Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4bea9ac021142a8…

MALICIOUS

PDF

73.7 KB Created: 2021-02-24 20:06:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: cc42020aefcf5f2c28906d93d957b9c6 SHA-1: b0dd8ae102867e8bec425bc8e184c6d87ab68660 SHA-256: c4bea9ac021142a89adf4755cf28dfd0de016ea33354e334cc5272cad7411c1c
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://druttle.ru/aws?utm_term=harry+potter+free+fonts+for+mac PDF link annotation
    • https://tipuxefisabe.weebly.com/uploads/1/3/4/8/134846761/2549124.pdfIn PDF document text
    • https://cdn.sqhk.co/rularijulen/heBia0P/39740851428.pdfIn PDF document text
    • https://kaxupigokib.weebly.com/uploads/1/3/5/3/135324743/dc9aac7d4f08.pdfIn PDF document text
    • https://cdn.sqhk.co/lulamekajasu/9Qff5Aw/homeschool_programs_california.pdfIn PDF document text
    • https://forelidik.weebly.com/uploads/1/3/0/7/130775511/9227835.pdfIn PDF document text
    • https://lolimoxozidexus.weebly.com/uploads/1/3/2/6/132682882/6f64fdf4fe1d3c9.pdfIn PDF document text
    • https://cdn.sqhk.co/jaziwuke/XahNEhd/ufc_253_costa_tko.pdfIn PDF document text
    • https://cdn.sqhk.co/rilixuzewiv/ciedZqk/nadajif.pdfIn PDF document text
    • http://blancer.xyz/how_do_i_make_him_fall_in_love_with_me_againk4am4.pdfIn PDF document text
    • https://fusavufotopos.weebly.com/uploads/1/3/4/6/134634064/funom.pdfIn PDF document text
    • http://merovew.xyz/83566133337zth08.pdfIn PDF document text
    • https://soxigirotum.weebly.com/uploads/1/3/0/9/130969819/7741627.pdfIn PDF document text
    • https://katudiwuf.weebly.com/uploads/1/3/6/0/136006549/3918674.pdfIn PDF document text
    • http://nibelv.xyz/ejercicios_ecuaciones_de_primer_grado_2_eso5nqmh.pdfIn PDF document text
    • https://fiwozipuwawew.weebly.com/uploads/1/3/0/8/130814157/eb93bcb2.pdfIn PDF document text
    • https://nikonewakudofu.weebly.com/uploads/1/3/2/3/132303001/rorosobimumujaluluj.pdfIn PDF document text
    • https://cdn.sqhk.co/xesozugis/idRgjyo/49281038491.pdfIn PDF document text
    • https://tapevasazizile.weebly.com/uploads/1/3/1/4/131454670/8098976.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e2e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2E0 5192 bytes
SHA-256: 2c5762c31766231ff799b559faa2863cfa604339bcf429df23367c9c4afb4266
font_01_sfnt_off0000f482.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF482 11084 bytes
SHA-256: cbec978e9d2b5cc19caa7ac993cf7076382f0d36cabf9d04a4090466e35b103a

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