Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0ad3e14a9c1a7ec…

MALICIOUS

PDF

45.1 KB Created: 2020-10-29 19:04:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: d95e6583f676755e8ae1bfd7d0d0312e SHA-1: 873181a19fa856e9775612fc7ab942e546eee62c SHA-256: e0ad3e14a9c1a7ece9cd3e2cb8577d7724aef92d3edc3f966dc49ce84e2ac64e
184 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains a large number of embedded links, many of which point to disposable hosting or known malicious redirectors. The primary URL, https://ggtraff.ru/aws?keyword=disposable+underwater+camera, is identified as a malicious redirector. This indicates the document's purpose is to lure users to malicious sites, likely for further exploitation or phishing. No scripts were extracted, but the structure suggests a link farm designed for SEO manipulation or malicious redirection.

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://ggtraff.ru/aws?keyword=disposable+underwater+camera In PDF document text
    • https://finazodaxuvoj.weebly.com/uploads/1/3/2/6/132682535/zefomojozur_gegip_mereve.pdfIn PDF document text
    • https://rajaxamakato.weebly.com/uploads/1/3/2/3/132302926/zonifipifene_bofopifebodupar_semafaxoxovesuw_zafudidajol.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374364/normal_5f8a802a0157c.pdfIn PDF document text
    • https://vonubaxuted.weebly.com/uploads/1/3/1/4/131452839/ad83b4228.pdfIn PDF document text
    • https://dumunevebule.weebly.com/uploads/1/3/0/8/130874169/7133810.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383147/normal_5f935ecbcdfa7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373259/normal_5f8dfa0a4668a.pdfIn PDF document text
    • https://wepeweguwerixum.weebly.com/uploads/1/3/1/8/131856135/2993125.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366389/normal_5f87361a12995.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416940/normal_5f95ca496a93d.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/xetasif/genapuxodifisodikipa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1fdf6304-fcb3-47d3-b02e-a1088dcd4c22/ziruzeboluga.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8cf65af6-7d96-4878-a5ed-10fd83f31da3/vuwaxeroxuwitafanemefej.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/zexoxik.pdfIn PDF document text
    • https://s3.amazonaws.com/dukajevo/16667724016.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_off00006f99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F99 5452 bytes
SHA-256: cf5f2a425e5b74060082eac1e13512828f82016214f77a961448d560fed04264
font_01_sfnt_off0000821e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x821E 11092 bytes
SHA-256: f3951bd4946cb0f9433b5c61617f692c0ceab46d0aa3a3ca06e6bf0a9de0b638

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