Malicious PDF — malware analysis report

Static analysis result for SHA-256 a53941cb8cc2bce7…

MALICIOUS

PDF

36.1 KB Created: 2020-05-31 03:53:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 79dd4d41cc1e76f21da48fdd68a2a39a SHA-1: f53cdd4839d517993ddcac90f4f84af5d3c4f230 SHA-256: a53941cb8cc2bce70d329f6cc02f2db02ed29ece72a2128a5490faba0f1ee1c2
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF file contains numerous external links, a common tactic for SEO poisoning or redirecting users to malicious sites. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external links, with the dominant host being 'theangeliquediedrick.com'. The document body text, though partially corrupted, includes references to 'Imagen de ventana de word' and the wkhtmltopdf generator, suggesting a lure to disguise the malicious intent. The presence of multiple unknown URLs points towards a distribution or phishing campaign.

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://freshgoodsdirect.com/uploads/1/3/0/4/130490338/130490338.html#imagen+de+ventana+de+word
    • http://theangeliquediedrick.com/uploads/1/3/1/4/131452826/5ff6b3083983.pdf
    • http://jstanthrgrlphotos.com/uploads/1/3/0/7/130740374/88a38d74cab04b.pdf
    • http://gssports.org/uploads/1/3/0/6/130604657/4c2b47.pdf
    • http://thegreatcommissionmelodyboutique.net/uploads/1/3/1/4/131407281/13f230d19b817.pdf
    • http://moorishapothecary.com/uploads/1/3/1/4/131437462/sedimu_nezitizil_buxupu.pdf
    • http://pikespeakplays.com/uploads/1/3/1/1/131163640/guxovizevamixafil.pdf
    • http://moorishapothecary.com/uploads/1/3/1/4/131437462/sedimu_nezitizil_buxupu
    • 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_off00005ff9.bin
6fff3a9f264dac43ea9886cac8e5233b3e0bc26b5f2c97352d46fd4c48d43a13		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FF9 10896 bytes

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