Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea79085ba398a4b7…

MALICIOUS

PDF

54.5 KB Created: 2020-03-07 22:08:17 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: b823763bda372eb8a4dd4c938c6d0fe3 SHA-1: bef187cf14854a59911d9f700b5c2858deb039ae SHA-256: ea79085ba398a4b776f8421ecdb88c7babf8d517e1de66fae51211ba0c650b4a
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.003 Windows Command Shell

The PDF contains a large number of external links, a technique often used for SEO manipulation or to redirect users to malicious sites. The heuristic 'SE_LOLBIN_RUN_COMMAND' indicates that the document contains instructions for executing Windows scripting tools, suggesting an intent to download and execute further payloads. The embedded URLs are likely part of this redirection chain.

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.
  • Visible LOLBin command execution instruction high SE_LOLBIN_RUN_COMMAND
    Document contains instructions or visible command text involving Windows script/execution tools such as PowerShell, mshta, cmd, rundll32, or regsvr32
  • 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://www.thecurlcoacheducator.com/uploads/1/3/0/7/130775203/130775203.html#grade+3+cloze+reading+passages
    • http://www.fixersinalgarve.com/uploads/1/3/0/5/130538918/guwamedufu.pdf
    • http://mail.fmg-grosshoechstetten.ch/uploads/1/3/0/2/130270936/f93b41baa42420.pdf
    • http://thelifeyouwant.org/uploads/1/3/0/8/130874019/buzonopepijipirez.pdf
    • http://www.juvenilecompetency.com/uploads/1/3/0/2/130289443/pewamedolerox.pdf
    • http://avirllavigne.com/uploads/1/3/0/2/130288448/6225178.pdf
    • http://oddstuff.org/uploads/1/3/0/4/130475981/7231787.pdf
    • http://waialaekahalachapel.com/uploads/1/3/0/7/130738661/5b8c20815d.pdf
    • http://peterbuiltproductions.com/uploads/1/3/0/5/130539734/c7589819e6.pdf
    • http://johanseneuporiaevents.com/uploads/1/3/0/6/130604382/8496028.pdf
    • http://martinbartos.org/uploads/1/3/0/7/130739727/d94df56a6d2e.pdf
    • http://www.dt-ur.com/uploads/1/3/0/6/130604626/1113766.pdf
    • http://a1hourservice.com/uploads/1/3/0/2/130272406/ced48a3132.pdf
    • http://designsbydayna.com/uploads/1/3/0/4/130489696/2147371.pdf
    • http://www.ascensioncounselling.com/uploads/1/3/0/6/130604505/bunaxiludaniv.pdf
    • http://ark47.com/uploads/1/3/0/7/130775979/povipado_gelatofuboridev.pdf
    • http://onlinefitnessunderground.com/uploads/1/3/0/7/130740598/mawadabaw_gipaganoxawadow_namevipad.pdf
    • http://expressyourselfpreschool.com/uploads/1/3/0/5/130551369/vofovawamimo.pdf
    • http://paintprotectionhawaii.com/uploads/1/3/0/8/130813461/b8fd1095e183.pdf
    • http://unbridledaffair.com/uploads/1/3/0/7/130776106/zelexef.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_off0000a9b8.bin
42b9da2a457aa9ef9f88a94c95f8c81e0f6f138f2ff5cb6589cdd2518be82a04
pdf-font-stream PDF embedded font (sfnt) at offset 0xA9B8 8564 bytes