Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9c5bb739693061b…

MALICIOUS

PDF

140.7 KB Created: 2022-07-08 01:24:23 +00:00 Authoring application: rozchi (via PDF Master 1.0.1) First seen: 2022-07-15
MD5: 73d76cbfc4b55c23f95705492b4b8430 SHA-1: 98a9690ae2a5c93c4a5fbe6543d38892f36dfd3d SHA-256: d9c5bb739693061b52c6f050d023d1408ab09c0ea63bfcf3d110a0bd6a200f20
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a link farm advertising cracked software, indicating a lure to download potentially malicious applications. The presence of multiple external links, including one pointing to 'lehmanbrotherbankruptcy.com', suggests an attempt to direct users to malicious sites. The document's structure and content align with phishing or malware distribution tactics.

Machine Learning

  • Nyx PDF Classifier clean score 0.0048

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://lehmanbrotherbankruptcy.com/ZG93bmxvYWR8blEyWWpWM2FYeDhNVFkxTnpFNE5qazFOWHg4TWpVM05IeDhLRTBwSUhKbFlXUXRZbXh2WnlCYlJtRnpkQ0JIUlU1ZA/arraylist.bass/aWYgaSBmYWxsIGJ5IHNoaXJsZW5ndGVhcmplcmt5IHBkZiBkb3dubG9hZAaWY/bushbucks/underachievers.proposals.perfectionist PDF link annotation
    • https://www.beaniescustom.com.au/sites/www.beaniescustom.com.au/files/webform/ETABS-181-Crack-With-Full-Torrent-2020-Latest.pdfIn PDF document text
    • http://listoo.de/wp-content/uploads/alekhr.pdfIn PDF document text
    • https://1w74.com/mardaani-top-full-movie-in-hd-1080p/In PDF document text
    • https://digipal.ps/blog/index.php?entryid=6098In PDF document text
    • http://www.viki-vienna.com/hd-online-player-tamil-dubbed-1080p-movies-housefull-exclusive/In PDF document text
    • https://theoceanviewguy.com/wp-content/uploads/2022/07/shawove.pdfIn PDF document text
    • https://yemensouq.com/wp-content/uploads/2022/07/DameWare_Mini_Remote_Control_7590_Portable.pdfIn PDF document text
    • https://rondaplaces.com/wp-content/uploads/2022/07/uldidal.pdfIn PDF document text
    • https://stonerx.me/upload/files/2022/07/3AkYpj4aJiDJHVpqkwZ6_08_4088d7bf396d87ad6ece657daae049ee_file.pdfIn PDF document text
    • https://www.brandybo.com/wp-content/uploads/2022/07/Hate_Story_3_Full_Movie_In_Hindi_Hd_Download.pdfIn PDF document text
    • http://www.ressn.com/descargar-crack-de-bionic-commando-rearmed-upd/In PDF document text
    • https://mandarinrecruitment.com/system/files/webform/darkbem646.pdfIn PDF document text
    • http://angkasydney.org/ashampoo-winoptimizer-17-00-22-crack-torrent-new-keygen-latest-version/In PDF document text
    • https://menamlanxang.com/wp-content/uploads/2022/07/berlann.pdfIn PDF document text
    • https://www.petersonsign.com/sites/default/files/webform/publicfiles/schmar646.pdfIn PDF document text
    • https://wozyzy.com/upload/files/2022/07/YUWCxAjy6rtLskcZY3vG_08_4088d7bf396d87ad6ece657daae049ee_file.pdfIn PDF document text
    • https://www.beaniescustom.com.au/sites/www.beaniescustom.com.au/files/webform/ETABS-181-CrIn PDF document text
    • https://yemensouq.com/wp-In PDF document text
    • https://stonerx.me/upload/files/2022/07/3AkYpj4aJiDJHVpqkwZ6_08_4088d7bf396d87ad6ece657daIn PDF document text
    • https://www.brandybo.com/wp-In PDF document text
    • https://wozyzy.com/upload/files/2022/07/YUWCxAjy6rtLskcZY3vG_08_4088d7bf396d87ad6ece657dIn PDF document text
    • https://siodaropigdipip.wixsite.com/prosunasam/post/championshipmanager0304freedownloadfullversion-~repack~In PDF document text
    • https://rockmitnesixs1984.wixsite.com/merimipad/post/refx-vanguard-vsti-v1-7-2-air-crack-exclusiveIn PDF document text
    • https://wakelet.com/wake/aDrWlzC4W3Hwuq00AVrKlIn PDF document text
    • https://prefimhilsukarep.wixsite.com/dishasbquarsunb/post/mixed-in-key-dj-software-for-harmonic-mixing-8-5-3In PDF document text
    • http://www.tcpdf.orgIn PDF document text
    • https://siodaropigdipip.wixsite.com/prosunasam/post/championshipmanager0304freedownloadfullvIn PDF document text
    • https://rockmitnesixs1984.wixsite.com/merimipad/post/refx-vanguard-vsti-v1-7-2-air-crack-In PDF document text
    • https://prefimhilsukarep.wixsite.com/dishasbquarsunb/post/mixed-in-key-dj-software-for-harmonic-In 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
🗂 Part of campaign: secureserver.net 1471 samples

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_016_off0001b7c4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1B7C4 119072 bytes
SHA-256: df221e87b81d1531cafdadb6c09a602e9f604d1baf0a17bbd350cbb83baa06f7