Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0eabff488650feb…

MALICIOUS

PDF

77.3 KB Created: 2021-05-30 17:12:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 55575961363cb7ef8e852edd17a2410f SHA-1: ee199be146a996ff023b3ac382b4ee6237e37e88 SHA-256: b0eabff488650febfd2f9582abad33a751ab521066013402b17ea08bd96eede6
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was identified as malicious by ML classifiers and ClamAV, exhibiting characteristics of a phishing or malware distribution lure. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm designed to redirect users to malicious content. The embedded URLs, such as 'https://mezovuduw.ru/strik?utm_term=cabela%2527s+advanced+angler+battery+charger+manual', are likely part of this redirection chain.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://mezovuduw.ru/strik?utm_term=cabela%2527s+advanced+angler+battery+charger+manual PDF link annotation
    • https://sojugadetoju.weebly.com/uploads/1/3/4/6/134683069/228240b.pdfIn PDF document text
    • https://kenomixu.weebly.com/uploads/1/3/0/9/130969587/04cbb9e.pdfIn PDF document text
    • https://sovinupuni.weebly.com/uploads/1/3/4/7/134762808/manifamowepawixo.pdfIn PDF document text
    • https://suxewanevot.weebly.com/uploads/1/3/4/5/134595646/pawepaza.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378846/normal_602d7623d9864.pdfIn PDF document text
    • https://kusijavi.weebly.com/uploads/1/3/4/3/134385668/8666919.pdfIn PDF document text
    • https://pimapavidi.weebly.com/uploads/1/3/2/7/132740410/kiropijonizol_senujidumorabo.pdfIn PDF document text
    • https://dizegixevovule.weebly.com/uploads/1/3/4/5/134576191/8922790.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387706/normal_60417ef002fa6.pdfIn PDF document text
    • https://fusufuxono.weebly.com/uploads/1/3/1/6/131606103/bepuvimoduvobor-lajer.pdfIn PDF document text
    • https://xobijuveja.weebly.com/uploads/1/3/1/6/131606615/valekikunara.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375339/normal_604e78648b4cd.pdfIn PDF document text
    • https://zazalefofano.weebly.com/uploads/1/3/4/5/134578352/dobaxubelafotekire.pdfIn PDF document text
    • https://static.s123-cdn-static-d.com/uploads/4393626/normal_60b2f0d4bddac.pdfIn PDF document text
    • https://zaduguwage.weebly.com/uploads/1/3/0/8/130874015/7f281c152a.pdfIn PDF document text
    • https://nebomigefut.weebly.com/uploads/1/3/4/3/134359696/fexaza.pdfIn PDF document text
    • https://monazixoniju.weebly.com/uploads/1/3/4/6/134694361/lenizexageken-kajiduxeg-kukowovaru-ririxegafolipaj.pdfIn PDF document text
    • https://bufenosesan.weebly.com/uploads/1/3/5/3/135329861/lupobosazi.pdfIn PDF document text
    • https://kekerisasil.weebly.com/uploads/1/3/0/7/130775365/nofizusikifasaf.pdfIn PDF document text
    • https://static.s123-cdn-static-d.com/uploads/4454691/normal_60afe5c787322.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
    • https://uploads.strikinglycdn.com/files/e8b80249-725c-46b9-a8ae-f0da3581b321/watib.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/13d6e82b-1dff-4484-90cf-010d35c21212/hidruro_de_sodio_nomenclatura.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3dbe2704-9aa4-41c9-908a-75b6e8a79af7/diablosport_intune_i3_tuner_07_13_5.3_l_silverado_1500.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_off0000dfcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFCC 5436 bytes
SHA-256: f269a655b75333b79d58206b72d85e10066bd2b807fbf029670f5a2c3b5f68dd
font_01_sfnt_off0000f226.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF226 10712 bytes
SHA-256: 7a6fa6eb393c29162343e1bf23ef76769137eb5138a400b5da26562b01b83d34
font_02_sfnt_off000116f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116F3 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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