Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff1842a8f839f678…

MALICIOUS

PDF

73.5 KB Created: 2021-02-14 14:47:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 251ccf24bfda1232ee47cec0ec3089f5 SHA-1: 06eb90e4cd12aa69039980673cf0ab08ffebcfbb SHA-256: ff1842a8f839f67892b8e11355db40cfcc50e1f2e06567eeceed8f2f309c088c
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://maypoin.ru/wix?keyword=minecraft+texture+packs+unblocked+at+school PDF link annotation
    • http://idealica-italiaoficial.site/85277528844vdd09.pdfIn PDF document text
    • http://naturaitalia.space/235554164640umky.pdfIn PDF document text
    • http://topchambre.xyz/kovonegudiben6grw.pdfIn PDF document text
    • http://copyrighthelpptteam.com/94893022938mue74.pdfIn PDF document text
    • http://fit-italy.space/jititopavugexerimogovirhg0fm.pdfIn PDF document text
    • http://babomuniv.22web.org/veporowigeveduxonivewil.pdfIn PDF document text
    • http://wspring.space/age_of_war_2_hacked_unblocked_at_school8oq8l.pdfIn PDF document text
    • https://cdn.sqhk.co/tatidukigag/gfNMAgg/32451274345.pdfIn PDF document text
    • https://cdn.sqhk.co/muzorefu/xyjfknY/80897035817.pdfIn PDF document text
    • http://nefritthebestthing.site/44277841416althn.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pepawelifebin.rf.gd/putowakezarezegowubexigu.pdfIn PDF document text
    • https://s3.amazonaws.com/tapelu/oscilloscope_lab_report.pdfIn PDF document text
    • http://magikid.epizy.com/78302693156.pdfIn PDF document text
    • https://s3.amazonaws.com/jifesu/current_cm_of_indian_states.pdfIn PDF document text
    • http://sujonereduvuk.rf.gd/53063914189.pdfIn PDF document text
    • http://fiwarirekagugen.epizy.com/55472549942.pdfIn PDF document text
    • http://kutugujipix.epizy.com/cell_and_organelles_study_guide_answer_key.pdfIn PDF document text
    • http://pawekixezad.epizy.com/jimimivebiwaselejiw.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_off0000e3db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3DB 5520 bytes
SHA-256: 12c6d9c2e1a8e7dfd1b767b7681d4f02897addefda0a635d2c26a90c320d4028
font_01_sfnt_off0000f6a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6A3 9936 bytes
SHA-256: 13d01604170f4c5fad227141f3f01559f34ec34f49d2cd120173bddf87a23855