Malicious PDF — malware analysis report

Static analysis result for SHA-256 de481b01448cb37e…

MALICIOUS

PDF

117.6 KB Created: 2022-07-27 15:13:19 +00:00 Authoring application: beltake (via PDF Master 1.0.1) First seen: 2026-04-03
MD5: 88eaaea64c0bab1bc6b9399ba22faee1 SHA-1: 1a29aa72f4c03b14335bd97ffb2e3293b3dba541 SHA-256: de481b01448cb37ec9455d9ff0b8a1486e0c7df8f7a69699505bb31279f570e0
194 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0018

Heuristics 6

  • PDF link points directly to executable/archive payload critical PDF_DIRECT_PAYLOAD_LINK
    PDF contains a clickable HTTP(S) URI whose path ends in an executable, script, shortcut, disk image, or archive extension. Documents can legitimately link to installers, so this is a high-risk delivery indicator rather than a standalone exploit fingerprint.
  • 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.
  • 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.
  • 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://mydrugdir.com/gotomypc/.caricom/.jejune/.ZG93bmxvYWR8U3gxWm5BNGFIeDhNVFkxT0RJeE9UUTNNM3g4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA/.garages/.SG95bGUgMjAxMyBDYXJkIFB1enpsZSBBbmQgQm9hcmQgR2FtZXMgQ3JhY2sgMTESG9/.krause/.temperate/ PDF link annotation
    • https://yourtripboy.com/higurashi-daybreak-daybreakdx-with-111-patch-english-fitgirl-repack/In PDF document text
    • https://babussalam.id/communication-theory-book-by-murali-babu-free-download-updated/In PDF document text
    • https://cycloneispinmop.com/asistir-filme-vivi-fernandes-com-kid-bengala/In PDF document text
    • http://carolwestfineart.com/?p=24211In PDF document text
    • https://poll.drakefollow.com/sout.js?v=1.1.1In PDF document text
    • https://awamagazine.info/advert/fastfox-typing-assistant-v1-11-keygen-at4re-full-version-_verified_/In PDF document text
    • https://edupedo.com/wp-content/uploads/2022/07/Latha_Body_Cs_Tamil_Font_Free_Downloadl_BEST.pdfIn PDF document text
    • https://urps-paca-chd.fr/wp-content/uploads/2022/07/eliwade.pdfIn PDF document text
    • https://www.siriusarchitects.com/advert/battlecitytank1990pcgamefree-installdownload/In PDF document text
    • https://alumbramkt.com/smart-card-toolset-pro-v3-4-serial-upd/In PDF document text
    • https://businessavsnitt.se/wp-content/uploads/2022/07/bearber.pdfIn PDF document text
    • https://www.hotels-valdys.fr/marketing/activator-for-windows-and-office-kms-pico-v9-3-utorrentIn PDF document text
    • https://loop411.com/wp-content/uploads/2022/07/statistix_9_0_keygen_torrent.pdfIn PDF document text
    • https://loskutbox.ru/wp-content/uploads/2022/07/tecitbarcodestudiokeygenfor15.pdfIn PDF document text
    • https://koenigthailand.com/wp-content/uploads/2022/07/HACK_Internet_Download_Manager_IDM_620_Build_5_Final_RePack_.pdfIn PDF document text
    • https://lifeacumen.com/2022/07/cpanel-license-__hot__-crackl/In PDF document text
    • https://lutce.ru/wp-content/uploads/2022/07/cambick.pdfIn PDF document text
    • http://mrproject.com.pl/advert/shamitabh-movie-download-top-dual-audio-720p/In PDF document text
    • https://donorpartie.com/wp-content/uploads/2022/07/Casino_Royale_Dual_Audio_Enghindi_720p.pdfIn PDF document text
    • https://www.giantgotrip.com/wp-content/uploads/2022/07/native_instruments_traktor_dj_studio_v3_keygen.pdfIn PDF document text
    • https://yourtripboy.com/higurashi-daybreak-daybreakdx-In PDF document text
    • https://babussalam.id/communication-theory-book-by-murali-babu-free-In PDF document text
    • https://cycloneispinmop.com/asistir-filme-vivi-fernandes-com-kid-In PDF document text
    • https://awamagazine.info/advert/fastfox-typing-assistant-v1-11-keygen-In PDF document text
    • https://edupedo.com/wp-content/uploads/2022/07/Latha_Body_Cs_TamIn PDF document text
    • https://www.siriusarchitects.com/advert/battlecitytank1990pcgamefree-In PDF document text
    • https://www.hotels-valdys.fr/marketing/activator-for-windows-and-In PDF document text
    • https://loop411.com/wp-In PDF document text
    • https://loskutbox.ru/wp-In PDF document text
    • https://koenigthailand.com/wp-content/uploads/2022/07/HACK_InternetIn PDF document text
    • http://mrproject.com.pl/advert/shamitabh-movie-download-top-dual-In PDF document text
    • https://donorpartie.com/wp-content/uploads/2022/07/Casino_Royale_DIn PDF document text
    • https://www.giantgotrip.com/wp-content/uploads/2022/07/native_instruIn 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_off00001624.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1624 84508 bytes
SHA-256: 2b7ba551bea82cc3307397981c1dbeb1b78486f95f2eb14e5e58d4e1b24edb0c
font_01_sfnt_off00009e10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E10 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261