Malware Analysis Report

2024-11-30 07:05

Sample ID 240601-h3h2wsed82
Target Vienna-EXEC.exe
SHA256 9ce36bf852b19244ba6a3aad4cd925caf7f2de79c9580e0ed856a23baaa59eba
Tags
agenttesla evasion keylogger persistence spyware stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

9ce36bf852b19244ba6a3aad4cd925caf7f2de79c9580e0ed856a23baaa59eba

Threat Level: Known bad

The file Vienna-EXEC.exe was found to be: Known bad.

Malicious Activity Summary

agenttesla evasion keylogger persistence spyware stealer trojan

AgentTesla

Looks for VirtualBox Guest Additions in registry

AgentTesla payload

Looks for VMWare Tools registry key

Checks BIOS information in registry

Checks computer location settings

Loads dropped DLL

Executes dropped EXE

Adds Run key to start application

Maps connected drives based on registry

Unsigned PE

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of SendNotifyMessage

Suspicious use of AdjustPrivilegeToken

Uses Task Scheduler COM API

Suspicious use of FindShellTrayWindow

Creates scheduled task(s)

Enumerates system info in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-01 07:15

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-01 07:15

Reported

2024-06-01 07:18

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Vienna-EXEC.exe"

Signatures

AgentTesla

keylogger trojan stealer spyware agenttesla

AgentTesla payload

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Looks for VirtualBox Guest Additions in registry

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions C:\Users\Admin\AppData\Roaming\Svhost.exe N/A
Key opened \REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions C:\Users\Admin\AppData\Roaming\Svhost.exe N/A
Key opened \REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions C:\Users\Admin\AppData\Local\Temp\Vienna-EXEC.exe N/A
Key opened \REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
Key opened \REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions C:\Users\Admin\AppData\Roaming\Svhost.exe N/A

Looks for VMWare Tools registry key

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SOFTWARE\VMware, Inc.\VMware Tools C:\Users\Admin\AppData\Local\Temp\Vienna-EXEC.exe N/A
Key opened \REGISTRY\MACHINE\SOFTWARE\VMware, Inc.\VMware Tools C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
Key opened \REGISTRY\MACHINE\SOFTWARE\VMware, Inc.\VMware Tools C:\Users\Admin\AppData\Roaming\Svhost.exe N/A
Key opened \REGISTRY\MACHINE\SOFTWARE\VMware, Inc.\VMware Tools C:\Users\Admin\AppData\Roaming\Svhost.exe N/A
Key opened \REGISTRY\MACHINE\SOFTWARE\VMware, Inc.\VMware Tools C:\Users\Admin\AppData\Roaming\Svhost.exe N/A

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Roaming\Svhost.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Roaming\Svhost.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Roaming\Svhost.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\Vienna-EXEC.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\Vienna-EXEC.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Roaming\Svhost.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Roaming\Svhost.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Roaming\Svhost.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
Key value queried \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\Vienna-EXEC.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\tt.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\tt.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Svhost = "C:\\Users\\Admin\\AppData\\Roaming\\Svhost.exe" C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A

Maps connected drives based on registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 C:\Users\Admin\AppData\Roaming\Svhost.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum C:\Users\Admin\AppData\Roaming\Svhost.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 C:\Users\Admin\AppData\Local\Temp\Vienna-EXEC.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 C:\Users\Admin\AppData\Roaming\Svhost.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum C:\Users\Admin\AppData\Roaming\Svhost.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum C:\Users\Admin\AppData\Local\Temp\Vienna-EXEC.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum C:\Users\Admin\AppData\Roaming\Svhost.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 C:\Users\Admin\AppData\Roaming\Svhost.exe N/A

Enumerates physical storage devices

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\System32\schtasks.exe N/A

Enumerates system info in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS C:\Users\Admin\AppData\Local\Temp\tt.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer C:\Users\Admin\AppData\Local\Temp\tt.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemVersion C:\Users\Admin\AppData\Local\Temp\tt.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Vienna-EXEC.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Vienna-EXEC.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Svhost.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\Svhost.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\Svhost.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\Svhost.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\tt.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\tt.exe N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\tt.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\tt.exe N/A

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\Vienna-EXEC.exe

"C:\Users\Admin\AppData\Local\Temp\Vienna-EXEC.exe"

C:\Users\Admin\AppData\Local\Temp\tt.exe

"C:\Users\Admin\AppData\Local\Temp\tt.exe"

C:\Users\Admin\AppData\Local\Temp\Svhost.exe

"C:\Users\Admin\AppData\Local\Temp\Svhost.exe"

C:\Windows\System32\schtasks.exe

"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Svhost" /tr "C:\Users\Admin\AppData\Roaming\Svhost.exe"

