Malicious PDF — malware analysis report

Static analysis result for SHA-256 bcc7a8f79e138c94…

MALICIOUS

PDF

118.4 KB Created: 2022-06-17 20:38:48 +02:00 Authoring application: sherwayn (via PDF Master 1.0.1) First seen: 2026-06-02
MD5: 20394a4018d037d4b0b2176d8c03bf69 SHA-1: 1ca5e5074c8df8f9daffc92c424baf34de8080c1 SHA-256: bcc7a8f79e138c94bcdca14c57049a26699d7875c7cc8dd31893689c8b2df800
104 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0092

Heuristics 4

  • 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/impetigo/circuitcity/?helpless=QXV0b0NBRAQXV&intention=/ZG93bmxvYWR8SmsxTW5SMWQzeDhNVFkxTlRRM09UZzRPWHg4TWpVNE4zeDhLRTBwSUVobGNtOXJkU0JiUm1GemRDQkhSVTVk PDF link annotation
    • http://evacdir.com/impetigo/circuitcity/?helpless=qxv0b0nbraqxv&intention=/zg93bmxvywr8smsxtw5smwqzedhnvfkxtlrrm09uzzrpwhg4twpvne4zedhlrtbwsuvobgntoxjku0jium1gemrdqkhsvtvkIn 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_off00001f45.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1F45 120232 bytes
SHA-256: 1bca24522e6f849e4c266d220a7c32edfd0521d6e44cdaabb8d7d7ccb376d877
font_01_sfnt_off0000cd70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD70 76772 bytes
SHA-256: 07ce6fea3c98bf59133021be55ce9147f9c26365efe580a2a4f82130ca697f54