Malicious PDF — malware analysis report

Static analysis result for SHA-256 c262cb56ebc6b253…

MALICIOUS

PDF

39.9 KB Created: 2020-03-21 17:00:01 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: b0d12dea4562d99b79b3f38c5a0bc984 SHA-1: 3742fbdbf6a65aa67541d86fe11347d231142791 SHA-256: c262cb56ebc6b25361e5de6a9d8dcc43f08bc95e5e17158d663d7d9ccd81aed2
92 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which are dynamically generated and point to unrelated content, indicating a link farm or SEO spam tactic. The document body mentions 'Abc fire extinguisher msds 2015', which appears to be a lure to disguise the malicious intent. The ML classifier strongly flagged this PDF as malicious. The primary attack pattern involves directing users to a multitude of external URLs, likely for SEO manipulation or to host further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://klokkeraadgivning.com/uploads/1/3/0/4/130483210/130483210.html#abc+fire+extinguisher+msds+2015
    • http://www.karenkelleyperkins.com/uploads/1/3/0/5/130588584/87479223019c0.pdf
    • http://ecuadorenruta.com/uploads/1/3/0/6/130639861/433fdbc177e5f0.pdf
    • http://www.perhamfoodshelf.com/uploads/1/3/0/5/130538953/xapizok.pdf
    • http://playerpimphustler.com/uploads/1/3/0/4/130475881/fidofokaderagex_vonolilofosuda.pdf
    • http://heritagefamilybirthservices.com/uploads/1/3/0/5/130545636/faxerezo.pdf
    • http://solorzanoconstruction.net/uploads/1/3/1/1/131163867/jutifagos.pdf
    • http://mail.judithavers.com/uploads/1/3/0/5/130539734/gapugozu.pdf
    • http://funkytestbed.com/uploads/1/3/0/7/130776304/d1c91b901.pdf
    • http://d12llc.com/uploads/1/3/0/9/130969545/5012887.pdf
    • http://test1.southerncommunitystudy.org/uploads/1/3/0/7/130740149/fiziz_wijaz_pifudugaki.pdf
    • http://www.bmsince2019.com/uploads/1/3/0/6/130639539/696777.pdf
    • http://www.kylienicolejeffries.com/uploads/1/3/0/4/130435590/palop-muweriwine-bovoxupurul-nifuga.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_off000073cf.bin
ecaa3800a7d92ec30647fa57bc5191c0fe58e443f18075656f34c1aa6d9ba97a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73CF 8056 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.