bf8a377a7a55fed45ce59af9fd5f3f8c82d7ac7814f5e90ffd28c6e383a5f9a1

General

Target

bf8a377a7a55fed45ce59af9fd5f3f8c82d7ac7814f5e90ffd28c6e383a5f9a1.exe
Size

104KB
MD5

c05544d783c008a2cc5d280c0a2f203a
SHA1

4191627dda5df95c9f47c8db4f6d572d4770600e
SHA256

bf8a377a7a55fed45ce59af9fd5f3f8c82d7ac7814f5e90ffd28c6e383a5f9a1
SHA512

693a6726f9e0a3c41786090b2fe327b21df08a13b12270f40672f1af9bead692f13daad09bf3f7b0f503c75ba2a9c08ff7143aa6069650fd3950c1e68302f09c
SSDEEP

1536:wBLRvx+u1Ds+HBchhQKNIqpOcQv0sTEFSocwB+XjLlm:QM+eiKNZJQv0sToB+3s

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:

bf8a377a7a55fed45ce59af9fd5f3f8c82d7ac7814f5e90ffd28c6e383a5f9a1.exesiuhuz.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"	bf8a377a7a55fed45ce59af9fd5f3f8c82d7ac7814f5e90ffd28c6e383a5f9a1.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	siuhuz.exe

Executes dropped EXE 1 IoCs

Processes:

siuhuz.exe

pid process

1352 siuhuz.exe

pid	process
1352	siuhuz.exe

Loads dropped DLL 2 IoCs

Processes:

bf8a377a7a55fed45ce59af9fd5f3f8c82d7ac7814f5e90ffd28c6e383a5f9a1.exe

pid	process
1504	bf8a377a7a55fed45ce59af9fd5f3f8c82d7ac7814f5e90ffd28c6e383a5f9a1.exe
1504	bf8a377a7a55fed45ce59af9fd5f3f8c82d7ac7814f5e90ffd28c6e383a5f9a1.exe

Adds Run key to start application 2 TTPs 29 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

siuhuz.exebf8a377a7a55fed45ce59af9fd5f3f8c82d7ac7814f5e90ffd28c6e383a5f9a1.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\siuhuz = "C:\\Users\\Admin\\siuhuz.exe /d"	siuhuz.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\siuhuz = "C:\\Users\\Admin\\siuhuz.exe /e"	siuhuz.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\siuhuz = "C:\\Users\\Admin\\siuhuz.exe /j"	siuhuz.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\siuhuz = "C:\\Users\\Admin\\siuhuz.exe /o"	bf8a377a7a55fed45ce59af9fd5f3f8c82d7ac7814f5e90ffd28c6e383a5f9a1.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\siuhuz = "C:\\Users\\Admin\\siuhuz.exe /q"	siuhuz.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\siuhuz = "C:\\Users\\Admin\\siuhuz.exe /r"	siuhuz.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\siuhuz = "C:\\Users\\Admin\\siuhuz.exe /s"	siuhuz.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\siuhuz = "C:\\Users\\Admin\\siuhuz.exe /y"	siuhuz.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\siuhuz = "C:\\Users\\Admin\\siuhuz.exe /i"	siuhuz.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\siuhuz = "C:\\Users\\Admin\\siuhuz.exe /u"	siuhuz.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\siuhuz = "C:\\Users\\Admin\\siuhuz.exe /b"	siuhuz.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\siuhuz = "C:\\Users\\Admin\\siuhuz.exe /t"	siuhuz.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\siuhuz = "C:\\Users\\Admin\\siuhuz.exe /h"	siuhuz.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\siuhuz = "C:\\Users\\Admin\\siuhuz.exe /n"	siuhuz.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\siuhuz = "C:\\Users\\Admin\\siuhuz.exe /a"	siuhuz.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\siuhuz = "C:\\Users\\Admin\\siuhuz.exe /k"	siuhuz.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\siuhuz = "C:\\Users\\Admin\\siuhuz.exe /f"	siuhuz.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\siuhuz = "C:\\Users\\Admin\\siuhuz.exe /l"	siuhuz.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\	bf8a377a7a55fed45ce59af9fd5f3f8c82d7ac7814f5e90ffd28c6e383a5f9a1.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\siuhuz = "C:\\Users\\Admin\\siuhuz.exe /v"	siuhuz.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\siuhuz = "C:\\Users\\Admin\\siuhuz.exe /o"	siuhuz.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\siuhuz = "C:\\Users\\Admin\\siuhuz.exe /m"	siuhuz.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\siuhuz = "C:\\Users\\Admin\\siuhuz.exe /g"	siuhuz.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\siuhuz = "C:\\Users\\Admin\\siuhuz.exe /c"	siuhuz.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\	siuhuz.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\siuhuz = "C:\\Users\\Admin\\siuhuz.exe /p"	siuhuz.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\siuhuz = "C:\\Users\\Admin\\siuhuz.exe /x"	siuhuz.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\siuhuz = "C:\\Users\\Admin\\siuhuz.exe /w"	siuhuz.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\siuhuz = "C:\\Users\\Admin\\siuhuz.exe /z"	siuhuz.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:

