Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd33f1dab29eacf1…

MALICIOUS

PDF

111.2 KB Created: 2022-10-16 05:54:38 +00:00 Authoring application: birhara (via PDF Master 1.0.1) First seen: 2024-01-03
MD5: 169572da3734db8920c73f97efd5cb94 SHA-1: aeb63153d447e55e46dd7ad76a9de9472136dc0a SHA-256: fd33f1dab29eacf15c36aae2e0ba9149e458e72cb54ec454e866be5137c75e03
164 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0015

Heuristics 5

  • 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.
  • 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.
  • 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://dormister.com/sleepworkplay/annapuma.bowlin?bHVtaW9uIDIuNSBjcmFjayBvbmx5bHV=golly&essences=hades==&plateau=ZG93bmxvYWR8aEIzZGpGamFueDhNVFkyTlRjek16ZzBNWHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA PDF link annotation
    • http://fabianozan.com/?p=26874In PDF document text
    • https://unimedbeauty.com/vso-convertxtodvd-3-8-0-193-work-keygen-serial-key/In PDF document text
    • https://elysone.com/wp-content/uploads/2022/10/Learn_Next_Software_Product_Key_Free_Downloadrar_UPD.pdfIn PDF document text
    • https://alumbramkt.com/the-polar-express-movie-online-repack-free-download/In PDF document text
    • https://mondetectiveimmobilier.com/2022/10/16/life-elementary-a2-pdf-73-new-2/In PDF document text
    • https://qeezi.com/advert/silent-hunter-5-battle-of-the-atlantic-skidrow-iso-v1-1-patch-upd-download/In PDF document text
    • http://match2flame.com/kmspico-11-2-9-final-portable-office-and-windows-10-activator/In PDF document text
    • https://fotofables.com/wp-content/uploads/2022/10/3d_analyzer_latest_version_free_download_for_windows_7_32bit.pdfIn PDF document text
    • https://geezfamily.com/wp-content/uploads/2022/10/BlazingToolsPerfectKeyloggerRemoteEditionv193InclKeygen_Full_Version_TOP.pdfIn PDF document text
    • https://nakvartire.com/wp-content/uploads/2022/10/roszon.pdfIn PDF document text
    • https://elysone.com/wp-In PDF document text
    • https://fotofables.com/wp-In PDF document text
    • https://geezfamily.com/wp-content/uploads/2022/10/BlazingToolsPerfectKeyloggerRemoteEditionv19In PDF document text
    • http://dormister.com/sleepworkplay/annapuma.bowlin?bhvtaw9uidiunsbjcmfjaybvbmx5bhv=golly&essences=hades==&plateau=zg93bmxvywr8aeizzgpgamfuedhnvfkytlrjek16zzbnwhg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbdaIn 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

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000017ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17EC 84508 bytes
SHA-256: 2b7ba551bea82cc3307397981c1dbeb1b78486f95f2eb14e5e58d4e1b24edb0c
font_01_sfnt_off00009fd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9FD8 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261

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