General

  • Target
    Xeno-v1.2.0-x64.rar
  • Size 3.7MB
  • Sample261109-r8bdnsgc52
  • SHA256 6ca4eb8dd9d6d0677252a890c9a97ed45b360666c89ba39d8941267eaaee1772
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • umbral

Version
  • v1.3

C2
  • https://discord.com/api/webhooks/1326174684118650900/77XY7JQnZZjChzZIu4k1mCsTX35cO2GPUNVEQwiagpBO6Po9fkoBknhNDlwLg24_Skkk

Targets

    • Target
      Xeno-v1.2.0-x64/Install dependencies.bat
    • Size 1KB
    • SHA256 f545d644196419b41eadae3f0846888c396284cc148c780916c0d96a07f71b40
    • MD5 SHA1 SHA512 TLSH
    Score
    3/10
    • Target
      Xeno-v1.2.0-x64/Microsoft.Web.WebView2.Core.dll
    • Size 557KB
    • SHA256 11e88b2ca921e5c88f64567f11bd83cbc396c10365d40972f3359fcc7965d197
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      Xeno-v1.2.0-x64/Microsoft.Web.WebView2.WinForms.dll
    • Size 37KB
    • SHA256 5696366f7458da940cc986dc5d3d4549a2368512acd769014ecbb07b47bd88b4
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      Xeno-v1.2.0-x64/Microsoft.Web.WebView2.Wpf.dll
    • Size 50KB
    • SHA256 b628d6133bf57b7482a49aa158e45b078df73ee7d33137ac1336d24ac67ed1b4
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      Xeno-v1.2.0-x64/Newtonsoft.Json.dll
    • Size 695KB
    • SHA256 22c649f75fce5be7c7ccda8880473b634ef69ecf33f5d1ab8ad892caf47d5a07
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      Xeno-v1.2.0-x64/Xeno.dll
    • Size 1.3MB
    • SHA256 887ea84d65f10821d48dcb3678dc8834338d1e2e13915f6b6b02971a2fb0bcf2
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      Xeno-v1.2.0-x64/Xeno.exe
    • Size 472KB
    • SHA256 0fb58ac834d40277334929065b4755d357d0f2a126517af872b22dd98a3ecda3
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detects Umbral payload

    • Family: Umbral

      Umbral stealer is an open-source modular stealer written in C#.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Target
      Xeno-v1.2.0-x64/XenoUI.dll
    • Size 95KB
    • SHA256 3788b42e87c69c077868856b07c03e8606e0f49389c947231701100d99337e1c
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      Xeno-v1.2.0-x64/XenoUI.exe
    • Size 140KB
    • SHA256 326bae0bd1398234dcef4c3d71f00e30cc9b447fa963e21d6f29605f42bb7e5b
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    6/10
    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Target
      Xeno-v1.2.0-x64/bin/Monaco/index.html
    • Size 164KB
    • SHA256 f1d2c52f2803c29585b81d2eff74c56242d27e9619ee6d38081d5604c5bb1951
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    6/10
    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Target
      Xeno-v1.2.0-x64/bin/Monaco/vs/base/worker/workerMain.js
    • Size 133KB
    • SHA256 e90d1a8f116fa74431117a3ad78dde16dde060a4bf7528dfe3d5a3ad6156504b
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      Xeno-v1.2.0-x64/bin/Monaco/vs/basic-languages/lua/lua.js
    • Size 4KB
    • SHA256 ac729efb3164f48d6b08f74d4b15060c126a30d40fb4cd4fc9cc94f2e19bd7c7
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      Xeno-v1.2.0-x64/bin/Monaco/vs/editor/editor.main.js
    • Size 2.1MB
    • SHA256 b604b6148f70fe9db882cce2a7d327b2422ad2f203a805491002a8c564e3c3ff
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      Xeno-v1.2.0-x64/bin/Monaco/vs/editor/editor.main.nls.de.js
    • Size 46KB
    • SHA256 cb1c3416ff242a738c45c3b2590d7d222b159a95a69ce3b7b8d7c8d18ea70828
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      Xeno-v1.2.0-x64/bin/Monaco/vs/editor/editor.main.nls.es.js
    • Size 46KB
    • SHA256 327437ee3793e9ae0686c78196b459592c282ed2e86f95ce28d32693b76d7654
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      Xeno-v1.2.0-x64/bin/Monaco/vs/editor/editor.main.nls.fr.js
    • Size 49KB
    • SHA256 6ed837dc1905c06a20d102921ff06a0bda003c5368ed0576bf7e69494e889ae8
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10

MITRE ATT&CK Enterprise v16

Tasks

static1

stealerumbral
Score
10/10

behavioral1

execution
Score
3/10

behavioral2

execution
Score
3/10

behavioral3

Score
1/10

behavioral4

Score
1/10

behavioral5

Score
1/10

behavioral6

Score
1/10

behavioral7

Score
1/10

behavioral8

Score
1/10

behavioral9

Score
1/10

behavioral10

Score
1/10

behavioral11

Score
1/10

behavioral12

Score
1/10

behavioral13

discoveryumbralstealer
Score
10/10

behavioral14

discoveryumbralstealer
Score
10/10

behavioral15

Score
1/10

behavioral16

Score
1/10

behavioral17

discovery
Score
6/10

behavioral18

discovery
Score
6/10

behavioral19

discovery
Score
6/10

behavioral20

discovery
Score
6/10

behavioral21

execution
Score
3/10

behavioral22

execution
Score
3/10

behavioral23

execution
Score
3/10

behavioral24

execution
Score
3/10

behavioral25

execution
Score
3/10

behavioral26

execution
Score
3/10

behavioral27

execution
Score
3/10

behavioral28

execution
Score
3/10

behavioral29

execution
Score
3/10

behavioral30

execution
Score
3/10

behavioral31

execution
Score
3/10

behavioral32

execution
Score
3/10