Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8b5672ff8c11c5f…

MALICIOUS

PDF

125.6 KB Created: 2022-06-16 11:53:22 +02:00 Authoring application: fabrmyth (via PDF Master 1.0.1) First seen: 2026-04-06
MD5: 623263376d6f5d4e547dfa32cd9f5e6f SHA-1: a78b3e4fe982ffd46281b68c1a5dc493d5bcd034 SHA-256: a8b5672ff8c11c5f2761aae55544b29d9190cac2763714f8aea1427bc7ebcaab
234 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0015

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/denoting/fete.infatuation/ZG93bmxvYWR8ckcyWW5Ga2JIeDhNVFkxTlRNek9Ua3dOSHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA/automart?intermittent&undyed=M2QgU2V4dmlsbGEgMiBFdmVybHVzdCBVbmxvY2sgQWxsIENyYWNrM2Q PDF link annotation
    • https://ratucnc.com/wp-content/uploads/2022/06/Ver_Porno_De_Norita_Rodrigueztrmdsf.pdfIn PDF document text
    • https://www.madrassah.mu/blog/index.php?entryid=1734In PDF document text
    • https://www.spinergo.com/wp-content/uploads/2022/06/mikekal.pdfIn PDF document text
    • https://myquicksnapshot.com/wp-content/uploads/2022/06/garrulu.pdfIn PDF document text
    • http://carolwestfineart.com/?p=8046In PDF document text
    • http://amlakzamanzadeh.com/wp-content/uploads/2022/06/Phoenix_Rc_4_Download_Crack.pdfIn PDF document text
    • https://workuccino.com/wp-content/uploads/2022/06/Donald_Duck_Quack_Attack_Download_Pc_Torrent.pdfIn PDF document text
    • https://aqueous-sierra-25740.herokuapp.com/salche.pdfIn PDF document text
    • https://keephush.net/wp-content/uploads/2022/06/Mob_Psycho_100_Season_1_full_version_free.pdfIn PDF document text
    • https://nkrumaists.com/wp-content/uploads/2022/06/naenat.pdfIn PDF document text
    • https://ledlights.blog/wp-content/uploads/2022/06/ferrjane.pdfIn PDF document text
    • http://facebook.jkard.com/upload/files/2022/06/FIzqlApZbbu1NqOSQaSZ_16_83a8d2665340892499bad61cb740ca50_file.pdfIn PDF document text
    • https://jovenesvip.com/wp-content/uploads/2022/06/wilcom_2006_crack_emulator_password.pdfIn PDF document text
    • https://www.29chat.com/upload/files/2022/06/bPnuWzeWbWyU2MPQ68Z2_16_83a8d2665340892499bad61cb740ca50_file.pdfIn PDF document text
    • http://garage2garage.net/advert/free-divine-healing-technician-training-manual-download-pdf-rar-hot/In PDF document text
    • http://travelfamilynetwork.com/?p=14124In PDF document text
    • https://speakerauthorblueprint.com/2022/06/16/download-facebook-freezer-untuk-windows-7-full/In PDF document text
    • https://eventouritaly.com/en/narcos-season-1-download-720p-better/In PDF document text
    • https://nisharma.com/plan-iq-2-6-7-107-better/In PDF document text
    • https://ayoikut.com/advert/wifisky-1000mw-driver-link-download/In PDF document text
    • http://evacdir.com/denoting/fete.infatuation/zg93bmxvywr8ckcyww5ga2jiedhnvfkxtlrnek9ua3doshg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda/automart?intermittent&undyed=m2qgu2v4dmlsbgegmibfdmvybhvzdcbvbmxvy2sgqwxsienyywnrm2qIn PDF document text
    • http://amlakzamanzadeh.com/wp-content/uploads/2022/06/phoenix_rc_4_download_crack.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_off000016f4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x16F4 120140 bytes
SHA-256: a217f12862e0ff75203bdd4136ca0d68471050be46bb09aed5306898926ffdd4
font_01_sfnt_off0000c4d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4D7 76772 bytes
SHA-256: 07ce6fea3c98bf59133021be55ce9147f9c26365efe580a2a4f82130ca697f54