Malicious PDF — malware analysis report

Static analysis result for SHA-256 ece9545a1293a998…

MALICIOUS

PDF

69.7 KB Created: 2021-03-05 14:40:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 2ea8ac91192de1621eee5b278b51276f SHA-1: f02c5a69906b984d843e59539080021db69bf9ff SHA-256: ece9545a1293a9981673c9b3abbae9d7f28da9dc858dc29331484a4a008fb8ef
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/award?keyword=how+to+recharge+noco+genius+boost+plus+gb40 PDF link annotation
    • https://cdn.sqhk.co/takularozo/hBjb3ih/40936995802.pdfIn PDF document text
    • https://cdn.sqhk.co/xegunorasu/EgiCifn/6036761228.pdfIn PDF document text
    • https://cdn.sqhk.co/sanevujaguda/if4KADK/bobumifoguwubutisidosu.pdfIn PDF document text
    • https://cdn.sqhk.co/fumodolanes/nicjdDq/ping_pong_table_walmart_espn.pdfIn PDF document text
    • https://cdn.sqhk.co/motuvitewodi/1gdjhhg/69207105983.pdfIn PDF document text
    • https://nabikiwajozipaf.weebly.com/uploads/1/3/5/3/135391661/e1f09d.pdfIn PDF document text
    • https://fubareno.weebly.com/uploads/1/3/1/4/131482864/87b7b.pdfIn PDF document text
    • https://gupovokezatiku.weebly.com/uploads/1/3/4/8/134878629/nakogipeb-kegejosu-dubuvimigejet-wipuvo.pdfIn PDF document text
    • https://cdn.sqhk.co/tekemozuj/8hfQhdc/14915798165.pdfIn PDF document text
    • https://cdn.sqhk.co/wafizogep/ljWTXie/20501519053.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4503387/normal_5ff5b5e75f798.pdfIn PDF document text
    • https://gakewejodum.weebly.com/uploads/1/3/4/9/134902465/e104404926f.pdfIn PDF document text
    • https://tivepikilusu.weebly.com/uploads/1/3/4/7/134759048/856a71.pdfIn PDF document text
    • https://cdn.sqhk.co/divoxisig/gj0zDkN/57965505092.pdfIn PDF document text
    • https://cdn.sqhk.co/wogokodu/eUihjha/lurasabelurowiv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417658/normal_603ab63cf40a4.pdfIn PDF document text
    • https://gopaxeseje.weebly.com/uploads/1/3/6/0/136082610/jovedov_muzotafiwaz_ruvisi_dopafoduli.pdfIn PDF document text
    • https://vebokupamo.weebly.com/uploads/1/3/4/4/134494409/lizidojawanonozalip.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d020.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD020 5620 bytes
SHA-256: 9510aabbba7d0e6f07bf058dad9d844e38dcc3726ef2ac142109c70dbef6a8b4
font_01_sfnt_off0000e351.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE351 10888 bytes
SHA-256: a5e179635f184a4f2dae865e1cc944c0b49cb7d16047fda4368b140e9e2ef190

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