Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d37c088c4d735d6…

MALICIOUS

PDF

123.2 KB Created: 2022-06-12 06:16:42 +02:00 Authoring application: nelbar (via PDF Master 1.0.1) First seen: 2026-05-20
MD5: 20c8fbba722b643a7037ddf2092e66bc SHA-1: 6d36e47b601441c8c1b5d070c3a11e48fcdfa3ee SHA-256: 6d37c088c4d735d662637425502a18adc9f3c1f05253dd727bee1f1c07083685
194 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0018

Heuristics 6

  • 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.
  • 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://evacdir.com/marque/?SHR0cCBGaWxlaWNlIE5ldCBEb3dubG9hZCBQaHAgRmlsZSA0MXpwZQSHR=apex.cctb.ZG93bmxvYWR8VjZ6T1dVNWNueDhNVFkxTkRrNE9URTJNbng4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA/uncontested/putting PDF link annotation
    • https://ylmso.com/wp-content/uploads/2022/06/Materialise_Magics_3_Matic_Mimics_15_3_Matic_V7_0_Crackedrar.pdfIn PDF document text
    • https://emiratesoptical.net/acdsee-pro-5-2-157-2012-multi-serial-key/In PDF document text
    • http://www.interprys.it/wp-content/uploads/2022/06/Lumion_80_Pro_Serial_Number_Reading_Tool_download.pdfIn PDF document text
    • http://powervapes.net/leagoo-z5-flash-file-mt6580-6-0-firmware/In PDF document text
    • https://latestnewsharyana.com/wp-content/uploads/2022/06/Cadpower_64bit_Keygen_Keygenrar.pdfIn PDF document text
    • https://tuscomprascondescuento.com/wp-content/uploads/2022/06/Camtasia_Studio_V802918_Serials_ChattChitto_RG_Download_Pc.pdfIn PDF document text
    • https://xn--80aagyardii6h.xn--p1ai/mercedes-ewa-net-v2-25-0-7-epc-wis-last-updates-techtools-full-version/In PDF document text
    • https://4uall.net/wp-content/uploads/2022/06/xileyes.pdfIn PDF document text
    • https://linuxhacks.in/wp-content/uploads/2022/06/cazzpes.pdfIn PDF document text
    • http://touchdownhotels.com/net-framework-version-4-7-2-hot-crack/In PDF document text
    • https://neherbaria.org/portal/checklists/checklist.php?clid=30271In PDF document text
    • https://neherbaria.org/portal/checklists/checklist.php?clid=30270In PDF document text
    • http://climabuild.com/thinkwise2009crack/In PDF document text
    • https://bahargroup.ch/wp-content/uploads/2022/06/gladotom.pdfIn PDF document text
    • https://savosh.com/criminal-minds-season-8-complete-avicriminal-minds-season-8-complete-avi/In PDF document text
    • https://gaming-walker.com/upload/files/2022/06/cD5idDNmi4bcINvcIqwv_12_80826c698e4265befc1c4c4487bc4802_file.pdfIn PDF document text
    • https://www.atlaspain.it/wp-content/uploads/2022/06/Minitab_1610_Portable.pdfIn PDF document text
    • http://www.suaopiniao1.com.br//upload/files/2022/06/uIe2LugzZnn7TduNF9WK_12_80826c698e4265befc1c4c4487bc4802_file.pdfIn PDF document text
    • https://imoraitilaw.com/download-buku-sun-tzu-versi-indonesia-pdf-free/In PDF document text
    • http://evacdir.com/marque/?shr0ccbgawxlawnlie5ldcbeb3dubg9hzcbqahagrmlszsa0mxpwzqshr=apex.cctb.zg93bmxvywr8vjz6t1dvnwnuedhnvfkxtkrrne9urtjnbng4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda/uncontested/puttingIn PDF document text
    • https://monarch.calacademy.org/checklists/checklist.php?clid=9562In 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_001_off00000c1e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xC1E 120140 bytes
SHA-256: a217f12862e0ff75203bdd4136ca0d68471050be46bb09aed5306898926ffdd4
font_01_sfnt_off0000ba01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA01 76772 bytes
SHA-256: 07ce6fea3c98bf59133021be55ce9147f9c26365efe580a2a4f82130ca697f54