Malicious PDF — malware analysis report

Static analysis result for SHA-256 4de3952e0334de6b…

MALICIOUS

PDF

142.2 KB Created: 2022-06-11 18:51:23 +02:00 Authoring application: grayvand (via PDF Master 1.0.1) First seen: 2026-04-29
MD5: c172c65a82edebc67f7ce8a139f7b5c5 SHA-1: 51dfb20d9b39a23b1f4697ba950bd7ae633249d0 SHA-256: 4de3952e0334de6bfc09f819d32860e8d0f3e125b1557fe774e02e22e262b220
234 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0008

Heuristics 7

  • 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.
  • 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/ZG93bmxvYWR8UG80TVRBNVlqUjhmREUyTlRRNE9UTXhPVEY4ZkRJMU9UQjhmQ2hOS1NCWGIzSmtjSEpsYzNNZ1cxaE5URkpRUXlCV01pQlFSRVpk/freezes/SEQgT25saW5lIFBsYXllciAoU3VwZXIgU2luZ2ggUHVuamFiaSBNb3ZpZSBJbiBIaW5kaSBEKQSEQ/terroritories.sanguinole?mild=nielson/pussyfoot/technicolor PDF link annotation
    • https://eventouritaly.com/wp-content/uploads/2022/06/morida.pdfIn PDF document text
    • https://germanconcept.com/keymaker-core-adobe-cs5-keygen-_top_/In PDF document text
    • https://craft-app.com/wp-content/uploads/2022/06/Sony_Cd3xxcdirectkw2000_Manual.pdfIn PDF document text
    • https://gametimereviews.com/wp-content/uploads/2022/06/Sherlock_Holmes_2_Tamil_Dubbed_Movie_Free_88_EXCLUSIVE.pdfIn PDF document text
    • https://careerlineup.com/wp-content/uploads/2022/06/LinPlug_Octopus_V133_WiN_MacOSX_Incl_KeygenR2R_deepstatus_64_Bit.pdfIn PDF document text
    • https://stark-ravine-78111.herokuapp.com/Minecraft_17_10_Too_Many_Items_Download.pdfIn PDF document text
    • http://www.vauxhallvictorclub.co.uk/advert/gnbermansolutionspdfdownload-free/In PDF document text
    • https://cosasparamimoto.club/abcd-any-body-can-dance-2-full-movie-with-english-subtitles-hd-download/In PDF document text
    • https://www.apbara.be/index.php/advert/ff-meta-ot-collection-fonts-torrent/In PDF document text
    • https://tranquil-tor-93097.herokuapp.com/Windows_78_10_Loader_Activator_v519_Reloaded_download_pc.pdfIn PDF document text
    • https://scrolllinkupload.s3.amazonaws.com/upload/files/2022/06/3LkEKqvqX4hRMhyefQvQ_11_c2c0be9a28f1b6ad1325f31d0846cd56_file.pdfIn PDF document text
    • http://jacksonmoe.com/?p=3587In PDF document text
    • https://www.urban-texture.it/wp-content/uploads/No_Entry_movie_download_hindi_audio_720p_torrent.pdfIn PDF document text
    • https://fystop.fi/xforce-keygen-flame-2017-32-bit-zip/In PDF document text
    • https://cap-hss.online/xenosuitexenobotfortibiacrackedarmasetupfree-cracked/In PDF document text
    • https://boomingbacolod.com/mcq-in-computer-science-by-ela-kumar-pdf-free-download/In PDF document text
    • https://wudlab.com/wp-content/uploads/2022/06/seavali.pdfIn PDF document text
    • http://uglybear90.com/wp-content/uploads/2022/06/Wic_Reset_Utility_Keygen_TOP_V_211_52.pdfIn PDF document text
    • https://ascenso.co/wp-content/uploads/2022/06/talabr.pdfIn PDF document text
    • https://humansofuniversity.com/wp-content/uploads/2022/06/makiola.pdfIn PDF document text
    • http://evacdir.com/zg93bmxvywr8ug80tvrbnvlqujhmreuytlrrne9utxhpvey4zkrjmu9uqjhmq2hos1ncwgizsmtjsepsyznnz1cxae5urkpruxlcv01pqlfsrvpk/freezes/seqgt25saw5lifbsyxllciaou3vwzxigu2luz2gguhvuamfiasbnb3zpzsbjbibiaw5kasbekqseq/terroritories.sanguinole?mild=nielson/pussyfoot/technicolorIn PDF document text
    • http://uglybear90.com/wp-content/uploads/2022/06/wic_reset_utility_keygen_top_v_211_52.pdfIn 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_002_off000010b5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x10B5 120140 bytes
SHA-256: a217f12862e0ff75203bdd4136ca0d68471050be46bb09aed5306898926ffdd4
font_01_sfnt_off0000be98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE98 76772 bytes
SHA-256: 07ce6fea3c98bf59133021be55ce9147f9c26365efe580a2a4f82130ca697f54