Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0ec4b30b4154c94…

MALICIOUS

PDF

142.1 KB Created: 2022-07-25 14:46:44 +00:00 Authoring application: khalosw (via PDF Master 1.0.1) First seen: 2026-05-02
MD5: e36f1ee273d7ef7ed758e229587a5914 SHA-1: fadee06858ab40fc0840f379b78c53a23cf1823b SHA-256: e0ec4b30b4154c9458eddca40ebaa8404204be657f2d2da4e7eb53790163e388
264 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0005

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 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 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.
  • 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://xtraserp.com/semi/femtosecond/areolae/geriatric/perlee/rickettsia/sketching=ZG93bmxvYWR8NW1CYVdWak1YeDhNVFkxT0RJeE9EazROWHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA.Q2FkIENhbSBCeSBJYnJhaGltIFplaWQgUGRmIEZyZWUgRG93bmxvYWQQ2F PDF link annotation
    • https://ssmecanics.com/multi-page-tiff-editor-2-1-keygen-__full__-24l/In PDF document text
    • http://www.giffa.ru/who/dil-toh-dewaana-hai-in-hindi-720p-download-_hot_/In PDF document text
    • https://www.filmwritten.org/?p=30164In PDF document text
    • https://worldweathercenter.org/parallels-desktop-14-activation-key-serials-crack-full-link/In PDF document text
    • https://sourceshop.org/wp-content/uploads/2022/07/Edraw_Max_6_Portable_download.pdfIn PDF document text
    • http://theinspirationseekers.com/getdata-graph-digitizer-223-crack-_best_/In PDF document text
    • http://cursodeeletricista.com/wp-content/uploads/2022/07/Gp69_Medical_Form_Kenya_Pdf_Free_BEST.pdfIn PDF document text
    • https://zolixplorer.com/wp-content/uploads/2022/07/LINK_Free_Download_LINK_Freegate_8.pdfIn PDF document text
    • https://startpointsudan.com/index.php/2022/07/25/kuch-kuch-hota-hai-movie-in-tamil-work-free-download/In PDF document text
    • https://ratucnc.com/adobe-acrobat-xi-pro-19-0-20-final-crack-free-__link__-download/In PDF document text
    • http://ooouptp.ru/xforcekeygen-top-sketchbookpro201532bitwindows7-127987-65039/In PDF document text
    • https://unsk186.ru/baixarfilmeafestadebabettedublado/In PDF document text
    • https://thecryptobee.com/aaina-indian-full-movie-on-dailymotion-exclusive/In PDF document text
    • https://www.praxisforum-online.de/wp-content/uploads/2022/07/Competitive_Programming_2_By_Steven_Halim_Pdfepub.pdfIn PDF document text
    • https://www.icmgpartners.com/wp-content/uploads/2022/07/Assassins_Creed_4_Flota_Kenway_Crack.pdfIn PDF document text
    • https://royalbeyouty.com/2022/07/25/honda-crome-pro-cracked/In PDF document text
    • http://madshadowses.com/download-gold-miner-vegas-full-__hot__-version-13/In PDF document text
    • https://4v87.com/wrong-turn-2-hindi-dubbed-avi-free-download/In PDF document text
    • http://dichvuhoicuoi.com/elementos-basicos-del-derecho-mercantil-alfredo-de-la-cruz-gamboa-pdf-rar/In PDF document text
    • https://touky.com/unanghakbangsapagbasapdf29-portable/In PDF document text
    • https://worldweathercenter.org/parallels-desktop-14-activation-key-serials-In PDF document text
    • https://sourceshop.org/wp-In PDF document text
    • http://cursodeeletricista.com/wp-In PDF document text
    • https://zolixplorer.com/wp-In PDF document text
    • https://startpointsudan.com/index.php/2022/07/25/kuch-kuch-hota-hai-In PDF document text
    • https://ratucnc.com/adobe-acrobat-xi-pro-19-0-20-final-crack-In PDF document text
    • http://ooouptp.ru/xforcekeygen-top-In PDF document text
    • https://www.praxisforum-online.de/wp-content/uploads/2022/07/CompetitivIn PDF document text
    • https://www.icmgpartners.com/wp-In PDF document text
    • http://madshadowses.com/download-gold-miner-vegas-In PDF document text
    • http://dichvuhoicuoi.com/elementos-basicos-del-derecho-mercantil-alfredo-In PDF document text
    • http://xtraserp.com/semi/femtosecond/areolae/geriatric/perlee/rickettsia/sketching=zg93bmxvywr8nw1cyvdwak1yedhnvfkxt0rjee9eazrowhg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda.q2fkienhbsbcesbjynjhagltifplawqgugrmiezyzwugrg93bmxvywqq2fIn 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_off000036e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36E9 84508 bytes
SHA-256: 2b7ba551bea82cc3307397981c1dbeb1b78486f95f2eb14e5e58d4e1b24edb0c
font_01_sfnt_off0000bed5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBED5 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261