Malicious PDF — malware analysis report

Static analysis result for SHA-256 44192d1fb80f9860…

MALICIOUS

PDF

134.3 KB Created: 2022-07-25 11:16:34 +00:00 Authoring application: kalmak (via PDF Master 1.0.1) First seen: 2026-05-05
MD5: fe5ebeab8c6746efd48437e894ee2e88 SHA-1: 29c31b1aa2396e1cdb49252e5a370d23f00cbd20 SHA-256: 44192d1fb80f98609a893c0b5e469b17269a64a7e61ed4ed65d80e73a3e49c8c
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://bestsmartfind.com/adner/U2FyZGltYW4gSW50ZXJha3NpIERhbiBNb3RpdmFzaSBCZWxhamFyIE1lbmdhamFyIFBkZiBEb3dubG9hZGdvbGtlcwU2F/maser.doris.escheat.leroux.ZG93bmxvYWR8TDJXWlRSbmJYeDhNVFkxT0RJeE9EazROWHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA/leyendecker.pcmark PDF link annotation
    • https://www.topperireland.com/advert/hussyfan-pthc-uvs2-jessica-christ-avi-download-torrent-checked-repack/In PDF document text
    • https://haulingreviews.com/wp-content/uploads/2022/07/micro_paver_65_software_81.pdfIn PDF document text
    • https://futurestrongacademy.com/wp-content/uploads/2022/07/PATCHED_MicrosoftVisioProfessional2013x86iNDiSO.pdfIn PDF document text
    • https://designpress.it/wp-content/uploads/2022/07/SmartFTP_Client_Enterprise_9027040_X64_Patch_Extra_Quality.pdfIn PDF document text
    • https://ourlittlelab.com/driverpack-solution-12-full-free-download-offline-11-repack/In PDF document text
    • https://www.caelmjc.com/wp-content/uploads/2022/07/Alberts_Easy_Activator_V05717_For_Tomtomzip.pdfIn PDF document text
    • http://stroiportal05.ru/advert/ih8sn0w-ireb-v3-1-2-for-windows-english-download-full/In PDF document text
    • https://bestasmrever.com/wp-content/uploads/2022/07/RStudio_812_Build_175721_Network_Technician_With_Fixed_Crack_Latest.pdfIn PDF document text
    • https://bodhibliss.org/analisis-e-interpretacion-de-estados-financieros-abraham-perdomo-moreno-pdf/In PDF document text
    • http://www.perfectlifestyle.info/cisco-anyconnect-profile-editor-download-exclusive/In PDF document text
    • https://qflash.es/iobit-smart-defrag-6-rc-v6-0-0-88-crack-better/In PDF document text
    • https://earthoceanandairtravel.com/2022/07/25/quickmark-v3-8-advanced-edition-exclusive/In PDF document text
    • https://aurespectdesoi.be/download-ultra-file-search-full-free-version/In PDF document text
    • https://shalamonduke.com/wp-content/uploads/2022/07/leissade.pdfIn PDF document text
    • https://consultation-allaitement-maternel.be/wp-content/uploads/2022/07/download_xforce_keygen_Advance_Steel_2017_portable.pdfIn PDF document text
    • http://texocommunications.com/wp-content/uploads/2022/07/Fraps_6512_LINK_Full_Cracked_2018_Crack.pdfIn PDF document text
    • https://www.locatii.md/wp-content/uploads/2022/07/lesarde.pdfIn PDF document text
    • https://paulinesafrica.org/turnflstudiodemotofullversion-patched/In PDF document text
    • https://www.vallemare.info/wp-content/uploads/2022/07/MAGIX_Music_Maker_2018_Premium_281454_Crack_download.pdfIn PDF document text
    • https://bromedistrict.com/rollercoaster-tycoon-world-deluxe-edition-download-for-pc-password-top/In PDF document text
    • https://www.topperireland.com/advert/hussyfan-pthc-uvs2-jessica-christ-avi-download-torrent-In PDF document text
    • https://futurestrongacademy.com/wp-In PDF document text
    • https://designpress.it/wp-In PDF document text
    • https://www.caelmjc.com/wp-In PDF document text
    • https://bestasmrever.com/wp-content/uploads/2022/07/RStudio_812_Build_175721_Network_TechniIn PDF document text
    • https://bodhibliss.org/analisis-e-interpretacion-de-estados-financieros-abraham-perdomo-moreno-In PDF document text
    • https://consultation-allaitement-maternel.be/wp-In PDF document text
    • http://texocommunications.com/wp-In PDF document text
    • https://www.vallemare.info/wp-In PDF document text
    • http://bestsmartfind.com/adner/u2fyzgltyw4gsw50zxjha3npierhbibnb3rpdmfzasbczwxhamfyie1lbmdhamfyifbkzibeb3dubg9hzgdvbgtlcwu2f/maser.doris.escheat.leroux.zg93bmxvywr8tdjxwlrsbmjyedhnvfkxt0rjee9eazrowhg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda/leyendecker.pcmarkIn PDF document text
    • http://texocommunications.com/wp-content/uploads/2022/07/fraps_6512_link_full_cracked_2018_crack.pdfIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_011_off00019c31.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x19C31 119072 bytes
SHA-256: df221e87b81d1531cafdadb6c09a602e9f604d1baf0a17bbd350cbb83baa06f7
font_00_sfnt_off00001ff7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1FF7 84648 bytes
SHA-256: 0b6c48f6a4e931a4572b13bb2af9ad514b0702ea3c747f8534c05d2c57946ed4
font_01_sfnt_off0000a85a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA85A 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261