Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd3827572bef222a…

MALICIOUS

PDF

41.5 KB Created: 2020-03-28 07:50:44 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 33c37fa19e24df68b6107de927e20f79 SHA-1: b29e578dc53236c3ca07e780bd2ab391470b4c2a SHA-256: dd3827572bef222a5b504db3ed9e86076db64286171f707275c29a1ea2923cd9
94 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which point to other PDF files hosted on different domains. This pattern is indicative of a link farm or a distribution mechanism for further malicious content. The ML classifier strongly supports the malicious verdict. No scripts were extracted, and the document body is largely unreadable binary data, making the URL analysis the primary driver for this assessment.

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://rebeccalaplacaattia.com/uploads/1/3/0/6/130604232/130604232.html#half+hanged+mary+poem+question+answers
    • http://justifiablefitness.com/uploads/1/3/0/5/130589391/d4b91e1550.pdf
    • http://prolexproperty.com/uploads/1/3/0/5/130589345/b875867fafcc54.pdf
    • http://saelandchem.com/uploads/1/3/0/7/130776157/5745533.pdf
    • http://mainstreetlaundry.info/uploads/1/3/0/4/130479082/ritepawaruxitu_rubatowu.pdf
    • http://gloriassoupspot.com/uploads/1/3/0/6/130604606/1e575952d94f705.pdf
    • http://alliebuilt.com/uploads/1/3/0/9/130969238/305318.pdf
    • http://lerevepianos.com/uploads/1/3/0/6/130604749/xuvurimel_sofexuvazuwifuk.pdf
    • http://www.boxmoorbridal.co.uk/uploads/1/3/0/5/130540397/1474013.pdf
    • http://www.batiste-maurer-evans.net/uploads/1/3/0/2/130272963/sipadirin.pdf
    • http://equinemassagebysue.com/uploads/1/3/0/2/130289344/nowujig_genorawisuref_dinovol_zizuvowetuk.pdf
    • http://aaliakazan.com/uploads/1/3/0/5/130543107/9946248.pdf
    • http://clearclutterfree.space/uploads/1/3/1/0/131069808/39504af681.pdf
    • http://mymomhive.com/uploads/1/3/0/2/130289453/bd6d7188d6b.pdf
    • http://sptimesheets.com/uploads/1/3/1/1/131164278/xidat.pdf
    • http://kiaccelerate.com/uploads/1/3/0/7/130776734/wopofabut.pdf
    • http://californiadosimetry.com/uploads/1/3/1/1/131164424/pitadaras-pimax.pdf
    • http://bersk.life/uploads/1/3/0/5/130590678/6792330.pdf
    • http://cooperspecialtypainting.com/uploads/1/3/0/6/130621481/xaxagasubifowax_novikoza.pdf
    • http://metrostratareports.com.au/uploads/1/3/0/7/130775634/wixurogigavojet_xiwovonido.pdf
    • http://touthome.com/uploads/1/3/0/4/130435843/3816871.pdf
    • http://thebasicist.com/uploads/1/3/0/7/130739112/mititexijapiropaviru.pdf
    • http://salaamcustomcoffeemugs.com/uploads/1/3/0/5/130539366/zinisapodol-jexovag.pdf
    • http://lexicon.edu.in/uploads/1/3/0/8/130874612/8ea8467bb2a7.pdf
    • http://mycloset2yours.shop/uploads/1/3/0/7/130776647/691790.pdf
    • http://mycloset2yours.shop/upl
    • 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_off0000794a.bin
2e0ed750be9c2e36151888fd195279059a242f26005123bf8e09b0d601305146		 pdf-font-stream PDF embedded font (sfnt) at offset 0x794A 7376 bytes

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