c4296bc4f7e21ff80269545c2cc62e2dcd9ff17c23c788441945b13c33143418

Analysis

max time kernel
150s
max time network
145s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
04/10/2022, 04:19

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General

Target

c4296bc4f7e21ff80269545c2cc62e2dcd9ff17c23c788441945b13c33143418.exe
Size

120KB
MD5

53c8cf3248b56ceda5d9563363607566
SHA1

a220aa9e0845c4ed9e29c2d41dc2f2dd4efb193b
SHA256

c4296bc4f7e21ff80269545c2cc62e2dcd9ff17c23c788441945b13c33143418
SHA512

79248618f765ec4509e6b243ac7e27a01cf2fb567f7c9bd8751445e44835b6cf5d540af4678b5cfd04bb63b1b0bee4d21f90fad03b307095bff9b1dbf1a4d8ad
SSDEEP

1536:tusUZAfeEvVkdXGE2Mtf9oUrUQKVQg9F5tkV7pjuX5e6wTeU/60hQHy4kt5r:/UAemVkR2MtF3SV9qThay5r

Score

10^/10

evasion persistence

Malware Config

Signatures

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

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	c4296bc4f7e21ff80269545c2cc62e2dcd9ff17c23c788441945b13c33143418.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	crwoit.exe

Executes dropped EXE 1 IoCs

pid	Process
564	crwoit.exe

Loads dropped DLL 2 IoCs

pid	Process
2016	c4296bc4f7e21ff80269545c2cc62e2dcd9ff17c23c788441945b13c33143418.exe
2016	c4296bc4f7e21ff80269545c2cc62e2dcd9ff17c23c788441945b13c33143418.exe

Adds Run key to start application 2 TTPs 29 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\crwoit = "C:\\Users\\Admin\\crwoit.exe /o"	crwoit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\crwoit = "C:\\Users\\Admin\\crwoit.exe /w"	crwoit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\crwoit = "C:\\Users\\Admin\\crwoit.exe /i"	crwoit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\crwoit = "C:\\Users\\Admin\\crwoit.exe /b"	crwoit.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\	c4296bc4f7e21ff80269545c2cc62e2dcd9ff17c23c788441945b13c33143418.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\crwoit = "C:\\Users\\Admin\\crwoit.exe /m"	crwoit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\crwoit = "C:\\Users\\Admin\\crwoit.exe /d"	crwoit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\crwoit = "C:\\Users\\Admin\\crwoit.exe /e"	crwoit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\crwoit = "C:\\Users\\Admin\\crwoit.exe /v"	crwoit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\crwoit = "C:\\Users\\Admin\\crwoit.exe /c"	crwoit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\crwoit = "C:\\Users\\Admin\\crwoit.exe /t"	crwoit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\crwoit = "C:\\Users\\Admin\\crwoit.exe /s"	crwoit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\crwoit = "C:\\Users\\Admin\\crwoit.exe /p"	crwoit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\crwoit = "C:\\Users\\Admin\\crwoit.exe /x"	crwoit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\crwoit = "C:\\Users\\Admin\\crwoit.exe /s"	c4296bc4f7e21ff80269545c2cc62e2dcd9ff17c23c788441945b13c33143418.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\crwoit = "C:\\Users\\Admin\\crwoit.exe /a"	crwoit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\crwoit = "C:\\Users\\Admin\\crwoit.exe /r"	crwoit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\crwoit = "C:\\Users\\Admin\\crwoit.exe /q"	crwoit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\crwoit = "C:\\Users\\Admin\\crwoit.exe /k"	crwoit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\crwoit = "C:\\Users\\Admin\\crwoit.exe /z"	crwoit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\crwoit = "C:\\Users\\Admin\\crwoit.exe /n"	crwoit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\crwoit = "C:\\Users\\Admin\\crwoit.exe /u"	crwoit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\crwoit = "C:\\Users\\Admin\\crwoit.exe /g"	crwoit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\crwoit = "C:\\Users\\Admin\\crwoit.exe /f"	crwoit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\crwoit = "C:\\Users\\Admin\\crwoit.exe /j"	crwoit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\crwoit = "C:\\Users\\Admin\\crwoit.exe /y"	crwoit.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\	crwoit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\crwoit = "C:\\Users\\Admin\\crwoit.exe /l"	crwoit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\crwoit = "C:\\Users\\Admin\\crwoit.exe /h"	crwoit.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2016	c4296bc4f7e21ff80269545c2cc62e2dcd9ff17c23c788441945b13c33143418.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe
564	crwoit.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2016	c4296bc4f7e21ff80269545c2cc62e2dcd9ff17c23c788441945b13c33143418.exe
564	crwoit.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2016 wrote to memory of 564	2016	c4296bc4f7e21ff80269545c2cc62e2dcd9ff17c23c788441945b13c33143418.exe	27
PID 2016 wrote to memory of 564	2016	c4296bc4f7e21ff80269545c2cc62e2dcd9ff17c23c788441945b13c33143418.exe	27
PID 2016 wrote to memory of 564	2016	c4296bc4f7e21ff80269545c2cc62e2dcd9ff17c23c788441945b13c33143418.exe	27
PID 2016 wrote to memory of 564	2016	c4296bc4f7e21ff80269545c2cc62e2dcd9ff17c23c788441945b13c33143418.exe	27

