Malicious PDF — malware analysis report

Static analysis result for SHA-256 4876d4725b02ed3a…

MALICIOUS

PDF

133.1 KB Created: 2022-07-02 09:23:59 +02:00 Authoring application: beridwel (via PDF Master 1.0.1) First seen: 2026-04-22
MD5: 12b480ed18fd06889dd8e13b8f44934f SHA-1: 3f7ef1632e5b77ff372cf7c4394951cc8b343439 SHA-256: 4876d4725b02ed3a1a4728b52adb77481f523df01b00bf7a45d990c15b9f71f0
239 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0077

Heuristics 8

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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.
  • PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • 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://find24hs.com/assateague.Q2hhbHRlIENoYWx0ZSAyIG1vdmllIGRvd25sb2FkIHV0b3JyZW50IGZyZWUQ2h/ether=convoluted/pdif=ZG93bmxvYWR8SGg0WWpabmFueDhNVFkxTmpjeE1qTXdOWHg4TWpVM05IeDhLRTBwSUhKbFlXUXRZbXh2WnlCYlJtRnpkQ0JIUlU1ZA/hyaluronic.purecalm PDF link annotation
    • https://superstitionsar.org/outlast-patch-2-win32-fix-nosteam-serial-key/In PDF document text
    • http://horley.life/?p=28990In PDF document text
    • http://findmallorca.com/wp-content/uploads/2022/07/Pippione_Dermatologia_E_Venereologia_Pdf_Download_VERIFIED.pdfIn PDF document text
    • https://lacomfortair.com/free-top-download-net-framework-v4-0-30319/In PDF document text
    • https://www.bedfordma.gov/sites/g/files/vyhlif6866/f/file/file/guide_to_town_meeting.pdfIn PDF document text
    • https://www.cameraitacina.com/en/system/files/webform/feedback/danger-doom-the-mouse-and-the-mask-full-album-zip.pdfIn PDF document text
    • https://secure-shore-88738.herokuapp.com/Split_Second_Velocity_2010_keygen.pdfIn PDF document text
    • https://www.calinews.pf/advert/volver-al-futuro-2-1080p-latino-link/In PDF document text
    • https://fitadina.com/2022/07/02/lulo-cafe-pure-surprise-free-mp3-289-hot/In PDF document text
    • https://giovanimaestri.com/2022/07/02/preteen-lolita-jailbait-models-ls-bbs-jpggolkes/In PDF document text
    • https://liquidonetransfer.com.mx/?p=31401In PDF document text
    • https://hestur.se/upload/files/2022/07/ZJmLDFKt2SG4fmF3Krhg_02_fc0beee01cae3c14c826e8ae6f4ad2e6_file.pdfIn PDF document text
    • http://www.vxc.pl/?p=34339In PDF document text
    • https://www.1home.sk/wp-content/uploads/2022/07/Laajawab_Dubbed_Movie_Download_UPD.pdfIn PDF document text
    • http://fede-percu.fr/crossfireecoinhackfreedownloadcrossfirephilippines-link/In PDF document text
    • https://fokusparlemen.id/wp-content/uploads/2022/07/See_Electrical_Caddy_Download_Crack_TOP.pdfIn PDF document text
    • http://thetruckerbook.com/2022/07/02/god-of-war-ascension-psp-iso-torrent-download-hot/In PDF document text
    • https://c-secure.fi/wp-content/uploads/2022/07/I_hindi_movie_download_720p_hd.pdfIn PDF document text
    • https://gazetabilgoraj.pl/advert/download-igo8-wince-install/In PDF document text
    • http://find24hs.com/assateague.q2hhbhrlienoywx0zsayig1vdmlligrvd25sb2fkihv0b3jyzw50igzyzwuq2h/ether=convoluted/pdif=zg93bmxvywr8sgg0wwpabmfuedhnvfkxtmpjee1qtxdowhg4twpvm05iedhlrtbwsuhkbflxuxrzbxh2wnlcyljtrnpkq0jiulu1za/hyaluronic.purecalmIn PDF document text
    • https://socialspace.ams3.digitaloceanspaces.com/upload/files/2022/07/kaOnooMREey2fHbnIbbK_02_b46db37b3ef6ed22caa0b41bf63e3e21_file.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_003_off00001a1c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1A1C 120140 bytes
SHA-256: a217f12862e0ff75203bdd4136ca0d68471050be46bb09aed5306898926ffdd4
font_01_sfnt_off0000c7ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7FF 76772 bytes
SHA-256: 07ce6fea3c98bf59133021be55ce9147f9c26365efe580a2a4f82130ca697f54