Malicious PDF — malware analysis report

Static analysis result for SHA-256 6de4d474ecfb08eb…

MALICIOUS

PDF

41.2 KB Created: 2020-11-04 04:32:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 60c960c2b38da025693e7e6756266fa6 SHA-1: 0e0dc00d0cc661e2d79514a92e18c13ad1efc343 SHA-256: 6de4d474ecfb08ebd24b49885df5a59dfe2002d54d67acc6b8fedd36689cfed5
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://ttraff.me/123?keyword=leslie+tayne+complaints In PDF document text
    • https://cdn-cms.f-static.net/uploads/4368996/normal_5f933c956dacb.pdfIn PDF document text
    • https://rubisese.weebly.com/uploads/1/3/4/5/134589844/34585ebe60fb32a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424997/normal_5f9e808331072.pdfIn PDF document text
    • https://moxitasa.weebly.com/uploads/1/3/1/4/131454719/tuvijoxakam_fesutijo_forelene_bozabovigaki.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386605/normal_5f9d844456e52.pdfIn PDF document text
    • https://ranerenonosojib.weebly.com/uploads/1/3/1/4/131483420/e139dad2cc66680.pdfIn PDF document text
    • https://gusumadanu.weebly.com/uploads/1/3/2/6/132695601/539812.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369324/normal_5f96fc71ef926.pdfIn PDF document text
    • https://zabugusu.weebly.com/uploads/1/3/4/3/134311035/dotip.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/turip/photoshop_cracked_download_reddit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/7628/1032/files/nixuxaxewedesoxumuz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f04586cb-ce06-466e-a870-ecdc77eb1f47/93708182458.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/4376/4416/files/nopolapa.pdfIn PDF document text
    • https://s3.amazonaws.com/wajibile/absli_gms_plan.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005831.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5831 4812 bytes
SHA-256: d3eaffc0eda193c36b02920abcbe7adcef21199b1965e94be8faac7bed990c37
font_01_sfnt_off00006873.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6873 9708 bytes
SHA-256: 221e826f7a41300bb15052cc29747412ba12311e786a059cd217c02818283947
font_02_sfnt_off000089ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89AB 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176