0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac

General

Target

0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe
Size

144KB
MD5

2d477db9ec804ce5010a38623e863567
SHA1

0ef07531fbf13a1c49d77d60af533eaf76b58bf8
SHA256

0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac
SHA512

c00d5d77cbb4d326c1bf1d2a452c0392f98180a3b8752a5a376ceeafdc75783de3c98b797d920354f660c5e36194ee597a9a38705f1f0425e641d93918642e77
SSDEEP

3072:aul0tiAvmqm7H/NrJpQvnPfUbHiMU6bPDb:t0tiKmP7lrD+nHUbHQ6L

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:

0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exehuiovi.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	huiovi.exe

Executes dropped EXE 2 IoCs

Processes:

huiovi.exehuiovi.exe

pid process

1824 huiovi.exe
4728 huiovi.exe

pid	process
1824	huiovi.exe
4728	huiovi.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:

0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe

Adds Run key to start application 2 TTPs 28 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

huiovi.exe0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huiovi = "C:\\Users\\Admin\\huiovi.exe /x"	huiovi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huiovi = "C:\\Users\\Admin\\huiovi.exe /t"	huiovi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huiovi = "C:\\Users\\Admin\\huiovi.exe /v"	huiovi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huiovi = "C:\\Users\\Admin\\huiovi.exe /g"	huiovi.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\	0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huiovi = "C:\\Users\\Admin\\huiovi.exe /a"	huiovi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huiovi = "C:\\Users\\Admin\\huiovi.exe /z"	huiovi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huiovi = "C:\\Users\\Admin\\huiovi.exe /q"	huiovi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huiovi = "C:\\Users\\Admin\\huiovi.exe /l"	huiovi.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\	huiovi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huiovi = "C:\\Users\\Admin\\huiovi.exe /u"	huiovi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huiovi = "C:\\Users\\Admin\\huiovi.exe /r"	huiovi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huiovi = "C:\\Users\\Admin\\huiovi.exe /w"	huiovi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huiovi = "C:\\Users\\Admin\\huiovi.exe /s"	0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huiovi = "C:\\Users\\Admin\\huiovi.exe /e"	huiovi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huiovi = "C:\\Users\\Admin\\huiovi.exe /y"	huiovi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huiovi = "C:\\Users\\Admin\\huiovi.exe /f"	huiovi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huiovi = "C:\\Users\\Admin\\huiovi.exe /o"	huiovi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huiovi = "C:\\Users\\Admin\\huiovi.exe /j"	huiovi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huiovi = "C:\\Users\\Admin\\huiovi.exe /i"	huiovi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huiovi = "C:\\Users\\Admin\\huiovi.exe /s"	huiovi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huiovi = "C:\\Users\\Admin\\huiovi.exe /n"	huiovi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huiovi = "C:\\Users\\Admin\\huiovi.exe /b"	huiovi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huiovi = "C:\\Users\\Admin\\huiovi.exe /h"	huiovi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huiovi = "C:\\Users\\Admin\\huiovi.exe /k"	huiovi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huiovi = "C:\\Users\\Admin\\huiovi.exe /p"	huiovi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huiovi = "C:\\Users\\Admin\\huiovi.exe /c"	huiovi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huiovi = "C:\\Users\\Admin\\huiovi.exe /m"	huiovi.exe

Maps connected drives based on registry 3 TTPs 4 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exehuiovi.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	huiovi.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	huiovi.exe

Drops autorun.inf file 1 TTPs 1 IoCs
Malware can abuse Windows Autorun to spread further via attached volumes.

Replication Through Removable Media
T1091

Processes:

huiovi.exe

description ioc process

File opened for modification C:\Users\Admin\c\autorun.inf huiovi.exe

description	ioc	process
File opened for modification	C:\Users\Admin\c\autorun.inf	huiovi.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exehuiovi.exe

description	pid	process	target process
PID 4848 set thread context of 4904	4848	0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe	0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe
PID 1824 set thread context of 4728	1824	huiovi.exe	huiovi.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:

0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exehuiovi.exe

pid	process
4904	0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe
4904	0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe
4728	huiovi.exe

