Malicious PDF — malware analysis report

Static analysis result for SHA-256 47973bc53c365bd1…

MALICIOUS

PDF

37.3 KB Created: 2020-03-29 07:46:42 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: a325d327b31d78dce78c455341320e09 SHA-1: 2894529c7e401a4f86201e6045b9f6c6c0d13ca6 SHA-256: 47973bc53c365bd13461c86b583036b3d43e771260e2983e8681b02c471e82be
92 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

The PDF document was generated by wkhtmltopdf and contains a large number of external links, indicating a link farm or SEO poisoning tactic. The ML classifier strongly flagged this PDF as malicious. The embedded URLs suggest a redirection or hosting mechanism for further malicious activity.

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://richter-family.rominastiebenphotography.com/uploads/1/3/0/7/130740356/130740356.html#brimnes+headboard+instructions+pdf
    • http://jasonmarshallconsulting.com/uploads/1/3/0/9/130969714/7482173.pdf
    • http://www.truthsfortots.net/uploads/1/3/0/4/130476738/05146533b14.pdf
    • http://minneapolisinteriorpaintpros.com/uploads/1/3/0/6/130621791/8960012.pdf
    • http://walteralbertglobal.com/uploads/1/3/0/3/130312957/2188735.pdf
    • http://victoryit.info/uploads/1/3/0/5/130546392/tipud.pdf
    • http://nathantylerdavisfoundation.com/uploads/1/3/0/7/130739332/62d951f.pdf
    • http://prolifecharleston.net/uploads/1/3/0/6/130604694/2540715.pdf
    • http://karencourtapartments.net/uploads/1/3/0/4/130436299/nozebudazix.pdf
    • http://platuworlds2017.com/uploads/1/3/0/6/130621864/rinanavigegaziz.pdf
    • http://mx.dirtysoapmusic.com/uploads/1/3/0/2/130272484/5774774.pdf
    • http://musicstockphoto.com/uploads/1/3/0/5/130550967/562919.pdf
    • http://mhevesi.com/uploads/1/3/1/0/131070688/dewigoguxatoso.pdf
    • http://epiclifestylemanagement.com/uploads/1/3/0/9/130969218/kajujutefasus.pdf
    • http://muskegonapostolic.com/uploads/1/3/0/6/130603925/vakigule.pdf
    • http://redifinancialservices.com/uploads/1/3/1/1/131164383/8fcb68.pdf
    • http://womenheartofwestdenver.org/uploads/1/3/0/7/130739087/5e43fbc1c93.pdf
    • http://smokiesbeer.com/uploads/1/3/0/5/130590458/8bdf3215a85.pdf
    • http://virile.media/uploads/1/3/1/3/131380258/kosepata.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_off00006a97.bin
97872184211c498bc65be3edd209f3dddf4402a0dabe62bb16791b16ee62cae8
pdf-font-stream PDF embedded font (sfnt) at offset 0x6A97 7500 bytes