Malicious PDF — malware analysis report

Static analysis result for SHA-256 865ea7ae897e13ed…

MALICIOUS

PDF

38.4 KB Created: 2020-04-23 20:16:56 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 0e92464dffbb17eee3e424838fb32211 SHA-1: dfbb0b13415f383bc75a8d3bb7414179d182b81b SHA-256: 865ea7ae897e13ed2159fc261a16606747f7c0dcd12dd439b112b512deefc80b
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also strongly flagged this PDF as malicious. The embedded URLs suggest a link farm or SEO manipulation tactic, potentially leading to malicious content or phishing sites. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://votelynnefugate.com/uploads/1/3/1/8/131858108/131858108.html#centrale+sans+rounded+bold+font+free
    • http://hydruscontrol.com/uploads/1/3/1/3/131381819/710b9287ca.pdf
    • http://noahcaseycounselling.com/uploads/1/3/0/7/130776535/leleposa.pdf
    • http://wwwdaimondholiday.com/uploads/1/3/0/6/130605292/liworilawovogotigim.pdf
    • http://shopmarae.com/uploads/1/3/0/2/130272241/3996147.pdf
    • http://goldstandarddrivertraining.com/uploads/1/3/0/2/130287943/rofosefafe_vurijexewegotom.pdf
    • http://gen3realty.com/uploads/1/3/0/8/130874292/8830398.pdf
    • http://t2designandconstruction.com/uploads/1/3/0/6/130604140/rexubuj_tijenebonuwivu.pdf
    • http://justleafwell.com/uploads/1/3/0/6/130620880/tenot.pdf
    • http://affinityinnerbalance.com/uploads/1/3/0/6/130620959/3758954.pdf
    • http://stevegoldforassembly.com/uploads/1/3/1/3/131398281/nipepa_nigusobofoxepe_tilewoxiboban.pdf
    • http://naturewildlifephotography.com/uploads/1/3/0/6/130604230/timukif-xubabaju-juzegemukigavik.pdf
    • http://prevencioncreativa.com/uploads/1/3/1/4/131437453/rexev.pdf
    • http://drleepsychic.com/uploads/1/3/0/6/130621383/9948048.pdf
    • http://cambridgeasparagus.org/uploads/1/3/1/6/131606408/palonogapavif.pdf
    • http://blazingfastfitness.com/uploads/1/3/0/6/130604672/04bd4aa3ace.pdf
    • http://stevegoldforass
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ac9.bin
490e3c1ed1d8e094e3913578e82926bc7b448d24cb3bd604956e9bc313a2036b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5AC9 7408 bytes
font_01_sfnt_off000077da.bin
d65752e558a9090157c9a1b02647c04d2680198cf9d52ff42939ef8ccbf7fabd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77DA 16084 bytes

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