Malicious PDF — malware analysis report

Static analysis result for SHA-256 aeae8ca2b930df72…

MALICIOUS

PDF

55.8 KB Created: 2020-05-29 21:20:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 814efa627e28e8d4d93bcb8116910f25 SHA-1: cf83d94cc8a52d41037b512d8681277467d89ac4 SHA-256: aeae8ca2b930df72e4d914753d0f8fc5a0b9e949e9b7bba0f0baad3865801090
62 Risk Score

Malware Insights

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

The PDF file contains numerous external links, a technique often used for SEO poisoning or to redirect users to malicious sites. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, with 'mandymcdowell.com' being a dominant host. The document body mentions 'Black desert pure powder reagent', suggesting a lure to attract users to click on the embedded links. No scripts were extracted, limiting the analysis of direct malicious actions.

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://assessingmedicationeffects.com/uploads/1/3/0/4/130476442/130476442.html#black+desert+pure+powder+reagent
    • http://mandymcdowell.com/uploads/1/3/0/5/130551416/1149282.pdf
    • http://buyhousesforprofit.com/uploads/1/3/1/1/131164007/xawopojejigedew-dosaj.pdf
    • http://homebuilderri.com/uploads/1/3/0/2/130289460/9474262.pdf
    • http://swingcityvolleyball.com/uploads/1/3/0/6/130639899/602103.pdf
    • http://hostmaster.h1learning.com/uploads/1/3/0/6/130620536/toweretijutev.pdf
    • http://webmail.logosmetrolink.com/uploads/1/3/0/7/130776444/6239340.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_off0000ae4a.bin
da09a10de8692d75f0cef783f9c6e3e9f643dc24f5199825265eda3a763f8461		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAE4A 11064 bytes

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