a7bd94a54b75f6d3e8a0cb81140da05b51eebf65e59bd82fec7c4c55fe20c503

General

Target

a7bd94a54b75f6d3e8a0cb81140da05b51eebf65e59bd82fec7c4c55fe20c503.exe
Size

168KB
MD5

56c26804bd92f62fb5efbe7e36be899a
SHA1

15a51e7a08d9041b38679f2ea9dd1d1c75310a76
SHA256

a7bd94a54b75f6d3e8a0cb81140da05b51eebf65e59bd82fec7c4c55fe20c503
SHA512

3038259e094dce5e2ba0ea784fdb417a3c96f422daa99ed751bbfdd863eecdd23c8fed24da28ca7a2ae13da8cd9d7d9bfbbdba615d3434d15484724475554496
SSDEEP

3072:ShGs8/p+Y7SIsyvTlo/11hJl2czGRqxZdxxW974+:ShGD/p+YiQlS1NJG6/xI

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:

a7bd94a54b75f6d3e8a0cb81140da05b51eebf65e59bd82fec7c4c55fe20c503.exeyoiwu.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	a7bd94a54b75f6d3e8a0cb81140da05b51eebf65e59bd82fec7c4c55fe20c503.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	yoiwu.exe

Executes dropped EXE 1 IoCs

Processes:

yoiwu.exe

pid process

568 yoiwu.exe

pid	process
568	yoiwu.exe

Loads dropped DLL 2 IoCs

Processes:

a7bd94a54b75f6d3e8a0cb81140da05b51eebf65e59bd82fec7c4c55fe20c503.exe

pid	process
1668	a7bd94a54b75f6d3e8a0cb81140da05b51eebf65e59bd82fec7c4c55fe20c503.exe
1668	a7bd94a54b75f6d3e8a0cb81140da05b51eebf65e59bd82fec7c4c55fe20c503.exe

Adds Run key to start application 2 TTPs 48 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

yoiwu.exea7bd94a54b75f6d3e8a0cb81140da05b51eebf65e59bd82fec7c4c55fe20c503.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /k"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /K"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /q"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /S"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /z"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /w"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /R"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /c"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /C"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /J"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /p"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /A"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /x"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /g"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /Q"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /T"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /O"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /m"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /s"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /o"	yoiwu.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\	a7bd94a54b75f6d3e8a0cb81140da05b51eebf65e59bd82fec7c4c55fe20c503.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /C"	a7bd94a54b75f6d3e8a0cb81140da05b51eebf65e59bd82fec7c4c55fe20c503.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /b"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /n"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /I"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /V"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /E"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /H"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /L"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /u"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /r"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /Y"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /t"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /j"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /N"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /f"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /U"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /y"	yoiwu.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /d"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /Z"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /e"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /l"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /F"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /P"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /B"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /i"	yoiwu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoiwu = "C:\\Users\\Admin\\yoiwu.exe /G"	yoiwu.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:

a7bd94a54b75f6d3e8a0cb81140da05b51eebf65e59bd82fec7c4c55fe20c503.exeyoiwu.exe

pid	process
1668	a7bd94a54b75f6d3e8a0cb81140da05b51eebf65e59bd82fec7c4c55fe20c503.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe
568	yoiwu.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

a7bd94a54b75f6d3e8a0cb81140da05b51eebf65e59bd82fec7c4c55fe20c503.exeyoiwu.exe

pid process

1668 a7bd94a54b75f6d3e8a0cb81140da05b51eebf65e59bd82fec7c4c55fe20c503.exe
568 yoiwu.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

a7bd94a54b75f6d3e8a0cb81140da05b51eebf65e59bd82fec7c4c55fe20c503.exe

description	pid	process	target process
PID 1668 wrote to memory of 568	1668	a7bd94a54b75f6d3e8a0cb81140da05b51eebf65e59bd82fec7c4c55fe20c503.exe	yoiwu.exe
PID 1668 wrote to memory of 568	1668	a7bd94a54b75f6d3e8a0cb81140da05b51eebf65e59bd82fec7c4c55fe20c503.exe	yoiwu.exe
PID 1668 wrote to memory of 568	1668	a7bd94a54b75f6d3e8a0cb81140da05b51eebf65e59bd82fec7c4c55fe20c503.exe	yoiwu.exe
PID 1668 wrote to memory of 568	1668	a7bd94a54b75f6d3e8a0cb81140da05b51eebf65e59bd82fec7c4c55fe20c503.exe	yoiwu.exe

C:\Users\Admin\AppData\Local\Temp\a7bd94a54b75f6d3e8a0cb81140da05b51eebf65e59bd82fec7c4c55fe20c503.exe
"C:\Users\Admin\AppData\Local\Temp\a7bd94a54b75f6d3e8a0cb81140da05b51eebf65e59bd82fec7c4c55fe20c503.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:1668

C:\Users\Admin\yoiwu.exe
"C:\Users\Admin\yoiwu.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:568

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\yoiwu.exe
Filesize
168KB

MD5
c2c1320d6913938da7be1a0155fcb87c

SHA1
461f70712bf257a4d2bb1220f28a7776c41e716a

SHA256
d55e43c0a3e548b0e9c341597d644886e1edcc73a8cf08222beb806312f76ed5

SHA512
f29993ed6b4e1ee3c781e610fd879dec3991a5ce4315e0c2e5e9abbf5ddd647f81a51ec4dd8dfb70d4ed6bc980b3a2780c27b9728a1a58f4c23f40b88d19d678

Download Submit
C:\Users\Admin\yoiwu.exe
Filesize
168KB

MD5
c2c1320d6913938da7be1a0155fcb87c

SHA1
461f70712bf257a4d2bb1220f28a7776c41e716a

SHA256
d55e43c0a3e548b0e9c341597d644886e1edcc73a8cf08222beb806312f76ed5

SHA512
f29993ed6b4e1ee3c781e610fd879dec3991a5ce4315e0c2e5e9abbf5ddd647f81a51ec4dd8dfb70d4ed6bc980b3a2780c27b9728a1a58f4c23f40b88d19d678

Download Submit
\Users\Admin\yoiwu.exe
Filesize
168KB

MD5
c2c1320d6913938da7be1a0155fcb87c

SHA1
461f70712bf257a4d2bb1220f28a7776c41e716a

SHA256
d55e43c0a3e548b0e9c341597d644886e1edcc73a8cf08222beb806312f76ed5

SHA512
f29993ed6b4e1ee3c781e610fd879dec3991a5ce4315e0c2e5e9abbf5ddd647f81a51ec4dd8dfb70d4ed6bc980b3a2780c27b9728a1a58f4c23f40b88d19d678

Download Submit
\Users\Admin\yoiwu.exe
Filesize
168KB

MD5
c2c1320d6913938da7be1a0155fcb87c

SHA1
461f70712bf257a4d2bb1220f28a7776c41e716a

SHA256
d55e43c0a3e548b0e9c341597d644886e1edcc73a8cf08222beb806312f76ed5

SHA512
f29993ed6b4e1ee3c781e610fd879dec3991a5ce4315e0c2e5e9abbf5ddd647f81a51ec4dd8dfb70d4ed6bc980b3a2780c27b9728a1a58f4c23f40b88d19d678

Download Submit
memory/568-59-0x0000000000000000-mapping.dmp

Download
memory/1668-56-0x0000000075C81000-0x0000000075C83000-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