Malicious PDF — malware analysis report

Static analysis result for SHA-256 18a25e9855d2ceac…

MALICIOUS

PDF

121.2 KB Created: 2022-07-25 14:33:37 +00:00 Authoring application: yancry (via PDF Master 1.0.1) First seen: 2026-05-10
MD5: 67cb7fdef550a03a57b84bb881e4ad4c SHA-1: 862e506025fc865e8e9bc369a12c146aa0d4ff0e SHA-256: 18a25e9855d2ceac5a2ea94738a0c5fbbe85e13229d4ee0ff15a3e4a580a7f9d
224 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0023

Heuristics 7

  • 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.
  • 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://lehmanbrotherbankruptcy.com/ethoxylated/hvac.ZG93bmxvYWR8RHYyYVRSamVYeDhNVFkxT0RJeE9EazROWHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA/ketone/fibers.Q2l2aWwzRDIwMTF4Zm9yY2VrZXlnZW42NGJpdAQ2l PDF link annotation
    • https://yemensouq.com/wp-content/uploads/2022/07/Wondershare_Video_Converter_Ultimate_101_Crack_Key_Free_Here.pdfIn PDF document text
    • http://www.teploobmenka.ru/advert/teploobmennik-titanovyj/In PDF document text
    • https://santoshkpandey.com/wp-content/uploads/2022/07/arcdar.pdfIn PDF document text
    • https://offdq.com/2022/07/25/vanavil-tamil-software-7-0-crack-new/In PDF document text
    • https://www.bg-frohheim.ch/bruederhofweg/advert/solvermedia-123-tpv-net-2013-free-crack/In PDF document text
    • http://mysquare.in/?p=In PDF document text
    • https://riosessions.com/web/winning-eleven-8-free-download-full-high-quality-version-for-pc/8427/In PDF document text
    • https://premierfitnessstore.com/wp-content/uploads/2022/07/Keygen_xf_AutoCAD_Mechanical_2016_x32_exe.pdfIn PDF document text
    • https://brandyallen.com/2022/07/25/cakewalk-sonar-8-serial-number-registration-code-upd/In PDF document text
    • https://festivaldelamor.org/skylanders-no-cd-crack-pc-top/In PDF document text
    • https://ourcrazydeals.com/wp-content/uploads/2022/07/City_Car_Driving_15_Keygen.pdfIn PDF document text
    • http://getloansmart.com/wp-content/uploads/2022/07/artisteer_4_Crack_serial_keygen.pdfIn PDF document text
    • https://www.clearlakewi.com/wp-content/uploads/2022/07/Wolf_Quest_27_Free_Download_LINK_Full_Versioninstmanksgolkesl.pdfIn PDF document text
    • http://robinzoniya.ru/?p=31226In PDF document text
    • https://208whoisgreat.com/wp-content/uploads/2022/07/xforce_keygen_AutoCAD_Plant_3D_2011_64_bit_download.pdfIn PDF document text
    • https://survivalistprepping.com/internet-businessseo/super-pose-book-free-958-free/In PDF document text
    • https://papayu.co/vijeo-designer-6-2-crack-license-23-full/In PDF document text
    • https://asuperlist.com/wp-content/uploads/2022/07/Cadpower_2008_64bit_LINK.pdfIn PDF document text
    • https://www.sindmppr.org/wp-content/uploads/2022/07/Etka_7_Update_598__622_64_Bit.pdfIn PDF document text
    • http://avc-mx.com/wp-content/uploads/2022/07/Kamen_Rider_Decade_Flash_REPACK.pdfIn PDF document text
    • https://yemensouq.com/wp-content/uploads/2022/07/Wondershare_Video_ConverterIn PDF document text
    • https://www.bg-frohheim.ch/bruederhofweg/advert/solvermedia-123-tpv-In PDF document text
    • https://riosessions.com/web/winning-eleven-8-free-download-full-high-quality-version-In PDF document text
    • https://premierfitnessstore.com/wp-In PDF document text
    • https://brandyallen.com/2022/07/25/cakewalk-sonar-8-serial-number-registration-In PDF document text
    • https://ourcrazydeals.com/wp-In PDF document text
    • http://getloansmart.com/wp-In PDF document text
    • https://www.clearlakewi.com/wp-content/uploads/2022/07/Wolf_Quest_27_Free_DowIn PDF document text
    • https://208whoisgreat.com/wp-content/uploads/2022/07/xforce_keygen_AutoCAD_PlIn PDF document text
    • https://www.sindmppr.org/wp-In PDF document text
    • http://avc-mx.com/wp-In PDF document text
    • http://lehmanbrotherbankruptcy.com/ethoxylated/hvac.zg93bmxvywr8rhyyyvrsamvyedhnvfkxt0rjee9eazrowhg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda/ketone/fibers.q2l2awwzrdiwmtf4zm9yy2vrzxlnzw42ngjpdaq2lIn PDF document text
    • http://getloansmart.com/wp-content/uploads/2022/07/artisteer_4_crack_serial_keygen.pdfIn 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_off00002703.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2703 85508 bytes
SHA-256: 0b5e33d3fc95c9fb95686c25b93d9dd42644882b84771d8d9a057a9b7d02d2c0
font_01_sfnt_off0000b1d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB1D4 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261