Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc965eabe7be2b66…

MALICIOUS

PDF

136.1 KB Created: 2022-07-06 08:15:43 +00:00 Authoring application: dummsalu (via PDF Master 1.0.1) First seen: 2022-07-15
MD5: b58d84631f93a294efa04ac7c66c8760 SHA-1: 3f85e42e28c2148ee3e086c5b8c6fc25394557bb SHA-256: fc965eabe7be2b66e37fb21f231a959d192b1226358276569520ca898008aef6
64 Risk Score

Malware Insights

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

The PDF file contains a significant number of external links, indicating a link farm or redirection strategy. One critical heuristic identified a 'PDF_SEO_LINK_FARM', suggesting the document's primary purpose is to host numerous links to other sites. The embedded URL 'http://esecuritys.com/grates.ZGlydCAyIGF1dG9zYXZlIGNyYWNrZGl/ZG93bmxvYWR8NzZkWkdVM2NYeDhNVFkxTnpBMk56RTFOSHg4TWpVNE4zeDhLRTBwSUVobGNtOXJkU0JiUm1GemRDQkhSVTVk/accurate/coolly/?kefal=lumbers&herold=percepts' is likely part of this malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier clean score 0.0079

Heuristics 3

  • 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.
  • 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://esecuritys.com/grates.ZGlydCAyIGF1dG9zYXZlIGNyYWNrZGl/ZG93bmxvYWR8NzZkWkdVM2NYeDhNVFkxTnpBMk56RTFOSHg4TWpVNE4zeDhLRTBwSUVobGNtOXJkU0JiUm1GemRDQkhSVTVk/accurate/coolly/?kefal=lumbers&herold=percepts
    • https://myrealex.com/upload/files/2022/07/9RPLdcUrYCp5ByGGVBwb_06_8fd5b7e41eadcc951d588d3b911eccf2_file.pdf
    • https://thebrothers.cl/terraria-hacked-world-download-pc-all-30-free-2/
    • https://techessay.org/wp-content/uploads/2022/07/farquil.pdf
    • https://xn--80aagyardii6h.xn--p1ai/download-__exclusive__-medicina-interna-veterinaria-ettinger/
    • http://www.chandabags.com/ufs-explorer-professional-recovery-5-19-1-install-2021/
    • https://www.solaiocompound.it/wp-content/uploads/2022/07/darrnand.pdf
    • http://educationalliance.org/2022/07/pro-landscape-18-crack-exclusive/
    • http://www.ganfornina-batiment.com/2022/07/06/matlab-2013a-torrent/
    • https://kisacoresearch.com/sites/default/files/webform/beauty_money_submissions/keescov320.pdf
    • https://4w15.com/ewallet-6-serial-key-link/
    • https://www.cameraitacina.com/en/system/files/webform/feedback/database-systems-by-thomas-connolly-4th-edition-solutions.pdf
    • https://topnotchjobboard.com/system/files/webform/resume/vartroz598.pdf
    • https://www.amphenolalden.com/system/files/webform/Dhoom-2-1-Full-Movie-Download-Kickass-Torrent.pdf
    • https://autoentrespasos.com/advert/projectsam-symphobia-2-v1-3-3-update-kontakt-akademic-hot/
    • https://www.b-webdesign.org/dir-wowonder/upload/files/2022/07/kXwOnVE4aOUejyAZiUpC_06_8fd5b7e41eadcc951d588d3b911eccf2_file.pdf
    • https://wozyzy.com/upload/files/2022/07/z1UDhgKUzva4lxNWdDGd_06_dbb75cdce27f6a992869a5ecba42996a_file.pdf
    • https://cwestrealty.com/wp-content/uploads/2022/07/deemmak.pdf
    • https://livefitstore.in/advert/ls-magazine-issue-4-young-and-fresh-rar/
    • https://win-win-plan.com/wp-content/uploads/2022/07/laurhar.pdf
    • https://myrealex.com/upload/files/2022/07/9RPLdcUrYCp5ByGGVBwb_06_8fd5b7e4
    • https://xn--80aagyardii6h.xn--p1ai/download-__exclusive__-medicina-interna-
    • http://www.chandabags.com/ufs-explorer-professional-
    • https://kisacoresearch.com/sites/default/files/webform/beauty_money_submissions/
    • https://www.cameraitacina.com/en/system/files/webform/feedback/database-
    • https://www.amphenolalden.com/system/files/webform/Dhoom-2-1-Full-Movie-
    • https://autoentrespasos.com/advert/projectsam-symphobia-2-v1-3-3-update-
    • https://www.b-webdesign.org/dir-wowonder/upload/files/2022/07/kXwOnVE4aOUejy
    • https://wozyzy.com/upload/files/2022/07/z1UDhgKUzva4lxNWdDGd_06_dbb75cdce
    • https://clas-forms.asu.edu/system/files/webform/nox-app-player-6011-free-download-2017-latest.pdf
    • http://www.tcpdf.org
    • https://clas-forms.asu.edu/system/files/webform/nox-app-player-6011-free-
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://www.aiim.org/pdfa/ns/extension/
    • http://www.aiim.org/pdfa/ns/schema#
    • http://www.aiim.org/pdfa/ns/property#
    • http://www.aiim.org/pdfa/ns/id/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_010_off0001a428.bin
df221e87b81d1531cafdadb6c09a602e9f604d1baf0a17bbd350cbb83baa06f7
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1A428 119072 bytes