C:\Users\Admin\AppData\Roaming\Svhost.exe

C:\Users\Admin\AppData\Roaming\Svhost.exe

C:\Users\Admin\AppData\Roaming\Svhost.exe

C:\Users\Admin\AppData\Roaming\Svhost.exe

C:\Users\Admin\AppData\Roaming\Svhost.exe

C:\Users\Admin\AppData\Roaming\Svhost.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 71.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 25.24.18.2.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 203.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 blood-sticker.gl.at.ply.gg udp
US 147.185.221.19:65461 blood-sticker.gl.at.ply.gg tcp
US 8.8.8.8:53 19.221.185.147.in-addr.arpa udp
US 147.185.221.19:65461 blood-sticker.gl.at.ply.gg tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp

Files

memory/1344-0-0x00007FFE83653000-0x00007FFE83655000-memory.dmp

memory/1344-1-0x00000000003C0000-0x0000000000500000-memory.dmp

memory/1344-2-0x000000001B2C0000-0x000000001B3F0000-memory.dmp

memory/1344-3-0x00007FFE83650000-0x00007FFE84111000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tt.exe

MD5 bdd7e91ec5ebafbbfb0bd220b435d639
SHA1 5f9de84f3990584c208a961064154cf1a463a353
SHA256 14e81c1f6462c84909a63a34223f35b1a2b9f53a73f1e79c30c2b2a871556e6b
SHA512 216fbb914dc28fee7f473bbda2de9ec1fa8dcf637ddbfaaf22aec32a3ef454b3b0d8efb296c70bcfdeff0608cf8948bc8386ad8fd29da1c2f674a1bc3958e5ad

memory/4364-21-0x000000007488E000-0x000000007488F000-memory.dmp

memory/4364-22-0x0000000000830000-0x00000000008AE000-memory.dmp

memory/4364-23-0x00000000058F0000-0x0000000005E94000-memory.dmp

memory/4364-24-0x0000000005340000-0x00000000053D2000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\Svhost.exe

MD5 69a4f157bf0bc87f9bcddb65ef00a257
SHA1 66eabd44f105875d0ef922b82376e65abdbb9a21
SHA256 8e04e32d8aeeabf2aee325579ac865958f24892c5bee6b81f8eb98ee6cfcbe0b
SHA512 a85cb7fbd7d6ac1e4806cb7ff03b93552d494de9fcf36f8311ff69fd475bf3de219280a8387687c31dd5f861e8eab8bd7ec5c759f37c93034f37db81c92405be

memory/1056-36-0x00007FFE83653000-0x00007FFE83655000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\Guna.UI2.dll

MD5 c19e9e6a4bc1b668d19505a0437e7f7e
SHA1 73be712aef4baa6e9dabfc237b5c039f62a847fa
SHA256 9ac8b65e5c13292a8e564187c1e7446adc4230228b669383bd7b07035ab99a82
SHA512 b6cd0af436459f35a97db2d928120c53d3691533b01e4f0e8b382f2bd81d9a9a2c57e5e2aa6ade9d6a1746d5c4b2ef6c88d3a0cf519424b34445d0d30aab61de

memory/1056-42-0x0000000001200000-0x0000000001206000-memory.dmp

memory/1056-41-0x0000000000A10000-0x0000000000A38000-memory.dmp

memory/1056-43-0x00007FFE83650000-0x00007FFE84111000-memory.dmp

memory/4364-40-0x0000000005600000-0x0000000005814000-memory.dmp

memory/4364-44-0x0000000005210000-0x0000000005220000-memory.dmp

memory/4364-45-0x0000000005850000-0x000000000585A000-memory.dmp

memory/1344-46-0x00007FFE83650000-0x00007FFE84111000-memory.dmp

memory/4364-52-0x000000007488E000-0x000000007488F000-memory.dmp

memory/1056-54-0x000000001C390000-0x000000001C39A000-memory.dmp

memory/1056-55-0x00007FFE83653000-0x00007FFE83655000-memory.dmp

memory/1056-56-0x00007FFE83650000-0x00007FFE84111000-memory.dmp

memory/4364-57-0x0000000005210000-0x0000000005220000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\Svhost.exe.log

MD5 f91be20cbf7fa6f403e352d73b196c79
SHA1 2b27b75b7b17d7012ed7655649d644e7d105a548
SHA256 8d520c20017c84f0ddd5bdf341c534a9f9ec9e2b6556eaeb1df86a29cf62e0a3
SHA512 442ea828390f53956f3a6bcad83dc7b3ada6a01b6319a322e38a523dffaadb01649663c8e33ad898c5a8bdcf1a0ef9805f29f2b61da970a88d7176ee1ae300e6