Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d6cb2754ee0eb2c…

MALICIOUS

PDF

37.2 KB Created: 2020-06-04 02:22:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 63e4518e0c1117f442c88c82af78c49e SHA-1: b356d799132595b1b5f6ac885291f12d9d0118dc SHA-256: 9d6cb2754ee0eb2c87574df7173e0120c2a4b903c4a8f0083f4b6277fd1dee3e
62 Risk Score

Malware Insights

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

The PDF file contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, many of which appear to be part of a link farm designed to manipulate search engine results or redirect users to potentially malicious content. The document body itself contains garbled text and references to 'Teorias de la microeconomia', suggesting a lure to disguise the true nature of the document. No scripts were extracted, limiting the analysis of direct payload execution.

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://thegpoc.org/uploads/1/3/1/4/131454482/131454482.html#teorias+de+la+microeconomia
    • http://bctee.com/uploads/1/3/0/3/130313193/mefatano.pdf
    • http://skylandsconsulting.com/uploads/1/3/0/5/130588443/f75b2413cc468.pdf
    • http://metrostratareports.com.au/uploads/1/3/1/4/131405951/1cc7edde48.pdf
    • http://webdisk.blackdogtimber.co.uk/uploads/1/3/1/4/131453712/zipem.pdf
    • http://loskjarkas.com/uploads/1/3/0/4/130476650/2548a891716.pdf
    • http://otodea.com/uploads/1/3/0/3/130379894/vumajireredizun-latotikitido.pdf
    • http://hostmaster.stocksourceltd.com/uploads/1/3/0/2/130289320/gubalulubiwabafadifa.pdf
    • http://sarahdriggersmk.com/uploads/1/3/0/5/130542965/9133461.pdf
    • http://webdisk.bigdipperbeeco.com/uploads/1/3/0/4/130476192/2912736.pdf
    • http://metroeastpastors.org/uploads/1/3/0/4/130488412/muwuwul_nevukoxubebox_modev_mubaxurisuxon.pdf
    • http://2zi.undesirable.us/uploads/1/3/0/5/130542985/rexamamapawis-mijinigulup-nafolajuralaz-kaparopomu.pdf
    • http://thegpoc.org/uploads/1/3/1/4/131454482/terms.html
    • http://thegpoc.org/uploads/1/3/1/4/131454482/dmca.html
    • http://thegpoc.org/uploads/1/3/1/4/131454482/policy.html
    • https://danadarebu.files.wordpress.com/2020/06/58032108442.pdf
    • https://vazomirawan.files.wordpress.com/2020/06/3887127922.pdf
    • https://torasepab.files.wordpress.com/2020/06/zilerinagaziwigibuja.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_off0000630c.bin
fcda351b5526ad38d0b7c6f50f0524b677b688d71f7a89d50bd4803f6f9b3e31		 pdf-font-stream PDF embedded font (sfnt) at offset 0x630C 11208 bytes

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