7a0a5d13d56af8698e952fc82cf0e90695ad28cc99f4c5ea2d7374db15a20211

Analysis

max time kernel
150s
max time network
148s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
06-11-2024 13:11

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General

Target

CraxsRat V7.4/CraxsRat V7.4/CraxsRat V7.4.exe
Size

62.2MB
MD5

64c02477cd6d67ced767aa342b8f61c0
SHA1

6b488e3b0185e30721cfc49e33a2a98864464f8e
SHA256

0530181f39d786218085f317b23fc38c271c6b99bf063662c46948214a988eaa
SHA512

120da180771db3b685fa96cc648b74fbb51da37f004d754fd5470a6b1e46a67151fcdfc1e520d1057398f5315e4ceca8c75dfb6ea3e36cb55d3c775e18603346
SSDEEP

786432:cc+NX10EPRuHoA5AKF7zR/t6tKF+iS6JkKgApbLKo2R:D+NX10qwAMzttZm6CKXxIR

Score

10^/10

discovery evasion persistence

Malware Config

Signatures

Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Processes:

explorer.exesvchost.exe

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe

Executes dropped EXE 6 IoCs

Processes:

craxsrat v7.4.exe icsys.icn.exeexplorer.exespoolsv.exesvchost.exespoolsv.exe

pid	Process
2544	craxsrat v7.4.exe
2500	icsys.icn.exe
2960	explorer.exe
2836	spoolsv.exe
2728	svchost.exe
2936	spoolsv.exe

Loads dropped DLL 6 IoCs

Processes:

CraxsRat V7.4.exeicsys.icn.exeexplorer.exespoolsv.exesvchost.exe

pid	Process
2144	CraxsRat V7.4.exe
2144	CraxsRat V7.4.exe
2500	icsys.icn.exe
2960	explorer.exe
2836	spoolsv.exe
2728	svchost.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

explorer.exesvchost.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\resources\\svchost.exe RO"	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\resources\\themes\\explorer.exe RO"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\resources\\svchost.exe RO"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\resources\\themes\\explorer.exe RO"	explorer.exe

Drops file in System32 directory 2 IoCs

Processes:

explorer.exesvchost.exe

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\explorer.exe	explorer.exe
File opened for modification	C:\Windows\SysWOW64\explorer.exe	svchost.exe

Drops file in Windows directory 5 IoCs

Processes:

explorer.exeCraxsRat V7.4.exeicsys.icn.exespoolsv.exe

description	ioc	Process
File opened for modification	C:\Windows\Resources\tjud.exe	explorer.exe
File opened for modification	C:\Windows\Resources\Themes\icsys.icn.exe	CraxsRat V7.4.exe
File opened for modification	\??\c:\windows\resources\themes\explorer.exe	icsys.icn.exe
File opened for modification	\??\c:\windows\resources\spoolsv.exe	explorer.exe
File opened for modification	\??\c:\windows\resources\svchost.exe	spoolsv.exe

System Location Discovery: System Language Discovery 1 TTPs 9 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

Processes:

CraxsRat V7.4.exeicsys.icn.exeexplorer.exespoolsv.exeschtasks.exeschtasks.exesvchost.exespoolsv.exeschtasks.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CraxsRat V7.4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icsys.icn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

Processes:

schtasks.exeschtasks.exeschtasks.exe

pid	Process
2672	schtasks.exe
556	schtasks.exe
2640	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

CraxsRat V7.4.exeicsys.icn.exeexplorer.exesvchost.exe

pid	Process
2144	CraxsRat V7.4.exe
2144	CraxsRat V7.4.exe
2144	CraxsRat V7.4.exe
2144	CraxsRat V7.4.exe
2144	CraxsRat V7.4.exe
2144	CraxsRat V7.4.exe
2144	CraxsRat V7.4.exe
2144	CraxsRat V7.4.exe
2144	CraxsRat V7.4.exe
2144	CraxsRat V7.4.exe
2144	CraxsRat V7.4.exe
2144	CraxsRat V7.4.exe
2144	CraxsRat V7.4.exe
2144	CraxsRat V7.4.exe
2144	CraxsRat V7.4.exe
2144	CraxsRat V7.4.exe
2500	icsys.icn.exe
2500	icsys.icn.exe
2500	icsys.icn.exe
2500	icsys.icn.exe
2500	icsys.icn.exe
2500	icsys.icn.exe
2500	icsys.icn.exe
2500	icsys.icn.exe
2500	icsys.icn.exe
2500	icsys.icn.exe
2500	icsys.icn.exe
2500	icsys.icn.exe
2500	icsys.icn.exe
2500	icsys.icn.exe
2500	icsys.icn.exe
2500	icsys.icn.exe
2500	icsys.icn.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2728	svchost.exe
2728	svchost.exe
2728	svchost.exe
2728	svchost.exe
2728	svchost.exe
2728	svchost.exe
2728	svchost.exe
2728	svchost.exe
2728	svchost.exe
2728	svchost.exe
2728	svchost.exe
2728	svchost.exe
2728	svchost.exe
2728	svchost.exe
2728	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

Processes:

explorer.exesvchost.exe

pid	Process
2960	explorer.exe
2728	svchost.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

craxsrat v7.4.exe

pid	Process
2544	craxsrat v7.4.exe

Suspicious use of SendNotifyMessage 1 IoCs

Processes:

craxsrat v7.4.exe

pid	Process
2544	craxsrat v7.4.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

CraxsRat V7.4.exeicsys.icn.exeexplorer.exespoolsv.exesvchost.exespoolsv.exe

pid	Process
2144	CraxsRat V7.4.exe
2144	CraxsRat V7.4.exe
2500	icsys.icn.exe
2500	icsys.icn.exe
2960	explorer.exe
2960	explorer.exe
2836	spoolsv.exe
2836	spoolsv.exe
2728	svchost.exe
2728	svchost.exe
2936	spoolsv.exe
2936	spoolsv.exe

Suspicious use of WriteProcessMemory 40 IoCs

Processes:

CraxsRat V7.4.exeicsys.icn.exeexplorer.exespoolsv.exesvchost.exe

description	pid	Process	procid_target
PID 2144 wrote to memory of 2544	2144	CraxsRat V7.4.exe	31
PID 2144 wrote to memory of 2544	2144	CraxsRat V7.4.exe	31
PID 2144 wrote to memory of 2544	2144	CraxsRat V7.4.exe	31
PID 2144 wrote to memory of 2544	2144	CraxsRat V7.4.exe	31
PID 2144 wrote to memory of 2500	2144	CraxsRat V7.4.exe	32
PID 2144 wrote to memory of 2500	2144	CraxsRat V7.4.exe	32
PID 2144 wrote to memory of 2500	2144	CraxsRat V7.4.exe	32
PID 2144 wrote to memory of 2500	2144	CraxsRat V7.4.exe	32
PID 2500 wrote to memory of 2960	2500	icsys.icn.exe	33
PID 2500 wrote to memory of 2960	2500	icsys.icn.exe	33
PID 2500 wrote to memory of 2960	2500	icsys.icn.exe	33
PID 2500 wrote to memory of 2960	2500	icsys.icn.exe	33
PID 2960 wrote to memory of 2836	2960	explorer.exe	34
PID 2960 wrote to memory of 2836	2960	explorer.exe	34
PID 2960 wrote to memory of 2836	2960	explorer.exe	34
PID 2960 wrote to memory of 2836	2960	explorer.exe	34
PID 2836 wrote to memory of 2728	2836	spoolsv.exe	35
PID 2836 wrote to memory of 2728	2836	spoolsv.exe	35
PID 2836 wrote to memory of 2728	2836	spoolsv.exe	35
PID 2836 wrote to memory of 2728	2836	spoolsv.exe	35
PID 2728 wrote to memory of 2936	2728	svchost.exe	36
PID 2728 wrote to memory of 2936	2728	svchost.exe	36
PID 2728 wrote to memory of 2936	2728	svchost.exe	36
PID 2728 wrote to memory of 2936	2728	svchost.exe	36
PID 2960 wrote to memory of 2752	2960	explorer.exe	37
PID 2960 wrote to memory of 2752	2960	explorer.exe	37
PID 2960 wrote to memory of 2752	2960	explorer.exe	37
PID 2960 wrote to memory of 2752	2960	explorer.exe	37
PID 2728 wrote to memory of 2672	2728	svchost.exe	38
PID 2728 wrote to memory of 2672	2728	svchost.exe	38
PID 2728 wrote to memory of 2672	2728	svchost.exe	38
PID 2728 wrote to memory of 2672	2728	svchost.exe	38
PID 2728 wrote to memory of 556	2728	svchost.exe	41
PID 2728 wrote to memory of 556	2728	svchost.exe	41
PID 2728 wrote to memory of 556	2728	svchost.exe	41
PID 2728 wrote to memory of 556	2728	svchost.exe	41
PID 2728 wrote to memory of 2640	2728	svchost.exe	44
PID 2728 wrote to memory of 2640	2728	svchost.exe	44
PID 2728 wrote to memory of 2640	2728	svchost.exe	44
PID 2728 wrote to memory of 2640	2728	svchost.exe	44

