PDF malware analysis — malicious · 1ae575d20418beff

MALICIOUS

PDF

137.9 KB Created: 2022-07-06 03:11:04 +00:00 Authoring application: zyryalbe (via PDF Master 1.0.1) First seen: 2022-07-15

MD5: 6cdbe65a68fe84d6ce706b417bfb9010 SHA-1: b06f55e714f4b274c54e1280619e84ce515132c7 SHA-256: 1ae575d20418beffa83ac3b58e8136a0bd539bd994211ff105c1c1e3ce0f93d9

64 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF document contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic. One of these links, http://signforcover.com/Tm9ydG9uIEludGVybmV0IFNlY3VyaXR5IDIwMTQgVHJpYWwgUmVzZXQgMTgwIERheXMgLnppcATm9/ZG93bmxvYWR8ck43Tkd0eWFueDhNVFkxTnpBMk56RTFOSHg4TWpVM05IeDhLRTBwSUhKbFlXUXRZbXh2WnlCYlJtRnpkQ0JIUlU1ZA/aiding.knuckles.expat?bopper=buckingham, appears to be a lure for downloading potentially malicious content. The presence of numerous links suggests a tactic to distribute malware or engage in SEO abuse.

Machine Learning

Nyx PDF Classifier clean score 0.0061

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://signforcover.com/Tm9ydG9uIEludGVybmV0IFNlY3VyaXR5IDIwMTQgVHJpYWwgUmVzZXQgMTgwIERheXMgLnppcATm9/ZG93bmxvYWR8ck43Tkd0eWFueDhNVFkxTnpBMk56RTFOSHg4TWpVM05IeDhLRTBwSUhKbFlXUXRZbXh2WnlCYlJtRnpkQ0JIUlU1ZA/aiding.knuckles.expat?bopper=buckingham
- https://texvasa.com/2022/07/06/patched-download-switch-bot-metin2-steel/
- http://ajkersebok.com/?p=45468
- https://cefcredit.com/wp-content/uploads/2022/07/Treasure_Island_Media_Slammed.pdf
- http://findmallorca.com/mojosoft-photo-frame-studio-2-96-dc-20-11-2014-incl-licensekey/
- https://lms.kincatonly.com/blog/index.php?entryid=16610
- https://stompster.com/upload/files/2022/07/IrrCQmzfBg8ctJe5WMfx_06_97f3d9e108e3623af3fda7a1c95f6bbb_file.pdf
- https://holidaygifts.review/etabs-2013-crack-416-exclusive/
- https://www.madrassah.mu/blog/index.php?entryid=7237
- https://tchatche.ci/upload/files/2022/07/XPEkQPL4IDskv4NKbd7Q_06_97f3d9e108e3623af3fda7a1c95f6bbb_file.pdf
- https://btr-pen.com/wp-content/uploads/2022/07/dejaodel.pdf
- https://www.brookfield.k12.ct.us/sites/g/files/vyhlif4196/f/pages/advocacy_letter_from_brookfield_public_schools.pdf
- https://goosetopia.com/wp-content/uploads/2022/07/Darcorp_Advanced_Aircraft_Analysis_Crack_REPACKed.pdf
- https://fajas.club/wp-content/uploads/2022/07/gillolym.pdf
- https://conexionfit.net/wp-content/uploads/2022/07/Microsoft_Office_Visio_2003_Portablerar.pdf
- https://www.photo-mounts.co.uk/advert/kmspico-11-1-9-final-portable-office-and-windows-10-activator-rar/
- https://westghostproductions.com/wp-content/uploads/2022/07/Peace_And_Human_Rights_Issues_And_Concepts_Pdf_Free_PATCHED.pdf
- https://fumostoppista.com/leica-geo-office-5-setup-crack-exclusive-79/
- http://www.vidriositalia.cl/?p=39700
- https://stompster.com/upload/files/2022/07/IrrCQmzfBg8ctJe5WMfx_06_97f3d9e108e3623af3fda7a1c
- https://tchatche.ci/upload/files/2022/07/XPEkQPL4IDskv4NKbd7Q_06_97f3d9e108e3623af3fda7a1c9
- https://www.brookfield.k12.ct.us/sites/g/files/vyhlif4196/f/pages/advocacy_letter_from_brookfield_pub
- https://goosetopia.com/wp-
- https://www.photo-mounts.co.uk/advert/kmspico-11-1-9-final-portable-office-and-
- https://westghostproductions.com/wp-
- https://trello.com/c/GrKvAv2c/114-hot-download-catia-v5r20-64-bits-torrent
- https://fd.lisboa.ucp.pt/sites/default/files/webform/sidra-intersection-6-crackrar.pdf
- http://www.tcpdf.org
- 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.

Filename	Kind	Source	Size
`stream_013_off0001afbc.bin` `df221e87b81d1531cafdadb6c09a602e9f604d1baf0a17bbd350cbb83baa06f7`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x1AFBC	119072 bytes

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