Malicious PDF — malware analysis report

Static analysis result for SHA-256 958faaf68a6e05f3…

MALICIOUS

PDF

75.1 KB Created: 2021-02-17 17:34:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 93b84597df3d726cef924cfb373c195e SHA-1: d3194cdc88ebbeebfcad06206ee011b3472e2eb2 SHA-256: 958faaf68a6e05f3bd1570efe3f3af78aa34dabbb60c78e2b8a7eba69a933a3e
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • 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://jottigo.ru/strik?utm_term=what+is+the+best+oil+additive+for+a+6.0+powerstroke PDF link annotation
    • https://biteledazuxol.weebly.com/uploads/1/3/4/3/134315761/4427680.pdfIn PDF document text
    • https://xoriforibeb.weebly.com/uploads/1/3/1/0/131071072/dijesa-jipogupamopu-faropuzaxa.pdfIn PDF document text
    • https://regujimupakuve.weebly.com/uploads/1/3/5/3/135348903/9908167.pdfIn PDF document text
    • http://svoylend.xyz/blue_window_play_scriptk9lxb.pdfIn PDF document text
    • https://xekotoruwogobib.weebly.com/uploads/1/3/1/6/131606212/e76fae5bfaf4.pdfIn PDF document text
    • http://yellownatural.space/mifoxubemum1b.pdfIn PDF document text
    • https://sigogaxeba.weebly.com/uploads/1/3/4/6/134620414/6191794.pdfIn PDF document text
    • http://magnifioco.site/environment_and_you_christensenf4znr.pdfIn PDF document text
    • https://cdn.sqhk.co/ferorigife/i6tcPhA/callaway_golf_clubs_for_sale_on_amazon.pdfIn PDF document text
    • https://sezenoxesakibek.weebly.com/uploads/1/3/0/7/130740551/lenetobibufonon-wifazimek-zupuxevof-xewarudomibiv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455179/normal_6010fce995157.pdfIn PDF document text
    • https://zogeliwev.weebly.com/uploads/1/3/4/3/134353139/3664575.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://riwexakax.epizy.com/nizatunape.pdfIn PDF document text
    • http://fituxulilofe.epizy.com/zonebevix.pdfIn PDF document text
    • http://zoxejotemop.rf.gd/business_books_to_read_free.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_off0000e48a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE48A 5824 bytes
SHA-256: a14bfd88ff3bb835c07bdf94e5a3c0af28bd5c8705a7bc076b5aa45cfbe7ba33
font_01_sfnt_off0000f871.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF871 11324 bytes
SHA-256: 333d2e17063f249a53c52bd3c35db68e1ff7732449270de79acd1123d51a16d0