Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4374fd4a92e0ffe…

MALICIOUS

PDF

32.4 KB Created: 2020-06-01 14:27:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6e765d704dca98ef103e42997110e99a SHA-1: 6f663b94eb08a10bfa5d2610627674e611399e06 SHA-256: f4374fd4a92e0ffeb5d7faafc9f29b1b71d6f6d390c3c812d90e5973ee6cb540
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, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or SEO spam operation. The primary purpose appears to be directing users to external content, potentially to host malicious payloads or phishing pages. 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://74-123-73-116.mgwnet.com/uploads/1/3/1/3/131383826/131383826.html#introduction+to+electroacoustics+and
    • http://enterprisegaming.news/uploads/1/3/0/4/130436017/8b33d9449a07e90.pdf
    • http://descargarofficegratis.com/uploads/1/3/0/3/130312937/vutisojiwadapav.pdf
    • http://cindymcilhargey.com/uploads/1/3/0/3/130324440/6247892.pdf
    • http://soloinsurancequotes.com/uploads/1/3/0/6/130621352/tamopedepin-vixofeweteris-viligugo.pdf
    • http://mrsgillsfirstgrade.com/uploads/1/3/1/6/131637209/5033095.pdf
    • http://missstewartsailors.com/uploads/1/3/1/4/131454656/masegenom_vabikiwuzuzided_livife.pdf
    • http://_dmarc.grinandgrowchildcare.org/uploads/1/3/0/7/130739532/8362662.pdf
    • http://74-123-73-116.mgwnet.com/uploads/1/3/1/3/131383826/dmca.html
    • http://74-123-73-116.mgwnet.com/uploads/1/3/1/3/131383826/policy.html
    • https://pofavitefig.files.wordpress.com/2020/05/43335429767.pdf
    • https://wiwoxul.files.wordpress.com/2020/05/mukofud.pdf
    • https://puwubovefije.files.wordpress.com/2020/05/risolabegip.pdf
    • https://sabuninovaju.files.wordpress.com/2020/05/34047888696.pdf
    • https://wordpress.com/tos/
    • 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_off000054f9.bin
b0ee2a314b35c9bb56f06552f3c7d552769536552b97cbb5f25a55cae5ae5b4c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54F9 9812 bytes

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