Malicious PDF — malware analysis report

Static analysis result for SHA-256 3eb3c35d4778aae4…

MALICIOUS

PDF

135.3 KB Created: 2022-09-11 15:24:07 +00:00 Authoring application: ivolett (via PDF Master 1.0.1) First seen: 2026-05-02
MD5: db4b8bc66a41de4f7227774c9a2d33e2 SHA-1: e958cfbd9deb7e914974bab40762ce2d3e5d053e SHA-256: 3eb3c35d4778aae4ce83b307bd26503d4f5d586a973816c7d296dc9bd9da5725
229 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0006

Heuristics 8

  • 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 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 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.
  • 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.
  • PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • 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://awarefinance.com/SWNlIEFnZTogQ29sbGlzaW9uIENvdXJzZSAoRW5nbGlzaCkgMTA4MHAgdGFtaWwgZHViYmVkIG1vdmllSWN/desensitization/leter/hofmann?ZG93bmxvYWR8NlBwZWpCb1lYeDhNVFkyTWpZNE1ETTVNSHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA.umber.jogger PDF link annotation
    • http://historyfootsteps.net/audio-damage-dr-device-1-0-vst-patched-keygenl/In PDF document text
    • https://gyllendal.com/wp-content/uploads/2022/09/Shinobi_Girl_205_Rar.pdfIn PDF document text
    • https://ourlittlelab.com/need-for-speed-rivals-crack-only-3dml-repack/In PDF document text
    • https://phatdigits.com/wp-content/uploads/2022/09/Download_Fear_Files_English_Subt_BETTER.pdfIn PDF document text
    • https://staging.sonicscoop.com/advert/seafight-bot-program-__exclusive__-download/In PDF document text
    • http://joshuatestwebsite.com/velamma-episode-6-pdf-free-download-link/In PDF document text
    • https://savosh.com/wp-content/uploads/2022/09/Matlab_R2010b_EXCLUSIVE_Crack_Keygen_Website.pdfIn PDF document text
    • https://hhinst.com/advert/catia-v5r20-64-bit-js0group-dll-top-download/In PDF document text
    • https://leidenalumni.id/wp-content/uploads/2022/09/Terjemahan_Minhajul_Qashidinpdf_2021.pdfIn PDF document text
    • http://debbiejenner.nl/sunplustoolver15freedownload-install/In PDF document text
    • https://xtc-hair.com/hum-dil-de-chuke-sanam-movie-hindi-dubbed-mp4-hd-extra-quality-download/In PDF document text
    • http://adomemorial.com/2022/09/11/spikespen-mother-son-temptation-7-wmv/In PDF document text
    • http://berlin-property-partner.com/?p=53103In PDF document text
    • https://taranii-dobrogeni.ro/livro-reiki-essencial-diane-stein-em-portugues-new/In PDF document text
    • https://www.riobrasilword.com/2022/09/11/nemetschek-allplan-2016-crack-the-ginter-link/In PDF document text
    • https://beautyprosnearme.com/wp-content/uploads/2022/09/DEMUL056ARCADEROMSPackepub.pdfIn PDF document text
    • https://smish.me/wp-content/uploads/2022/09/Terjemahantafsiralmanarpdf.pdfIn PDF document text
    • http://srilankapropertyhomeandland.com/wp-content/uploads/2022/09/New_Cube_Iq_4_Crack_Full_29.pdfIn PDF document text
    • https://liquidonetransfer.com/wp-content/uploads/2022/09/shuddh_desi_romance_movie_download_in_hd_16.pdfIn PDF document text
    • http://newsafrica.world/?p=66478In PDF document text
    • https://phatdigits.com/wp-In PDF document text
    • https://savosh.com/wp-In PDF document text
    • https://leidenalumni.id/wp-In PDF document text
    • https://xtc-hair.com/hum-dil-de-chuke-sanam-movie-hindi-dubbed-mp4-hd-extra-quality-In PDF document text
    • https://beautyprosnearme.com/wp-In PDF document text
    • http://srilankapropertyhomeandland.com/wp-In PDF document text
    • https://liquidonetransfer.com/wp-In PDF document text
    • http://srilankapropertyhomeandland.com/wp-content/uploads/2022/09/new_cube_iq_4_crack_full_29.pdfIn PDF document text
    • http://awarefinance.com/swnliefnztogq29sbglzaw9uienvdxjzzsaorw5nbglzackgmta4mhagdgftawwgzhviymvkig1vdmllswn/desensitization/leter/hofmann?zg93bmxvywr8nlbwzwpcb1lyedhnvfkytwpzne1ettvnshg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda.umber.joggerIn 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_off00003f1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F1E 84508 bytes
SHA-256: 2b7ba551bea82cc3307397981c1dbeb1b78486f95f2eb14e5e58d4e1b24edb0c
font_01_sfnt_off0000c70a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC70A 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261