Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc826657b36541d0…

MALICIOUS

PDF

125.2 KB Created: 2022-07-01 11:26:37 +02:00 Authoring application: hastear (via PDF Master 1.0.1) First seen: 2022-07-15
MD5: e9056d19c3f31d76f43545183972ffe0 SHA-1: 385d215668f0b9cd4b91fa105d337acfbc8a8576 SHA-256: fc826657b36541d0794cf1f378784f944f20f05c4a08fecf23476f5e37aed7c6
104 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0274

Heuristics 4

  • Cracked-software lure uses shortlink/download gateway critical PDF_CRACKED_SOFTWARE_SHORTLINK_LURE
    PDF visible text advertises a crack, serial number, archive, or pirated-software download and pairs it with a shortlink or encoded download gateway. This is a high-confidence social-engineering carrier for unwanted software or droppers; the PDF itself is not a parser exploit.
  • PDF links to a cracked-software download doorway (base64-obfuscated) high PDF_CRACKED_SOFTWARE_DOWNLOAD_DOORWAY
    PDF's embedded link hides a pirated-software title as a base64 blob inside the URL path/query (and/or carries the ``download|`` doorway-template marker), rather than in visible text. This is a TCPDF-generated SEO doorway that ranks for software-piracy searches and funnels users to fake 'crack/keygen' download pages distributing adware, potentially-unwanted programs, or droppers. The base64 encoding is deliberate obfuscation to evade plaintext lure rules; the PDF itself carries no parser exploit — the risk is the linked crack-download destination.
  • 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://findthisall.com/crois/greenstalk/saccharin.inverse/saenz/acento.unicaja/ZG93bmxvYWR8VEQ3T0RobmEzeDhNVFkxTmpZME1EZ3hOM3g4TWpVNE4zeDhLRTBwSUVobGNtOXJkU0JiUm1GemRDQkhSVTVk/ZG93bmxvYWQgcGhvdG9zaG9wIGJydXNoZXMgZm9yIGZyZWUZG9 PDF link annotation
    • http://bookmanufacturers.org/wp-content/uploads/2022/07/zimehand.pdfIn PDF document text
    • http://elkscountrygolf.com/2022/07/01/how-to-use-photoshop-7-grains-this-is-my-adobe-photoshop-7-grain-code/In PDF document text
    • http://www.ndvadvisers.com/free-leaf-brushes-65-works/In PDF document text
    • http://rrinews.co/wp-content/uploads/2022/07/margero.pdfIn PDF document text
    • https://used-gensets.com/advert/download-free-photoshop-cc-2018-to-no-trial-for-windows-mac/In PDF document text
    • https://mighty-island-24899.herokuapp.com/free_psd_background_download_for_photoshop.pdfIn PDF document text
    • http://mirrordancehair.com/?p=1067In PDF document text
    • https://services.anu.edu.au/system/files/webform/staff-amenities-fund/download-texture-photoshop-cc.pdfIn PDF document text
    • https://kjvreadersbible.com/can-i-get-photoshop-cs5-for-free/In PDF document text
    • http://jaxskateclub.org/wp-content/uploads/2022/07/hair_brush_for_photoshop_cs6_free_download.pdfIn PDF document text
    • https://www.voyavel.it/dds-photoshop-plugin-for-photomanipulation-artistic-desktop/In PDF document text
    • http://brainworksmedia.in/uncategorized/gorgeous-inner-city-illustrators-free-drawing-brushes-brusheset/In PDF document text
    • https://pure-ridge-27878.herokuapp.com/adobe_photoshop_wood_patterns_free_download.pdfIn PDF document text
    • http://barrillos.org/2022/07/01/how-to-add-topaz-labs-plugins-to-photoshop-cs6-mac-and/In PDF document text
    • https://peliculaspro.net/photoshop-cs-software-free-downloadIn PDF document text
    • https://www.promorapid.com/upload/files/2022/07/q2xYTSrYmH1wzsRUyYCb_01_9f6b112ed051e21335b9196300a96d75_file.pdfIn PDF document text
    • https://dada-sushi.ru/free-photoshop-brushes-1-542-free-downloads-129001/In PDF document text
    • http://www.studiofratini.com/adobe-photoshop-7-0-4-serial-key/In PDF document text
    • http://marqueconstructions.com/2022/07/01/free-download-adobe-photoshop-express-101-crack/In PDF document text
    • https://boucanier.ca/wp-content/uploads/2022/07/gilfad.pdfIn PDF document text
    • http://findthisall.com/crois/greenstalk/saccharin.inverse/saenz/acento.unicaja/zg93bmxvywr8veq3t0robmezedhnvfkxtmpzme1ez3hom3g4twpvne4zedhlrtbwsuvobgntoxjku0jium1gemrdqkhsvtvk/zg93bmxvywqgcghvdg9zag9wigjydxnozxmgzm9yigzyzwuzg9In 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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00002219.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2219 120140 bytes
SHA-256: a217f12862e0ff75203bdd4136ca0d68471050be46bb09aed5306898926ffdd4
font_01_sfnt_off0000cffc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFFC 76772 bytes
SHA-256: 07ce6fea3c98bf59133021be55ce9147f9c26365efe580a2a4f82130ca697f54