73fa429d1f9d8d6c8b019fb8988b1b853df194aefe8bd1461c83c815d8addcb0

General

Target

73fa429d1f9d8d6c8b019fb8988b1b853df194aefe8bd1461c83c815d8addcb0.exe
Size

212KB
MD5

187fbb77103a8daf0bd9f8e0ad3e6a80
SHA1

e0bcb7e771c4e0314ea1e6edb1e500eb166ea8b9
SHA256

73fa429d1f9d8d6c8b019fb8988b1b853df194aefe8bd1461c83c815d8addcb0
SHA512

6a7616b966699859a4042103c68c1cdc23438c95f0986be64f9a8a68e6545f496e724c365b6999f8db090f02478a51c912313d4918750fa313d88ad97b29b46b
SSDEEP

6144:ep4VqIrqJQNbufrI4ukDnx/8vtvwzsmMAEu3Wev5kBirl87VFt6En9x7Xf7oufax:ep4zmGbMrI4ukDnx/8vtvwzsmMAEGHv9

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:

73fa429d1f9d8d6c8b019fb8988b1b853df194aefe8bd1461c83c815d8addcb0.execeofuf.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	73fa429d1f9d8d6c8b019fb8988b1b853df194aefe8bd1461c83c815d8addcb0.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	ceofuf.exe

Executes dropped EXE 1 IoCs

Processes:

ceofuf.exe

pid process

1416 ceofuf.exe

pid	process
1416	ceofuf.exe

Loads dropped DLL 2 IoCs

Processes:

73fa429d1f9d8d6c8b019fb8988b1b853df194aefe8bd1461c83c815d8addcb0.exe

pid	process
544	73fa429d1f9d8d6c8b019fb8988b1b853df194aefe8bd1461c83c815d8addcb0.exe
544	73fa429d1f9d8d6c8b019fb8988b1b853df194aefe8bd1461c83c815d8addcb0.exe

Adds Run key to start application 2 TTPs 53 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

ceofuf.exe73fa429d1f9d8d6c8b019fb8988b1b853df194aefe8bd1461c83c815d8addcb0.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /j"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /K"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /l"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /C"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /S"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /g"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /s"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /v"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /f"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /c"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /i"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /A"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /q"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /h"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /b"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /F"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /J"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /a"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /r"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /T"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /D"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /z"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /R"	ceofuf.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /d"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /t"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /B"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /M"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /m"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /p"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /A"	73fa429d1f9d8d6c8b019fb8988b1b853df194aefe8bd1461c83c815d8addcb0.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /w"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /u"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /G"	ceofuf.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\	73fa429d1f9d8d6c8b019fb8988b1b853df194aefe8bd1461c83c815d8addcb0.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /Z"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /X"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /k"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /V"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /Q"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /y"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /e"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /o"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /I"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /n"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /Y"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /H"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /W"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /P"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /E"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /U"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /N"	ceofuf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ceofuf = "C:\\Users\\Admin\\ceofuf.exe /L"	ceofuf.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:

73fa429d1f9d8d6c8b019fb8988b1b853df194aefe8bd1461c83c815d8addcb0.execeofuf.exe

pid	process
544	73fa429d1f9d8d6c8b019fb8988b1b853df194aefe8bd1461c83c815d8addcb0.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe
1416	ceofuf.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

73fa429d1f9d8d6c8b019fb8988b1b853df194aefe8bd1461c83c815d8addcb0.execeofuf.exe

pid process

544 73fa429d1f9d8d6c8b019fb8988b1b853df194aefe8bd1461c83c815d8addcb0.exe
1416 ceofuf.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

73fa429d1f9d8d6c8b019fb8988b1b853df194aefe8bd1461c83c815d8addcb0.exe

description	pid	process	target process
PID 544 wrote to memory of 1416	544	73fa429d1f9d8d6c8b019fb8988b1b853df194aefe8bd1461c83c815d8addcb0.exe	ceofuf.exe
PID 544 wrote to memory of 1416	544	73fa429d1f9d8d6c8b019fb8988b1b853df194aefe8bd1461c83c815d8addcb0.exe	ceofuf.exe
PID 544 wrote to memory of 1416	544	73fa429d1f9d8d6c8b019fb8988b1b853df194aefe8bd1461c83c815d8addcb0.exe	ceofuf.exe
PID 544 wrote to memory of 1416	544	73fa429d1f9d8d6c8b019fb8988b1b853df194aefe8bd1461c83c815d8addcb0.exe	ceofuf.exe

C:\Users\Admin\AppData\Local\Temp\73fa429d1f9d8d6c8b019fb8988b1b853df194aefe8bd1461c83c815d8addcb0.exe
"C:\Users\Admin\AppData\Local\Temp\73fa429d1f9d8d6c8b019fb8988b1b853df194aefe8bd1461c83c815d8addcb0.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:544

C:\Users\Admin\ceofuf.exe
"C:\Users\Admin\ceofuf.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:1416

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\ceofuf.exe

Filesize
212KB

MD5
67f1ce5e21dc325a3229d97d4cfe64cd

SHA1
591c4e747be6d4d742d206619d77a245daf26637

SHA256
6061cd0e3e4d07dc09be02d20b92ff9a907a44c8fcd4411b3125052f3ba892d6

SHA512
f05d13b518be01daaf8aa7adc65d36b32c684f12120c0b9dca40d14e51adcd7682a2e6e3615975fac11d5ce7a83d68b67e7ed6fb0e8aa7c107604527e33c0b9a

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

Filesize
212KB

MD5
67f1ce5e21dc325a3229d97d4cfe64cd

SHA1
591c4e747be6d4d742d206619d77a245daf26637

SHA256
6061cd0e3e4d07dc09be02d20b92ff9a907a44c8fcd4411b3125052f3ba892d6

SHA512
f05d13b518be01daaf8aa7adc65d36b32c684f12120c0b9dca40d14e51adcd7682a2e6e3615975fac11d5ce7a83d68b67e7ed6fb0e8aa7c107604527e33c0b9a

Download Submit
\Users\Admin\ceofuf.exe

Filesize
212KB

MD5
67f1ce5e21dc325a3229d97d4cfe64cd

SHA1
591c4e747be6d4d742d206619d77a245daf26637

SHA256
6061cd0e3e4d07dc09be02d20b92ff9a907a44c8fcd4411b3125052f3ba892d6

SHA512
f05d13b518be01daaf8aa7adc65d36b32c684f12120c0b9dca40d14e51adcd7682a2e6e3615975fac11d5ce7a83d68b67e7ed6fb0e8aa7c107604527e33c0b9a

Download Submit
\Users\Admin\ceofuf.exe

Filesize
212KB

MD5
67f1ce5e21dc325a3229d97d4cfe64cd

SHA1
591c4e747be6d4d742d206619d77a245daf26637

SHA256
6061cd0e3e4d07dc09be02d20b92ff9a907a44c8fcd4411b3125052f3ba892d6

SHA512
f05d13b518be01daaf8aa7adc65d36b32c684f12120c0b9dca40d14e51adcd7682a2e6e3615975fac11d5ce7a83d68b67e7ed6fb0e8aa7c107604527e33c0b9a

Download Submit
memory/544-56-0x0000000075A91000-0x0000000075A93000-memory.dmp

Filesize
8KB

Download
memory/1416-59-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads