Malicious PDF — malware analysis report

Static analysis result for SHA-256 93512e1ad848809a…

MALICIOUS

PDF

31.5 KB Created: 2020-04-29 17:00:46 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 4a20d0cc0844f5496e18b1ae21d43d1e SHA-1: da50584ea3f4ba903bd34b5f5d829f66d280b0e7 SHA-256: 93512e1ad848809a56fa96bf3a2b0797a4f913b96ec312c5fe16fd64562a6abd
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to other PDF files on different domains. This behavior is indicative of a link farm or a mechanism to distribute content across multiple sites. The primary URL found in the document body, http://fitforakingbedding.com/uploads/1/3/1/4/131453598/131453598.html#epdm+rubber+sheet+uk, suggests a lure related to industrial materials. No scripts were extracted, limiting the analysis of direct payload delivery.

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://fitforakingbedding.com/uploads/1/3/1/4/131453598/131453598.html#epdm+rubber+sheet+uk
    • http://tabbiescleaning.org/uploads/1/3/0/5/130588842/damikorosirizaze.pdf
    • http://gateway-of-light.org/uploads/1/3/0/6/130604098/zekugotisosox.pdf
    • http://helennesbitt.com/uploads/1/3/1/3/131384544/692684.pdf
    • http://nordiceugenics.com/uploads/1/3/0/7/130775018/pavuwuboxi_rujesutefefuri_duxukoluji.pdf
    • http://nhweddingdresses.com/uploads/1/3/0/7/130775144/095d9c.pdf
    • http://thinkinspirecreatehappiness.com/uploads/1/3/0/3/130379408/wepisabobo.pdf
    • http://brittcookearchitect.com/uploads/1/3/1/4/131437667/rezudavibukupa_jogowana_faxulezewafob.pdf
    • http://wastedtalentdesign.com/uploads/1/3/0/5/130588624/xosavumiza.pdf
    • http://landseerproperties.net/uploads/1/3/0/6/130620168/rodazenu_nidabe_rojufewuw.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_off00005408.bin
0f1569742d7efcc6929afad804e7ddb019d840f1b091ba02c5cec19704028027		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5408 7752 bytes

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