Malicious PDF — malware analysis report

Static analysis result for SHA-256 55f5b5fd16e6d406…

MALICIOUS

PDF

49.4 KB Created: 2020-03-29 08:25:25 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 8b8df50c7c0d469921c672b25b80ef96 SHA-1: 91efb1437ccd4dbb458acf101b93bc913496e3bf SHA-256: 55f5b5fd16e6d406802dca5c93f70ac2d11fde6dd576aa382a3df93af11e7bc4
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, characteristic of a link farm or SEO spam. The embedded document body text, though partially corrupted, contains a URL that points to a suspicious domain. The heuristic 'PDF_SEO_LINK_FARM' indicates the presence of numerous external PDF links, suggesting a malicious intent to redirect users to potentially harmful content. 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://74-123-77-204.mgwnet.com/uploads/1/3/0/5/130588475/130588475.html#oraciones+con+sustantivos+propios+en+ingles+y+espa%C3%B1ol
    • http://rabunlakestrading.com/uploads/1/3/0/4/130435956/dfda5.pdf
    • http://pineislandvacationrental.com/uploads/1/3/0/8/130874530/4285232.pdf
    • http://mkequipements.ca/uploads/1/3/0/2/130288488/3037fc7f4.pdf
    • http://pooltexrepair.net/uploads/1/3/0/7/130740568/rogates.pdf
    • http://orientacionsocialfemenina.org/uploads/1/3/0/6/130605204/luzujuz.pdf
    • http://mx.fishandswallow.com/uploads/1/3/0/8/130874521/9658946.pdf
    • http://www.visionary-elegance.com/uploads/1/3/0/6/130621596/kezukizax.pdf
    • http://cpanel.oxnardfilmsociety.org/uploads/1/3/0/7/130776726/fabc0386e1f3e.pdf
    • http://3albab.net/uploads/1/3/0/4/130478609/rewewozovuguke-lirujipasiru-takesogeweja.pdf
    • http://peachstate.biz/uploads/1/3/0/4/130435927/zoxazo.pdf
    • http://kiqui.com/uploads/1/3/0/7/130739068/7160872.pdf
    • http://outsmart-consulting.com/uploads/1/3/1/0/131070204/ropone.pdf
    • http://stanfordrhodeswp.com/uploads/1/3/0/6/130621620/8914279.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007267.bin
3c91aec75b1faab7456a0e564a508553d6670e0ad59203960c038558f2b12338		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7267 10160 bytes
font_01_sfnt_off0000969b.bin
e2f1373bf3d70a40ff4276a486f0a1d2d32154e4f45ad1243a44c3d3b7d91cea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x969B 2652 bytes
font_02_sfnt_off0000a004.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA004 16036 bytes

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