Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b18f1d6132cc330…

MALICIOUS

PDF

71.7 KB Created: 2021-03-11 12:57:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: f545d322db8ca3afce1106dbcfc47771 SHA-1: da10350ead2ee58e8bd29c4243e2fde6d1dbf325 SHA-256: 6b18f1d6132cc3304987b262bf5290d0bc7d72103f680a5502d66954bdd0d68b
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://golowaki.ru/wix?keyword=mini+shop+vac+attachments PDF link annotation
    • https://rubitolagaju.weebly.com/uploads/1/3/5/3/135330326/lozifidepo.pdfIn PDF document text
    • http://ditugivovuf.22web.org/how_to_change_code_on_my_sentry_safe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499656/normal_601b9139b431a.pdfIn PDF document text
    • http://vinnipoh.space/wekipogezoburiganekodewv98z.pdfIn PDF document text
    • http://mopotiboxa.iblogger.org/difaxejer.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445550/normal_600be2a37e1ac.pdfIn PDF document text
    • http://wonikugemozu.iblogger.org/lixizalosopeve.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467277/normal_6017982fb1463.pdfIn PDF document text
    • http://xasefosixojoloj.iblogger.org/40124934757.pdfIn PDF document text
    • http://demubowigipuwi.22web.org/79430288246.pdfIn PDF document text
    • https://buzijivugaza.weebly.com/uploads/1/3/4/7/134709386/jejozovomalugu.pdfIn PDF document text
    • http://evakuator-uga.ru/western_civilization_joshua_cole706uj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383445/normal_601a1a401ba8e.pdfIn PDF document text
    • https://guxenebulofoto.weebly.com/uploads/1/3/2/8/132814975/30498326899d5b.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://liviwofuxa.epizy.com/nordictrack_commercial_1750_treadmill_specs.pdfIn PDF document text
    • http://molegidotisi.rf.gd/vesagigum.pdfIn PDF document text
    • http://lejugolidisixod.rf.gd/lirifajelanamegutoninim.pdfIn PDF document text
    • http://zavukazena.epizy.com/samsung_galaxy_s9_charger_specification.pdfIn PDF document text
    • http://kakekevuvek.epizy.com/97310024874.pdfIn PDF document text
    • http://febojuv.epizy.com/baixar_para_o_pc.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cdbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDBF 4896 bytes
SHA-256: 98513767793bf364782e8bb1d6213b9bcbd69cfef85044468ceb470ffcfe7165
font_01_sfnt_off0000de3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE3E 10412 bytes
SHA-256: b044b04a0459348588441860676207a1c0c3ce00717e45f82b6dce680dca2c78
font_02_sfnt_off000101a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101A8 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e