Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9e16589ad652d93…

MALICIOUS

PDF

53.3 KB Created: 2020-03-22 04:04:10 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 889e2ee95f9e89815c4da79db732548e SHA-1: a621124370a7009e6afb26ec9098b7225012d67c SHA-256: b9e16589ad652d9328a4e817a5c6af2165bd610f02302739bbe159ee6d607682
96 Risk Score

Malware Insights

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

The PDF document contains a heuristic firing indicating a link farm with 30 external links, predominantly hosted on 'www.felderandbrent.com'. The document body also contains a URL pointing to 'disastersupply.org'. These findings suggest the document's primary purpose is to redirect users to a network of external sites, likely for SEO manipulation or to serve malicious content. 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://disastersupply.org/uploads/1/3/0/3/130324005/130324005.html#legal+age+of+consent+across+states PDF link annotation
    • http://www.felderandbrent.com/uploads/1/3/0/2/130291539/novuwur-sarepo-gajomuzuxoza.pdfIn PDF document text
    • http://gentlehandsnc.com/uploads/1/3/0/4/130488696/9042162.pdfIn PDF document text
    • http://dimesm.com/uploads/1/3/0/8/130874384/7727534.pdfIn PDF document text
    • http://mta-sts.mx.georgiavinegar.com/uploads/1/3/0/6/130620370/kobejuwedaki-gigonuvev.pdfIn PDF document text
    • http://mx.capture-the-light.com/uploads/1/3/0/5/130545382/6a7a0512dd3e.pdfIn PDF document text
    • http://philipdeaver.com/uploads/1/3/0/2/130272577/941651.pdfIn PDF document text
    • http://voyager-balloons.com/uploads/1/3/0/7/130739043/sagofuxokelotofolu.pdfIn PDF document text
    • http://labratcosmetics.com/uploads/1/3/0/3/130323743/3119526.pdfIn PDF document text
    • http://stallbroker.com/uploads/1/3/0/4/130476053/tutedexejinu.pdfIn PDF document text
    • http://www.298472833813750142.com/uploads/1/3/0/2/130289653/xetakofen-jibobag-wunasige-gekonik.pdfIn PDF document text
    • http://cwatchcorp.com/uploads/1/3/0/8/130813366/vesenivawa.pdfIn PDF document text
    • http://www.empirelimited.co.uk/uploads/1/3/1/0/131070327/24b73.pdfIn PDF document text
    • http://resoluteenviromental.com/uploads/1/3/0/8/130874526/wutotixanisare.pdfIn PDF document text
    • http://www.corvedo.com/uploads/1/3/0/6/130603989/rurotowegu.pdfIn PDF document text
    • http://starfiresaga.com/uploads/1/3/0/7/130776343/ridoso.pdfIn PDF document text
    • http://npcpasolutions.com/uploads/1/3/0/7/130775012/diveba.pdfIn PDF document text
    • http://balaiodegarfos.com/uploads/1/3/0/7/130775922/webizipolepubi-bonozurev.pdfIn PDF document text
    • http://www.thelittleballetschool.com/uploads/1/3/0/6/130603903/tovorisipago.pdfIn PDF document text
    • http://fixmeupp.com/uploads/1/3/0/8/130814584/kefiwigu_fixagux_silinogevaza.pdfIn PDF document text
    • http://alissaskorikofficial.com/uploads/1/3/0/6/130621628/donupitakojoxasi.pdfIn PDF document text
    • http://natethehitmaker.com/uploads/1/3/0/2/130271099/farifevotedozi.pdfIn PDF document text
    • http://cobberdogbreedersaustralia.org/uploads/1/3/0/3/130313320/2a2ee3b94d0a8f.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
🗂 Part of campaign: christmasiscominghome.ca 4 samples

Related samples 2

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_off0000a6ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA6AC 8352 bytes
SHA-256: 80a0232b11f95d724e803eeb662d47f8b496fd8103f012d59d9bfa60157bdb35

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