Malicious PDF — malware analysis report

Static analysis result for SHA-256 89a874712d4cb666…

MALICIOUS

PDF

44.9 KB Created: 2020-03-22 13:46:56 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-04
MD5: d04db22711600fa9648017a0d2f649db SHA-1: c1674392c3895b2df5667dba5bb9cd2b57ac9bd9 SHA-256: 89a874712d4cb6663edc45ae946692e5d4c1d3aba38dbb2ef4354ce26b52b12c
96 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded external links, identified as a 'PDF_SEO_LINK_FARM' heuristic. The primary purpose appears to be directing users to a multitude of external websites, likely for malicious purposes such as hosting further exploits or phishing content. No scripts were extracted, but the extensive link farm suggests a coordinated effort to distribute malicious content or manipulate search engine results.

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://deborahsnider.com/uploads/1/3/0/2/130289443/130289443.html#george+banks+songs+in+mary+poppins+jr PDF link annotation
    • http://www.firecheats.net/uploads/1/3/0/6/130604255/pabojuj.pdfIn PDF document text
    • http://curvo.org/uploads/1/3/0/4/130488759/2377409.pdfIn PDF document text
    • http://dubowpsychology.com.au/uploads/1/3/0/5/130590525/wogage.pdfIn PDF document text
    • http://theince.com/uploads/1/3/0/8/130814432/watarir.pdfIn PDF document text
    • http://engagingpeace.net/uploads/1/3/0/6/130620936/2250689.pdfIn PDF document text
    • http://www.madeinhaitiforhaiti.com/uploads/1/3/0/5/130590741/4247608.pdfIn PDF document text
    • http://noteworthyatms.net/uploads/1/3/0/3/130323750/388544.pdfIn PDF document text
    • http://dahlstedtfamilyproperties.com/uploads/1/3/0/6/130639463/645d8df0c50.pdfIn PDF document text
    • http://natemalone.com/uploads/1/3/0/6/130639424/dufenozepazegoloj.pdfIn PDF document text
    • http://www.idahoupc.com/uploads/1/3/0/7/130740169/wijedudimiwezo.pdfIn PDF document text
    • http://www.optimise-me.com/uploads/1/3/0/2/130289411/718c0aeccb1e.pdfIn PDF document text
    • http://lakelandfamilydentist.com/uploads/1/3/0/8/130874629/legurigezesagafogona.pdfIn PDF document text
    • http://arizonaapartmentbrokers.com/uploads/1/3/0/4/130494172/monata-sewefujirizesef-lawosebuduva-bupewiguxoz.pdfIn PDF document text
    • http://hostmaster.smartlappenfestivaloldenzaal.nl/uploads/1/3/0/7/130776268/39324d5cc.pdfIn PDF document text
    • http://www.bakedbythelake.com/uploads/1/3/0/6/130620919/xazibupojix.pdfIn PDF document text
    • http://www.we3web.com.au/uploads/1/3/0/4/130488812/dipeduwule.pdfIn PDF document text
    • http://www.livelovegrowfromthegroundup.com/uploads/1/3/0/7/130739250/kenunetutozoti.pdfIn PDF document text
    • http://myhypecheck.com/uploads/1/3/0/7/130776592/a33038.pdfIn PDF document text
    • http://mybigfatgujjuwedding.com/uploads/1/3/0/5/130588658/9234367.pdfIn PDF document text
    • http://seattle2025.org/uploads/1/3/0/6/130604996/pewaxikaluba_gibadijetu_wifej_selokepune.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

Related samples 3

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_off0000880b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x880B 7688 bytes
SHA-256: 3b9c0308e133aadf5f520ad543edd68b77ecb5ac20eb81d11c24a7345af4e5d0

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