Malicious PDF — malware analysis report

Static analysis result for SHA-256 f84a3323a1d5c7f0…

MALICIOUS

PDF

43.8 KB Created: 2020-03-07 14:38:36 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 88bef91a955c94abe3c5ca2d3624f857 SHA-1: bf4badbfc0274b82815b3c98296ce0c3b3dabfb3 SHA-256: f84a3323a1d5c7f0cf1096369f2e717a7dd77e3a1d8fee52311fe33f9db73e1d
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links to various domains, indicating a link farm or SEO poisoning attempt. The document body, though partially corrupted, contains references to 'abaqus cae documentation 6.13' and 'wkhtmltopdf', suggesting a lure for technical documentation. The primary attack pattern involves directing users to a multitude of PDF files hosted across different subdomains, likely to distribute malware or engage in phishing.

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://kids.ladse.org/uploads/1/3/0/4/130483275/130483275.html#abaqus+cae+documentation+6.13
    • http://quillicus.com/uploads/1/3/0/6/130620887/c2b30bbb7.pdf
    • http://jmbproducts.com/uploads/1/3/0/5/130542991/mapuxozo.pdf
    • http://teaching-philosophy-be-amazing.com/uploads/1/3/0/6/130604699/a75dcbb4da47ef8.pdf
    • http://muziksingapore.com/uploads/1/3/0/7/130776673/nuwelulowu.pdf
    • http://okpins.net/uploads/1/3/0/2/130288431/5949659.pdf
    • http://doicontrol.com/uploads/1/3/0/6/130620767/gazugeviza-jajulibigege-fuzuvuja-lokobezekutimu.pdf
    • http://babylon5cards.com/uploads/1/3/0/5/130551708/batajulotobo.pdf
    • http://mail.erppartner.ch/uploads/1/3/0/2/130289774/bugekugoxexe.pdf
    • http://allaboutgreenvillesc.com/uploads/1/3/0/2/130291658/diwavamijulipo.pdf
    • http://weenies.online/uploads/1/3/0/2/130288962/6597958.pdf
    • http://xxx666xxx.site/uploads/1/3/0/4/130436089/gegesiloveze-latanoj-pubuzowiguwe-nebaf.pdf
    • http://xodessertsandbakery.com/uploads/1/3/0/8/130873856/kepabugalegi-sukutulexerot-tujidabovevexud.pdf
    • http://www.sophia-quest.com/uploads/1/3/0/8/130814643/4529c.pdf
    • http://norcal-cre.com/uploads/1/3/0/7/130740590/7118089.pdf
    • http://manjindersinghmanesh.org/uploads/1/3/0/5/130542692/94b7ebfb9396c0.pdf
    • http://jackiefrankeditor.com/uploads/1/3/0/5/130589014/wofizitisiji.pdf
    • http://hostmaster.unesco-mab.org.uk/uploads/1/3/0/6/130639573/kijilomafalisunik.pdf
    • http://newyorklifeinsuranceattorney.com/uploads/1/3/0/5/130589433/0ce8967a0d60.pdf
    • http://rosemarysaromatiking.com/uploads/1/3/0/5/130590672/jefivoseba.pdf
    • http://cascading-quilts.com/uploads/1/3/0/3/130324278/7e82be8d178f2.pdf
    • http://millionairsgaming.com/uploads/1/3/0/2/130272551/2b6df39074.pdf
    • http://elodiepaints.com/uploads/1/3/0/2/130273626/bizozipukufumipexef.pdf
    • http://gravanza.com/uploads/1/3/0/2/130287299/rikikiwirupa.pdf
    • http://wearelegionofficial.com/uploads/1/3/0/6/130603913/c04b10.pdf
    • http://wearelegiono
    • 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e9e.bin
a0a7ea2117266d58772dd7b2d14fd75182bf89d6ed0f0acbecbff85b62254a60
pdf-font-stream PDF embedded font (sfnt) at offset 0x6E9E 8508 bytes
font_01_sfnt_off00008e1c.bin
afd8868629b61d85ec32a8a0de1ca84da82d48156cdd7447d7c4f51403cf5149
pdf-font-stream PDF embedded font (sfnt) at offset 0x8E1C 5244 bytes