Malicious PDF — malware analysis report

Static analysis result for SHA-256 a170e91a56605124…

MALICIOUS

PDF

28.8 KB Created: 2020-05-23 01:21:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c9069fcbdbdd3a13ee9c9ec6ae2ebe0 SHA-1: 97b7ee8443025e58dd86b18b6b6cf85d83a2f86e SHA-256: a170e91a56605124cc93e1a5aefa360af5f97280d214fb43c253e20a356a865c
62 Risk Score

Malware Insights

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

The PDF file 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 SEO abuse tactic. The document body contains a mix of seemingly unrelated text and URLs, further supporting the idea that the primary purpose is to redirect users to external sites. 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://carpetcleancary.com/uploads/1/3/1/3/131383514/131383514.html#kenmore+humidifier+758+manual
    • http://greaterplanet.org/uploads/1/3/1/6/131637333/3643955.pdf
    • http://mkmconcessions.com/uploads/1/3/0/7/130775443/jidaduli.pdf
    • http://bluecloudvape.com/uploads/1/3/1/0/131070894/8073471.pdf
    • http://stnsecurity.com/uploads/1/3/1/1/131163563/fesiv-vadejezetekag-xotiwutixe.pdf
    • http://aaceconsulting.org/uploads/1/3/0/7/130776519/66784.pdf
    • http://need-organization.org/uploads/1/3/0/8/130814065/zadejema.pdf
    • http://przewozyautokarowe-torun.pl/uploads/1/3/1/4/131438091/0547da20fa87a.pdf
    • http://dejaguar.com/uploads/1/3/0/6/130621141/c14d0cfac9435.pdf
    • http://lawofcyberwarfare.com/uploads/1/3/0/2/130288379/4492804.pdf
    • http://seeingtheworldinadifferentlite.com/uploads/1/3/0/5/130551794/84344.pdf
    • http://111sog.com/uploads/1/3/0/5/130551526/8657191.pdf
    • http://worldadvancedsolutions.com/uploads/1/3/0/7/130775047/vawejarux_fukidij_nepogodenupowa_zalaraderugim.pdf
    • http://gimeproductions.com/uploads/1/3/0/6/130604787/ritowit_lefiguniw_rivuxusiwerugu.pdf
    • http://beforeverhome.com/uploads/1/3/0/4/130488565/0301ce2adf2cbe8.pdf
    • http://valleygardendesigns.com/uploads/1/3/0/8/130874583/tofipupogufiw_fixofesituboba_rukuva.pdf
    • http://app-pof.com/uploads/1/3/0/5/130588157/vanadud.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_off000049c3.bin
fb2cb88946a26ec94f0686fdd3275fe3d91873b85c7a5bca050e4fbf33203fee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x49C3 8780 bytes

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