Malicious PDF — malware analysis report

Static analysis result for SHA-256 8bef23e130e05c50…

MALICIOUS

PDF

34.5 KB Created: 2020-03-15 15:09:06 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-07
MD5: 88ce314f094ccd4946e7dab872900907 SHA-1: e5cb9a81a816bcadf176d03d6989f4164dcdeda8 SHA-256: 8bef23e130e05c5009c93d1ad3be93f8dd0cc05f302dbbd0072ba034ccf55c18
96 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body, though partially corrupted, contains the phrase 'Self driving car ppt' and references the wkhtmltopdf tool, suggesting a lure related to presentations. The primary function appears to be directing users to a network of websites, likely for SEO manipulation or to serve further malicious content.

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://agapiredesign-de.devsite-1.com/uploads/1/3/0/7/130740252/130740252.html#self+driving+car+ppt PDF link annotation
    • http://alcoholfree.beer/uploads/1/3/0/4/130488470/xarabezeraxajewane.pdfIn PDF document text
    • http://www.tgdevelopmentsco.com/uploads/1/3/0/5/130588762/nojujozu.pdfIn PDF document text
    • http://orangecountybestwindowtinting.com/uploads/1/3/0/2/130272928/xafubiruj.pdfIn PDF document text
    • http://adrisbeautystudio.com/uploads/1/3/0/4/130488338/zotolesakakugusekupo.pdfIn PDF document text
    • http://meridiancorporatecenter.com/uploads/1/3/0/6/130604654/muzovabo-ravetik-kilefuna.pdfIn PDF document text
    • http://sooperda.com/uploads/1/3/0/7/130739225/wuwokitabiguz-kebax.pdfIn PDF document text
    • http://jetravelers.com/uploads/1/3/0/2/130287914/4779f54a4d9.pdfIn PDF document text
    • http://saysumgood.com/uploads/1/3/0/2/130288893/fetipaboli.pdfIn PDF document text
    • http://webmail.fpcmorganton.org/uploads/1/3/0/6/130604182/7c048288d.pdfIn PDF document text
    • http://elpacifico2hoa.com/uploads/1/3/0/4/130477278/nesazofexox-muximodudir-fegatuda.pdfIn PDF document text
    • http://www.luscioushoney.com/uploads/1/3/0/9/130969871/wuvisobovapadek.pdfIn PDF document text
    • http://khaledelkhidergroup.com/uploads/1/3/0/6/130620788/2206171027d.pdfIn PDF document text
    • http://12ozboards.com/uploads/1/3/0/8/130815482/4d4914efe640.pdfIn PDF document text
    • http://wisteriapropertiessc.com/uploads/1/3/0/4/130476981/torepotuw-vusak-gufuw.pdfIn PDF document text
    • http://hjeminteriors.com/uploads/1/3/0/4/130483836/4353395.pdfIn PDF document text
    • http://daveict.com/uploads/1/3/0/7/130739363/vefeduzino.pdfIn PDF document text
    • http://www.7keysproduction.com/uploads/1/3/0/6/130640053/ed71651b4.pdfIn PDF document text
    • http://threeoms.com/uploads/1/3/0/2/130289063/53a709c6e42b.pdfIn PDF document text
    • http://ragfirearmsllc.com/uploads/1/3/0/2/130289397/kutusegutam.pdfIn PDF document text
    • http://dansmoncerveau.com/uploads/1/3/0/6/130621045/8663e2a37.pdfIn PDF document text
    • http://treadmill-tigers.com/uploads/1/3/0/5/130590298/gisate_furuwo_fizakiwuvulo.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 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_off00006147.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6147 6992 bytes
SHA-256: 1b6c20f3fe6e1e93948c657c5af665e6f212bc68117705578b99e16b8e388f02

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