Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf7f0bbfcfa7e120…

MALICIOUS

PDF

61.6 KB Created: 2020-06-08 06:27:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 75de47586236e34c9727922009f24fff SHA-1: e0e23134dccaf6b194df51b882541313dda125e8 SHA-256: cf7f0bbfcfa7e120e19de856b6efbe29ac04e669b40fef8bbc190d0deaa78ec0
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, many pointing to similarly structured URLs on different domains, indicative of a link farm. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior. The primary URL found in the document body, http://podollansa.devsite-1.com/uploads/1/3/0/3/130379070/130379070.html#Wuzigo+tv+com, is likely the initial lure. The purpose appears to be SEO manipulation or directing users to potentially malicious content hosted on these numerous domains.

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://podollansa.devsite-1.com/uploads/1/3/0/3/130379070/130379070.html#Wuzigo+tv+com
    • http://doorado.net/uploads/1/3/0/4/130436165/5280279.pdf
    • http://shortroundapparel.com/uploads/1/3/0/3/130313525/luzawi.pdf
    • http://elitecolognes.com/uploads/1/3/0/8/130814085/8a59e2678b.pdf
    • http://corribviewconstruction.com/uploads/1/3/0/8/130814526/wadobakafo.pdf
    • http://beauty616.com/uploads/1/3/0/5/130589399/c7826581c5f12f.pdf
    • http://mail.mindhealthconnection.org/uploads/1/3/0/8/130813961/jilulazugod.pdf
    • http://tolivehealthy4life.com/uploads/1/3/0/7/130738913/damovuwumewani.pdf
    • http://cybertum.net/uploads/1/3/1/3/131381134/4289388.pdf
    • http://kreativekidsconsulting.com/uploads/1/3/0/6/130620970/92910.pdf
    • http://salesnleasing.space/uploads/1/3/0/7/130738837/lafozuvej-sugojagoti-levifoworu.pdf
    • http://aronson.info/uploads/1/3/0/8/130873864/5689037.pdf
    • https://turaweg.files.wordpress.com/2020/06/75501592848.pdf
    • https://kurupava.files.wordpress.com/2020/06/sunodusunirimomogumavax.pdf
    • https://sejejolobol.files.wordpress.com/2020/06/momunonuwiwav.pdf
    • https://xitesino.files.wordpress.com/2020/06/89326751018.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_off0000c005.bin
80091096fa408957db3401e343e2e26ab032a92e0fcbc7d010d8d8e5c2acdc71		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC005 13160 bytes

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