Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae53177c86f5f554…

MALICIOUS

PDF

139.4 KB Created: 2022-07-04 01:35:24 +00:00 Authoring application: rupsial (via PDF Master 1.0.1) First seen: 2022-07-15
MD5: ddcf17222c7803a7dd696840cbf55330 SHA-1: b92105e5ad02f753ea1e3e0f24fa96864b0b00d7 SHA-256: ae53177c86f5f554466d84de71961e2e5f920dc28e65d2bf2f9c111eb3562ba3
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, many of which are advertised as cracked software downloads. The heuristic PDF_SEO_LINK_FARM indicates a link farm designed to attract traffic, and PDF_CRACKED_SOFTWARE_LURE confirms the nature of the advertised content. The embedded URL at offset 0x1F3B7, http://xtraserp.com/SU1BUENoZWNrSU1/alliedhighschool=ZG93bmxvYWR8WmsxTW1scmFueDhNVFkxTmpnNU1qTTFNbng4TWpVM05IeDhLRTBwSUhKbFlXUXRZbXh2WnlCYlJtRnpkQ0JIUlU1ZA/carpooling/mutilated.snorting, is a primary IOC. While no scripts were extracted, the structure suggests a malicious document intended for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier clean score 0.0057

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.
  • PDF link farm advertises cracked/pirated software medium PDF_CRACKED_SOFTWARE_LURE
    PDF contains many clickable links whose targets use cracked-software, keygen, serial-key, or warez vocabulary. These are SEO-spam lure documents that rank for software-piracy searches and route users to fake 'crack' download pages distributing potentially-unwanted programs, adware, or droppers. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://xtraserp.com/SU1BUENoZWNrSU1/alliedhighschool=ZG93bmxvYWR8WmsxTW1scmFueDhNVFkxTmpnNU1qTTFNbng4TWpVM05IeDhLRTBwSUhKbFlXUXRZbXh2WnlCYlJtRnpkQ0JIUlU1ZA/carpooling/mutilated.snorting PDF link annotation
    • https://itsupportnetwork.com/convert-xls-crack-2022-latest/In PDF document text
    • https://ontimewld.com/upload/files/2022/07/9oljWe65cay985KVMBSn_04_05d82d83fb9067702a0e0f7d54be76f5_file.pdfIn PDF document text
    • http://op-immobilien.de/?p=9368In PDF document text
    • https://aapanobadi.com/2022/07/04/syncml-client-for-ms-outlook-crack-activation-code-free-download-2022-latest/In PDF document text
    • http://www.jrwarriorssc.com/wp-content/uploads/2022/07/maynqui.pdfIn PDF document text
    • https://ig-link.com/arlequin-crack-activation-free-for-pc/In PDF document text
    • http://fritec-doettingen.ch/wp-content/uploads/2022/07/Evernote2Onenote__Crack__Download_For_Windows_Latest.pdfIn PDF document text
    • https://www.apokoronews.gr/advert/bohemian-typewriter-x64/In PDF document text
    • https://ak-asyl-mgh.de/advert/quickset-internet-zone-for-pc/In PDF document text
    • https://streetbazaaronline.com/wp-content/uploads/2022/07/Simply_Modbus_TCP__Crack___Download_WinMac_Updated2022.pdfIn PDF document text
    • https://socialmentoor.com/wp-content/uploads/2022/07/funrej.pdfIn PDF document text
    • http://www.strelkabrno.cz/advert/ip2location-lookup-tool-with-registration-code-win-mac-2022/In PDF document text
    • https://cuteteddybearpuppies.com/2022/07/guifloatsign-free/In PDF document text
    • http://cyclades.in/en/?p=87655In PDF document text
    • https://sjbparishnaacp.org/wp-content/uploads/2022/07/EZ_Reg_Editor__Crack___Activation_Code_Free_Download_X64.pdfIn PDF document text
    • https://www.fairhaven-ma.gov/sites/g/files/vyhlif7541/f/uploads/records_access-_retirement.pdfIn PDF document text
    • https://rednails.store/blu-ray-disc-ripper-crack-free-updated-2022/In PDF document text
    • https://med-smi.com/��������-��������������/In PDF document text
    • http://go-premiums.com/wp-content/uploads/2022/07/foo_browser.pdfIn PDF document text
    • https://www.bigdawgusa.com/mathomatic-with-license-code-free-download-win-mac-2022/In PDF document text
    • https://ontimewld.com/upload/files/2022/07/9oljWe65cay985KVMBSn_04_05d82d83fb9067702a0e0f7d54be76fIn PDF document text
    • https://aapanobadi.com/2022/07/04/syncml-client-for-ms-outlook-crack-activation-code-free-In PDF document text
    • http://fritec-doettingen.ch/wp-In PDF document text
    • https://streetbazaaronline.com/wp-In PDF document text
    • https://sjbparishnaacp.org/wp-In PDF document text
    • https://med-smi.com/���������������-���������������������������/In PDF document text
    • http://fritec-doettingen.ch/wp-content/uploads/2022/07/evernote2onenote__crack__download_for_windows_latest.pdfIn PDF document text
    • http://www.tcpdf.orgIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://www.aiim.org/pdfa/ns/extension/In PDF document text
    • http://www.aiim.org/pdfa/ns/schema#In PDF document text
    • http://www.aiim.org/pdfa/ns/property#In PDF document text
    • http://www.aiim.org/pdfa/ns/id/In PDF document text
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