dcda67858cd9303dd32c0c979030dc0025a457e8b52f8b1c76f3c99943b9b48f

General

Target

dcda67858cd9303dd32c0c979030dc0025a457e8b52f8b1c76f3c99943b9b48f.exe
Size

156KB
MD5

15c6913de4b47966ef0ed7a20dc91fcf
SHA1

703be70c224f7b05b215d436d844009172765fc3
SHA256

dcda67858cd9303dd32c0c979030dc0025a457e8b52f8b1c76f3c99943b9b48f
SHA512

6cad428571d9a839cd0c85c7fd544aa730f7f08d2ef9c964cf9ee9a5043b690f8e902cf7290771e024a5803de407c1db75cabbded671a8a7309cc9d5859da298
SSDEEP

3072:gLySQYWrO0VctCPmJIHE+gRyRSIuznLstk4oQZiEap2Y:TYGPctCrEaRQLpWkpN

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:

dcda67858cd9303dd32c0c979030dc0025a457e8b52f8b1c76f3c99943b9b48f.exeyaioze.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	dcda67858cd9303dd32c0c979030dc0025a457e8b52f8b1c76f3c99943b9b48f.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	yaioze.exe

Executes dropped EXE 1 IoCs

Processes:

yaioze.exe

pid process

5028 yaioze.exe

pid	process
5028	yaioze.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

dcda67858cd9303dd32c0c979030dc0025a457e8b52f8b1c76f3c99943b9b48f.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	dcda67858cd9303dd32c0c979030dc0025a457e8b52f8b1c76f3c99943b9b48f.exe

Adds Run key to start application 2 TTPs 54 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

yaioze.exedcda67858cd9303dd32c0c979030dc0025a457e8b52f8b1c76f3c99943b9b48f.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /l"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /L"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /Z"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /x"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /S"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /i"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /d"	yaioze.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run\	dcda67858cd9303dd32c0c979030dc0025a457e8b52f8b1c76f3c99943b9b48f.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /U"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /T"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /e"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /K"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /F"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /o"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /D"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /q"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /h"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /a"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /E"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /b"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /H"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /u"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /t"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /N"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /B"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /V"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /J"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /M"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /f"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /w"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /X"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /k"	yaioze.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run\	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /O"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /A"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /s"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /G"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /Y"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /p"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /m"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /R"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /I"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /r"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /n"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /j"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /n"	dcda67858cd9303dd32c0c979030dc0025a457e8b52f8b1c76f3c99943b9b48f.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /c"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /y"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /C"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /Q"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /v"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /g"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /P"	yaioze.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yaioze = "C:\\Users\\Admin\\yaioze.exe /z"	yaioze.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:

dcda67858cd9303dd32c0c979030dc0025a457e8b52f8b1c76f3c99943b9b48f.exeyaioze.exe

pid	process
4064	dcda67858cd9303dd32c0c979030dc0025a457e8b52f8b1c76f3c99943b9b48f.exe
4064	dcda67858cd9303dd32c0c979030dc0025a457e8b52f8b1c76f3c99943b9b48f.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe
5028	yaioze.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

dcda67858cd9303dd32c0c979030dc0025a457e8b52f8b1c76f3c99943b9b48f.exeyaioze.exe

pid process

4064 dcda67858cd9303dd32c0c979030dc0025a457e8b52f8b1c76f3c99943b9b48f.exe
5028 yaioze.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

dcda67858cd9303dd32c0c979030dc0025a457e8b52f8b1c76f3c99943b9b48f.exe

description	pid	process	target process
PID 4064 wrote to memory of 5028	4064	dcda67858cd9303dd32c0c979030dc0025a457e8b52f8b1c76f3c99943b9b48f.exe	yaioze.exe
PID 4064 wrote to memory of 5028	4064	dcda67858cd9303dd32c0c979030dc0025a457e8b52f8b1c76f3c99943b9b48f.exe	yaioze.exe
PID 4064 wrote to memory of 5028	4064	dcda67858cd9303dd32c0c979030dc0025a457e8b52f8b1c76f3c99943b9b48f.exe	yaioze.exe

C:\Users\Admin\AppData\Local\Temp\dcda67858cd9303dd32c0c979030dc0025a457e8b52f8b1c76f3c99943b9b48f.exe
"C:\Users\Admin\AppData\Local\Temp\dcda67858cd9303dd32c0c979030dc0025a457e8b52f8b1c76f3c99943b9b48f.exe"
1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4064

C:\Users\Admin\yaioze.exe
"C:\Users\Admin\yaioze.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:5028

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\yaioze.exe

Filesize
156KB

MD5
1e6fc8c13206980b5c6e6f1ad538e4d8

SHA1
47c68b12142e323125233eee6b232a578a68661f

SHA256
0c7926d8a66c5cb3a71c831a99924a27196ebfd7132b2e4c49a54891b6206308

SHA512
6c283361955a824340268060aa01a430b5015f366d216d48b8715e9df28e2dd5215e5419ba1502eebf889873d6c24cae3c17388362b30d893063561f72851d84

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

Filesize
156KB

MD5
1e6fc8c13206980b5c6e6f1ad538e4d8

SHA1
47c68b12142e323125233eee6b232a578a68661f

SHA256
0c7926d8a66c5cb3a71c831a99924a27196ebfd7132b2e4c49a54891b6206308

SHA512
6c283361955a824340268060aa01a430b5015f366d216d48b8715e9df28e2dd5215e5419ba1502eebf889873d6c24cae3c17388362b30d893063561f72851d84

Download Submit
memory/5028-134-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads