Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c226fd27b198ad7…

MALICIOUS

PDF

71.1 KB Created: 2021-02-25 06:07:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 2c5199003799ca12ad0d844eac42e338 SHA-1: 46b3feae8654adc5d4cf1de0c32a03ead7bf98e2 SHA-256: 9c226fd27b198ad7ee199586de2b3a1bea1dba444e99543f2f2f3e588244732a
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 7

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/award?keyword=casio+edifice+bluetooth+tough+solar+chronograph+watch+eqb-501d-1aer PDF link annotation
    • https://tunibedexorole.weebly.com/uploads/1/3/5/3/135350281/fedewer_dabexisoseje_vaturerovuxaw.pdfIn PDF document text
    • http://wukosemat.22web.org/32045101837.pdfIn PDF document text
    • https://xajimago.weebly.com/uploads/1/3/0/8/130813364/gebizivafiwulanutave.pdfIn PDF document text
    • https://gevuloluwalew.weebly.com/uploads/1/3/1/1/131163761/408732.pdfIn PDF document text
    • https://tepadomuxufebe.weebly.com/uploads/1/3/1/3/131382092/2519798.pdfIn PDF document text
    • https://reperitibomotij.weebly.com/uploads/1/3/1/3/131383541/4181290.pdfIn PDF document text
    • https://posokirotol.weebly.com/uploads/1/3/2/8/132814476/bizafe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402722/normal_600e3bd8377f5.pdfIn PDF document text
    • https://rerararomimin.weebly.com/uploads/1/3/1/3/131383042/cb034eb0617fa.pdfIn PDF document text
    • https://virenejamavik.weebly.com/uploads/1/3/4/1/134131854/tolaxud_wototurizitap_levomanuzozul_xodiz.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/doxifuba/luvidububidinuwevelov.pdfIn PDF document text
    • http://wufajin.rf.gd/cranberry_township_pa_police_reports.pdfIn PDF document text
    • https://s3.amazonaws.com/kavifunaruvi/chaupai_sahib_da_path_audio.pdfIn PDF document text
    • http://jolavewavesuj.epizy.com/how_to_pair_bluetooth_remote_iq4.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_off0000d438.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD438 6032 bytes
SHA-256: fdd0f57ef9a6837465e442e238e045923194a699590aef2c739f472cbeefefaf
font_01_sfnt_off0000e8c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8C9 10612 bytes
SHA-256: c4c2a720dd585a00259c8fbd1cf0e3d59b510e56abfb5806506bcbc9bb58cec9