PDF malware analysis — malicious · bcfd1de4f139f987

MALICIOUS

PDF

36.0 KB Created: 2020-05-13 20:49:13 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)

MD5: b8f9bcea3321942ea227854159008b82 SHA-1: 31b9f1f2142fafff0ecf1415ac60b7b25fdcbf01 SHA-256: bcfd1de4f139f98778fd82dd7618cee3bd8c97158020d4ac81863290d2308839

92 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 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 ML classifier strongly indicated maliciousness. The document body, though partially corrupted, contains references to URLs and appears to be a lure. No scripts were extracted from this sample.

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://mariasextonphotography.com/uploads/1/3/1/3/131384708/131384708.html#trig+identities+cheat+sheet+calculus
- http://betterwellnesskc.com/uploads/1/3/0/7/130776425/4854383.pdf
- http://appliedspirit.org/uploads/1/3/0/7/130739780/3635684.pdf
- http://rubyandamber.com/uploads/1/3/1/8/131856543/peseduwupuze.pdf
- http://tuplusvalia.com/uploads/1/3/1/4/131453150/0397b745d5.pdf
- http://rigchenma.com/uploads/1/3/0/3/130323471/ae6a10b97597.pdf
- http://pollackmyballs.com/uploads/1/3/0/6/130621063/sisowegokefejemini.pdf
- http://rent-a-ringer.com/uploads/1/3/1/4/131456267/nutedex.pdf
- http://legendsofnigeriabasketball.org/uploads/1/3/0/6/130639936/sigegazevivitazan.pdf
- http://youaremydj.com/uploads/1/3/0/9/130969553/dizumejozoxu.pdf
- http://247cleaningservice.com/uploads/1/3/0/9/130969740/8470259.pdf
- http://ppmanagementgroup.net/uploads/1/3/0/3/130313158/4460099.pdf
- http://willistower-soarabove.com/uploads/1/3/0/6/130621808/4612711.pdf
- http://ascendsvcs.com/uploads/1/3/0/5/130551472/e84ea29320d16.pdf
- http://roldanbpi.co/uploads/1/3/0/7/130738909/mumowekepufejaviw.pdf
- http://bethelmoms33.com/uploads/1/3/1/3/131382346/runivibax_furuzawekiraxep.pdf
- http://dreamdanceschool.net/uploads/1/3/0/7/130739783/sakikopola_demupudiw.pdf
- http://360landscapingdesign.com/uploads/1/3/0/6/130621839/xugabanedexakujufil.pdf
- http://drmessernd.com/uploads/1/3/1/4/131453857/dugabikijefataxire.pdf
- http://pinkbunnycompany.com/uploads/1/3/0/5/130590537/gujogu-rexizumunuduku-musiwajisuli.pdf
- http://akolehwellness.services/uploads/1/3/0/7/130739577/215238118c.pdf
- http://sweetetxea.com/uploads/1/3/1/8/131860204/mijixurig.pdf
- http://jahrgent.com/uploads/1/3/0/8/130814353/8410978.pdf
- http://curtissosa.com/uploads/1/3/0/4/130478205/9cc17c83.pdf
- http://999true.com/uploads/1/3/0/5/130539437/798592.pdf
- http://zachwroberts.com/uploads/1/3/1/4/131437045/ferexobas.pdf
- http://dreamdanceschool.net/uploads/1/3/0/7/13
- 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.

Filename	Kind	Source	Size
`font_00_sfnt_off000062d6.bin` `ed3bcce963a798dc7b71fbef0dbcd5c291be4fcfe99bfc0d58055a2d13648933`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x62D6	9592 bytes

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