PDF malware analysis — malicious · a4c1944d93d093c2

MALICIOUS

PDF

38.9 KB Created: 2020-03-29 04:26:39 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)

MD5: 971d6709c162792804826d4faf85812f SHA-1: 2d81a56656aef4e22d7b047cce9cace6bd4dbaf6 SHA-256: a4c1944d93d093c215f8f750fa57535891669f2329f3f288208145c4ac379f4b

92 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external links, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier strongly indicated maliciousness. The primary lure appears to be product-related, as seen in the document body and one of the extracted URLs. No scripts were extracted from this sample, limiting the analysis of direct payload delivery mechanisms.

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://74-123-78-254.mgwnet.com/uploads/1/3/0/7/130740562/130740562.html#hoover+steam+express+handheld+steam+cleaner+ssnh1000
- http://wwwgarvans.com/uploads/1/3/0/5/130590030/dafisuzurojuju.pdf
- http://onehundredrobotslab.com/uploads/1/3/0/3/130379051/1521370.pdf
- http://twomachines.org/uploads/1/3/0/4/130483821/nijinatoxepuj.pdf
- http://ccprofessionaltaxservices.net/uploads/1/3/0/2/130272579/varino-xesabajoxuvem.pdf
- http://doveshanksbitters.com/uploads/1/3/0/2/130271121/repalamo.pdf
- http://martinasmithconsulting.org/uploads/1/3/1/1/131164223/xifov-majegiwoti-notasalabejev.pdf
- http://limo-austin.net/uploads/1/3/0/4/130476709/rojifomaxut-sedimitip.pdf
- http://www.betterhealthsupport.net/uploads/1/3/0/5/130543772/8673742.pdf
- http://mrvangeelsclass.com/uploads/1/3/0/2/130291996/3720427.pdf
- http://alicesnurserycenter.com/uploads/1/3/0/8/130874333/simeve.pdf
- http://50klawn.net/uploads/1/3/0/4/130483939/fawebukumi.pdf
- http://unitaxcpa.com/uploads/1/3/1/4/131407253/3f45d4b9be2f.pdf
- http://lwcalifornia.com/uploads/1/3/0/8/130874360/82dcf4.pdf
- http://vegasjunkmovers.com/uploads/1/3/0/5/130589031/4895cb5e4025.pdf
- http://howardmarling.com/uploads/1/3/0/5/130589435/8018522.pdf
- http://www.fullcircleexpression.com/uploads/1/3/0/2/130287211/531430.pdf
- http://rentalsandroomates.net/uploads/1/3/0/6/130605229/risibem.pdf
- http://11misconceptions.com/uploads/1/3/0/2/130272918/wejamij-fosodagikova.pdf
- http://dashijieyulechengpingji.br3h.com/uploads/1/3/0/7/130776760/660615.pdf
- http://eliarbel.com/uploads/1/3/0/6/130639911/tewuk.pdf
- http://cuberexpress.club/uploads/1/3/0/2/130272355/pawozasubuler_regexalini_livoranoxuga_vigigikafibira.pdf
- http://www.dwcmanagement.com/uploads/1/3/0/8/130814208/4236461.pdf
- http://dariobova.com/uploads/1/3/0/8/130813366/5465212.pdf
- http://cardenschooltehachapi.org/uploads/1/3/0/2/130291415/3048090.pdf
- http://cardenschool
- 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_off00006efe.bin` `fda09a5d0aa8a608e83c53c26c43fd1b4e32d188537abcad7373def3d0c6ad7e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6EFE	7872 bytes

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