Malicious PDF — malware analysis report

Static analysis result for SHA-256 e544f1030cd3a954…

MALICIOUS

PDF

35.6 KB Created: 2021-06-28 01:32:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: e2891e59cf26dd83a033045d26a4b2b0 SHA-1: 6be3bd05243920dfcc89d9f26e7973635832ea6c SHA-256: e544f1030cd3a954d1363241deb2865c26001e4e975292fc16e3670005cfe944
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links, identified by the PDF_SEO_LINK_FARM heuristic, that point to external websites. These links are presented in a deceptive manner, often related to popular games and 'free' rewards, suggesting a phishing or scam attempt. The ML_NYX_PDF_MALICIOUS heuristic further supports the malicious nature of this PDF. No scripts were extracted from this sample, but the sheer volume of external links indicates a high likelihood of redirecting users to malicious sites.

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/did-roblox-get-hacked-game-hack PDF link annotation
    • http://digilibfisip.unla.ac.id/repository/free-gold-cards-coin-master_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-free-spins-daily-fb-champion_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/we-hack-robux-generator_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-free-spins-and-coins-app_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-hack-adopt-me-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/rbx-website_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-make-pants-on-roblox-for-free-on-photopea_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-links-to-get-free-spins_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/autoboss-roblox-free-robux-pastebin-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/video-roblox-promocodes-for-free-wings_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-robux-hack-2021-pc_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/robux-free-c_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/noob-invasion-roblox-get-free-kills_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-hack-app-android-download_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-hack-unlimited-spins-and-coins-cheats_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-get-free-items-in-the-roblox-catalog-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/get-free-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-hack-roblox-accounts-to-get-robux-for-free_GM431946152.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_off000032ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32AD 22620 bytes
SHA-256: 2ca4e0d82b8dceb99712bdf241280b9cb003e048b940329c00d9c980240b8ab7
font_01_sfnt_off00006553.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6553 19224 bytes
SHA-256: 7e07d9717fd0a20f658361af93990b5a976bd58a5bfde0c5141f624292819a88

Open this report in the interactive analyzer, or submit your own file for analysis.