Analysis
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max time kernel
149s -
max time network
131s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
22-05-2024 19:44
Static task
static1
Behavioral task
behavioral1
Sample
image004.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
image004.exe
Resource
win10v2004-20240508-en
General
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Target
image004.exe
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Size
750KB
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MD5
af7969ad9402eed625d7062c487c6f66
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SHA1
eb7d2554b1a38da763b94177f6272a86c35b1d0d
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SHA256
c99ab5fd84fd8e4eb94bc9d521920481effd92e79cd383f8ee07c1457f8c3fc8
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SHA512
20e1cae871ab11bd0c23ba040a1d0b377d6785b006d8b5de6d7184a1fd0f8699b9993d1f0988a1175516a0545df3f245d119757032d055f0a1e6a80cc7728878
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SSDEEP
12288:5zvxn6yWn7fcpVZlu/6uHl8XdpxC8wmkSgIYBo9u9xm5TdgWgegPgy/g52w8BLvm:Zxn698VVYl4PCVogIY0Qm9dg0gIyYsp6
Malware Config
Extracted
Protocol: smtp- Host:
mail.bonnyriggdentalsurgery.com.au - Port:
587 - Username:
[email protected] - Password:
Sages101*
Extracted
agenttesla
Protocol: smtp- Host:
mail.bonnyriggdentalsurgery.com.au - Port:
587 - Username:
[email protected] - Password:
Sages101* - Email To:
[email protected]
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
Processes:
powershell.exepowershell.exepid process 4268 powershell.exe 4896 powershell.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
image004.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation image004.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
image004.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\avdfUcC = "C:\\Users\\Admin\\AppData\\Roaming\\avdfUcC\\avdfUcC.exe" image004.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 32 ip-api.com -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
image004.exepowershell.exepowershell.exepid process 2008 image004.exe 2008 image004.exe 2008 image004.exe 4896 powershell.exe 4268 powershell.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 4896 powershell.exe 4268 powershell.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe 2008 image004.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
image004.exepowershell.exepowershell.exedescription pid process Token: SeDebugPrivilege 2008 image004.exe Token: SeDebugPrivilege 4896 powershell.exe Token: SeDebugPrivilege 4268 powershell.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
image004.exedescription pid process target process PID 2008 wrote to memory of 4896 2008 image004.exe powershell.exe PID 2008 wrote to memory of 4896 2008 image004.exe powershell.exe PID 2008 wrote to memory of 4896 2008 image004.exe powershell.exe PID 2008 wrote to memory of 4268 2008 image004.exe powershell.exe PID 2008 wrote to memory of 4268 2008 image004.exe powershell.exe PID 2008 wrote to memory of 4268 2008 image004.exe powershell.exe PID 2008 wrote to memory of 4884 2008 image004.exe schtasks.exe PID 2008 wrote to memory of 4884 2008 image004.exe schtasks.exe PID 2008 wrote to memory of 4884 2008 image004.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\image004.exe"C:\Users\Admin\AppData\Local\Temp\image004.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2008 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\image004.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4896 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\WWDyYT.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4268 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\WWDyYT" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8F4F.tmp"2⤵
- Creates scheduled task(s)
PID:4884
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
18KB
MD5652f789b51c998186ff39781578f7f6f
SHA1756f337d026779d395dbffbbd1bb407cb61a4489
SHA256b579db2a42813a535047e8b73b51dade39ba3040a63539ae77256ff0e2ce3836
SHA5124125aaec442381f9307b8b51166b746cdea35ca9d799f80e044f8a323024ddc2d99655059532aae5be2e33fe45c35bbeb552bc902492f0890da34171f2bf7987
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD518f66fc12410e368a6a546d471198be7
SHA1b518b17cdb9b114eb257ec7501b64e5278e95997
SHA256b184065645c9115af3e78b6b83d33d7850891797e96cdfcf834fe4738bd4105e
SHA512abf300825bfbb2a3821dce6963e2086563af32db91be1be730d0dec1124b756c72c4ad866164a46fb4e1406e3683f2f2fa3fd6548cad075a2637e3679e13792c