Malicious PDF — malware analysis report

Static analysis result for SHA-256 f98ac158a9b8a3a9…

MALICIOUS

PDF

39.8 KB Created: 2020-03-28 13:28:40 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 6847755d252af100187f39074e172608 SHA-1: 705be80d24391d6b65dca39f358ead169bd1ed24 SHA-256: f98ac158a9b8a3a9cee6c844d373bd10e2a50bc4afd8ec97ff88ada9fc5110e7
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

The PDF file contains a large number of external links pointing to other PDF files hosted on various domains. This pattern is indicative of a link farm or a content distribution network designed to obscure the ultimate malicious payload. The document body text, though partially corrupted, includes a title related to an African political map and mentions wkhtmltopdf, suggesting it was generated programmatically. The primary attack pattern observed is the mass distribution of links, likely to host malicious content or generate traffic.

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://burracing.com/uploads/1/3/0/8/130814706/130814706.html#mapa+politico+de+africa+actual+2018
    • http://yournextheadquarters.com/uploads/1/3/0/6/130604748/zukerizomiwi.pdf
    • http://74-123-78-243.mgwnet.com/uploads/1/3/0/5/130588318/4191183.pdf
    • http://sophiecharlottephotography.com/uploads/1/3/0/2/130287976/berumez_labedonalize_zotawuleketuf_wutajedurig.pdf
    • http://shanebrelesky.com/uploads/1/3/0/3/130313289/rafowulizexo.pdf
    • http://www.maplerockbuidingco.com/uploads/1/3/0/5/130539114/vorixovovawoxifed.pdf
    • http://handreconsurgerynw.com/uploads/1/3/1/1/131164556/vebaroselonejozira.pdf
    • http://www.harbortownbuckeyelake.com/uploads/1/3/0/3/130379409/308661.pdf
    • http://southerncharms60.com/uploads/1/3/0/4/130435650/673453.pdf
    • http://orclass-corporate.com/uploads/1/3/0/6/130605432/56e753a.pdf
    • http://andrewladouceur.com/uploads/1/3/0/6/130639042/noned-rixipewam-zovenefolak.pdf
    • http://www.rielaxxed.com/uploads/1/3/0/2/130272414/pupofafubuni.pdf
    • http://www.purecure.shop/uploads/1/3/0/8/130814055/8d5b645773505.pdf
    • http://medranoasociados.net/uploads/1/3/0/6/130639661/wijodeb-zopipaver.pdf
    • http://magicalintents.com/uploads/1/3/0/5/130538841/supurab.pdf
    • http://giltnerlogisticservices.com/uploads/1/3/0/8/130874365/wulesugivegigabop.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_off00006de1.bin
c92f4365659acd990a9c05651e0fe7d2999956a448c056e2ca3975ddc0469eb6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DE1 9768 bytes

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