Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd6b63d4168a7fcc…

MALICIOUS

PDF

39.4 KB Created: 2020-07-08 21:15:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-24
MD5: bf0be7c23cb038163dc0e63d2c71b655 SHA-1: 50ef5d5975520a8c37541958c704def9c38b26be SHA-256: cd6b63d4168a7fccf7304c4738e8a9945f67de3141fe6c86fd16e412d0d29267
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded links designed to redirect users to external sites, masquerading as legitimate downloads. The primary redirector URL is https://ttraff.cc/wb?keyword=greek%20new%20testament%20pdf%20download, which is flagged as malicious. The document body also contains a large number of SEO-optimized PDF links, suggesting a link farm or SEO poisoning tactic to distribute malicious content.

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.cc/wb?keyword=greek%20new%20testament%20pdf%20download In PDF document text
    • http://files.betsyleebaileymusic.com/uploads/1/3/2/7/132740564/kimamixorofitu-mizuziximexaxe-gikagurafe-zadawo.pdfIn PDF document text
    • http://files.marzipan-media.com/uploads/1/3/1/8/131856184/7584706.pdfIn PDF document text
    • http://files.fittingroomligonier.com/uploads/1/3/0/8/130814672/sodumavasoso_sugenufefigu_tinivotosuna_sezomojodupebe.pdfIn PDF document text
    • http://files.bowsandballcaps.com/uploads/1/3/1/6/131606475/8185471.pdfIn PDF document text
    • http://files.salsaritaslexky.com/uploads/1/3/1/4/131407898/9916121.pdfIn PDF document text
    • http://files.momagictrophyhunts.com/uploads/1/3/1/4/131453725/9605774.pdfIn PDF document text
    • http://files.lavenderandleaves.com/uploads/1/3/1/4/131483154/9363493.pdfIn PDF document text
    • http://files.frankhagancontracting.com/uploads/1/3/2/6/132681404/zatamutofineve.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://sesuxegu.files.wordpress.com/2020/07/sovogup.pdfIn PDF document text
    • https://notetel.files.wordpress.com/2020/06/41390789374.pdfIn PDF document text
    • https://xojusapa.files.wordpress.com/2020/06/43486641523.pdfIn PDF document text
    • https://jimuzod.files.wordpress.com/2020/07/91485088400.pdfIn PDF document text
    • https://kateminani.files.wordpress.com/2020/06/rivela.pdfIn PDF document text
    • https://desesab.files.wordpress.com/2020/07/bitelojolijur.pdfIn PDF document text
    • https://ganogeduza.files.wordpress.com/2020/07/zovotexebipiva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86372263330.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/39858795743.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/luzugojozawok.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000586a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x586A 5112 bytes
SHA-256: 80655f7992123bff8a6cce347a45e290ade4da9c651d80e510d9d888d4cd748f
font_01_sfnt_off000069cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69CD 11408 bytes
SHA-256: 5cd4f3e22659248b53d084b85d6cdec0ed98d2acf5bc010cfa63d423b6424334

Open this report in the interactive analyzer, or submit your own file for analysis.