Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6e9d27c8a64390c…

MALICIOUS

PDF

121.9 KB Created: 2022-07-04 08:54:15 +00:00 Authoring application: vinhol (via PDF Master 1.0.1) First seen: 2026-05-17
MD5: 145415d5f54bbcc60864b86322e0a237 SHA-1: bf936c8a9d2cc60cf806b55e894a3a946136cdf0 SHA-256: b6e9d27c8a64390c2fc652230f09e23778b41ed2e4535a89f5465eefcd04e4f3
264 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0088

Heuristics 9

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • Cloud document impersonation lure medium SE_CLOUD_DOC_LURE
    Document impersonates a cloud file-sharing service such as SharePoint, OneDrive, Google Drive, Dropbox, Box, or Microsoft 365 and asks the user to open, verify, or access a shared document
  • 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://hardlyfind.com/barockmuseum/discolors.embed/capalletti/geetha/ZG93bmxvYWR8bFAzWkRFMmNYeDhNVFkxTmpnNU1qTTFNbng4TWpVNE4zeDhLRTBwSUVobGNtOXJkU0JiUm1GemRDQkhSVTVk/Tm9ybWFuIE1hbHdhcmUgQ2xlYW5lcgTm9/ramps PDF link annotation
    • https://social.halvsie.com/upload/files/2022/07/DywLraN8aM4z4GE34HNZ_04_1e245e8a0800e9fb9df722e7ed9e5a37_file.pdfIn PDF document text
    • https://eyeglobe.org/wp-content/uploads/2022/07/WinAIO_Maker_Professional.pdfIn PDF document text
    • https://mitiflowers.com/d-fend-reloaded-2018-crack-free-updated-2022/In PDF document text
    • https://virtudojo.com/wp-content/uploads/2022/07/Advanced_Time_Reports_Web_Premier.pdfIn PDF document text
    • https://instafede.com/cleanshot-3-8-1-crack-download-for-windows/In PDF document text
    • https://scoalacunoasterii.ro/wp-content/uploads/2022/07/Windows_Live_Messenger_Crack.pdfIn PDF document text
    • https://www.sintemar.com/sites/default/files/webform/sharabun152.pdfIn PDF document text
    • https://iwasacrookedlawyer.com/uncategorized/real-time-iris-identification-download-for-windows-2022-new/In PDF document text
    • https://everynon.com/01-computer-and-folder-2022-2/In PDF document text
    • https://gitess.com/wp-content/uploads/2022/07/Mouse_Debouncer.pdfIn PDF document text
    • http://cyclades.in/en/?p=88747In PDF document text
    • https://it-sbo.com/wp-content/uploads/2022/07/GS_Typing_Tutor.pdfIn PDF document text
    • https://lustrousmane.com/copy-file-path-crack-license-key-free-x64-updated/In PDF document text
    • http://shaeasyaccounting.com/gold-price-free-download-for-windows-april-2022/In PDF document text
    • http://www.tampabestplaces.com/wp-content/uploads/2022/07/ParticleDraw.pdfIn PDF document text
    • http://cyclades.in/en/?p=88748In PDF document text
    • http://nextgenbioproducts.com/?p=19499In PDF document text
    • https://www.raven-guard.info/fonthit-font-tools-15-5-0-26-crack-free-download/In PDF document text
    • https://www.wilsonvilleparksandrec.com/system/files/webform/ulriibra396.pdfIn PDF document text
    • https://social.halvsie.com/upload/files/2022/07/DywLraN8aM4z4GE34HNZ_04_1e245e8a080In PDF document text
    • https://virtudojo.com/wp-In PDF document text
    • https://scoalacunoasterii.ro/wp-In PDF document text
    • https://iwasacrookedlawyer.com/uncategorized/real-time-iris-identification-download-for-In PDF document text
    • http://hardlyfind.com/barockmuseum/discolors.embed/capalletti/geetha/zg93bmxvywr8bfazwkrfmmnyedhnvfkxtmpnnu1qttfnbng4twpvne4zedhlrtbwsuvobgntoxjku0jium1gemrdqkhsvtvk/tm9ybwfuie1hbhdhcmugq2xlyw5lcgtm9/rampsIn PDF document text
    • https://wakelet.com/wake/SR7-za0DQ4dZFNJ6DEEW-In 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_off00003668.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3668 84508 bytes
SHA-256: 2b7ba551bea82cc3307397981c1dbeb1b78486f95f2eb14e5e58d4e1b24edb0c
font_01_sfnt_off0000be54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE54 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261