Malicious PDF — malware analysis report

Static analysis result for SHA-256 19da344d17972ed8…

MALICIOUS

PDF

41.8 KB Created: 2020-03-30 20:04:51 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-08-10
MD5: 8b3d4698cfbf94a3540e6cba84e23938 SHA-1: b6805eaf2080d6f15b65c30f7f877fa86fe236de SHA-256: 19da344d17972ed86270d7ee63b7d61d9af1e66898e7dcdef8728473705e8c12
96 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, many of which appear to be part of a link farm. The embedded document body text, though partially corrupted, contains a URL that is also present in the list of external links. The primary purpose appears to be directing users to these external sites, likely for SEO manipulation or to serve as a staging ground for further malicious activity.

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://teesreef-aquatics.com/uploads/1/3/1/3/131379761/131379761.html#palabras+on+ingles PDF link annotation
    • http://alisoncommercialresidential.com/uploads/1/3/0/6/130604878/1352855.pdfIn PDF document text
    • http://ga400portfoliofinancing.com/uploads/1/3/0/5/130544384/lezakagexim.pdfIn PDF document text
    • http://dehoniansocialjustice.com/uploads/1/3/1/1/131164266/xilen.pdfIn PDF document text
    • http://nubecore.com/uploads/1/3/0/5/130590438/2990870.pdfIn PDF document text
    • http://paradiseonwheelz.com/uploads/1/3/0/7/130739062/da034.pdfIn PDF document text
    • http://mybeautywhims.net/uploads/1/3/0/3/130379575/cab79.pdfIn PDF document text
    • http://soloforsenate.com/uploads/1/3/0/5/130546803/98c19a.pdfIn PDF document text
    • http://lookgood-feelgreat.com/uploads/1/3/1/3/131380558/1a25920a2bdba.pdfIn PDF document text
    • http://professionalschoice.net/uploads/1/3/0/5/130550748/rujijivaxip-zobezipipada.pdfIn PDF document text
    • http://ardinola.com/uploads/1/3/0/8/130814197/waxesesi-bodomeni.pdfIn PDF document text
    • http://marquearchitects.com/uploads/1/3/0/4/130476385/db01e3d3.pdfIn PDF document text
    • http://champthebulldog.com/uploads/1/3/0/6/130620892/zotuxalumepo.pdfIn PDF document text
    • http://chrysalisshop.com/uploads/1/3/1/3/131379965/657215.pdfIn PDF document text
    • http://justrewardsfordogs.com/uploads/1/3/0/4/130493389/dc3cf4d2f72.pdfIn PDF document text
    • http://protraint.com/uploads/1/3/0/7/130740212/813492.pdfIn PDF document text
    • http://oceansideinnva.us/uploads/1/3/0/4/130475918/2276801.pdfIn PDF document text
    • http://gulphin.com/uploads/1/3/0/6/130604173/edc5f.pdfIn PDF document text
    • http://waldwickdems.com/uploads/1/3/0/8/130873927/781192b0c3.pdfIn PDF document text
    • http://irish-party.com/uploads/1/3/0/9/130969594/4014160.pdfIn PDF document text
    • http://shalinisairi.com/uploads/1/3/0/6/130639054/4148068.pdfIn PDF document text
    • http://www.brostories.com/uploads/1/3/0/6/130621135/e9026dae471.pdfIn PDF document text
    • http://advocakes.com/uploads/1/3/0/2/130274145/denaji_supejikureje_xuxemarotoniluf_jumetimiduni.pdfIn PDF document text
    • http://aobassociates.com/uploads/1/3/0/7/130738738/1230824.pdfIn PDF document text
    • http://bridesmaidamerica.com/uploads/1/3/0/2/130287394/nuvenorogope.pdfIn PDF document text
    • http://passmankade.com/uploads/1/3/0/9/130969274/bamibiruzuparawivu.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 1

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_off000078e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78E9 8568 bytes
SHA-256: 4dfc7f35ab7ea6a7b8e10174254a2a3652e0868a3586c5572764187a55444138

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