c49a8a525df6a94c46f3b164edf93df432d786f82acc7801bbb5cbf51f0f3fca

General

Target

c49a8a525df6a94c46f3b164edf93df432d786f82acc7801bbb5cbf51f0f3fca.exe
Size

140KB
MD5

3457874a25fd377a91fe67b7dd546664
SHA1

86f2c7999384408b1ccdc2996716a639e0e18620
SHA256

c49a8a525df6a94c46f3b164edf93df432d786f82acc7801bbb5cbf51f0f3fca
SHA512

4c0fa3e4359ac38f0c58fc3b914df46f15ed29448ceb89171393a5772eec1f1e603135843b3a0a5cbc660da0bafdf76e3c422486e47710632be66522cd5f75c9
SSDEEP

3072:Qa8+c3vu3XuIcN6/xbccM3hDL8fyUha5fJiwt:Qai/uuIcNmL08dhaRJiW

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:

c49a8a525df6a94c46f3b164edf93df432d786f82acc7801bbb5cbf51f0f3fca.exemiayid.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	c49a8a525df6a94c46f3b164edf93df432d786f82acc7801bbb5cbf51f0f3fca.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	miayid.exe

Executes dropped EXE 1 IoCs

Processes:

miayid.exe

pid process

3940 miayid.exe

pid	process
3940	miayid.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:

c49a8a525df6a94c46f3b164edf93df432d786f82acc7801bbb5cbf51f0f3fca.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	c49a8a525df6a94c46f3b164edf93df432d786f82acc7801bbb5cbf51f0f3fca.exe

Adds Run key to start application 2 TTPs 51 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

miayid.exec49a8a525df6a94c46f3b164edf93df432d786f82acc7801bbb5cbf51f0f3fca.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /C"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /i"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /F"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /f"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /U"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /t"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /A"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /z"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /G"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /w"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /a"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /q"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /u"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /J"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /d"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /g"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /b"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /r"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /v"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /K"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /V"	miayid.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows\CurrentVersion\Run\	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /L"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /x"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /M"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /R"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /l"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /c"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /e"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /k"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /h"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /Q"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /n"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /a"	c49a8a525df6a94c46f3b164edf93df432d786f82acc7801bbb5cbf51f0f3fca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /o"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /p"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /y"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /Z"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /W"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /T"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /B"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /H"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /j"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /N"	miayid.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows\CurrentVersion\Run\	c49a8a525df6a94c46f3b164edf93df432d786f82acc7801bbb5cbf51f0f3fca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /s"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /P"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /E"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /S"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /X"	miayid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miayid = "C:\\Users\\Admin\\miayid.exe /Y"	miayid.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:

c49a8a525df6a94c46f3b164edf93df432d786f82acc7801bbb5cbf51f0f3fca.exemiayid.exe

pid	process
2816	c49a8a525df6a94c46f3b164edf93df432d786f82acc7801bbb5cbf51f0f3fca.exe
2816	c49a8a525df6a94c46f3b164edf93df432d786f82acc7801bbb5cbf51f0f3fca.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe
3940	miayid.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

c49a8a525df6a94c46f3b164edf93df432d786f82acc7801bbb5cbf51f0f3fca.exemiayid.exe

pid process

2816 c49a8a525df6a94c46f3b164edf93df432d786f82acc7801bbb5cbf51f0f3fca.exe
3940 miayid.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

c49a8a525df6a94c46f3b164edf93df432d786f82acc7801bbb5cbf51f0f3fca.exe

description	pid	process	target process
PID 2816 wrote to memory of 3940	2816	c49a8a525df6a94c46f3b164edf93df432d786f82acc7801bbb5cbf51f0f3fca.exe	miayid.exe
PID 2816 wrote to memory of 3940	2816	c49a8a525df6a94c46f3b164edf93df432d786f82acc7801bbb5cbf51f0f3fca.exe	miayid.exe
PID 2816 wrote to memory of 3940	2816	c49a8a525df6a94c46f3b164edf93df432d786f82acc7801bbb5cbf51f0f3fca.exe	miayid.exe

C:\Users\Admin\AppData\Local\Temp\c49a8a525df6a94c46f3b164edf93df432d786f82acc7801bbb5cbf51f0f3fca.exe
"C:\Users\Admin\AppData\Local\Temp\c49a8a525df6a94c46f3b164edf93df432d786f82acc7801bbb5cbf51f0f3fca.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:2816

C:\Users\Admin\miayid.exe
"C:\Users\Admin\miayid.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:3940

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\miayid.exe
Filesize
140KB

MD5
b4780f08e795a1121333132fc7a6a9f4

SHA1
13b09ec5b95d32a7b5ea63148e08263a740634bb

SHA256
c1adeaa273957bab9d26bb035c15e25c7e0a47830565bb414b623f3c86b00e09

SHA512
26bc4b847d8c96af2b92c3837d1240244e4f2b2778ae31cc7cdcda8b4f28f1b0488aae721dd29bc28c97b551e4bf07ae1b4fc7b171f29fc7e5a807f87fed7d41

Download Submit
C:\Users\Admin\miayid.exe
Filesize
140KB

MD5
b4780f08e795a1121333132fc7a6a9f4

SHA1
13b09ec5b95d32a7b5ea63148e08263a740634bb

SHA256
c1adeaa273957bab9d26bb035c15e25c7e0a47830565bb414b623f3c86b00e09

SHA512
26bc4b847d8c96af2b92c3837d1240244e4f2b2778ae31cc7cdcda8b4f28f1b0488aae721dd29bc28c97b551e4bf07ae1b4fc7b171f29fc7e5a807f87fed7d41

Download Submit
memory/3940-134-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads