Malicious PDF — malware analysis report

Static analysis result for SHA-256 b327464724694103…

MALICIOUS

PDF

137.5 KB Created: 2022-07-03 13:55:23 +00:00 Authoring application: alarkirb (via PDF Master 1.0.1) First seen: 2022-07-15
MD5: ec9f2f76b0c0f4c07d53a3086e23a940 SHA-1: 4c1993c0b70694cbdf733271b33d24455e851f10 SHA-256: b327464724694103dabb515c359b9c90b687f39e7e22898dd624a49308204d1c
189 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0077

Heuristics 6

  • 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.
  • Viral-video clickbait PDF links to suspicious host critical SE_VIRAL_VIDEO_CLICKBAIT_LINK
    Document uses viral/leaked-video lure text and links to a suspicious disposable-looking web host. This is a clickbait/traffic-scam carrier shape rather than a benign PDF link.
  • 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://evacdir.com/invulnerable/ZG93bmxvYWR8dlUxZEhOd2FYeDhNVFkxTmpjM01UZ3hPSHg4TWpVM05IeDhLRTBwSUhKbFlXUXRZbXh2WnlCYlJtRnpkQ0JIUlU1ZA/bronzed.giddeon?careens=QWFzaGlxdWkgMiA3MjBwIG1vdmllIGRvd25sb2FkQWF=hiccup=perennially PDF link annotation
    • http://touchdownhotels.com/tmf-magazine-issue-pdf-_verified_/In PDF document text
    • https://www.flagshipsd.com/sites/default/files/webform/careers/download-softwere-vst-trilian-bass-free.pdfIn PDF document text
    • https://mia.world/upload/files/2022/07/K6y7bQKxqlLsBiMMA3VV_03_d95c869f2d003d5443e49c9eaa7a040a_file.pdfIn PDF document text
    • https://zentrum-beyond.de/wp-content/uploads/2022/07/Aflightofpigeonspdffreedownload_BETTER.pdfIn PDF document text
    • https://www.tnrhcp.com/after-effects-plugins-for-edius-6rar-free/In PDF document text
    • http://ontarioinvestigatortraining.ca/blog/index.php?entryid=1620In PDF document text
    • https://mandarinrecruitment.com/system/files/webform/thurlasc110.pdfIn PDF document text
    • https://smbsguide.com/goodgame-mafia-gangster-hack-free/In PDF document text
    • http://cpstest.xyz/reset-epson-tx620fwd-rar-verified/In PDF document text
    • https://crm.fems-microbiology.org/system/files/webform/femsmicrostory/wylhves980.pdfIn PDF document text
    • https://lobenicare.com/final-fantasy-vii-hentai-tifa-the-key-to-a-broken-heart-english-subtitles-portable/In PDF document text
    • https://factspt.org/wp-content/uploads/2022/07/DLL_Files_Fixer_2020_V_3392_Crack_License_Key_Full_Version_2.pdfIn PDF document text
    • http://insenergias.org/?p=22789In PDF document text
    • https://aipc.ae/wp-content/uploads/2022/07/maksway.pdfIn PDF document text
    • https://contratatrans.org/wp-content/uploads/2022/07/xaibir.pdfIn PDF document text
    • http://joshuatestwebsite.com/microsoft-office-16-word-excel-powerpoint-x32-v16-0-9226-2114-rar/In PDF document text
    • http://www.chandabags.com/pointers-in-business-law-by-suarez-pdf/In PDF document text
    • https://lms.igears.com.hk/ywb/blog/index.php?entryid=3195In PDF document text
    • https://legalacademy.net/blog/index.php?entryid=2405In PDF document text
    • http://igpsclub.ru/social/upload/files/2022/07/gleWpyNkxISzDUPEMJQC_03_112fbe87974849eb3d0e3b9236b129b3_file.pdfIn PDF document text
    • http://evacdir.com/invulnerable/zg93bmxvywr8dluxzehod2fyedhnvfkxtmpjm01uz3hpshg4twpvm05iedhlrtbwsuhkbflxuxrzbxh2wnlcyljtrnpkq0jiulu1za/bronzed.giddeon?careens=qwfzaglxdwkgmia3mjbwig1vdmlligrvd25sb2fkqwf=hiccup=perenniallyIn 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_off00001e60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1E60 84648 bytes
SHA-256: 0b6c48f6a4e931a4572b13bb2af9ad514b0702ea3c747f8534c05d2c57946ed4
font_01_sfnt_off0000a6c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA6C3 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261