e3c44d58009a5b4176ceb2cd3f8d6c5fe59a8b6b63e31704254b8ac8e11dd839

Analysis

max time kernel
91s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
19-11-2022 06:16

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General

Target

e3c44d58009a5b4176ceb2cd3f8d6c5fe59a8b6b63e31704254b8ac8e11dd839.exe
Size

48KB
MD5

25cf7b8eb6bd27845eb08b4cd2b61161
SHA1

38e2963e468bceafa69678536b802ea5fe2b7a00
SHA256

e3c44d58009a5b4176ceb2cd3f8d6c5fe59a8b6b63e31704254b8ac8e11dd839
SHA512

8417523f565c20ea6620a5cfdf84f1d5509e552c7efead74b8fad9a40782a288d517efc1992b629003996d20b3a4f84ec8d6d4f7ffeb6813dd9b229010389654
SSDEEP

768:2pX3RVKD5K71CRLnzpayTA27iRnauh2oNlTnoCUxcEe4:0nqXzFANQu9ot5e4

Score

8^/10

discovery exploit persistence

Malware Config

Signatures

Possible privilege escalation attempt 2 IoCs
exploit

Processes:

takeown.exeicacls.exe

pid process

1576 takeown.exe
1568 icacls.exe
Modifies file permissions 1 TTPs 2 IoCs
discovery

File Permissions Modification
T1222

Processes:

takeown.exeicacls.exe

pid process

1576 takeown.exe
1568 icacls.exe

pid	process
1576	takeown.exe
1568	icacls.exe

pid	process
1576	takeown.exe
1568	icacls.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

e3c44d58009a5b4176ceb2cd3f8d6c5fe59a8b6b63e31704254b8ac8e11dd839.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	e3c44d58009a5b4176ceb2cd3f8d6c5fe59a8b6b63e31704254b8ac8e11dd839.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\JdWegah = "c:\\windows\\system32\\hchjw.exe"	e3c44d58009a5b4176ceb2cd3f8d6c5fe59a8b6b63e31704254b8ac8e11dd839.exe

Drops file in System32 directory 2 IoCs

Processes:

e3c44d58009a5b4176ceb2cd3f8d6c5fe59a8b6b63e31704254b8ac8e11dd839.exe

description	ioc	process
File created	\??\c:\windows\SysWOW64\hchjw.exe	e3c44d58009a5b4176ceb2cd3f8d6c5fe59a8b6b63e31704254b8ac8e11dd839.exe
File opened for modification	\??\c:\windows\SysWOW64\hchjw.exe	e3c44d58009a5b4176ceb2cd3f8d6c5fe59a8b6b63e31704254b8ac8e11dd839.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

e3c44d58009a5b4176ceb2cd3f8d6c5fe59a8b6b63e31704254b8ac8e11dd839.exe

pid process

2736 e3c44d58009a5b4176ceb2cd3f8d6c5fe59a8b6b63e31704254b8ac8e11dd839.exe

pid	process
2736	e3c44d58009a5b4176ceb2cd3f8d6c5fe59a8b6b63e31704254b8ac8e11dd839.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

e3c44d58009a5b4176ceb2cd3f8d6c5fe59a8b6b63e31704254b8ac8e11dd839.exe

description	pid	process	target process
PID 2736 wrote to memory of 1576	2736	e3c44d58009a5b4176ceb2cd3f8d6c5fe59a8b6b63e31704254b8ac8e11dd839.exe	takeown.exe
PID 2736 wrote to memory of 1576	2736	e3c44d58009a5b4176ceb2cd3f8d6c5fe59a8b6b63e31704254b8ac8e11dd839.exe	takeown.exe
PID 2736 wrote to memory of 1576	2736	e3c44d58009a5b4176ceb2cd3f8d6c5fe59a8b6b63e31704254b8ac8e11dd839.exe	takeown.exe
PID 2736 wrote to memory of 1568	2736	e3c44d58009a5b4176ceb2cd3f8d6c5fe59a8b6b63e31704254b8ac8e11dd839.exe	icacls.exe
PID 2736 wrote to memory of 1568	2736	e3c44d58009a5b4176ceb2cd3f8d6c5fe59a8b6b63e31704254b8ac8e11dd839.exe	icacls.exe
PID 2736 wrote to memory of 1568	2736	e3c44d58009a5b4176ceb2cd3f8d6c5fe59a8b6b63e31704254b8ac8e11dd839.exe	icacls.exe

C:\Users\Admin\AppData\Local\Temp\e3c44d58009a5b4176ceb2cd3f8d6c5fe59a8b6b63e31704254b8ac8e11dd839.exe
"C:\Users\Admin\AppData\Local\Temp\e3c44d58009a5b4176ceb2cd3f8d6c5fe59a8b6b63e31704254b8ac8e11dd839.exe"
1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2736

C:\Windows\SysWOW64\takeown.exe
C:\Windows\system32\takeown.exe /f "c:\windows\system32\hchjw.exe"
2⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:1576

C:\Windows\SysWOW64\icacls.exe
C:\Windows\system32\icacls.exe "c:\windows\system32\hchjw.exe" /grant Users:F
2⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:1568

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

File Permissions Modification

T1222

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

\??\c:\windows\SysWOW64\hchjw.exe
Filesize
48KB

MD5
25cf7b8eb6bd27845eb08b4cd2b61161

SHA1
38e2963e468bceafa69678536b802ea5fe2b7a00

SHA256
e3c44d58009a5b4176ceb2cd3f8d6c5fe59a8b6b63e31704254b8ac8e11dd839

SHA512
8417523f565c20ea6620a5cfdf84f1d5509e552c7efead74b8fad9a40782a288d517efc1992b629003996d20b3a4f84ec8d6d4f7ffeb6813dd9b229010389654

Download Submit
memory/1568-135-0x0000000000000000-mapping.dmp

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memory/1576-134-0x0000000000000000-mapping.dmp

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