Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f7b1529b1e865d1…

MALICIOUS

PDF

131.4 KB Created: 2022-07-02 11:12:30 +02:00 Authoring application: brenrepu (via PDF Master 1.0.1) First seen: 2026-05-01
MD5: cca1ecfef1394157c861799b859a5648 SHA-1: 8c9afc8526cbc20944021f9798425ef8ae36c576 SHA-256: 3f7b1529b1e865d1a06679e843ae657094a709e69813b454db6850a065d27990
129 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0005

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://find24hs.com/ZG93bmxvYWR8a2g1WkdKMlozeDhNVFkxTmpjeE1qTXdOWHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA/makings/croquets&deadens=driftwood&investement=pretreatment&slater=am9obiBhbGV4YW5kZXIgd2llIGR1IHp1bSBhbHBoYSBtYW5uIHdpcnN0IHBkZgam9 PDF link annotation
    • http://weedcottage.online/?p=92807In PDF document text
    • https://goto.business/free-classified-ads/advert/freelance-job/In PDF document text
    • https://www.pooldone.com/x-force-alias-autostudio-2010-free-download-link/In PDF document text
    • https://www.weactgreen.com/upload/files/2022/07/v38JlanWwJMK7hllebk5_02_fcede43f68697a904bf70c102e9df086_file.pdfIn PDF document text
    • https://whatchats.com/upload/files/2022/07/3gnl1B28eiinMXC8rVjm_02_ccbde6d73192f4284d8f3fe8bb3dc8f7_file.pdfIn PDF document text
    • https://xcars.co/endless-fables-3-dark-moor-verified-download-for-pc-pcgolkes/In PDF document text
    • https://www.careerfirst.lk/system/files/webform/cv/navsha266.pdfIn PDF document text
    • https://buycoffeemugs.com/jurm-movie-5-hindi-hd/In PDF document text
    • https://www.careerfirst.lk/sites/default/files/webform/cv/lesire919.pdfIn PDF document text
    • http://eafuerteventura.com/?p=22219In PDF document text
    • https://www.joycedayton.com/sites/default/files/webform/marharl838.pdfIn PDF document text
    • https://madeinamericabest.com/dream-league-soccer-2019-v6-04-mod-apk-3/In PDF document text
    • http://findmallorca.com/masha-babko-pics-chanl/In PDF document text
    • http://whatthefhappened.net/?p=5040In PDF document text
    • https://www.greatescapesdirect.com/2022/07/virtual-sailor-7-cd-key-rar-__hot__/In PDF document text
    • https://www.chimfab.com/michael-jackson-immortal-deluxe-edition-320-kbps-rarrar/In PDF document text
    • https://customaffiliations.com/wp-content/uploads/2022/07/Street_Legal_Racing_Redline_221_Mwm_100_Save_Game_UPDATED.pdfIn PDF document text
    • https://1w74.com/doremisoft-swf-video-converter-keygen-better-crack/In PDF document text
    • http://find24hs.com/zg93bmxvywr8a2g1wkdkmlozedhnvfkxtmpjee1qtxdowhg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda/makings/croquets&deadens=driftwood&investement=pretreatment&slater=am9obibhbgv4yw5kzxigd2lligr1ihp1bsbhbhboysbtyw5uihdpcnn0ihbkzgam9In PDF document text
    • https://www.csun.edu/sites/default/files/webform/Daemon-Tools-Lite-449-Serial-Number.pdfIn PDF document text
    • https://skilled-space.sfo2.digitaloceanspaces.com/2022/07/halicate.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
🗂 Part of campaign: secureserver.net 1471 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_010_off000039dd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x39DD 120288 bytes
SHA-256: 05ba766e7d79f713b9c77f6802a9e00daf385e8eb475a7907badfd5b7f715123
font_01_sfnt_off0000e82d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE82D 76772 bytes
SHA-256: 07ce6fea3c98bf59133021be55ce9147f9c26365efe580a2a4f82130ca697f54