Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c9c2bca46258d2b…

MALICIOUS

PDF

52.6 KB Created: 2020-03-27 02:54:28 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 4d953ac38793853652a8609c5797fc98 SHA-1: 13a1ceb64df8096faab398f03128afefc452590c SHA-256: 2c9c2bca46258d2b94df0f30e87c06786e75dd525d5caec1ff541d927c101b24
62 Risk Score

Malware Insights

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

The PDF file contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or distribution mechanism. The document body itself contains text related to linguistic signs and the authoring application, but the primary malicious activity appears to be the mass of embedded URLs.

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://2020blue.org/uploads/1/3/0/6/130604892/130604892.html#el+signo+linguistico+es+convencional
    • http://azaharaong.com/uploads/1/3/0/5/130551429/9cb5c292954c9d.pdf
    • http://ldroman.com/uploads/1/3/0/4/130476594/d6042fe4f0567dd.pdf
    • http://hostmaster.thehitmill.com/uploads/1/3/0/2/130274330/3961935e1aa8bd4.pdf
    • http://womblemonster.com/uploads/1/3/0/6/130622042/3269512.pdf
    • http://m.lawhorncarinsurance.com/uploads/1/3/0/7/130739224/400906f05.pdf
    • http://mail.rpjandco.com/uploads/1/3/0/4/130488615/rusunu.pdf
    • http://brismakingchanges.com/uploads/1/3/0/6/130605133/sajovadi.pdf
    • http://mail.c3power.org/uploads/1/3/0/6/130604580/8b76734.pdf
    • http://privacypolicypetition.org/uploads/1/3/0/4/130483194/gigem_puxifugikode.pdf
    • http://missstewartsailors.com/uploads/1/3/0/5/130590511/mupojiwaji_kuwofatetuwaw_nogezawikevu.pdf
    • http://mollybrave.net/uploads/1/3/0/2/130288506/47065fc5dad5.pdf
    • http://mmareport.net/uploads/1/3/0/4/130436252/4983412.pdf
    • http://mta-sts.fw1a.davidandnordely.com/uploads/1/3/0/6/130639107/3578317.pdf
    • http://bombcakesnw.com/uploads/1/3/0/6/130620172/dokisajoseneses.pdf
    • http://roosfotografie.com/uploads/1/3/0/4/130488924/6173576.pdf
    • http://speechninja.net/uploads/1/3/0/6/130639145/1967025.pdf
    • http://christensensmobiledetail.com/uploads/1/3/0/9/130969438/baluxugafak.pdf
    • http://www.peristorm.com/uploads/1/3/1/1/131164460/098b537633e.pdf
    • http://tecfrico.com/uploads/1/3/0/8/130814308/5019890.pdf
    • http://www.alessandrocavallin.com/uploads/1/3/0/8/130873975/d2321b41f7de35d.pdf
    • http://valuebg.com/uploads/1/3/0/9/130969987/pisafijanexog.pdf
    • http://clubboesche.com/uploads/1/3/0/4/130483539/tulezezijonepud_simozava_temuk.pdf
    • http://www.therollingstovesllc.com/uploads/1/3/0/6/130620803/7957970.pdf
    • http://hondumexframingllc.com/uploads/1/3/0/6/130639845/9169630.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_off000082bd.bin
2fd359c2dd4021f10018aaa62748fcce071552fe58767ada01e6c6f60542b258
pdf-font-stream PDF embedded font (sfnt) at offset 0x82BD 9232 bytes
font_01_sfnt_off0000a421.bin
e91619dfd4c72a85464d95ef1ba4e67df13020651c42071bafbe521a61d9f7fc
pdf-font-stream PDF embedded font (sfnt) at offset 0xA421 2652 bytes
font_02_sfnt_off0000ad88.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63
pdf-font-stream PDF embedded font (sfnt) at offset 0xAD88 16036 bytes