Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c56cd82b4eb646b…

MALICIOUS

PDF

33.8 KB Created: 2020-04-25 10:19:27 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 6308d8304c3e19e88fe54bfa08367db5 SHA-1: d12cdf34d0fa35b31f0187899019e8472edf782b SHA-256: 1c56cd82b4eb646b1e8a21cb970ed0618e2f88cacff203f0ae82ddbc7b67ffda
62 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The document body text, though partially corrupted, suggests a lure related to 'hssc clerk' applications. The primary attack pattern involves directing users to external websites, likely for phishing or malware distribution, using a link farm strategy. No scripts were extracted from this sample.

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://skygrovewellness.com/uploads/1/3/1/4/131406343/131406343.html#annexure+e1+for+hssc+clerk
    • http://childconcierge.com/uploads/1/3/0/6/130639861/256544.pdf
    • http://wordgander.com/uploads/1/3/1/3/131379227/rapologozadi-wevuvarog.pdf
    • http://rubiksproperty.com/uploads/1/3/0/8/130874257/7914314.pdf
    • http://buda.ee/uploads/1/3/0/8/130813764/lonedovipep-walikabof.pdf
    • http://mrlapta.com/uploads/1/3/1/4/131437774/xafijo.pdf
    • http://kaaley.com/uploads/1/3/0/5/130543383/vizewudajom.pdf
    • http://jeffreyirvinantiques.com/uploads/1/3/0/7/130775633/mojamarono.pdf
    • http://8kkmkaraoke.com/uploads/1/3/1/4/131406569/0f315e62.pdf
    • http://waqasanayatullah.com/uploads/1/3/0/6/130620919/fevagevajarufijinim.pdf
    • http://almistsales.com/uploads/1/3/0/7/130776421/808330edcc352e.pdf
    • http://thegenerousgig-makingmusicforacause.com/uploads/1/3/0/6/130621521/jivitep.pdf
    • http://thevelvetteddy.com/uploads/1/3/0/7/130740186/keligexi.pdf
    • http://rondella.es/uploads/1/3/0/9/130969772/dobuk_buvifizanezuxel_kidutageg.pdf
    • http://votejeremygarza.com/uploads/1/3/0/4/130476318/xaxivapijoxo-duvidomidafoku-bumokalaselisu.pdf
    • http://lactamamas.com/uploads/1/3/0/7/130775987/nokinagakujof-gikuwi.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_off00005a3d.bin
df2a904f243b2cf5bd06e9d574846bd485e94e203b9838af2017636479860e2e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A3D 8132 bytes

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