Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e92b55a875f08bb…

MALICIOUS

PDF

63.9 KB Created: 2021-02-13 13:22:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: ca47cc8332e6ad7a4f69e361352dce38 SHA-1: 970be638b43470f6745b27ae7ad5eb9344e6d45e SHA-256: 2e92b55a875f08bb6454fab5935612160853f63cb8365d4db40c6d591bbd7845
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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://seumenha.ru/aws?utm_term=warranty+card+format+in+excel PDF link annotation
    • http://wspring.space/scaled_agile_epic_template99vpm.pdfIn PDF document text
    • https://zitadinenere.weebly.com/uploads/1/3/1/8/131871439/5882467.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465924/normal_601073a3dcb5d.pdfIn PDF document text
    • https://penogefuf.weebly.com/uploads/1/3/2/7/132740618/netulezaba_judimikoxewigur.pdfIn PDF document text
    • http://uspehdnyaaxyz.xyz/60351784513mn3w6.pdfIn PDF document text
    • http://idealica-ufficiale.site/akn_beden_dili5ad0p.pdfIn PDF document text
    • http://rodina38.ru/77656760318jh0iy.pdfIn PDF document text
    • https://jexepasevotapak.weebly.com/uploads/1/3/1/6/131606223/tasenepebonatetop.pdfIn PDF document text
    • https://gasagadivegolix.weebly.com/uploads/1/3/4/4/134488570/82ca8efd9787.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387826/normal_5fc9b1e2cb537.pdfIn PDF document text
    • https://nedetuvozuwe.weebly.com/uploads/1/3/4/6/134699612/3be3dd9afafbdc0.pdfIn PDF document text
    • https://kikafizujugu.weebly.com/uploads/1/3/4/0/134012642/1b8461092c20.pdfIn PDF document text
    • http://policyhelpcenter.com/71873852799cdzl.pdfIn PDF document text
    • http://normaa-id.com/watetepegabesabak11nv.pdfIn PDF document text
    • http://lifeshop.pro/kemipujoviwojaxuhb6j9.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/petikamov/pefazakesowok.pdfIn PDF document text
    • https://s3.amazonaws.com/gadumagabusodel/97238347846.pdfIn PDF document text
    • https://s3.amazonaws.com/jedadokuti/wexipigoxorewotimoser.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_off0000c02d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC02D 5172 bytes
SHA-256: cc489145fd052ab7a8e48931b837db103e7bb7c785e909de14767ef7ee742a88
font_01_sfnt_off0000d1cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1CB 9808 bytes
SHA-256: 0357881d89bcc8a96c977624a2c70e6fe54fa8c3061887becaed5685b2a86cf0