C:\Users\Admin\AppData\Local\Temp\c4296bc4f7e21ff80269545c2cc62e2dcd9ff17c23c788441945b13c33143418.exe
"C:\Users\Admin\AppData\Local\Temp\c4296bc4f7e21ff80269545c2cc62e2dcd9ff17c23c788441945b13c33143418.exe"
1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2016
- C:\Users\Admin\crwoit.exe
  "C:\Users\Admin\crwoit.exe"
  2⤵
  - Modifies visiblity of hidden/system files in Explorer
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:564

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\crwoit.exe

Filesize
120KB

MD5
24ec6cea93094afb51b5c85d833d8944

SHA1
4620f06c04a19b19c91d521ee20e17490b92ff49

SHA256
9aa4a6592550381ccae3b0ac7cd915dcfa9014c03d00602eb0dfd7b4e44a785f

SHA512
d50ea7997547d8f35d1b0edcd2b8d8861da78719cb1744269d12a8b79d5d5c3ef4269405f9a44ef3e67c424aa25a373f57096ab7540ca554b15ad03a89589cdc

Download Submit
C:\Users\Admin\crwoit.exe

Filesize
120KB

MD5
24ec6cea93094afb51b5c85d833d8944

SHA1
4620f06c04a19b19c91d521ee20e17490b92ff49

SHA256
9aa4a6592550381ccae3b0ac7cd915dcfa9014c03d00602eb0dfd7b4e44a785f

SHA512
d50ea7997547d8f35d1b0edcd2b8d8861da78719cb1744269d12a8b79d5d5c3ef4269405f9a44ef3e67c424aa25a373f57096ab7540ca554b15ad03a89589cdc

Download Submit
\Users\Admin\crwoit.exe

Filesize
120KB

MD5
24ec6cea93094afb51b5c85d833d8944

SHA1
4620f06c04a19b19c91d521ee20e17490b92ff49

SHA256
9aa4a6592550381ccae3b0ac7cd915dcfa9014c03d00602eb0dfd7b4e44a785f

SHA512
d50ea7997547d8f35d1b0edcd2b8d8861da78719cb1744269d12a8b79d5d5c3ef4269405f9a44ef3e67c424aa25a373f57096ab7540ca554b15ad03a89589cdc

Download Submit
\Users\Admin\crwoit.exe

Filesize
120KB

MD5
24ec6cea93094afb51b5c85d833d8944

SHA1
4620f06c04a19b19c91d521ee20e17490b92ff49

SHA256
9aa4a6592550381ccae3b0ac7cd915dcfa9014c03d00602eb0dfd7b4e44a785f

SHA512
d50ea7997547d8f35d1b0edcd2b8d8861da78719cb1744269d12a8b79d5d5c3ef4269405f9a44ef3e67c424aa25a373f57096ab7540ca554b15ad03a89589cdc

Download Submit
memory/564-66-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/564-71-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2016-57-0x00000000757A1000-0x00000000757A3000-memory.dmp

Filesize
8KB

Download
memory/2016-64-0x0000000002790000-0x00000000027B0000-memory.dmp

Filesize
128KB

Download
memory/2016-65-0x0000000002790000-0x00000000027B0000-memory.dmp

Filesize
128KB

Download
memory/2016-56-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2016-69-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2016-70-0x0000000002790000-0x00000000027B0000-memory.dmp

Filesize
128KB

Download