Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4a5daeb0841c4d0…

MALICIOUS

PDF

31.5 KB Created: 2020-04-03 02:24:45 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 8e31acd549ccf49520d5c84057914f5a SHA-1: 21291e566dc5d08559d7d98137b3bedf541e271e SHA-256: c4a5daeb0841c4d059e040cc18a327e49c6aa44bdef5990c6dfeb51bf087b7d5
62 Risk Score

Malware Insights

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

The PDF document was identified as malicious due to a heuristic detecting a large farm of external links. The document body contains numerous URLs pointing to various domains, suggesting a link-farming or redirection scheme. The primary intent appears to be directing users to potentially malicious content hosted on these external sites.

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://4angelstshirts.com/uploads/1/3/0/2/130271019/130271019.html#biologia+2+cch+sur
    • http://lasthit.eu/uploads/1/3/0/2/130272095/27a6d2747d76.pdf
    • http://hikarimartialarts.org/uploads/1/3/0/7/130775835/652c63cb.pdf
    • http://thinkhodges.com/uploads/1/3/0/6/130621749/rupameraja.pdf
    • http://livermorelandscaping.com/uploads/1/3/0/8/130814749/e93a84a8aa2.pdf
    • http://cliffordsgarage.com/uploads/1/3/0/7/130775286/4368403.pdf
    • http://uribetribe.com/uploads/1/3/0/9/130969850/wefabajalorid-nozivuwutuzapor-gunedakigoja.pdf
    • http://parle-mouvement.com/uploads/1/3/0/3/130323106/sosimojodobosegewuf.pdf
    • http://weareuberdrivers.com/uploads/1/3/0/8/130814078/repani.pdf
    • http://lansdalecatholicrobotics.org/uploads/1/3/0/9/130969847/zuwuloxe_jinurabup_jerevenamilad.pdf
    • http://www.physioxrehab.co.uk/uploads/1/3/0/4/130489909/284668ae90.pdf
    • http://decolonizetheclass.com/uploads/1/3/0/7/130738889/20cbc8971.pdf
    • http://rorz.shop/uploads/1/3/0/5/130551054/48b6c.pdf
    • http://theassociationofiraqiacademics.com/uploads/1/3/0/6/130605452/7177659.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_off00005274.bin
dbaa6971b5046c773520579f0e448dd3848f1fe6eabdbd257715ce170cb51af5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5274 8044 bytes

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