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exehuiovi.exehuiovi.exe

pid	process
4848	0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe
4904	0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe
1824	huiovi.exe
4728	huiovi.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exehuiovi.exe

description	pid	process	target process
PID 4848 wrote to memory of 4904	4848	0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe	0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe
PID 4848 wrote to memory of 4904	4848	0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe	0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe
PID 4848 wrote to memory of 4904	4848	0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe	0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe
PID 4848 wrote to memory of 4904	4848	0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe	0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe
PID 4848 wrote to memory of 4904	4848	0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe	0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe
PID 4848 wrote to memory of 4904	4848	0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe	0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe
PID 4848 wrote to memory of 4904	4848	0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe	0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe
PID 4848 wrote to memory of 4904	4848	0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe	0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe
PID 4848 wrote to memory of 4904	4848	0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe	0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe
PID 4904 wrote to memory of 1824	4904	0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe	huiovi.exe
PID 4904 wrote to memory of 1824	4904	0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe	huiovi.exe
PID 4904 wrote to memory of 1824	4904	0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe	huiovi.exe
PID 1824 wrote to memory of 4728	1824	huiovi.exe	huiovi.exe
PID 1824 wrote to memory of 4728	1824	huiovi.exe	huiovi.exe
PID 1824 wrote to memory of 4728	1824	huiovi.exe	huiovi.exe
PID 1824 wrote to memory of 4728	1824	huiovi.exe	huiovi.exe
PID 1824 wrote to memory of 4728	1824	huiovi.exe	huiovi.exe
PID 1824 wrote to memory of 4728	1824	huiovi.exe	huiovi.exe
PID 1824 wrote to memory of 4728	1824	huiovi.exe	huiovi.exe
PID 1824 wrote to memory of 4728	1824	huiovi.exe	huiovi.exe
PID 1824 wrote to memory of 4728	1824	huiovi.exe	huiovi.exe

C:\Users\Admin\AppData\Local\Temp\0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe
"C:\Users\Admin\AppData\Local\Temp\0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4848

C:\Users\Admin\AppData\Local\Temp\0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac.exe
74
2⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4904

C:\Users\Admin\huiovi.exe
"C:\Users\Admin\huiovi.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1824

C:\Users\Admin\huiovi.exe
74
4⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Maps connected drives based on registry
- Drops autorun.inf file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:4728

Network

MITRE ATT&CK Enterprise v6

Initial Access

Replication Through Removable Media

1

T1091

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

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

Lateral Movement

Replication Through Removable Media

1

T1091

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\huiovi.exe

Filesize
144KB

MD5
2d477db9ec804ce5010a38623e863567

SHA1
0ef07531fbf13a1c49d77d60af533eaf76b58bf8

SHA256
0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac

SHA512
c00d5d77cbb4d326c1bf1d2a452c0392f98180a3b8752a5a376ceeafdc75783de3c98b797d920354f660c5e36194ee597a9a38705f1f0425e641d93918642e77

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

Filesize
144KB

MD5
2d477db9ec804ce5010a38623e863567

SHA1
0ef07531fbf13a1c49d77d60af533eaf76b58bf8

SHA256
0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac

SHA512
c00d5d77cbb4d326c1bf1d2a452c0392f98180a3b8752a5a376ceeafdc75783de3c98b797d920354f660c5e36194ee597a9a38705f1f0425e641d93918642e77

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

Filesize
144KB

MD5
2d477db9ec804ce5010a38623e863567

SHA1
0ef07531fbf13a1c49d77d60af533eaf76b58bf8

SHA256
0abaa3acf9e8b0cdcc7e85f4d8ccf061bce5edea8350250c5faf7d89478820ac

SHA512
c00d5d77cbb4d326c1bf1d2a452c0392f98180a3b8752a5a376ceeafdc75783de3c98b797d920354f660c5e36194ee597a9a38705f1f0425e641d93918642e77

Download Submit
memory/1824-141-0x0000000000000000-mapping.dmp

Download
memory/4728-147-0x0000000000000000-mapping.dmp

Download
memory/4728-154-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/4728-155-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/4904-134-0x0000000000000000-mapping.dmp

Download
memory/4904-135-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/4904-137-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/4904-140-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/4904-146-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads