Malicious PDF — malware analysis report

Static analysis result for SHA-256 2431e867fbe19127…

MALICIOUS

PDF

37.9 KB Created: 2020-05-24 01:56:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 813707121a93abb7fe3ae6aeefcdf39d SHA-1: 7f1ac1da9ae0d83edb63131dcbe1373f83812990 SHA-256: 2431e867fbe19127aa9b91b6731191ea3186eec0ca377cf1826972ec1a89d997
62 Risk Score

Malware Insights

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

The PDF document 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 redirection scheme. The embedded document body text, though heavily corrupted, contains fragments of URLs that match the pattern of the external links. The primary purpose appears to be directing users to a network of potentially malicious or ad-serving websites.

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://lanie-logan.rominastiebenphotography.com/uploads/1/3/0/8/130874467/130874467.html#cat%2527+s+eyes+treasure+house
    • http://greenwayfashion.com/uploads/1/3/0/5/130538875/3567476.pdf
    • http://pdxprotree.com/uploads/1/3/1/8/131856135/popaw.pdf
    • http://brothersphotographers.com/uploads/1/3/0/5/130539155/f8f960f.pdf
    • http://wild-n-whimsy.shop/uploads/1/3/1/4/131408131/3538730.pdf
    • http://pennyflickart.com/uploads/1/3/1/4/131411596/kosinaxejakalovajuj.pdf
    • http://carlosewaumanjr.net/uploads/1/3/0/3/130324385/fuxebevonowimol-xokafiso-newidokive-sezew.pdf
    • http://restaurantelenador.es/uploads/1/3/0/6/130603814/307668.pdf
    • http://ittakes1tohelp1.com/uploads/1/3/1/3/131383813/5209551.pdf
    • http://augustaraptors.org/uploads/1/3/1/4/131437025/2367336.pdf
    • http://kyrstinkempf.com/uploads/1/3/1/3/131384544/ruzowetowi.pdf
    • http://mathewsengineering.com/uploads/1/3/1/4/131406798/vavivekuluru.pdf
    • http://ajmobilewashdetailllc.com/uploads/1/3/0/9/130969184/13d5f.pdf
    • http://etck12mi.us/uploads/1/3/1/0/131071176/kogukirawinebudana.pdf
    • http://manpile.net/uploads/1/3/0/8/130813887/fupedib-ravilupamoki.pdf
    • http://viningssquare.com/uploads/1/3/1/4/131453259/nalajamuxizeni-ralusuzo.pdf
    • http://texasdotexams.com/uploads/1/3/0/6/130640105/jifazuzefisitet_suwerorusaxino.pdf
    • http://musicbandtogether.com/uploads/1/3/1/3/131380531/nobapapogerexelej.pdf
    • http://beyondberkeley.com/uploads/1/3/0/9/130969185/7403345.pdf
    • http://hodson-cacho.com/uploads/1/3/0/5/130540700/mepevajuvika-xisazodufufoke-direnokukuwoku.pdf
    • http://sandiegoconventiondiningguide.com/uploads/1/3/1/3/131378990/afa7789aa2c.pdf
    • http://floresconamorbolivia.com/uploads/1/3/0/5/130550976/3627388.pdf
    • http://lineakornumrask.com/uploads/1/3/0/8/130874130/c6160df7f.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_off00006550.bin
a911294d2d6650e6762b2d1e03cfa7749692b565896ac9f1a7f7a25a1ef91caa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6550 11448 bytes

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