Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4d91c8c63ad3cad…

MALICIOUS

PDF

31.9 KB Created: 2020-05-24 03:49:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d20abfb19cf70f0d01e276ca40c7cd2 SHA-1: 39c92d17df55bf59ac04606d4ee6137b40bfd75f SHA-256: d4d91c8c63ad3cad5a48283fd5b5c1f3e1a3818bb984b41395e6ee2eea9b5f80
70 Risk Score

Malware Insights

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

The PDF file contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or SEO poisoning tactic. One of the embedded URLs, http://7383qipaiyouxi.br3h.com/uploads/1/3/1/3/131384618/131384618.html#diy+water+bottle+labels+template+free, is presented in the document body along with a call-to-action phrase, indicating a lure to click on these links. The presence of numerous unknown reputation URLs further supports the malicious intent.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://7383qipaiyouxi.br3h.com/uploads/1/3/1/3/131384618/131384618.html#diy+water+bottle+labels+template+free
    • http://aandpcapital.com/uploads/1/3/0/5/130539553/gekixetuxedo.pdf
    • http://ip1.pbrc.net/uploads/1/3/0/9/130968967/fasijunekawosok.pdf
    • http://consultoriodelsaber.com/uploads/1/3/0/3/130313265/91447da1db5eeb7.pdf
    • http://s-97.com/uploads/1/3/0/4/130489649/3700946.pdf
    • http://careadvocate.org/uploads/1/3/0/3/130324037/718706.pdf
    • http://hounds-and-hooves.com/uploads/1/3/1/4/131437475/5741181.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_off00005269.bin
1727f9d4ff5198b4fd8c9b276496b00706eb6cb7f3d6d388c8795c49ea519264		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5269 9996 bytes

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