Malicious PDF — malware analysis report

Static analysis result for SHA-256 91f37cce0974db3c…

MALICIOUS

PDF

46.3 KB Created: 2020-03-14 10:42:21 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 418d156dbe3c0908e12b5e2317c9f16b SHA-1: f07d5768d66cc1600f81a002fcaeb6a84a7ccd48 SHA-256: 91f37cce0974db3cee63c1bc850bb417bde6415571d9d44f0bfdd9ffad9dde7b
70 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which point to PDF files hosted on various domains. The document body text, though partially corrupted, includes a reference to 'activereports 12 licenses. licx' and a URL that appears to be a lure. The presence of a 'Visual download / call-to-action button lure' heuristic further supports the interpretation that this document is designed to trick the user into downloading a payload. No scripts were extracted from this sample.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://9oeyv.slpny.com/uploads/1/3/0/8/130814441/130814441.html#activereports+12+licenses.+licx
    • http://iphoneprinter.com/uploads/1/3/0/3/130313213/jorab_nabofatovij_donaribidagivij_batopif.pdf
    • http://psychiclifecoachgwen.com/uploads/1/3/0/6/130604022/lidoxenokepobu.pdf
    • http://saharaexchange.com/uploads/1/3/0/4/130489080/07387d4e0c15cc.pdf
    • http://gnnetworking.com/uploads/1/3/0/4/130478975/3367405.pdf
    • http://htsmedia.com/uploads/1/3/0/5/130588475/gowafi-gerisate.pdf
    • http://oxnardpoolcleaning.com/uploads/1/3/0/7/130775522/6653538.pdf
    • http://www.scflorianisimpersrl.com/uploads/1/3/0/8/130813612/duwixewikisoxumef.pdf
    • http://dsskinstudio.com/uploads/1/3/0/7/130738779/lalugusedoz.pdf
    • http://denzels.com/uploads/1/3/0/6/130604205/7762304.pdf
    • http://riverbecomesocean.com/uploads/1/3/0/7/130775962/bojuz.pdf
    • http://www.arianagibbard.com/uploads/1/3/0/7/130738949/a4fa238cb7a486.pdf
    • http://www.perfect-trucks.com/uploads/1/3/0/3/130379363/33d9123175886e2.pdf
    • http://beclaim.com/uploads/1/3/0/6/130604537/sivuzotimitoriz_mebageve_rebevubagepi.pdf
    • http://livetheivytampa.com/uploads/1/3/0/6/130621570/vomanojize_zanul_xarini_bonuzukadub.pdf
    • http://applebrookvet.com/uploads/1/3/0/6/130620700/guvapafevuz-suguk-gowap.pdf
    • http://blackcatsculpture.com/uploads/1/3/0/6/130639263/kunabukopavo.pdf
    • http://www.arjumangroup.com/uploads/1/3/0/4/130435842/a209351.pdf
    • http://pngdata4development.org.pg/uploads/1/3/0/5/130545475/eef8166d63d6.pdf
    • http://www.streamlinedigital.ca/uploads/1/3/0/6/130603890/7171731.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000777f.bin
c420fddcb23048c0bb13a9dcabd008a7b67d8524da63f496575ae291e8e317a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x777F 7932 bytes
font_01_sfnt_off00009676.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9676 16036 bytes

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