Malicious PDF — malware analysis report

Static analysis result for SHA-256 48e2abae69d6f459…

MALICIOUS

PDF

40.0 KB Created: 2020-11-06 10:49:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: fb178b090a41191259d5f8f50cc7bf73 SHA-1: d01961a61e77b29e9a0d69ff1efd18606688c7ae SHA-256: 48e2abae69d6f4598e8cf10daf51d85faf65debaabbcafbe5567a0505c2326da
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://traffking.ru/123?keyword=private+society+cosmetic In PDF document text
    • https://mipolapepel.weebly.com/uploads/1/3/4/3/134395859/wigodaj_rusal_mutekadavo.pdfIn PDF document text
    • https://golasokovefo.weebly.com/uploads/1/3/4/4/134490481/7b7f140b6e73.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365580/normal_5f86f5b74122a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412606/normal_5f9575ee6f078.pdfIn PDF document text
    • https://mumixopid.weebly.com/uploads/1/3/1/8/131872042/7db4ea8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390324/normal_5f9c8b69b050a.pdfIn PDF document text
    • https://gofobodobade.weebly.com/uploads/1/3/4/4/134444694/8816f5fca5a7e27.pdfIn PDF document text
    • https://zelezolure.weebly.com/uploads/1/3/4/3/134315846/6826057.pdfIn PDF document text
    • https://megadezatesaram.weebly.com/uploads/1/3/0/7/130776649/jidimut.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446923/normal_5fa34700f16ca.pdfIn PDF document text
    • https://fatatarulawug.weebly.com/uploads/1/3/4/4/134474158/jajokimero.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/zirojopemup/zepefefugurawibofupifemu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/8905/5910/files/71440651967.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/4272/4759/files/1030295005.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/afi_91-_203.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_off00005e31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E31 5076 bytes
SHA-256: 8c9802f80b6d692a89974abae7a8e1d2f050ac083c6795763e8e7eeb45e3cc46
font_01_sfnt_off00006f6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F6E 10532 bytes
SHA-256: 238724a84f24974d4c3f3a8987a90d5dce5400a03fee7a4c5c7672829b470675