Malicious PDF — malware analysis report

Static analysis result for SHA-256 b49928a12006f5c9…

MALICIOUS

PDF

113.8 KB Created: 2022-07-28 15:11:34 +00:00 Authoring application: fedbib (via PDF Master 1.0.1) First seen: 2026-05-02
MD5: 962b85232299c039f8cdd88496ae5035 SHA-1: 4f2d45ed66717ebd760efe0fd9a56c27e26306e6 SHA-256: b49928a12006f5c966a4d7476cc30aa2efa96caed8904bf6e0c02ff6e22a0c4c
264 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 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://mydrugdir.com/accents/neverland=desperately/UkEgQmVhdXR5IFJldG91Y2ggUGFuZWwgdjMuMCBQaXhlbCBKdWdnbGVyIGZvciBQaG90b3Nob3AgQ1M2IC0gQ0MgMjAxNSA0MgUkE=indiscriminate/nagin=svesda./ZG93bmxvYWR8Q1o1Y1hOaU0zeDhNVFkxT0RJeE9UUTNNM3g4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA= PDF link annotation
    • https://belz-elektromagie.de/2022/07/28/flexisign-pro-76-v2-hardware-key-crack-repack/In PDF document text
    • http://kolatia.com/?p=22522In PDF document text
    • https://longitude123.net/wp-content/uploads/2022/07/FULL_Canon_Pixma_Mp145_Scanner_Driver_HOT.pdfIn PDF document text
    • https://fitadina.com/wp-content/uploads/2022/07/antamo.pdfIn PDF document text
    • https://aapanobadi.com/2022/07/28/callofduty111wallhackaimbotradarcheat/In PDF document text
    • https://www.shiva-cbd.de/wp-content/uploads/Vcds_Lite_12_Crack_NEW.pdfIn PDF document text
    • https://sillageparfumerie.com/wp-content/uploads/2022/07/Facerigfreedownload_2021.pdfIn PDF document text
    • https://theramedkids.com/wp-content/uploads/2022/07/NEW_Download_Jogos_Ps3_Pkg-1.pdfIn PDF document text
    • https://shobeklobek.com/fsps-fsx-booster-v4-new/In PDF document text
    • https://latinon.com/take-off-malayalam-movie-mp3-songs-download-__exclusive__/In PDF document text
    • https://www.dominionphone.com/magic-desktop-9-5-0-214-crack-license-key-2020-top/In PDF document text
    • https://outdoormingle.com/wp-content/uploads/2022/07/alefron.pdfIn PDF document text
    • http://yourtripboy.com/?p=19027In PDF document text
    • https://bmanadvocacy.org/wp-content/uploads/2022/07/thornar.pdfIn PDF document text
    • http://thai-news.net/?p=27472In PDF document text
    • https://conversietopper.nl/no-cair-da-noite-2003-dvdrip-dublado-fixed/In PDF document text
    • https://arlingtonliquorpackagestore.com/boilsoft-video-splitter-v6-33-build-155-regged-ind-download-pc-fix/In PDF document text
    • https://gamelyss.com/wp-content/uploads/2022/07/Autodata_338_Download_Ita_torrent.pdfIn PDF document text
    • http://1room.dk/wp-content/uploads/2022/07/balevon.pdfIn PDF document text
    • https://longitude123.net/wp-In PDF document text
    • https://arlingtonliquorpackagestore.com/boilsoft-video-splitter-v6-33-build-155-regged-ind-download-In PDF document text
    • http://mydrugdir.com/accents/neverland=desperately/ukegqmvhdxr5ifjldg91y2ggugfuzwwgdjmumcbqaxhlbcbkdwdnbgvyigzvcibqag90b3nob3agq1m2ic0gq0mgmjaxnsa0mguke=indiscriminate/nagin=svesda./zg93bmxvywr8q1o1y1hoau0zedhnvfkxt0rjee9uutnnm3g4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda=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_off0000191b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x191B 84508 bytes
SHA-256: 2b7ba551bea82cc3307397981c1dbeb1b78486f95f2eb14e5e58d4e1b24edb0c
font_01_sfnt_off0000a107.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA107 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261