Malicious PDF — malware analysis report

Static analysis result for SHA-256 1602d41b1d06f11c…

MALICIOUS

PDF

48.7 KB Created: 2020-11-06 02:23:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 0dadead619ffb57aaeac4f178b0a3de4 SHA-1: 1ad572f1e3465d96b256a75c138f763035be925b SHA-256: 1602d41b1d06f11ca1a4eddcb5f97d316264df226fe3f017debcb189a45b3def
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/aws?keyword=ffxiv+alchemist+leveling+guide In PDF document text
    • https://juliraviwuziw.weebly.com/uploads/1/3/4/2/134267057/7689511.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369909/normal_5f8ba8e3687ce.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374703/normal_5fa1cac542e62.pdfIn PDF document text
    • https://suzokapiwewop.weebly.com/uploads/1/3/4/3/134351383/3deb6.pdfIn PDF document text
    • https://bizetuxerupa.weebly.com/uploads/1/3/0/8/130873791/6241819.pdfIn PDF document text
    • https://fobedixosofano.weebly.com/uploads/1/3/4/3/134377241/7673967.pdfIn PDF document text
    • https://jutawalafomas.weebly.com/uploads/1/3/4/3/134316275/7206068.pdfIn PDF document text
    • https://pazuvokase.weebly.com/uploads/1/3/4/6/134615635/bixalifugiwi-vadevasonovo.pdfIn PDF document text
    • https://gidexexururetus.weebly.com/uploads/1/3/4/5/134505918/bixelogovemebi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/a47646f8-cf96-4397-b18f-dd33c7ae302a/98645260176.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9d9fbbb2-ce2f-49b5-95e5-8cd3e37d437b/xerifewex.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_off00007ecf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7ECF 5420 bytes
SHA-256: c8845f6d4a4abab97f31a4fdc9a64ffe0f19777aaec30fa1367c26feaa41f36f
font_01_sfnt_off0000912a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x912A 10364 bytes
SHA-256: c311c37e87066e56373b28826d3ee98ab4066c400139f829415bc1a2ed64cc09