Malicious PDF — malware analysis report

Static analysis result for SHA-256 07d4fcea3a31ba99…

MALICIOUS

PDF

44.8 KB Created: 2020-10-07 05:52:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 170f0b5ee3341ee7e768301c5e3f6134 SHA-1: 5742fc951aee51166350fd8d89714bab42003e68 SHA-256: 07d4fcea3a31ba99682a3fb1cb30e69dd9eea57c117940a120d3bfb9640c9787
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ggtraff.ru/strik?keyword=artesania+rinconada+collectors+pricing+guide In PDF document text
    • http://muloguvi.fullglassglazing.com/uploads/1/3/0/8/130814328/pajej-toketagav-lededosuri.pdfIn PDF document text
    • http://files.ameliaguild.com/uploads/1/3/1/6/131636988/wafemozimol.pdfIn PDF document text
    • http://kapavuza.sccwga.org/uploads/1/3/1/4/131407089/840817.pdfIn PDF document text
    • http://files.midlandboxerclub.com/uploads/1/3/0/7/130775361/tuxikupagepiwonutow.pdfIn PDF document text
    • https://site-1038390.mozfiles.com/files/1038390/96209228836.pdfIn PDF document text
    • https://site-1038970.mozfiles.com/files/1038970/82903096843.pdfIn PDF document text
    • https://site-1038517.mozfiles.com/files/1038517/sigitewiwefa.pdfIn PDF document text
    • https://site-1038969.mozfiles.com/files/1038969/86508148496.pdfIn PDF document text
    • https://site-1038980.mozfiles.com/files/1038980/56387057573.pdfIn PDF document text
    • https://site-1043941.mozfiles.com/files/1043941/55298519174.pdfIn PDF document text
    • https://site-1038429.mozfiles.com/files/1038429/pipusu.pdfIn PDF document text
    • https://site-1037048.mozfiles.com/files/1037048/mavojarumironidekawatix.pdfIn PDF document text
    • https://site-1036934.mozfiles.com/files/1036934/38890908171.pdfIn PDF document text
    • https://site-1038332.mozfiles.com/files/1038332/tuwisobarufo.pdfIn PDF document text
    • https://site-1037192.mozfiles.com/files/1037192/83701047223.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000062de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62DE 5112 bytes
SHA-256: 09f584dbd1429f7e2f9285ccdc947730cdc6594908d694a96001f0af90fca4d1
font_01_sfnt_off00007442.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7442 10604 bytes
SHA-256: ff3ccec44886db08dfe2ffef540bb8d8890165a70ed5eeee9cf0dfbb0674239f
font_02_sfnt_off00009840.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9840 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71