Malicious PDF — malware analysis report

Static analysis result for SHA-256 94d0ded9076995dd…

MALICIOUS

PDF

36.6 KB Created: 2020-04-04 14:54:44 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 4cbe48887d2dfbd0c1f9f5447a7e4139 SHA-1: 33748a5c8058b08a286361394f15a3e1d5b58427 SHA-256: 94d0ded9076995dd15898d9eb4a24a984bae6a5dd269c3bca0d51c8ba44602d4
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, a technique often used for SEO poisoning or to distribute malicious content. The document body is heavily obfuscated, but the presence of numerous URLs pointing to PDF files on unrelated domains suggests a link farm or redirection scheme. 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://akizusushi.com/uploads/1/3/0/6/130604154/130604154.html#rectal+abscess+icd+10
    • http://nancyspolishing.com/uploads/1/3/0/6/130621719/73005b27e8b353.pdf
    • http://outsideinmassage.com/uploads/1/3/0/6/130621625/jasolunurotoma.pdf
    • http://tactechsolution.com/uploads/1/3/1/4/131406758/8530348.pdf
    • http://angelpeopleplacements.com/uploads/1/3/0/9/130969151/6727822.pdf
    • http://jaicorp.net/uploads/1/3/0/6/130604079/2bc1ce526a37e3.pdf
    • http://parsautorepair.com/uploads/1/3/0/4/130476270/nubimupefekuter_razugeropulus_fomafuwerut.pdf
    • http://luckyeyesband.com/uploads/1/3/0/5/130588548/8710391.pdf
    • http://rusticbcandles.com/uploads/1/3/0/6/130620979/jipavazufat.pdf
    • http://reaganalumni.network/uploads/1/3/0/6/130620665/zukuvoterabosat.pdf
    • http://pneumaticpartscompany.com/uploads/1/3/0/7/130740195/af98654f18.pdf
    • http://propiedadesespeciales.com/uploads/1/3/1/4/131437833/9823087.pdf
    • http://amusee.fr/uploads/1/3/0/7/130775456/kilanaxuwe-fenarenese.pdf
    • http://kineticenergyservices.net/uploads/1/3/0/7/130739627/3468a.pdf
    • http://stevenhallidaygranitespecialist.com/uploads/1/3/0/6/130605203/8089300.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_off00006816.bin
e7207ae65cfb1ed35e71836714a21cd58bf49a68ed8f778a6fe05743e33287c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6816 7528 bytes

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