Malicious PDF — malware analysis report

Static analysis result for SHA-256 37f029869b1a39f1…

MALICIOUS

PDF

67.5 KB Created: 2021-03-02 22:08:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: f4a0c5563ce29f0697365ac3834be754 SHA-1: c215c20dba2d196f6cf2e7b33a3f06eafc2c1005 SHA-256: 37f029869b1a39f131efa6f97d96b475bbe426ac2233019c8011b338e25ec1ab
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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+reset+tws+airpods+pro PDF link annotation
    • http://fujigukatujewu.medianewsonline.com/rainsoft_water_filter_parts.pdfIn PDF document text
    • http://vorakumezaxof.mygamesonline.org/fovafumeleja.pdfIn PDF document text
    • http://koxivesuvif.mypressonline.com/what_is_the_timeline_of_the_walking_dead_world_beyond.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471512/normal_5ffae4cacb738.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4506200/normal_601bc7afe2a71.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421365/normal_6028f9a52ec16.pdfIn PDF document text
    • https://zadidiboz.weebly.com/uploads/1/3/5/2/135295834/9089303.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413702/normal_5ff8de1b42b11.pdfIn PDF document text
    • http://lugabev.mygamesonline.org/dogogorirediba.pdfIn PDF document text
    • https://kujofajatoniw.weebly.com/uploads/1/3/1/4/131406813/9891a09fca0f.pdfIn PDF document text
    • https://givigifug.weebly.com/uploads/1/3/4/8/134858651/3906377.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/mixanaz/kotor_walkthrough_manaan.pdfIn PDF document text
    • https://s3.amazonaws.com/kudowo/pabukamegif.pdfIn PDF document text
    • http://vawerudarasikow.myartsonline.com/panasonic_th_42px60u.pdfIn PDF document text
    • http://magegefopo.atwebpages.com/what_kind_of_text_structure_is_a_recipe.pdfIn PDF document text
    • http://wijixetav.epizy.com/vaxodofu.pdfIn PDF document text
    • http://vikogen.epizy.com/patupexadekabidalerevipi.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_off0000cda6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDA6 4976 bytes
SHA-256: a4ee4bcf2b034f20b474caefb0185af1ce00035c65c2128e41e7d5db3349d6ff
font_01_sfnt_off0000deae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEAE 10148 bytes
SHA-256: cd0ca5e738ba379a2ff7277d401a2a480dbbbb4432790f9bdbf8465494b934ba