Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f7333cd09c74c2e…

MALICIOUS

PDF

72.6 KB Created: 2021-02-18 15:10:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: eba639b4ec882755d77b87f72e689fd0 SHA-1: 3ecff257746b42101635e5f87fd567c8540e8d85 SHA-256: 3f7333cd09c74c2e0ed888d1ff94f88b8b7d8774e80657872b97080fb9e251ac
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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=church+musician+salary+guide PDF link annotation
    • https://wirupexulabajes.weebly.com/uploads/1/3/5/3/135322132/zojusizi-zeviduwufasisav-perejusixepadug-tuzele.pdfIn PDF document text
    • https://cdn.sqhk.co/nobixapo/hdOehek/19018436067.pdfIn PDF document text
    • https://sijokazodile.weebly.com/uploads/1/3/1/4/131454207/6a55ba15e4ad26b.pdfIn PDF document text
    • https://xoburorabusu.weebly.com/uploads/1/3/0/7/130738623/f7124829a.pdfIn PDF document text
    • https://sifejolo.weebly.com/uploads/1/3/1/4/131410009/2504368.pdfIn PDF document text
    • http://demask.fun/57568831028w52w0.pdfIn PDF document text
    • http://repair-kompov.ru/jowerunexodaga3szin.pdfIn PDF document text
    • http://cparta.moscow/stranded_deep_32_bits_2018o02a0.pdfIn PDF document text
    • https://cdn.sqhk.co/rinugezig/pGVigjg/color_block_jeans_brown.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kevikawimal.epizy.com/django_template_language_if_else.pdfIn PDF document text
    • http://ziwejozaz.epizy.com/75555886990.pdfIn PDF document text
    • http://gatituz.rf.gd/space_coast_daily_fishing_report.pdfIn PDF document text
    • http://doroxokile.epizy.com/free_bitlocker_for_windows_10_home.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_off0000e0a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0A4 5360 bytes
SHA-256: b7dd5a174d9926f661e430744bd26b0ff0f7ed361e2ac9aeeaec98de544937ae
font_01_sfnt_off0000f2b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2B2 10396 bytes
SHA-256: 00bb5191e0626922f8a82ac605072fb77b52c747c2206dbed493cb4609c0b1e9