Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
01-10-2024 21:00
Static task
static1
Behavioral task
behavioral1
Sample
tmpiaoem9m3.exe
Resource
win7-20240903-en
General
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Target
tmpiaoem9m3.exe
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Size
920KB
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MD5
78eff09f295aa4b3aaf36af5245efe94
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SHA1
dea545e8b85f2c1201f7aa3a54f643826ca8a6ed
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SHA256
38f275624c634801c164c2c8f3294cbeea49b47e8e8d83bda53a0bc8aa7f7106
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SHA512
a8b49247156aa7004206f24211054f7f37c73df06e8a85ecf843e9c44cc99a5cf29886e85ba03d89a87a1d3968322c25cdef7877ae6c5efcfa946910204ce67f
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SSDEEP
12288:T3TEG/N9AKPGu+MAyn6+6Slh5/2qVe2lR8XaZW4IaBAP7r9r/+ppppppppppppp7:8AnAPRo6+pPOnoR8X2W4JBA1q
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.iaa-airferight.com - Port:
587 - Username:
[email protected] - Password:
manlikeyou88 - 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.
pid Process 3460 powershell.exe 2828 powershell.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation tmpiaoem9m3.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 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4920 set thread context of 2344 4920 tmpiaoem9m3.exe 93 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language tmpiaoem9m3.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language tmpiaoem9m3.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3008 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 3460 powershell.exe 2828 powershell.exe 3460 powershell.exe 2828 powershell.exe 2344 tmpiaoem9m3.exe 2344 tmpiaoem9m3.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 3460 powershell.exe Token: SeDebugPrivilege 2828 powershell.exe Token: SeDebugPrivilege 2344 tmpiaoem9m3.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 4920 wrote to memory of 3460 4920 tmpiaoem9m3.exe 87 PID 4920 wrote to memory of 3460 4920 tmpiaoem9m3.exe 87 PID 4920 wrote to memory of 3460 4920 tmpiaoem9m3.exe 87 PID 4920 wrote to memory of 2828 4920 tmpiaoem9m3.exe 89 PID 4920 wrote to memory of 2828 4920 tmpiaoem9m3.exe 89 PID 4920 wrote to memory of 2828 4920 tmpiaoem9m3.exe 89 PID 4920 wrote to memory of 3008 4920 tmpiaoem9m3.exe 91 PID 4920 wrote to memory of 3008 4920 tmpiaoem9m3.exe 91 PID 4920 wrote to memory of 3008 4920 tmpiaoem9m3.exe 91 PID 4920 wrote to memory of 2344 4920 tmpiaoem9m3.exe 93 PID 4920 wrote to memory of 2344 4920 tmpiaoem9m3.exe 93 PID 4920 wrote to memory of 2344 4920 tmpiaoem9m3.exe 93 PID 4920 wrote to memory of 2344 4920 tmpiaoem9m3.exe 93 PID 4920 wrote to memory of 2344 4920 tmpiaoem9m3.exe 93 PID 4920 wrote to memory of 2344 4920 tmpiaoem9m3.exe 93 PID 4920 wrote to memory of 2344 4920 tmpiaoem9m3.exe 93 PID 4920 wrote to memory of 2344 4920 tmpiaoem9m3.exe 93
Processes
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C:\Users\Admin\AppData\Local\Temp\tmpiaoem9m3.exe"C:\Users\Admin\AppData\Local\Temp\tmpiaoem9m3.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4920 -
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\tmpiaoem9m3.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3460
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\zriEHRxkd.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2828
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zriEHRxkd" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC592.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:3008
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C:\Users\Admin\AppData\Local\Temp\tmpiaoem9m3.exe"C:\Users\Admin\AppData\Local\Temp\tmpiaoem9m3.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2344
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Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
4Credentials In Files
3Credentials in Registry
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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Filesize
18KB
MD58bc9254e58ac730fb47fb9ef3075c0db
SHA177fcab5cdab5360843eb98d4d8916797bed56975
SHA256491854dcc5f331ec0b859f900bb653b984be26dacc78d3d507f5a55e6bc426ff
SHA512b9bb0e60cb481ea4becfc3a3f9aef515c15ed7b38bd5441ad08c5568439f45e805a42b43e41d72cfbc1bb54139e4d28858889fe4aa41c259f1a00f10e63c6bd2
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD556289b43a3d37fc508b996e07867f891
SHA1b3f498b17e51f48eb86e172accf2d0ce221785b3
SHA256489a9b92ed62865e56e2f484b7427f8c337d9be2e36a3023464b0cf4c5eb389b
SHA512204672f6b6fd2182ab5f99a3de0d3198b5fac4853945c6cb58c1b020edb7be082adf4890c111b4a0cf1191dc5f7b585ab3d09546733fbae5226d86fcd50bf617