Malicious PDF — malware analysis report

Static analysis result for SHA-256 018f8d664991f375…

MALICIOUS

PDF

127.4 KB Created: 2022-07-06 11:21:52 +00:00 Authoring application: berwsel (via PDF Master 1.0.1) First seen: 2026-04-08
MD5: 6a277e9190686101fad9d4a008d3036a SHA-1: 8be721e62558801c05c7e692c4e0acf2202519be SHA-256: 018f8d664991f3754605ecf84ab1152287f8baecb861690f72fa9bd0f29a79e2
164 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0098

Heuristics 5

  • 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.
  • 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://mydrugdir.com/universities/guillen/acceded=mcdowell.meinck/nclb=ZG93bmxvYWR8b1cyYWprM2NYeDhNVFkxTnpBMk56RTFOSHg4TWpVM05IeDhLRTBwSUhKbFlXUXRZbXh2WnlCYlJtRnpkQ0JIUlU1ZA.RGVzY2FyZ2FyUGx1Z2luTWFza1BybzVQaG90b3Nob3BDczY2NEJpdARGV/ PDF link annotation
    • http://hotelthequeen.it/2022/07/06/realtek-11n-usb-wireless-lan-driver-utility-windows-7-better-downloadl/In PDF document text
    • https://www.marlowropes.com/system/files/webform/FSX--Turbine-Sound-Studios-Airbus-A330-GE-and-P-W.pdfIn PDF document text
    • https://heidylu.com/zlocin-i-kazna-film-sa-prevodom-download-install/In PDF document text
    • https://lasdocas.cl/kuchh-bheege-alfaaz-movie-dvdrip-download-new/In PDF document text
    • https://righttoexpress.com/upload/files/2022/07/vcBV7St6P47t3GhFyyB8_06_76abdfaf2dab54e62f19a223828dc7ec_file.pdfIn PDF document text
    • https://www.kekogram.com/upload/files/2022/07/CsLED1kAno7ZtojaHR7M_06_bf625585ed61aba237bf6718dc89ea7a_file.pdfIn PDF document text
    • https://startclube.net/upload/files/2022/07/r9eqblQi3WbNnLvDA2CH_06_bf625585ed61aba237bf6718dc89ea7a_file.pdfIn PDF document text
    • https://www.tailormade-logistics.com/sites/default/files/webform/kailbian949.pdfIn PDF document text
    • https://pes-sa.com/sites/default/files/webform/hd-online-player-sudhu-tomari-jonno-full-movie-downlo.pdfIn PDF document text
    • https://www.agg-net.com/files/aggnet/webform/bahrul-mazi-jilid-15-pdf-50.pdfIn PDF document text
    • https://www.realvalueproducts.com/sites/realvalueproducts.com/files/webform/scovcer544.pdfIn PDF document text
    • https://tourismcenter.ge/wp-content/uploads/2022/07/Yamaha_Jupiter_Z1_Service_Manual.pdfIn PDF document text
    • http://uttaranchalcollege.com/wp-content/uploads/2022/07/Stealth_Attraction_Secret_Torrent_LINK.pdfIn PDF document text
    • https://www.rockportma.gov/sites/g/files/vyhlif1141/f/uploads/parking-shuttle_info_and_hours_2018.pdfIn PDF document text
    • https://workplace.vidcloud.io/social/upload/files/2022/07/7PnfhcosfkictlmGNfeD_06_76abdfaf2dab54e62f19a223828dc7ec_file.pdfIn PDF document text
    • https://www.vsv7.com/upload/files/2022/07/YrXPtgB1oGjnafhu6xK9_06_bf625585ed61aba237bf6718dc89ea7a_file.pdfIn PDF document text
    • https://flowonix.com/sites/default/files/webform/applications/figuras-literarias-del-poema-blason-de-ruben-dario.pdfIn PDF document text
    • https://cristianosencontacto.com/wp-content/uploads/2022/07/Proton_Basic_Compiler_Crack_HOT.pdfIn PDF document text
    • http://hotelthequeen.it/2022/07/06/realtek-11n-usb-wireless-lan-driver-utility-In PDF document text
    • https://www.marlowropes.com/system/files/webform/FSX--Turbine-Sound-Studios-In PDF document text
    • https://righttoexpress.com/upload/files/2022/07/vcBV7St6P47t3GhFyyB8_06_76abdIn PDF document text
    • https://www.kekogram.com/upload/files/2022/07/CsLED1kAno7ZtojaHR7M_06_bf62In PDF document text
    • https://startclube.net/upload/files/2022/07/r9eqblQi3WbNnLvDA2CH_06_bf625585eIn PDF document text
    • https://pes-sa.com/sites/default/files/webform/hd-online-player-sudhu-tomari-jonno-In PDF document text
    • https://www.realvalueproducts.com/sites/realvalueproducts.com/files/webform/scovIn PDF document text
    • https://tourismcenter.ge/wp-In PDF document text
    • http://uttaranchalcollege.com/wp-In PDF document text
    • https://www.rockportma.gov/sites/g/files/vyhlif1141/f/uploads/parking-In PDF document text
    • https://workplace.vidcloud.io/social/upload/files/2022/07/7PnfhcosfkictlmGNfeD_06_In PDF document text
    • https://www.vsv7.com/upload/files/2022/07/YrXPtgB1oGjnafhu6xK9_06_bf625585edIn PDF document text
    • https://flowonix.com/sites/default/files/webform/applications/figuras-literarias-del-In PDF document text
    • https://cristianosencontacto.com/wp-In PDF document text
    • http://mydrugdir.com/universities/guillen/acceded=mcdowell.meinck/nclb=zg93bmxvywr8b1cyywprm2nyedhnvfkxtnpbmk56rtfoshg4twpvm05iedhlrtbwsuhkbflxuxrzbxh2wnlcyljtrnpkq0jiulu1za.rgvzy2fyz2fyugx1z2lutwfza1bybzvqag90b3nob3bdczy2nejpdargv/In PDF document text
    • https://trello.com/c/FbiZGSgK/157-cwm6019-root-n7108tar-verifiedIn 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
font_00_sfnt_off00003dee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3DEE 84508 bytes
SHA-256: 2b7ba551bea82cc3307397981c1dbeb1b78486f95f2eb14e5e58d4e1b24edb0c
font_01_sfnt_off0000c5da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5DA 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261