Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3c1c1655ac6e37c…

MALICIOUS

PDF

145.7 KB Created: 2022-06-08 03:40:18 +02:00 Authoring application: marcjann (via PDF Master 1.0.1) First seen: 2022-07-15
MD5: 78b70781b7928c5bbe3b9f4c3f8c7f30 SHA-1: 6af3893cb64eb53da58009a4512989b54b49ee4a SHA-256: b3c1c1655ac6e37cbeeacb104176745cd17f8746cf8f0d7484b03a431f6dc181
64 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which point to other PDF files hosted on various websites. This behavior is indicative of a link farm or SEO poisoning attack, designed to drive traffic to potentially malicious content or to host malware. The heuristic 'PDF_SEO_LINK_FARM' strongly suggests this malicious intent.

Machine Learning

  • Nyx PDF Classifier clean score 0.0078

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://evacdir.com/tourister/fastlane/kariba/?barone/Q29ycnVwdC1ET0NYLVNhbHZhZ2VyQ29.ZG93bmxvYWR8T1YxTlhSeWNYeDhNVFkxTkRZME16TTFNSHg4TWpVM05IeDhLRTBwSUhKbFlXUXRZbXh2WnlCYlJtRnpkQ0JIUlU1ZA
    • https://karemat.com/wp-content/uploads/2022/06/kafsiro.pdf
    • http://pixology.in/newstartmenu-crack-activation-key-free-final-2022/
    • https://myvideotoolbox.com/abc-amber-chm-converter-1-9-8-crack-april-2022/
    • https://carlacookiebox.com/wp-content/uploads/2022/06/IOTracker_Pro__Crack__With_Registration_Code_Updated.pdf
    • http://doyousue.com/?p=79152
    • https://www.aussnowacademy.com/pdf-to-jpg-converter-4-3-2-crack-activation-code-mac-win-latest-2022/
    • https://www.miesenbach.com/wp-content/uploads/2022/06/ginaprym.pdf
    • http://www.happytraveler.it/wp-content/uploads/2022/06/Bibliomori__Download_X64.pdf
    • https://globalart.moscow/rezultat/google-outlook-contacts-sync-latest/
    • https://lombard-magnet.ru/2022/06/08/shairport4w-1-0-7-2-free/
    • https://www.5etwal.com/wp-content/uploads/2022/06/Resolume_Avenue.pdf
    • http://livefitmag.online/wp-content/uploads/2022/06/farifuns.pdf
    • https://www.recentstatus.com/upload/files/2022/06/BfpYd9spsyijr29OlRyx_08_3c5ad02b63dd70871c32b0ed270a8839_file.pdf
    • https://noshamewithself.com/upload/files/2022/06/rJyi6xHcWFAev2v72YJn_08_7fd27701fb634faa90e39eb1b6009814_file.pdf
    • https://xn----7sbbtkovddo.xn--p1ai/inforad-manager-crack-with-serial-key-x64/
    • http://mysleepanddreams.com/flickr-sidebar-3264bit/
    • http://pzn.by/?p=14467
    • http://ubipharma.pt/?p=6749
    • https://www.recentstatus.com/upload/files/2022/06/BfpYd9spsyijr29OlRyx_08_3c5ad02b63dd70871c32b0ed270a8839_file.pd
    • https://noshamewithself.com/upload/files/2022/06/rJyi6xHcWFAev2v72YJn_08_7fd27701fb634faa90e39eb1b6009814_file.p
    • https://7smabu2.s3.amazonaws.com/upload/files/2022/06/tEADyQDXc1bxzwr9O8Tb_08_22bc9f107f0eeb0a9404e3e2c5c14c9e_file.pdf
    • http://www.tcpdf.org
    • https://7smabu2.s3.amazonaws.com/upload/files/2022/06/tEADyQDXc1bxzwr9O8Tb_08_22bc9f107f0eeb0a9404e3e2c5c14c9
    • 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_017_off000060f7.bin
a217f12862e0ff75203bdd4136ca0d68471050be46bb09aed5306898926ffdd4
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x60F7 120140 bytes