Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 62af34a1c8201c1b…

MALICIOUS

PDF / .VIR

136.5 KB Created: 2022-06-10 16:21:31 +02:00 Authoring application: nagijor (via PDF Master 1.0.1) First seen: 2024-06-15
MD5: edc77b0fa48646908272d053cdad33ca SHA-1: 2817c8e303adabb716a11a00f44722485cf08160 SHA-256: 62af34a1c8201c1b8c421d5248a253ba676a651aa76bb26c3686e0c8acef4915
164 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0009

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://evacdir.com/reenlisted/compat/Q2FkIEthcyBQZGYgRWRpdG9yIDMuMSBGdWxsIERvd25sb2FkIENyYWNrLnJhcgQ2F/evidentiary.mutineer.geogrij/ZG93bmxvYWR8RnUyWWpob01ueDhNVFkxTkRjNE1EazBNbng4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA.igualmente.nearness PDF link annotation
    • https://cristinalinassi.com/wp-content/uploads/Modaco_Super_Boot_Download_61_UPD.pdfIn PDF document text
    • http://simantabani.com/wp-content/uploads/2022/06/eldhaz.pdfIn PDF document text
    • https://attitude.ferttil.com/upload/files/2022/06/tLYodBSmYC6B1te7BJfp_10_cb60c76d3192f96620518a7fc6d6bc8a_file.pdfIn PDF document text
    • https://facepager.com/upload/files/2022/06/OqbCDIxPuyaDgC75THjr_10_cb60c76d3192f96620518a7fc6d6bc8a_file.pdfIn PDF document text
    • http://fitnessbyava.com/wp-content/uploads/2022/06/sherev.pdfIn PDF document text
    • https://shielded-taiga-18165.herokuapp.com/ugolbrye.pdfIn PDF document text
    • https://www.valenciacfacademyitaly.com/wp-content/uploads/2022/06/Intel_R_Ironlake_Desktop_Graphics_Chipset_Driver.pdfIn PDF document text
    • http://gc.pknowledge.eu/wp-content/uploads/2022/06/tinklecomicsebooksfreedownload.pdfIn PDF document text
    • http://www.studiofratini.com/wp-content/uploads/2022/06/Srs_Hd_Audio_Lab_Crack_1125_2021.pdfIn PDF document text
    • https://ipe888.com/30bd44cc13fa7a30ad813cde1638c46c0edaa38936cbedbaaec9e88888dcad22year30bd44cc13fa7a30ad813cIn PDF document text
    • https://www.valenciacfacademyitaly.com/wp-In PDF document text
    • https://ipe888.com/30bd44cc13fa7a30ad813cde1638c46c0edaa38936cbedbaaec9e88888dcad22year30bd44cc13fa7a30ad813cde1638c46c0edaa38936cbedbaaec9e88888dcad22/30bd44cc13fa7a30ad813cde1638c46c0edaa38936cbedbaaec9e88888dcad22monthnum30bd44cc13fa7a30ad813cde1638c46c0edaa38936cbedbaaec9e88888dcad22/30bd44cc13fa7a30ad813cde1638c46c0edaa38936cbedbaaec9e88888dcad22day30bd44cc13fa7a30ad813cde1638c46c0edaa38936cbedbaaec9e88888dcad22/30bd44cc13fa7a30ad813cde1638c46c0edaa38936cbedbaaec9e88888dcad22postname30bd44cc13fa7a30ad813cde1638c46c0edaa38936cbedbaaec9e88888dcad22/In PDF document text
    • http://evacdir.com/reenlisted/compat/q2fkiethcybqzgygrwrpdg9yidmumsbgdwxsiervd25sb2fkienyywnrlnjhcgq2f/evidentiary.mutineer.geogrij/zg93bmxvywr8rnuywwpob01uedhnvfkxtkrjne1eazbnbng4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda.igualmente.nearnessIn 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 8

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
stream_006_off00002524.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2524 120140 bytes
SHA-256: a217f12862e0ff75203bdd4136ca0d68471050be46bb09aed5306898926ffdd4
font_01_sfnt_off0000d307.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD307 76772 bytes
SHA-256: 07ce6fea3c98bf59133021be55ce9147f9c26365efe580a2a4f82130ca697f54

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