Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c6ca611f0edf446…

MALICIOUS

PDF

41.9 KB Created: 2020-03-25 11:31:38 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 9db6d8b0fa2781d0011f95c9b0d6ce4d SHA-1: 76af7431e5630d94d272877cb8747ba81473c0c4 SHA-256: 0c6ca611f0edf446843d7fc854c2733abb39b23baf3fcf438d4e9d5220a9b722
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting an attempt to manipulate search engine results or redirect users to malicious content. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains URLs that are consistent with this link-farming behavior.

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://gotvapestache.com/uploads/1/3/0/7/130739326/130739326.html#california+gov+code+1090
    • http://specialeventstaff.com/uploads/1/3/0/5/130551279/57e139d61070.pdf
    • http://nathaniel-e-yamamoto.com/uploads/1/3/0/3/130379397/punaxagukekuxu.pdf
    • http://yogahubmelbourne.org.au/uploads/1/3/0/2/130270873/68899.pdf
    • http://sciarrettafarms.com/uploads/1/3/0/4/130483748/9761369.pdf
    • http://thestorystone.net/uploads/1/3/0/9/130969855/bekujew-puvumofuwigoku.pdf
    • http://autopilotassistant.com/uploads/1/3/0/2/130271137/razofogefogi-makuvexefo-lezawok-gerokugimowem.pdf
    • http://www.thehowardgardnerschool.com/uploads/1/3/0/8/130813558/rakoxafa.pdf
    • http://michellemedoff.com/uploads/1/3/0/7/130775378/079d4aae028eb46.pdf
    • http://pagencies.com/uploads/1/3/1/0/131069870/jozesa_nemazirudazip_nixowiga_suzazum.pdf
    • http://www.brandimae.net/uploads/1/3/0/2/130289652/141b797aea8.pdf
    • http://mobilemechanicdagenham.com/uploads/1/3/0/5/130590054/4329518.pdf
    • http://morrowproperties.net/uploads/1/3/0/5/130550938/fidifibofujub.pdf
    • http://www.pagessupersuds.com/uploads/1/3/0/9/130969647/sudogi-fulezu-tutirimewirado.pdf
    • http://rentprivatemoney.com/uploads/1/3/0/2/130291592/penowej_galow.pdf
    • http://sorsmarketing.com/uploads/1/3/0/7/130775714/8618502.pdf
    • http://pinjabruun.com/uploads/1/3/0/2/130291371/vanafubibavirak_gavowi_wirezuvixijem_labonozezenizo.pdf
    • http://shubhjai.com/uploads/1/3/0/6/130639815/rilavetaveve.pdf
    • http://www.isiduke.org/uploads/1/3/1/0/131070846/dcf564.pdf
    • http://protectormedical.com/uploads/1/3/0/4/130477915/fezagukeridegi.pdf
    • http://nihaoskiescalls.com/uploads/1/3/0/2/130289460/mizosavekanani_voselobepul_xatudizivan_vowugapa.pdf
    • http://www.nawahte.com/uploads/1/3/0/9/130969176/86954.pdf
    • http://paddlebp.com/uploads/1/3/0/7/130739459/xanemog.pdf
    • http://alexenger.com/uploads/1/3/0/5/130589409/1793442.pdf
    • http://education-cannabis.com/uploads/1/3/0/3/130379424/2477618.pdf
    • http://32shadesofgreen.com/uploads/1/3/0/4/130483909/4915774.pdf
    • 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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007aa9.bin
d6f75e14e4878d5d1882dd4783b12dc7e927a52a5572cc31ce0c167096409446		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AA9 7980 bytes

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