Malicious PDF — malware analysis report

Static analysis result for SHA-256 640d5a61e4b1b677…

MALICIOUS

PDF

118.1 KB Created: 2022-07-18 13:38:01 +00:00 Authoring application: darlev (via PDF Master 1.0.1) First seen: 2026-05-17
MD5: be36b84e2be82cf3729e923d155dec07 SHA-1: 168578864d08a35a5abc35b2eabb2335ea8aa4eb SHA-256: 640d5a61e4b1b6773ff38198eac23674f464ccc298b5f8d8738c6913be30b3df
164 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0018

Heuristics 6

  • 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.
  • Cracked-software lure uses download-gateway redirectors high PDF_CRACKED_SOFTWARE_REDIRECTOR_LINK_FARM
    PDF contains multiple cracked-software/keygen/serial-key lure links together with long encoded download-gateway URLs or known crack-download redirector hosts. This is stronger than generic piracy vocabulary: the document is an SEO lure that funnels users through redirect/download infrastructure commonly used for adware, unwanted software, or droppers.
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. 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://evacdir.com/chelsea?elian=QWRvYmUgUGhvdG9zaG9wIENTNiBFeHRlbmRlZCAxMy4wLjEuMSBjcmFjayBkb3dubG9hZAQWR.sycophant.buhler.penetrates.ZG93bmxvYWR8ZEU4ZDJFNE1ueDhNVFkxT0RBd05qWTVPWHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA PDF link annotation
    • https://serippyshop.com/eset-nod32-antivirus-smart-security-v-10-1-235-1-crackzsoft-serial-key-keygen-exclusive/In PDF document text
    • http://amnar.ro/?p=17347In PDF document text
    • https://mashxingon.com/logitech-quickcam-express-v-ub2-hot/In PDF document text
    • http://powervapes.net/kick-2-hd-movie-download-better-720p-74/In PDF document text
    • https://coolbreezebeverages.com/patched-camfrog-pro-serial-free/In PDF document text
    • http://thingsforfitness.com/free-crack-drivereasy-4-3-2-no-speed-limit/In PDF document text
    • https://sut.oribentech.com/advert/rush-1080p-movie-torrent/In PDF document text
    • https://sandylaneestatebeachclub.com/wp-content/uploads/2022/07/Stellarphoenixoutlookpstrepairv45serialkeytorrentzip_CRACKED.pdfIn PDF document text
    • https://studiolegalefiorucci.it/2022/07/18/devart-securebridge-8-1-3-for-berlin-free/In PDF document text
    • https://ig-link.com/hack-autodesk-revit-2019-multi-win64-better/In PDF document text
    • http://www.bankerogkontanter.no/wp-content/uploads/2022/07/alarnag.pdfIn PDF document text
    • https://thetopteninfo.com/wp-content/uploads/2022/07/Plx_Pci6140_Aa33pc_Dvr_Driver.pdfIn PDF document text
    • https://serippyshop.com/wp-content/uploads/2022/07/ibm_viavoice_gold_v5_free_download.pdfIn PDF document text
    • http://leasevoordeel.be/wp-content/uploads/2022/07/Free_Download_INSTALL_Dragon_City_Game_For_Pc_Full_Version.pdfIn PDF document text
    • https://www.raven-guard.info/the-magic-by-rhonda-byrne-pdf-in-tamil-129311/In PDF document text
    • https://www.spasvseyarusi.ru/advert/clearview-rc-flight-simulator-crack-download-free/In PDF document text
    • https://www.newportcyclespeedway.co.uk/advert/codeware-compress-2012-7200-crackl-free/In PDF document text
    • http://powervapes.net/nokia-n8-hd-games-free-free-download-2013/In PDF document text
    • https://travkamyravka.ru/8086-disassembler-download-in-pc-new.htmlIn PDF document text
    • http://www.b3llaphotographyblog.com/autocad-lt-2013-64-bit-keygen-free-link/In PDF document text
    • https://serippyshop.com/eset-nod32-antivirus-smart-security-v-10-1-235-1-crackzsoft-serial-key-keygen-In PDF document text
    • https://sandylaneestatebeachclub.com/wp-In PDF document text
    • http://leasevoordeel.be/wp-In PDF document text
    • http://evacdir.com/chelsea?elian=qwrvymugughvdg9zag9wientnibfehrlbmrlzcaxmy4wljeumsbjcmfjaybkb3dubg9hzaqwr.sycophant.buhler.penetrates.zg93bmxvywr8zeu4zdjfne1uedhnvfkxt0rbd05qwtvpwhg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbdaIn 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
🗂 Part of campaign: secureserver.net 1471 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002771.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2771 84524 bytes
SHA-256: 98f56c2009c6ff0febacef3ea645f195b2203a6c70384dd5e936a3c9aaf1dd8e
font_01_sfnt_off0000af68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAF68 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261