Malicious PDF — malware analysis report

Static analysis result for SHA-256 acd1da975da99c68…

MALICIOUS

PDF

109.6 KB Created: 2022-10-14 14:35:27 +00:00 Authoring application: indger (via PDF Master 1.0.1) First seen: 2026-06-18
MD5: f9e311b559e47ae0eb3807704b69fefb SHA-1: 83fb0143ea1b904d6ca829919f5455954486b9ca SHA-256: acd1da975da99c689f97580c83783de5e566a4de4441e89ddf1e416ed4a86f30
129 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0013

Heuristics 5

  • 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.
  • 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://starsearchtool.com/dihydrolase/doorbells/conditioning?misallocate=hartland/ZG93bmxvYWR8TlUxTkhGak1ueDhNVFkyTlRjek16ZzBNWHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA.SGFtYXJhIERpbCBBYXBrZSBQYWFzIEhhaSBTdWJ0aXRsZSBJbmRvbmVzaWEgRG93bmxvYWQgTW92aWUSGF PDF link annotation
    • http://stroiportal05.ru/advert/baraha1010productkeyfree-crack/In PDF document text
    • http://www.divinejoyyoga.com/wp-content/uploads/2022/10/college_Sex_Stories_In_Telugu_In_Kamapisachi.pdfIn PDF document text
    • https://eshopper.info/mentalabilitybooksinkannada/In PDF document text
    • https://diontalent.nl/2022/10/14/mp4-hindi-dubbed-dil-ne-jise-apna-kahaa/In PDF document text
    • https://xtc-hair.com/download-verified-gemalto-card-admin-trial-version/In PDF document text
    • https://unsk186.ru/md5-hash-tool-download-verified-pc/In PDF document text
    • https://brutalrecords.com/coming-soon/In PDF document text
    • http://namiflorist.com/?p=16474In PDF document text
    • https://thegolfersdomain.com/wp-content/uploads/2022/10/glychan.pdfIn PDF document text
    • http://steamworksedmonton.com/wp-content/uploads/ApowerRecover_103_Crack.pdfIn PDF document text
    • http://www.divinejoyyoga.com/wp-In PDF document text
    • http://starsearchtool.com/dihydrolase/doorbells/conditioning?misallocate=hartland/zg93bmxvywr8tluxtkhgak1uedhnvfkytlrjek16zzbnwhg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda.sgftyxjhierpbcbbyxbrzsbqywfziehhasbtdwj0axrszsbjbmrvbmvzawegrg93bmxvywqgtw92awusgfIn 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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000014b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14B8 84508 bytes
SHA-256: 2b7ba551bea82cc3307397981c1dbeb1b78486f95f2eb14e5e58d4e1b24edb0c
font_01_sfnt_off00009ca4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CA4 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261