Malicious PDF — malware analysis report

Static analysis result for SHA-256 c36d3787e4db649c…

MALICIOUS

PDF

33.6 KB Created: 2020-04-03 06:01:58 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5b256a85f07a0c64000947f2075921b8 SHA-1: edda305e7b83afa15c1b8ee06686132ce417fdb1 SHA-256: c36d3787e4db649c28f39f7cdddf527bd91359c3e74cce44a26db0ea4863ce49
62 Risk Score

Malware Insights

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

The PDF contains a large number of external links, a technique often used for SEO spam or to redirect users to malicious sites. The heuristic 'PDF_SEO_LINK_FARM' specifically indicates this behavior, pointing to numerous URLs hosted on various domains. The primary URL extracted, http://sanantonioedge.com/uploads/1/3/1/4/131438155/131438155.html#forces+and+motion+using+phet%27s+force+and+motion+basics+html5+part+2+answers, is part of this link farm.

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://sanantonioedge.com/uploads/1/3/1/4/131438155/131438155.html#forces+and+motion+using+phet%27s+force+and+motion+basics+html5+part+2+answers
    • http://atpeacecounseling.com/uploads/1/3/0/2/130287367/jonebodad-delamepuxit.pdf
    • http://aiyer.live/uploads/1/3/0/6/130604598/c6505.pdf
    • http://snapfreshsolutions.com/uploads/1/3/1/0/131071278/2335558.pdf
    • http://dermartclinic.com/uploads/1/3/0/8/130874010/7565751.pdf
    • http://ministryiq.net/uploads/1/3/0/2/130291033/81b95746.pdf
    • http://globalsoundstation.com/uploads/1/3/1/4/131453302/f95b40.pdf
    • http://rebuschigmbh.ch/uploads/1/3/0/7/130775827/c309348.pdf
    • http://goroyalelite.com/uploads/1/3/0/3/130313158/2489010.pdf
    • http://cthomasart.com/uploads/1/3/0/6/130639782/bibejod.pdf
    • http://bibleinthepub.com/uploads/1/3/0/7/130739793/f0f6b91ef9.pdf
    • http://fronttal.com/uploads/1/3/0/7/130775501/2e0ef.pdf
    • http://bagwomenmen.com/uploads/1/3/0/3/130313440/nidonogapegadoxesap.pdf
    • http://changetheface.com/uploads/1/3/0/4/130489437/pizaxa_refove.pdf
    • http://exileartcollective.ink/uploads/1/3/0/7/130738912/ff07bfb591786.pdf
    • http://frenchwordsmith.com/uploads/1/3/0/4/130483325/tojuzuvasefu.pdf
    • http://mettoweemakers.com/uploads/1/3/0/7/130776716/pafisetuv_feveremodesodaw_jemazawari_jakigarenas.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_off00005b39.bin
ba144625bf21e574318d4d9f52f9a7e57eea921137601125c2415a804ff93d8b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B39 7424 bytes

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