Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bc5aed0d9d8b36a…

MALICIOUS

PDF

41.6 KB Created: 2020-04-18 13:57:23 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 6e5e73bdb39ee44fbd224b552e91d1d2 SHA-1: 4cd24549406525e80cbb9180e73b2be561c85bf4 SHA-256: 9bc5aed0d9d8b36a2ef4efc563283b76be67539f91fb1a1fd8c6593ed36c6946
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of external links, many of which point to PDF files hosted on various domains. The document body mentions 'game booster android terbaik jalantikus', suggesting a lure to a potentially malicious webpage. The PDF_SEO_LINK_FARM heuristic indicates a deliberate attempt to create a link farm, likely for SEO manipulation or to distribute malware. The primary IOC is the first external URI found, which also contains the lure text.

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://polarisbdgsystems.com/uploads/1/3/0/5/130543261/130543261.html#game+booster+android+terbaik+jalantikus
    • http://bci-lab.com/uploads/1/3/0/8/130874347/punisor.pdf
    • http://oneabovecataract.net/uploads/1/3/1/3/131398091/1225273.pdf
    • http://paradisegardensofbr.com/uploads/1/3/0/6/130620613/voliduzu.pdf
    • http://remixseo.com/uploads/1/3/1/6/131606002/d7455a6ceb735c.pdf
    • http://feelthenoize.com/uploads/1/3/1/3/131380388/5929522.pdf
    • http://runners-daily.com/uploads/1/3/1/3/131380438/domikulodege-totulexuxemura.pdf
    • http://goodsamaritanoils.com/uploads/1/3/1/6/131637357/kozipenesakujo_kasapaj_zedenelabuw_xatupufazowivu.pdf
    • http://bossasrx.com/uploads/1/3/0/4/130488198/zalilebutasa.pdf
    • http://carriewinfield.com/uploads/1/3/1/3/131383750/gadezubal-bonazovi-sexewevoxubepel-vimuraviliv.pdf
    • http://leeslawnmowerandsmallenginerepair.com/uploads/1/3/1/1/131163705/2477468.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_off00007b98.bin
e9cdb3ae85476cb877ffd4501551f0c82f2dd9e7fcdb4a0da2e4750eb568fff4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B98 7988 bytes

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