Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e9afe177cc41959…

MALICIOUS

PDF

51.3 KB Created: 2020-04-01 14:37:38 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: f31fd3f7231e8e72a56f8706d774b69a SHA-1: f2623e3b6a1944d6e5bf36d4a0e366c8a2a00815 SHA-256: 4e9afe177cc4195917422a106b0aae8a3ba63984c1c1557d32496c7de968f40a
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or redirection to malicious content. The ML classifier strongly flagged this PDF as malicious. The document body contains a mix of seemingly random text and URLs, including the primary URL http://kenraye.net/uploads/1/3/0/5/130543761/130543761.html#password+kartu+equip+yugioh+ps1, which appears to be part of the lure. 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://kenraye.net/uploads/1/3/0/5/130543761/130543761.html#password+kartu+equip+yugioh+ps1
    • http://mahmutkaptan.com/uploads/1/3/0/5/130539660/6878092.pdf
    • http://groupegmt2000.com/uploads/1/3/0/6/130604014/0dbce.pdf
    • http://alisondeutsch.info/uploads/1/3/1/3/131380043/tepemorukabetepe.pdf
    • http://alicia-stop-n-shop.com/uploads/1/3/1/0/131070237/df8a2.pdf
    • http://myplacetorest.com/uploads/1/3/0/4/130489102/folelijokak-zumavabo-zinatejuzo-kebimagiso.pdf
    • http://okanaganartisans.ca/uploads/1/3/0/4/130479044/1491882.pdf
    • http://introactivism.com/uploads/1/3/0/7/130775181/jirazulel.pdf
    • http://petraprintworks.com/uploads/1/3/1/3/131383721/9771f67.pdf
    • http://chelseafitnessnyc.com/uploads/1/3/0/6/130604585/f1937d4.pdf
    • http://boozybotanicalskc.com/uploads/1/3/0/5/130550723/punineduga_xegija_pudivezinimaxi.pdf
    • http://thepowersportslab.com/uploads/1/3/0/3/130323335/bidunar.pdf
    • http://outandequalseattle.org/uploads/1/3/0/6/130639746/davirovomafo.pdf
    • http://jcwsportstherapist.com/uploads/1/3/0/5/130550803/37a7b7f.pdf
    • http://simplyessentiallife.com/uploads/1/3/0/8/130874652/tejulawewak-miwonegajawesip-xorev.pdf
    • http://zafaranis.com/uploads/1/3/0/4/130475966/785311.pdf
    • http://unfinishedclayshopping.net/uploads/1/3/0/2/130271001/zosofewolorezat-redonowe-bavifumaziwotu-kinixojizizinet.pdf
    • http://monipirie.com/uploads/1/3/0/5/130588920/487f14a.pdf
    • http://cap-trading.com/uploads/1/3/1/4/131437756/ruvajajebidere.pdf
    • http://manosamistosas.org/uploads/1/3/0/6/130604536/xatowopi.pdf
    • http://cucharalodge.com/uploads/1/3/0/5/130547069/xilanadikovumef-desonir-kijaboliduwara-xonazavemejik.pdf
    • http://wrsni.com/uploads/1/3/0/2/130287799/6893766.pdf
    • http://mlfickcourtlandkindergarten.com/uploads/1/3/0/5/130589240/9302474.pdf
    • http://www.randmc2019.com/uploads/1/3/0/9/130969280/4386844.pdf
    • http://resignralph.org/uploads/1/3/0/5/130540501/a519ba1a.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_off00009cb4.bin
7f9ff446225a0868d5cbc964065d2a9bb101556b758aa19e44ca4d80a8f95c08		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9CB4 8460 bytes

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