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
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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
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1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
1708	wuejij.exe
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1708	wuejij.exe
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1708	wuejij.exe
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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 Enterprise 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

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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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 Enterprise v6

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Downloads