Malicious PDF — malware analysis report

Static analysis result for SHA-256 398405853764c77e…

MALICIOUS

PDF

81.8 KB Created: 2021-02-27 18:47:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: c5b2e8f2b88b8ac54f6c24005be8b2c7 SHA-1: c73a6c464d6e034ca7acdf7947ab1d0a87c6ff3e SHA-256: 398405853764c77e55ae8030dde6176956efcfefdb8032d1245a1b9703bcc7a3
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://dugedepap.ru/wix?keyword=barbarian+leveling+guide+diablo+2 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4464700/normal_5fde428fb0d47.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413983/normal_60003595bd1c3.pdfIn PDF document text
    • http://creampiepow.club/richard_l_daft_management_11th_editiiavcy.pdfIn PDF document text
    • http://load-bcp.com/edukondalavada_venkataramana_govindauupvf.pdfIn PDF document text
    • http://kleomaften.online/27941194386q32xp.pdfIn PDF document text
    • http://segwaywheelchair.ru/bc_sport_fishing_guide._cakgf23.pdfIn PDF document text
    • http://sell-toclick.online/58746553871qfgve.pdfIn PDF document text
    • http://yoptan.space/shamanic_journeying_a_beginner_s_guidea64z3.pdfIn PDF document text
    • http://leomannapov.com/27341731407rxupm.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410448/normal_6002546a39661.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372740/normal_5fe9a318c5494.pdfIn PDF document text
    • http://dvertsoff.ru/beginner_hand_lettering_practice_shez2cyw.pdfIn PDF document text
    • http://seomagnat1.online/the_white_tiger_film_endingm7d40.pdfIn PDF document text
    • http://lastmarkt.ru/lapazutiriwixa1w1jp.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379474/normal_601521cd36724.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off00010466.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10466 5196 bytes
SHA-256: 57ef4e034695f0c87d98ed74873ec9e2fb5efb8597145d008827b5c4d491ea5b
font_01_sfnt_off00011629.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11629 10564 bytes
SHA-256: ae292b9ff1a849526b13b78da846b074698752b5dacb3e02bbc662f0af7f40b4