Malicious PDF — malware analysis report

Static analysis result for SHA-256 12cd09bb0d8ce5f8…

MALICIOUS

PDF

66.4 KB Created: 2021-02-13 16:04:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: e6af65d16e7ac7f5e9f9bdbeac73173a SHA-1: 72c748d74774217f6b260ad3183b3188bae1ec58 SHA-256: 12cd09bb0d8ce5f89a455f68b85ddcc890693f14ca2bc6e99fee586824a0dff8
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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 https://bologen.ru/wix?keyword=gold+crown+volleyball+camp PDF link annotation
    • http://tosety.xyz/charlie_s_angels_full_throttle_soundtrackk0n9q.pdfIn PDF document text
    • https://mokugutareno.weebly.com/uploads/1/3/1/6/131606089/4678035.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392864/normal_600d5440b3c0d.pdfIn PDF document text
    • https://kipigifusulip.weebly.com/uploads/1/3/4/4/134437712/sudemikoxejax.pdfIn PDF document text
    • http://shoppermarket.online/tubolujkf57.pdfIn PDF document text
    • https://wugeneziwepuzi.weebly.com/uploads/1/3/4/4/134494794/2c7435d443eb.pdfIn PDF document text
    • https://zupakikaxabu.weebly.com/uploads/1/3/1/3/131380404/7e0370c0b.pdfIn PDF document text
    • https://pirebuvix.weebly.com/uploads/1/3/2/7/132710697/c03d8a12c2.pdfIn PDF document text
    • https://zoxalutaj.weebly.com/uploads/1/3/1/4/131407742/ludipugexake.pdfIn PDF document text
    • https://jefanumu.weebly.com/uploads/1/3/4/8/134889008/190c50c2b1ebe.pdfIn PDF document text
    • https://raxuremaxu.weebly.com/uploads/1/3/5/3/135350699/9604868.pdfIn PDF document text
    • http://skameyki.club/79934802997w6g2v.pdfIn PDF document text
    • https://sipemesiga.weebly.com/uploads/1/3/4/0/134095973/kozobupepokut.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/tisegovofu/63967274291.pdfIn PDF document text
    • https://s3.amazonaws.com/somisilegex/navigation_bar_android_studio_kotlin.pdfIn PDF document text
    • https://s3.amazonaws.com/negonanopix/90824222997.pdfIn 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/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c734.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC734 5464 bytes
SHA-256: 68c60ce043fc2dcd63e66de92cf55ac1534a08650f3240d2d91f416628d3a685
font_01_sfnt_off0000d9d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9D2 10104 bytes
SHA-256: 778e567f088a3eb74d35ce595c53fb50a4524fe3fb061c6a7c8d312643213f59