Malicious PDF — malware analysis report

Static analysis result for SHA-256 78f2d8ed6b995a2c…

MALICIOUS

PDF

32.2 KB Created: 2020-03-16 15:26:05 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 06a528440c6aa48fcd762668eeea1449 SHA-1: 7fa1f5bb79940630e95291a2fa8bee1637b463f5 SHA-256: 78f2d8ed6b995a2cdf45095de6e7cd5e416122e513d66d4cc0115c1e68f54b2b
92 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, characteristic of a link farm or SEO spam. The document body, though partially corrupted, suggests a lure related to a label maker. The primary heuristic indicates a PDF link farm, with numerous URLs pointing to other PDF files hosted on various domains. This suggests a campaign to drive traffic to potentially malicious sites or to distribute 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://v9zhr.slpny.com/uploads/1/3/0/4/130476318/130476318.html#how+to+use+brother+pt-d600+label+maker
    • http://www.citrix.mmac.org/uploads/1/3/0/4/130436054/626815.pdf
    • http://www.tutoringbylindajoy.com/uploads/1/3/0/6/130620356/6654eb7787.pdf
    • http://www.iavtn.net/uploads/1/3/0/6/130621730/2ee59ebb.pdf
    • http://saintclairstorage.com/uploads/1/3/0/4/130483576/4852221.pdf
    • http://deceptivapparel.com/uploads/1/3/0/5/130539768/05d99aaa79d.pdf
    • http://degambs.com/uploads/1/3/0/7/130740045/wawowisi.pdf
    • http://molokaishores.info/uploads/1/3/0/8/130814874/5754379.pdf
    • http://palmbreezerealty.com/uploads/1/3/0/4/130476395/318980.pdf
    • http://thejerseyoutlet.com/uploads/1/3/0/5/130588802/vopepug-tokuxe-bijedotejofufu-voxutapiv.pdf
    • http://oaktreecapllc.com/uploads/1/3/0/2/130289430/telewupemivef.pdf
    • http://www.pinemountainlakehouse.com/uploads/1/3/0/6/130620937/a007daa7b.pdf
    • http://local-81.com/uploads/1/3/0/5/130590374/posuzivevepa.pdf
    • http://commandlineidiot.com/uploads/1/3/0/3/130379503/xomonasomiwo-ziwulakenuw-mefox-kilati.pdf
    • http://timerlay.net/uploads/1/3/0/3/130323996/kupadaloza-xedenija-bejeten-rifiworewa.pdf
    • http://gemzcashhomesolutions.org/uploads/1/3/1/0/131069808/tupusowusijakajop.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_off000057d3.bin
0ea625056ef9a3ca24aab60ec7ffbeabeb3fe11e043973eaf0743b011c96773a
pdf-font-stream PDF embedded font (sfnt) at offset 0x57D3 7096 bytes