Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d4aa8819161c451…

MALICIOUS

PDF

35.1 KB Created: 2021-06-27 05:23:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: ea1b9196f8726b71c14955ebc8d4f9c0 SHA-1: 057f6f4552d16e6b055e0092407b7892f36b11d2 SHA-256: 7d4aa8819161c451e2557f146c2236555de1c8d3934d37e55e3ff535af595115
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains numerous links to external websites, many of which are hosted on the same domain and appear to be part of a link farm. The document body and extracted URLs suggest a lure for game-related cheats and hacks, indicating a potential attempt to trick users into downloading malware or visiting malicious sites. The ML classifier also strongly flagged this PDF as malicious.

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/filtering-enabled-hacks-roblox-game-hack PDF link annotation
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/microsoft-rewards-roblox_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/coin-master-hack-apk-35-8_GM406889139.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/free-robux-no-human-verify_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/free-hack-no-virus-roblox_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/free-robux-scams_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/minecraft-free-download-pc_GM479516143.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/free-roblox-accounts-with-builders-club_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/hacks-for-blood-flow-roblox_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/how-to-hack-a-minecraft-server_GM479516143.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/roblox-champl-dll-hack-download_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/is-it-possible-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/free-clothing-catalogs-roblox_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/coin-master-free-link-daily_GM406889139.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/rbxboost-get-free-robux-online_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/coin-master-online-hack-no-survey-no-password_GM406889139.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/free-robux-obby_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/how-to-get-robux-hack-on-computer_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_off0000321c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x321C 22284 bytes
SHA-256: b1f5725d480f3f858bca14e683e8a157664e2589d3cb2bc958d806b0865303af
font_01_sfnt_off000063c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63C0 19220 bytes
SHA-256: ee228ed6217e7ac57e5048dbec696be66f105d7e992911e9d044266808eacb6f

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