C:\Users\Admin\AppData\Local\Temp\CraxsRat V7.4\CraxsRat V7.4\CraxsRat V7.4.exe
"C:\Users\Admin\AppData\Local\Temp\CraxsRat V7.4\CraxsRat V7.4\CraxsRat V7.4.exe"
1⤵
- Loads dropped DLL
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2144
- \??\c:\users\admin\appdata\local\temp\craxsrat v7.4\craxsrat v7.4\craxsrat v7.4.exe
  "c:\users\admin\appdata\local\temp\craxsrat v7.4\craxsrat v7.4\craxsrat v7.4.exe "
  2⤵
  - Executes dropped EXE
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:2544
- C:\Windows\Resources\Themes\icsys.icn.exe
  C:\Windows\Resources\Themes\icsys.icn.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2500
- - \??\c:\windows\resources\themes\explorer.exe
    c:\windows\resources\themes\explorer.exe
    3⤵
    - Modifies visiblity of hidden/system files in Explorer
    - Executes dropped EXE
    - Loads dropped DLL
    - Adds Run key to start application
    - Drops file in System32 directory
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2960
  - - \??\c:\windows\resources\spoolsv.exe
      c:\windows\resources\spoolsv.exe SE
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Drops file in Windows directory
      System Location Discovery: System Language Discovery
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:2836
    - - \??\c:\windows\resources\svchost.exe
        
        c:\windows\resources\svchost.exe
        5⤵
        Modifies visiblity of hidden/system files in Explorer
        Executes dropped EXE
        Loads dropped DLL
        Adds Run key to start application
        Drops file in System32 directory
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious behavior: GetForegroundWindowSpam
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:2728
      - \??\c:\windows\resources\spoolsv.exe
        
        c:\windows\resources\spoolsv.exe PR
        6⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious use of SetWindowsHookEx
        
        PID:2936
      - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 13:48 /f
        6⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:2672
      - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 13:49 /f
        6⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:556
      - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 13:50 /f
        6⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:2640
  - - C:\Windows\Explorer.exe
      C:\Windows\Explorer.exe
      4⤵
      PID:2752

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

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:\Windows\Resources\Themes\explorer.exe

Filesize
135KB

MD5
97f0c548c5163ccb48435b73ed3474cf

SHA1
6e9b1e5a8241bdb6e9e26b64182f70adb0d47be7

SHA256
926dbcd14ae53a1129aa65f15f5ac713bf2982c05c521a75c5ca7ce6af15b7c2

SHA512
c2712cb4ac3c1e36c95584f899959c54f6d090d8b1697ffbfdc899d825db6208722fde67a7376dfea41cbc8b7883106f2247ae4f42ff07b7b05b5f59c340b701

Download Submit
\Windows\Resources\Themes\icsys.icn.exe

Filesize
135KB

MD5
8af16e9175bb5820581bd95e3bf730aa

SHA1
2a0763e42e32d172dff2bf79b7dfeaf911f69fad

SHA256
1281996ce238f20d10d44d0dbf840c9c77249f6b81607629b98afa1dc96dc0b4

SHA512
a6dbf94688da4fe1833c6d6cd5100b50b673dbb6e09abe8bead5572916e3dbb8f72fc68b656ac7e029e7b66bc8f6e3a20e509cbd7328c094492260e2bd204937

