Malicious PDF — malware analysis report

Static analysis result for SHA-256 57ae5f1194f1c660…

MALICIOUS

PDF

36.4 KB Created: 2020-04-11 09:58:12 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 430001a9018f19baad8fea2e3b5b1855 SHA-1: d720384ad4ef1e371e6db93d906ad23c391bf960 SHA-256: 57ae5f1194f1c660ee6b1116a220d093d997f72c9a143fb79d722660f31e9bd7
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which point to other PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for malicious content. The primary heuristic identified a mass external PDF link farm, suggesting the document's purpose is to redirect users to potentially harmful sites. The document body itself is heavily obfuscated and contains placeholder text related to 'Sto fleet science consoles', which does not provide clear user-facing content but may serve as a lure.

Heuristics 3

  • 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
  • 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://melbournehotelplaceholder.devsite-1.com/uploads/1/3/0/6/130621267/130621267.html#sto+fleet+science+consoles
    • http://sandrpropertymanagement.com/uploads/1/3/0/6/130621374/e8c27f1.pdf
    • http://blindsquirrelcreativedesign.com/uploads/1/3/1/0/131071157/demax_bogiso_kawebe.pdf
    • http://tntproducts.org/uploads/1/3/1/3/131398515/xaminowo.pdf
    • http://mayefairartsfestival.com/uploads/1/3/0/5/130539095/7431501.pdf
    • http://apositivelight.org/uploads/1/3/0/6/130603803/2828380.pdf
    • http://bilingualfoodhandlerscardaz.com/uploads/1/3/1/0/131070530/3184266.pdf
    • http://premierhvacservices.com/uploads/1/3/0/7/130740512/redijixuw-rinogiwuzuk-begakisaxe.pdf
    • http://utzschneiderrunning.com/uploads/1/3/1/4/131453559/7426565.pdf
    • http://belfastdrivered.com/uploads/1/3/0/3/130312974/962ef.pdf
    • http://beomnifit.com/uploads/1/3/0/3/130313235/e8116b60c850.pdf
    • http://billiard-glasses.com/uploads/1/3/0/2/130289573/jimipa-bovuramut-pesojawob-zurowel.pdf
    • http://oztotes.com/uploads/1/3/1/4/131437443/gosufo.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_off00006718.bin
8bfb85304526d300d955e5a617c6710a972f4c3b4ef06a5afbd42d9c410ebba5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6718 7948 bytes

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