424 bytes
SHA-256: 8469d76de0a0cbbfcd36ef64da2519baf54d7184535b6599d24f482f53e9e07d