Download Submit
\Windows\Resources\spoolsv.exe

Filesize
135KB

MD5
26dada42f99dba8e4ffc8d660ea3b741

SHA1
306fde442ba61599f9d33c60f948e8ccbc31eb7e

SHA256
b0ed36b032d64e04a4286c0997b3f636fb0b09f6684ba636679594a9b57b14dd

SHA512
c15ed242b846b78898016caa336baf7c10695395147ff1fc85a5986a163ac2a86261d3b0beae3b5de7f4d125dae987079bbba35b6a2b515ddd3430c010a5fdc0

Download Submit
\Windows\Resources\svchost.exe

Filesize
135KB

MD5
4442fbaab7b267748ccec9361905ae0b

SHA1
5beca9ad2792fa9da3415862ee79c8781a3de8be

SHA256
3281acf603832d4b591205b8624c3505fa7482abcc3dad1321444e7ad6448183

SHA512
2219048c83dbcafc30ecaa980ccd55684371debc137e4dc886361073eabbc361e2ecf9b3cf980704260d1995288f68700a686025f5b4e594f8ac3e31f4b477f6

Download Submit
memory/2144-75-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2144-0-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2144-20-0x00000000002C0000-0x00000000002DF000-memory.dmp

Filesize
124KB

Download
memory/2500-74-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2500-33-0x0000000001BB0000-0x0000000001BCF000-memory.dmp

Filesize
124KB

Download
memory/2544-17-0x00000000005F0000-0x00000000005FA000-memory.dmp

Filesize
40KB

Download
memory/2544-53-0x000007FEF5D53000-0x000007FEF5D54000-memory.dmp

Filesize
4KB

Download
memory/2544-29-0x000007FEF5D50000-0x000007FEF673C000-memory.dmp

Filesize
9.9MB

Download
memory/2544-76-0x000000001FE00000-0x000000001FFA6000-memory.dmp

Filesize
1.6MB

Download
memory/2544-15-0x000007FEF5D50000-0x000007FEF673C000-memory.dmp

Filesize
9.9MB

Download
memory/2544-14-0x00000000005B0000-0x00000000005EC000-memory.dmp

Filesize
240KB

Download
memory/2544-82-0x000000001F470000-0x000000001F4A6000-memory.dmp

Filesize
216KB

Download
memory/2544-13-0x0000000000580000-0x00000000005AC000-memory.dmp

Filesize
176KB

Download
memory/2544-10-0x000007FEF5D53000-0x000007FEF5D54000-memory.dmp

Filesize
4KB

Download
memory/2544-16-0x00000000005F0000-0x00000000005FA000-memory.dmp

Filesize
40KB

Download
memory/2544-52-0x000007FEF5D50000-0x000007FEF673C000-memory.dmp

Filesize
9.9MB

Download
memory/2544-12-0x0000000000570000-0x000000000057C000-memory.dmp

Filesize
48KB

Download
memory/2544-11-0x0000000000880000-0x000000000468E000-memory.dmp

Filesize
62.1MB

Download
memory/2544-66-0x00000000005F0000-0x00000000005FA000-memory.dmp

Filesize
40KB

Download
memory/2544-77-0x000007FEF5D50000-0x000007FEF673C000-memory.dmp

Filesize
9.9MB

Download
memory/2544-78-0x000007FEF5D50000-0x000007FEF673C000-memory.dmp

Filesize
9.9MB

Download
memory/2728-68-0x00000000003C0000-0x00000000003DF000-memory.dmp

Filesize
124KB

Download
memory/2728-80-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2728-81-0x00000000003C0000-0x00000000003DF000-memory.dmp

Filesize
124KB

Download
memory/2836-55-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2836-73-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2836-59-0x0000000000350000-0x000000000036F000-memory.dmp

Filesize
124KB

Download
memory/2936-72-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2960-79-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2960-54-0x0000000000430000-0x000000000044F000-memory.dmp

Filesize
124KB

Download
memory/2960-44-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download