Malicious PDF — malware analysis report

Static analysis result for SHA-256 8092906f1a7a1f3c…

MALICIOUS

PDF

126.3 KB Created: 2022-07-01 02:03:49 +02:00 Authoring application: nisnar (via PDF Master 1.0.1) First seen: 2026-04-01
MD5: 67f5a2a2d93763038b9b32837c1760d8 SHA-1: 5a51c414d8d3934645ba54931e7a096e13cadfd4 SHA-256: 8092906f1a7a1f3c7b3082dd6293a6c51af0c8a9df181966970cfbc4a881dce5
264 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0274

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://emailgoal.com/helobacter.anodizing?facilitator=glickman&overselling&QWRvYmUgUGhvdG9zaG9wIDIwMjIgKFZlcnNpb24gMjMuMSkQWR=gmail&ZG93bmxvYWR8SU02WVRneFpueDhNVFkxTmpZd05ESTNOSHg4TWpVM05IeDhLRTBwSUhKbFlXUXRZbXh2WnlCYlJtRnpkQ0JIUlU1ZA=surviving PDF link annotation
    • http://papyrefb.online/?p=7462In PDF document text
    • https://sipepatrust.org/photoshop-cs3-product-key-3264bit/In PDF document text
    • https://ilsignoredicampagna.it/wp-content/uploads/2022/07/Adobe_Photoshop_CC_2018_Version_19_Install_Crack__Keygen_Full_Version_Latest_2022.pdfIn PDF document text
    • https://www.neoneslowcost.com/wp-content/uploads/2022/07/Adobe_Photoshop_CC_2015_Version_17_Keygen_Full_Version_Free_Download_3264bit_April2022.pdfIn PDF document text
    • https://www.nesoddenhk.no/wp-content/uploads/2022/07/Adobe_Photoshop_2021_Version_225.pdfIn PDF document text
    • http://marrakechtourdrivers.com/advert/adobe-photoshop-2021-version-22-3-keygen-crack-setup-download/In PDF document text
    • https://heidylu.com/wp-content/uploads/2022/06/Photoshop_2021_Version_2210_Free_PCWindows.pdfIn PDF document text
    • https://allsporters.com/upload/files/2022/07/R6xlZgfEo31Zbx6XF5Qk_01_b26cc67577f5f5991f40b2933ea9eb20_file.pdfIn PDF document text
    • http://ifurnit.ir/2022/07/01/photoshop-cs3-crack-keygen-with-full-keygen-download-3264bit/In PDF document text
    • http://launchimp.com/photoshop-2022/In PDF document text
    • https://sattology.org/wp-content/uploads/2022/07/ophiquir.pdfIn PDF document text
    • https://gitess.com/wp-content/uploads/2022/07/Photoshop_CC_2018_version_19.pdfIn PDF document text
    • https://www.ncsheep.com/advert/adobe-photoshop-2021-with-key-free-win-mac-march-2022/In PDF document text
    • https://rollercoasterfriends.be/wp-content/uploads/2022/07/Adobe_Photoshop_2022_Version_232.pdfIn PDF document text
    • https://bodhirajabs.com/wp-content/uploads/2022/07/chanedm.pdfIn PDF document text
    • http://thanhphocanho.com/photoshop-cc-2018-hack-patch-download-latest/In PDF document text
    • https://amnar.ro/photoshop-cc-2018-free-registration-code-latest/In PDF document text
    • https://bluesteel.ie/2022/07/01/photoshop-2022-version-23-0-universal-keygen-pc-windows/In PDF document text
    • https://repliquetees.com/advert/adobe-photoshop-2022-version-23-4-1-keygen-only-keygen-for-lifetime/In PDF document text
    • https://lexcliq.com/adobe-photoshop-2022-version-23-1-1-crack-file-only-activation-code-with-keygen/In PDF document text
    • http://emailgoal.com/helobacter.anodizing?facilitator=glickman&overselling&qwrvymugughvdg9zag9widiwmjigkfzlcnnpb24gmjmumskqwr=gmail&zg93bmxvywr8su02wvrnefpuedhnvfkxtmpzd05estnoshg4twpvm05iedhlrtbwsuhkbflxuxrzbxh2wnlcyljtrnpkq0jiulu1za=survivingIn 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
stream_003_off000025f4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x25F4 120140 bytes
SHA-256: a217f12862e0ff75203bdd4136ca0d68471050be46bb09aed5306898926ffdd4
font_01_sfnt_off0000d3d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3D7 76772 bytes
SHA-256: 07ce6fea3c98bf59133021be55ce9147f9c26365efe580a2a4f82130ca697f54