c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f

General

Target

c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f.exe
Size

108KB
MD5

55fe45dc394191dec046dc1a9b750276
SHA1

0f7f3ef559d906b6bd3cefd96274df994b09f24e
SHA256

c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f
SHA512

f2cd751c3b899195a6c69b73391997913dd93f9ffb6b887b7e1ca66e16fc13b374ef3494d16d0036cdb3aa58de4aa7aeee8a6b0bdf42d04f4a4b86adfd261982
SSDEEP

1536:MuacKiB6oQ7Lh5+sXmNt0ttJPXLq0zTrkC:DacmoIeZt0XTzToC

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

Processes:

wuejij.exec5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	wuejij.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f.exe

Executes dropped EXE 1 IoCs

Processes:

wuejij.exe

pid process

1708 wuejij.exe

pid	process
1708	wuejij.exe

Loads dropped DLL 2 IoCs

Processes:

c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f.exe

pid	process
1012	c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f.exe
1012	c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f.exe

Adds Run key to start application 2 TTPs 29 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wuejij.exec5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuejij = "C:\\Users\\Admin\\wuejij.exe /h"	wuejij.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuejij = "C:\\Users\\Admin\\wuejij.exe /y"	wuejij.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\	c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuejij = "C:\\Users\\Admin\\wuejij.exe /x"	wuejij.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuejij = "C:\\Users\\Admin\\wuejij.exe /p"	wuejij.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuejij = "C:\\Users\\Admin\\wuejij.exe /s"	wuejij.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuejij = "C:\\Users\\Admin\\wuejij.exe /k"	wuejij.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuejij = "C:\\Users\\Admin\\wuejij.exe /i"	wuejij.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuejij = "C:\\Users\\Admin\\wuejij.exe /j"	wuejij.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\	wuejij.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuejij = "C:\\Users\\Admin\\wuejij.exe /q"	wuejij.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuejij = "C:\\Users\\Admin\\wuejij.exe /v"	wuejij.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuejij = "C:\\Users\\Admin\\wuejij.exe /z"	wuejij.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuejij = "C:\\Users\\Admin\\wuejij.exe /a"	wuejij.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuejij = "C:\\Users\\Admin\\wuejij.exe /n"	wuejij.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuejij = "C:\\Users\\Admin\\wuejij.exe /e"	wuejij.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuejij = "C:\\Users\\Admin\\wuejij.exe /g"	wuejij.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuejij = "C:\\Users\\Admin\\wuejij.exe /m"	wuejij.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuejij = "C:\\Users\\Admin\\wuejij.exe /c"	wuejij.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuejij = "C:\\Users\\Admin\\wuejij.exe /d"	wuejij.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuejij = "C:\\Users\\Admin\\wuejij.exe /t"	c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuejij = "C:\\Users\\Admin\\wuejij.exe /t"	wuejij.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuejij = "C:\\Users\\Admin\\wuejij.exe /u"	wuejij.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuejij = "C:\\Users\\Admin\\wuejij.exe /r"	wuejij.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuejij = "C:\\Users\\Admin\\wuejij.exe /o"	wuejij.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuejij = "C:\\Users\\Admin\\wuejij.exe /l"	wuejij.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuejij = "C:\\Users\\Admin\\wuejij.exe /w"	wuejij.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuejij = "C:\\Users\\Admin\\wuejij.exe /f"	wuejij.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuejij = "C:\\Users\\Admin\\wuejij.exe /b"	wuejij.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

Processes:

c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f.exewuejij.exe

pid	process
1012	c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f.exewuejij.exe

pid process

1012 c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f.exe
1708 wuejij.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f.exe

description	pid	process	target process
PID 1012 wrote to memory of 1708	1012	c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f.exe	wuejij.exe
PID 1012 wrote to memory of 1708	1012	c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f.exe	wuejij.exe
PID 1012 wrote to memory of 1708	1012	c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f.exe	wuejij.exe
PID 1012 wrote to memory of 1708	1012	c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f.exe	wuejij.exe

C:\Users\Admin\AppData\Local\Temp\c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f.exe
"C:\Users\Admin\AppData\Local\Temp\c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f.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:1012

C:\Users\Admin\wuejij.exe
"C:\Users\Admin\wuejij.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:1708

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

1

T1158

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\wuejij.exe
Filesize
108KB

MD5
429e9287a10517fcd27dff3302077ce3

SHA1
5978cf18c1b9d3bbac73c4a8ba92723d1416e2ed

SHA256
908c1f82801a15219e318a6b2a0554c6642e5dc7e5620a6da871c65e61583d93

SHA512
2f806e214fe21016891d38ee0b31380d9946268f91fa7f763aee69de99e7eb1fd7295e5283b2290614ca9112019fab650702e60f6c6dde9cc473745d7159ff12

Download Submit
C:\Users\Admin\wuejij.exe
Filesize
108KB

MD5
429e9287a10517fcd27dff3302077ce3

SHA1
5978cf18c1b9d3bbac73c4a8ba92723d1416e2ed

SHA256
908c1f82801a15219e318a6b2a0554c6642e5dc7e5620a6da871c65e61583d93

SHA512
2f806e214fe21016891d38ee0b31380d9946268f91fa7f763aee69de99e7eb1fd7295e5283b2290614ca9112019fab650702e60f6c6dde9cc473745d7159ff12

Download Submit
\Users\Admin\wuejij.exe
Filesize
108KB

MD5
429e9287a10517fcd27dff3302077ce3

SHA1
5978cf18c1b9d3bbac73c4a8ba92723d1416e2ed

SHA256
908c1f82801a15219e318a6b2a0554c6642e5dc7e5620a6da871c65e61583d93

SHA512
2f806e214fe21016891d38ee0b31380d9946268f91fa7f763aee69de99e7eb1fd7295e5283b2290614ca9112019fab650702e60f6c6dde9cc473745d7159ff12

Download Submit
\Users\Admin\wuejij.exe
Filesize
108KB

MD5
429e9287a10517fcd27dff3302077ce3

SHA1
5978cf18c1b9d3bbac73c4a8ba92723d1416e2ed

SHA256
908c1f82801a15219e318a6b2a0554c6642e5dc7e5620a6da871c65e61583d93

SHA512
2f806e214fe21016891d38ee0b31380d9946268f91fa7f763aee69de99e7eb1fd7295e5283b2290614ca9112019fab650702e60f6c6dde9cc473745d7159ff12

Download Submit
memory/1012-56-0x00000000763F1000-0x00000000763F3000-memory.dmp

Filesize
8KB

Download
memory/1708-59-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads