1bf6d14c4b5f59aa30882f4aa25e9e9d703dac905a785fe020ff667600e5fc97

Analysis

max time kernel
315s
max time network
342s
platform
windows10_x64
resource
win10v20201028
submitted
18-11-2020 15:58

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General

Target

infected dot net installer.exe

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 3 IoCs

Processes:

._cache_infected dot net installer.exeSynaptics.exeSetup.exe

pid process

228 ._cache_infected dot net installer.exe
2352 Synaptics.exe
396 Setup.exe

pid	process
228	._cache_infected dot net installer.exe
2352	Synaptics.exe
396	Setup.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:

infected dot net installer.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Control Panel\International\Geo\Nation	infected dot net installer.exe

Loads dropped DLL 5 IoCs

Processes:

Setup.exe

pid process

396 Setup.exe
396 Setup.exe
396 Setup.exe
396 Setup.exe
396 Setup.exe

pid	process
396	Setup.exe
396	Setup.exe
396	Setup.exe
396	Setup.exe
396	Setup.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

infected dot net installer.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Synaptics Pointing Device Driver = "C:\\ProgramData\\Synaptics\\Synaptics.exe"	infected dot net installer.exe

Drops file in Windows directory 1 IoCs

Processes:

svchost.exe

description ioc process

File opened for modification C:\Windows\Debug\ESE.TXT svchost.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	ioc	process
File opened for modification	C:\Windows\Debug\ESE.TXT	svchost.exe

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

Setup.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	Setup.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	Setup.exe

Modifies data under HKEY_USERS 4 IoCs

Processes:

svchost.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\OnDemandInterfaceCache	svchost.exe
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\windows\CurrentVersion\Internet Settings\Connections	svchost.exe
Key created	\REGISTRY\USER\S-1-5-19\Software\Classes\Local Settings\MuiCache\16\52C64B7E	svchost.exe
Key created	\REGISTRY\USER\S-1-5-19\Software\Classes\Local Settings\MuiCache	svchost.exe

Modifies registry class 1 IoCs

Processes:

infected dot net installer.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance	infected dot net installer.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

Setup.exe

pid process

396 Setup.exe
396 Setup.exe
396 Setup.exe
396 Setup.exe
396 Setup.exe
396 Setup.exe
396 Setup.exe
396 Setup.exe

pid	process
396	Setup.exe
396	Setup.exe
396	Setup.exe
396	Setup.exe
396	Setup.exe
396	Setup.exe
396	Setup.exe
396	Setup.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

infected dot net installer.exe._cache_infected dot net installer.exe

description	pid	process	target process
PID 932 wrote to memory of 228	932	infected dot net installer.exe	._cache_infected dot net installer.exe
PID 932 wrote to memory of 228	932	infected dot net installer.exe	._cache_infected dot net installer.exe
PID 932 wrote to memory of 228	932	infected dot net installer.exe	._cache_infected dot net installer.exe
PID 932 wrote to memory of 2352	932	infected dot net installer.exe	Synaptics.exe
PID 932 wrote to memory of 2352	932	infected dot net installer.exe	Synaptics.exe
PID 932 wrote to memory of 2352	932	infected dot net installer.exe	Synaptics.exe
PID 228 wrote to memory of 396	228	._cache_infected dot net installer.exe	Setup.exe
PID 228 wrote to memory of 396	228	._cache_infected dot net installer.exe	Setup.exe
PID 228 wrote to memory of 396	228	._cache_infected dot net installer.exe	Setup.exe

C:\Users\Admin\AppData\Local\Temp\infected dot net installer.exe
"C:\Users\Admin\AppData\Local\Temp\infected dot net installer.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:932

C:\Users\Admin\AppData\Local\Temp\._cache_infected dot net installer.exe
"C:\Users\Admin\AppData\Local\Temp\._cache_infected dot net installer.exe"
2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:228

C:\8d33db8c509f4aef3f5b14b58758\Setup.exe
C:\8d33db8c509f4aef3f5b14b58758\\Setup.exe /x86 /x64 /web
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:396

C:\ProgramData\Synaptics\Synaptics.exe
"C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
2⤵
- Executes dropped EXE
PID:2352

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -s BITS
1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
PID:1512

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\8d33db8c509f4aef3f5b14b58758\1025\LocalizedData.xml

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C:\8d33db8c509f4aef3f5b14b58758\1028\LocalizedData.xml

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C:\8d33db8c509f4aef3f5b14b58758\1029\LocalizedData.xml

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C:\8d33db8c509f4aef3f5b14b58758\1030\LocalizedData.xml

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C:\8d33db8c509f4aef3f5b14b58758\1031\LocalizedData.xml

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C:\8d33db8c509f4aef3f5b14b58758\1032\LocalizedData.xml

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C:\8d33db8c509f4aef3f5b14b58758\1033\LocalizedData.xml

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C:\8d33db8c509f4aef3f5b14b58758\1033\SetupResources.dll

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C:\8d33db8c509f4aef3f5b14b58758\1035\LocalizedData.xml

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C:\8d33db8c509f4aef3f5b14b58758\1036\LocalizedData.xml

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C:\8d33db8c509f4aef3f5b14b58758\1037\LocalizedData.xml

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C:\8d33db8c509f4aef3f5b14b58758\1038\LocalizedData.xml

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C:\8d33db8c509f4aef3f5b14b58758\1040\LocalizedData.xml

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C:\8d33db8c509f4aef3f5b14b58758\1041\LocalizedData.xml

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C:\8d33db8c509f4aef3f5b14b58758\1042\LocalizedData.xml

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C:\8d33db8c509f4aef3f5b14b58758\1043\LocalizedData.xml

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C:\8d33db8c509f4aef3f5b14b58758\1044\LocalizedData.xml

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C:\8d33db8c509f4aef3f5b14b58758\1045\LocalizedData.xml

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C:\8d33db8c509f4aef3f5b14b58758\1046\LocalizedData.xml

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C:\8d33db8c509f4aef3f5b14b58758\1049\LocalizedData.xml

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C:\8d33db8c509f4aef3f5b14b58758\1053\LocalizedData.xml

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C:\8d33db8c509f4aef3f5b14b58758\1055\LocalizedData.xml

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C:\8d33db8c509f4aef3f5b14b58758\2052\LocalizedData.xml

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C:\8d33db8c509f4aef3f5b14b58758\2070\LocalizedData.xml

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C:\8d33db8c509f4aef3f5b14b58758\3082\LocalizedData.xml

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C:\8d33db8c509f4aef3f5b14b58758\DHTMLHeader.html

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C:\8d33db8c509f4aef3f5b14b58758\ParameterInfo.xml

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C:\8d33db8c509f4aef3f5b14b58758\Setup.exe

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C:\8d33db8c509f4aef3f5b14b58758\Setup.exe

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C:\8d33db8c509f4aef3f5b14b58758\SetupEngine.dll

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C:\8d33db8c509f4aef3f5b14b58758\SetupUi.dll

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C:\8d33db8c509f4aef3f5b14b58758\SetupUi.xsd

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C:\8d33db8c509f4aef3f5b14b58758\SplashScreen.bmp

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C:\8d33db8c509f4aef3f5b14b58758\Strings.xml

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C:\8d33db8c509f4aef3f5b14b58758\UiInfo.xml

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C:\8d33db8c509f4aef3f5b14b58758\graphics\print.ico

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C:\8d33db8c509f4aef3f5b14b58758\graphics\save.ico

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C:\8d33db8c509f4aef3f5b14b58758\graphics\setup.ico

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C:\8d33db8c509f4aef3f5b14b58758\graphics\warn.ico

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C:\8d33db8c509f4aef3f5b14b58758\sqmapi.dll

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C:\ProgramData\Synaptics\Synaptics.exe

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C:\ProgramData\Synaptics\Synaptics.exe

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C:\Users\Admin\AppData\Local\Temp\._cache_infected dot net installer.exe

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C:\Users\Admin\AppData\Local\Temp\._cache_infected dot net installer.exe

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\8d33db8c509f4aef3f5b14b58758\1033\SetupResources.dll

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\8d33db8c509f4aef3f5b14b58758\1033\SetupResources.dll

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\8d33db8c509f4aef3f5b14b58758\SetupEngine.dll

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\8d33db8c509f4aef3f5b14b58758\SetupUi.dll

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\8d33db8c509f4aef3f5b14b58758\sqmapi.dll

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memory/228-11-0x0000000000000000-mapping.dmp

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memory/396-57-0x0000000002A70000-0x0000000002A72000-memory.dmp

Filesize
8KB

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memory/396-17-0x0000000000000000-mapping.dmp

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memory/2352-14-0x0000000000000000-mapping.dmp

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Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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