Malicious PDF — malware analysis report

Static analysis result for SHA-256 49d0c96e5802046f…

MALICIOUS

PDF

41.0 KB Created: 2020-09-29 21:20:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 42472023a8cd83da40ea73e4f340921b SHA-1: 40d972423a56a7e79d2ddeb8ed55437be7935528 SHA-256: 49d0c96e5802046fc743c4576ebca40bccdd4874995cf0b5951e25413550991f
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic firing indicates that the PDF links to known malicious redirector infrastructure, specifically 'https://ggtraff.ru/strik?keyword=hindu+boy+names+starting+with+r+pdf'. This suggests the document is part of an SEO poisoning or link farm attack, designed to lure users to malicious sites. No scripts were extracted from this sample.

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/strik?keyword=hindu+boy+names+starting+with+r+pdf In PDF document text
    • http://files.axpcbd.com/uploads/1/3/1/4/131437253/tapesixituraz.pdfIn PDF document text
    • http://vavebo.theplayfulpalate.com/uploads/1/3/1/4/131454165/3152396.pdfIn PDF document text
    • http://jatulag.bradysk9fund.com/uploads/1/3/1/6/131606407/rafusemateva.pdfIn PDF document text
    • http://kodekig.jecdevelopment.com/uploads/1/3/1/4/131408371/xerudo.pdfIn PDF document text
    • http://files.amcbfoundation.org/uploads/1/3/2/7/132710794/5052949.pdfIn PDF document text
    • http://zoxetiseg.rebeccakightlinger.com/uploads/1/3/1/8/131856235/04e484256.pdfIn PDF document text
    • http://buroji.setauketmeadows.com/uploads/1/3/1/3/131379256/silovijudo-kejidabopekojod-masijokivedore-kewexunalukuw.pdfIn PDF document text
    • http://majod.melissaparkvoshell.com/uploads/1/3/1/4/131407089/wugijepi.pdfIn PDF document text
    • http://files.key2evolve.com/uploads/1/3/1/3/131378990/4207032.pdfIn PDF document text
    • http://dewumaz.rivertonprairiedog.com/uploads/1/3/1/1/131164131/8e6a7b90b76.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/cb91e25b-84c7-4d44-bb12-831b9718e920/2926307077.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b87fd416-0580-4f82-bc68-b17c1c6f8739/12122914170.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/56eaa279-648b-4924-a97f-422e95f8e02a/88697862528.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/db248a2f-0d88-470b-9a6d-098d167a1fe3/xugolodezaxomadusi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3358/4035/files/the_three-body_problem_cixin_liu_epu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4162/8053/files/tipos_de_psicosis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6885/8272/files/adobe_illustrator_cc_2017_tutorials.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_off000060ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60CE 5720 bytes
SHA-256: 5524d6f210676e0daa52abfcc4ca0594b6c40631304425aa5b4b5934a814620c
font_01_sfnt_off00007427.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7427 10180 bytes
SHA-256: b77c3bf38da41911bb1d4726c5a6c104650af158d193deb5d8d339a6b2dccb1e