Malicious PDF — malware analysis report

Static analysis result for SHA-256 7eccb8fe342d949d…

MALICIOUS

PDF

38.5 KB Created: 2020-05-17 15:18:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-15
MD5: 2739a6ab293bf121287b88934359a6a4 SHA-1: 30262c2ee75dd8a1e181e0b511234e841c517578 SHA-256: 7eccb8fe342d949d0806f85f12e4fed228445c159cb44aa84b77d0fea7ef5f04
96 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified as a 'link farm', pointing to various PDF files hosted on different domains. This suggests a tactic to manipulate search engine results or to distribute a large volume of content, potentially malicious. While no scripts were explicitly extracted, the PDF structure and embedded URLs indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://collectivedreamllc.com/uploads/1/3/0/8/130874433/130874433.html#banner+enrollment+reports PDF link annotation
    • http://the-mystery-box-2.com/uploads/1/3/1/3/131380942/f8fc4.pdfIn PDF document text
    • http://ajacf.com/uploads/1/3/1/4/131454420/mepitoruxapajopudit.pdfIn PDF document text
    • http://leasemyrv.com/uploads/1/3/0/6/130621490/fesufuzedudexa.pdfIn PDF document text
    • http://epiclivinglifecoaching.com/uploads/1/3/1/4/131406687/5237443.pdfIn PDF document text
    • http://alluringoccasionsbybianca.com/uploads/1/3/1/3/131383975/gexuvo.pdfIn PDF document text
    • http://hannahbwellness.com/uploads/1/3/0/8/130814250/linisudod.pdfIn PDF document text
    • http://wasbc.net/uploads/1/3/0/6/130622036/wagavefope.pdfIn PDF document text
    • http://ernestmodarelli.net/uploads/1/3/1/4/131407630/safasugajefodawirali.pdfIn PDF document text
    • http://outex.lv/uploads/1/3/0/7/130739087/rabiloxekopubiwu.pdfIn PDF document text
    • http://karlamhughes.com/uploads/1/3/0/5/130545698/1404165.pdfIn PDF document text
    • http://polarexpressne.com/uploads/1/3/0/6/130621240/1160868.pdfIn PDF document text
    • http://anniegarrity.com/uploads/1/3/0/4/130489262/1520794.pdfIn PDF document text
    • http://studio-backstage-paris.com/uploads/1/3/0/3/130313555/9001479.pdfIn PDF document text
    • http://tridentinfosec.info/uploads/1/3/0/8/130874394/soxowomuv.pdfIn PDF document text
    • http://spottycatapps.com/uploads/1/3/1/3/131381031/a8886.pdfIn PDF document text
    • http://spalmedia.com/uploads/1/3/0/5/130539205/powowubufirageju.pdfIn PDF document text
    • http://cheapprintuk.com/uploads/1/3/0/2/130289311/mituvesateb.pdfIn PDF document text
    • http://olddogsreinetwork.com/uploads/1/3/1/6/131606603/90654deb.pdfIn PDF document text
    • http://jnbpanadero.com/uploads/1/3/0/6/130639231/8712676.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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 4

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

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A43 10596 bytes
SHA-256: 43ca420c76cd748435b9eac57db2a9cc376a4c7a03101b8ffe06df676c440cf1

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