Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bc81dd1cb367008…

MALICIOUS

PDF

121.0 KB Created: 2022-07-04 02:43:15 +00:00 Authoring application: tiabere (via PDF Master 1.0.1) First seen: 2026-05-20
MD5: 0f7aa9bb6ee7cfeae488487a515accb1 SHA-1: 09b76b60e7c9b1d08903ca43203a2217d783b5e1 SHA-256: 3bc81dd1cb367008fbd8093fff2b352ae176368c50f051155d8d319a19d4c2a1
224 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0006

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://emailgoal.com/backhealthpro/leans/oozed.sherbak.TWFydCBEaWN0aW9uYXJ5TWF.taylor/trop?unglazed=ZG93bmxvYWR8S1gyTkRjd2QzeDhNVFkxTmpnNU1qTTFNbng4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA PDF link annotation
    • https://www.divinejoyyoga.com/wp-content/uploads/2022/07/goofit.pdfIn PDF document text
    • https://360.com.ng/upload/files/2022/07/aj7YSTwEm62EMDdJoiRY_04_777a4757dacff7aec692e52e37ba39e0_file.pdfIn PDF document text
    • https://geto.space/upload/files/2022/07/TdiNM1jUnetxlmdURoDk_04_777a4757dacff7aec692e52e37ba39e0_file.pdfIn PDF document text
    • https://atennis.kz/tour/upload/files/2022/07/JPTcrOw6zAZHJ9hBxBvm_04_777a4757dacff7aec692e52e37ba39e0_file.pdfIn PDF document text
    • https://www.shankari.net/wp-content/uploads/2022/07/forfarr.pdfIn PDF document text
    • https://4s71.com/mindforger-crack-free-download-april-2022/In PDF document text
    • https://www.voyavel.it/xfire-password-decryptor-license-key-free-for-pc-latest-2022/In PDF document text
    • https://attitude.ferttil.com/upload/files/2022/07/2BOLqSrc6n1H7QQRbq6j_04_777a4757dacff7aec692e52e37ba39e0_file.pdfIn PDF document text
    • https://www.voyavel.it/gamesavebackup-5-5-15-0-crack-3264bit-updated/In PDF document text
    • https://egypt-aquarium.com/advert/free-pdf-to-jpg-converter-crack-keygen-full-version-download/In PDF document text
    • https://www.latablademultiplicar.com/?p=8701In PDF document text
    • http://wendypthatsme.com/?p=7523In PDF document text
    • https://xtc-hair.com/wp-content/uploads/2022/07/Any_File_Remover.pdfIn PDF document text
    • https://rwix.ru/speed-test-internet-crack-free-registration-code-free-for-pc-final-2022.htmlIn PDF document text
    • https://acsa2009.org/advert/notes-organizer-deluxe-crack-incl-product-key-download-win-mac/In PDF document text
    • https://mandarinrecruitment.com/system/files/webform/showfreespace.pdfIn PDF document text
    • http://empresswebdesigner.com/?p=1393In PDF document text
    • https://predictionboard.com/upload/files/2022/07/8Wzuk5iTm92C8DE7RsZf_04_777a4757dacff7aec692e52e37ba39e0_file.pdfIn PDF document text
    • https://360.com.ng/upload/files/2022/07/aj7YSTwEm62EMDdJoiRY_04_777a4757dacff7aec692e52e37ba39eIn PDF document text
    • https://geto.space/upload/files/2022/07/TdiNM1jUnetxlmdURoDk_04_777a4757dacff7aec692e52e37ba39e0In PDF document text
    • https://atennis.kz/tour/upload/files/2022/07/JPTcrOw6zAZHJ9hBxBvm_04_777a4757dacff7aec692e52e37ba3In PDF document text
    • https://attitude.ferttil.com/upload/files/2022/07/2BOLqSrc6n1H7QQRbq6j_04_777a4757dacff7aec692e52e3In PDF document text
    • https://predictionboard.com/upload/files/2022/07/8Wzuk5iTm92C8DE7RsZf_04_777a4757dacff7aec692e52eIn PDF document text
    • http://emailgoal.com/backhealthpro/leans/oozed.sherbak.twfydcbeawn0aw9uyxj5twf.taylor/trop?unglazed=zg93bmxvywr8s1gytkrjd2qzedhnvfkxtmpnnu1qttfnbng4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbdaIn PDF document text
    • https://spacezozion.nyc3.digitaloceanspaces.com/upload/files/2022/07/TbnguxnnRme6O58FIUYz_04_777a4757dacff7aec692e52e37ba39e0_file.pdfIn PDF document text
    • http://urblinphar.yolasite.com/resources/Simple-Numerical-Methods-Calculator--Crack--Download-2022.pdfIn PDF document text
    • http://www.tcpdf.orgIn PDF document text
    • https://spacezozion.nyc3.digitaloceanspaces.com/upload/files/2022/07/TbnguxnnRme6O58FIUYz_04_777a4In 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
    • http://urblinphar.yolasite.com/resources/simple-numerical-methods-calculator--crack--download-2022.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E48 84508 bytes
SHA-256: 2b7ba551bea82cc3307397981c1dbeb1b78486f95f2eb14e5e58d4e1b24edb0c
font_01_sfnt_off0000b634.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB634 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261