bf8a377a7a55fed45ce59af9fd5f3f8c82d7ac7814f5e90ffd28c6e383a5f9a1.exesiuhuz.exe

pid	process
1504	bf8a377a7a55fed45ce59af9fd5f3f8c82d7ac7814f5e90ffd28c6e383a5f9a1.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe
1352	siuhuz.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

bf8a377a7a55fed45ce59af9fd5f3f8c82d7ac7814f5e90ffd28c6e383a5f9a1.exesiuhuz.exe

pid process

1504 bf8a377a7a55fed45ce59af9fd5f3f8c82d7ac7814f5e90ffd28c6e383a5f9a1.exe
1352 siuhuz.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

bf8a377a7a55fed45ce59af9fd5f3f8c82d7ac7814f5e90ffd28c6e383a5f9a1.exe

description	pid	process	target process
PID 1504 wrote to memory of 1352	1504	bf8a377a7a55fed45ce59af9fd5f3f8c82d7ac7814f5e90ffd28c6e383a5f9a1.exe	siuhuz.exe
PID 1504 wrote to memory of 1352	1504	bf8a377a7a55fed45ce59af9fd5f3f8c82d7ac7814f5e90ffd28c6e383a5f9a1.exe	siuhuz.exe
PID 1504 wrote to memory of 1352	1504	bf8a377a7a55fed45ce59af9fd5f3f8c82d7ac7814f5e90ffd28c6e383a5f9a1.exe	siuhuz.exe
PID 1504 wrote to memory of 1352	1504	bf8a377a7a55fed45ce59af9fd5f3f8c82d7ac7814f5e90ffd28c6e383a5f9a1.exe	siuhuz.exe

C:\Users\Admin\AppData\Local\Temp\bf8a377a7a55fed45ce59af9fd5f3f8c82d7ac7814f5e90ffd28c6e383a5f9a1.exe
"C:\Users\Admin\AppData\Local\Temp\bf8a377a7a55fed45ce59af9fd5f3f8c82d7ac7814f5e90ffd28c6e383a5f9a1.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:1504

C:\Users\Admin\siuhuz.exe
"C:\Users\Admin\siuhuz.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:1352

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\siuhuz.exe
Filesize
104KB

MD5
79bdc1c5255af9002be009144cfd1596

SHA1
3ed3e48f06252c180f1652fe50ec26d49c077cf2

SHA256
92f2f3b9ed34ccd2a89a9ca084a4f32ffc224b78b24a95f55310e8c0ab3efdb4

SHA512
4e638dcf6270cb0bedeebf6a45a83a0bc69114cd919c8eb940e44a302c68480ec671a44b8852bf45e3dc81b6140d54e0d75e54a7e3247f9da206df8e318c01ff

Download Submit
C:\Users\Admin\siuhuz.exe
Filesize
104KB

MD5
79bdc1c5255af9002be009144cfd1596

SHA1
3ed3e48f06252c180f1652fe50ec26d49c077cf2

SHA256
92f2f3b9ed34ccd2a89a9ca084a4f32ffc224b78b24a95f55310e8c0ab3efdb4

SHA512
4e638dcf6270cb0bedeebf6a45a83a0bc69114cd919c8eb940e44a302c68480ec671a44b8852bf45e3dc81b6140d54e0d75e54a7e3247f9da206df8e318c01ff

Download Submit
\Users\Admin\siuhuz.exe
Filesize
104KB

MD5
79bdc1c5255af9002be009144cfd1596

SHA1
3ed3e48f06252c180f1652fe50ec26d49c077cf2

SHA256
92f2f3b9ed34ccd2a89a9ca084a4f32ffc224b78b24a95f55310e8c0ab3efdb4

SHA512
4e638dcf6270cb0bedeebf6a45a83a0bc69114cd919c8eb940e44a302c68480ec671a44b8852bf45e3dc81b6140d54e0d75e54a7e3247f9da206df8e318c01ff

Download Submit
\Users\Admin\siuhuz.exe
Filesize
104KB

MD5
79bdc1c5255af9002be009144cfd1596

SHA1
3ed3e48f06252c180f1652fe50ec26d49c077cf2

SHA256
92f2f3b9ed34ccd2a89a9ca084a4f32ffc224b78b24a95f55310e8c0ab3efdb4

SHA512
4e638dcf6270cb0bedeebf6a45a83a0bc69114cd919c8eb940e44a302c68480ec671a44b8852bf45e3dc81b6140d54e0d75e54a7e3247f9da206df8e318c01ff

Download Submit
memory/1352-59-0x0000000000000000-mapping.dmp

Download
memory/1504-56-0x00000000768A1000-0x00000000768A3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads