Malicious PDF — malware analysis report

Static analysis result for SHA-256 353414bb5a5ff42b…

MALICIOUS

PDF

68.1 KB Created: 2021-03-08 13:19:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 1a2cd6ae4a132424dd04263973d306b0 SHA-1: c57b2a033a19275599db9307c5f3b411c2fecdd9 SHA-256: 353414bb5a5ff42b459372469ef600411658669ece9dad3b3e4b2b38afc8bd1f
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://soxebez.ru/award?keyword=amazing+grace+lyrics+printable+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4406208/normal_600cb402044aa.pdfIn PDF document text
    • https://xinelonaveguv.weebly.com/uploads/1/3/4/6/134606197/wakesixeguxeveb_letenan_xuroxazozusuga_zedobi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448332/normal_6000f2c073bc0.pdfIn PDF document text
    • https://cdn.sqhk.co/fukonovum/hfqhjgf/rewenujo.pdfIn PDF document text
    • https://nagewapebikex.weebly.com/uploads/1/3/4/6/134647925/likipasazopivagorag.pdfIn PDF document text
    • https://nelizozab.weebly.com/uploads/1/3/0/8/130874358/b13a6b85318.pdfIn PDF document text
    • https://rupilobeva.weebly.com/uploads/1/3/0/7/130775598/kotomafefe.pdfIn PDF document text
    • https://budamasut.weebly.com/uploads/1/3/4/9/134903336/mepikog.pdfIn PDF document text
    • https://cdn.sqhk.co/roziguze/8ha7hiV/xonitalobara.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477369/normal_600fa1cad898d.pdfIn PDF document text
    • https://cdn.sqhk.co/sofizagumup/FjdgMYQ/dr_gary_chessman_oviedo.pdfIn PDF document text
    • https://bunonosuvon.weebly.com/uploads/1/3/5/9/135976801/rumibasafun.pdfIn PDF document text
    • https://fadesirowawilej.weebly.com/uploads/1/3/1/6/131606674/xipivul.pdfIn PDF document text
    • https://sejukato.weebly.com/uploads/1/3/4/0/134018084/1ea17f61617167.pdfIn PDF document text
    • https://lugilabujenubo.weebly.com/uploads/1/3/4/3/134320616/zomatapi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409098/normal_5ff85432dbb15.pdfIn PDF document text
    • https://cdn.sqhk.co/giwumazusew/Ojbjhjf/kofawituvegulepuvab.pdfIn PDF document text
    • https://bizonununifewe.weebly.com/uploads/1/3/4/7/134773553/2950250.pdfIn PDF document text
    • https://cdn.sqhk.co/wuvidomanale/JNhhJil/dutiluvavor.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/defdc091-7f81-48a7-836b-44f65605973e/amplificador_de_som_usado_olx.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f0eeec34-2195-4d1b-885a-49cc42b81c6f/16226760018.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9d8cd94d-6e39-4232-bde8-cbe0c61dac45/nemipur.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_off0000ce7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE7D 5756 bytes
SHA-256: 483b00abb5fc218db25f9e6fc692b7abed8e1bc6ea7e8e8337166b6f9034e36a
font_01_sfnt_off0000e20a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE20A 9720 bytes
SHA-256: 9da8dc674e0d7e3f53e1b6b782de9805a1cfb22bf7bc371d9316e44e7144157e

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