Analysis
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max time kernel
146s -
max time network
119s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
21/05/2024, 01:58
Static task
static1
Behavioral task
behavioral1
Sample
scan0085..exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
scan0085..exe
Resource
win10v2004-20240426-en
General
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Target
scan0085..exe
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Size
731KB
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MD5
9c5cf8df3c25ba48acfae10528a0289e
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SHA1
d0185f4e2b1796862d291fe2fe781f02a18af85b
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SHA256
48d1ff7448d143804637331fbdd977a19fce92f578c6cba71a6593162da4a0cb
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SHA512
78b801a455d29b08c03ea6cecc919907eef15ae6bd2088b05c2d5c21e838fc60bb64ca5d841642c17e3812b239f3b602980024522b84529d46fd3e40608afba8
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SSDEEP
12288:4WET/mr9KGPuvBFYsXjje3A3hmcY+zoxTmEJJf4l1ITkdUKaeEozOkR:4WtvuJFZXe3AAiS7Jx49bV
Malware Config
Extracted
Protocol: smtp- Host:
mail.naubahar.com - Port:
587 - Username:
[email protected] - Password:
Hum$885+Nn
Extracted
agenttesla
Protocol: smtp- Host:
mail.naubahar.com - Port:
587 - Username:
[email protected] - Password:
Hum$885+Nn - 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 4192 powershell.exe 4848 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-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation scan0085..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
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\My App = "C:\\Users\\Admin\\AppData\\Roaming\\My App\\My App.exe" scan0085..exe -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 20 api.ipify.org 21 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1992 set thread context of 4484 1992 scan0085..exe 100 -
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.
pid Process 3632 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 12 IoCs
pid Process 1992 scan0085..exe 4848 powershell.exe 4848 powershell.exe 4192 powershell.exe 4192 powershell.exe 1992 scan0085..exe 1992 scan0085..exe 4484 scan0085..exe 4484 scan0085..exe 4484 scan0085..exe 4848 powershell.exe 4192 powershell.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1992 scan0085..exe Token: SeDebugPrivilege 4192 powershell.exe Token: SeDebugPrivilege 4848 powershell.exe Token: SeDebugPrivilege 4484 scan0085..exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 1992 wrote to memory of 4192 1992 scan0085..exe 93 PID 1992 wrote to memory of 4192 1992 scan0085..exe 93 PID 1992 wrote to memory of 4192 1992 scan0085..exe 93 PID 1992 wrote to memory of 4848 1992 scan0085..exe 96 PID 1992 wrote to memory of 4848 1992 scan0085..exe 96 PID 1992 wrote to memory of 4848 1992 scan0085..exe 96 PID 1992 wrote to memory of 3632 1992 scan0085..exe 98 PID 1992 wrote to memory of 3632 1992 scan0085..exe 98 PID 1992 wrote to memory of 3632 1992 scan0085..exe 98 PID 1992 wrote to memory of 4484 1992 scan0085..exe 100 PID 1992 wrote to memory of 4484 1992 scan0085..exe 100 PID 1992 wrote to memory of 4484 1992 scan0085..exe 100 PID 1992 wrote to memory of 4484 1992 scan0085..exe 100 PID 1992 wrote to memory of 4484 1992 scan0085..exe 100 PID 1992 wrote to memory of 4484 1992 scan0085..exe 100 PID 1992 wrote to memory of 4484 1992 scan0085..exe 100 PID 1992 wrote to memory of 4484 1992 scan0085..exe 100
Processes
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C:\Users\Admin\AppData\Local\Temp\scan0085..exe"C:\Users\Admin\AppData\Local\Temp\scan0085..exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1992 -
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\scan0085..exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4192
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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\ayybCeIBnYVSQ.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4848
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ayybCeIBnYVSQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6E89.tmp"2⤵
- Creates scheduled task(s)
PID:3632
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C:\Users\Admin\AppData\Local\Temp\scan0085..exe"C:\Users\Admin\AppData\Local\Temp\scan0085..exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4484
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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
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Downloads
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Filesize
2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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Filesize
18KB
MD59b1ad9d07a0afa79fc4bde8e2ea704c7
SHA14d35e692f5de96df1242887e8b13d5f23ff0e47b
SHA2566a8390bbc19498bfe519e3b4e7dea5ecf0e15ca17bd1835f23cfc6257198d5dd
SHA512e66790d113461c1a74ffb218a606846187fe499a46cf46ef85f7c7e728718f2391e35d205a96c1530ec0f473e75310ec1f9bf2ae87533ac7487138cbc5dbcb1e
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD5a4780b87a766dbbce1aea910ea3ecad2
SHA1428fb5e2ed922c7fd6e919a49292d886803a1e24
SHA25619225b5af02ad09bc68d11a365f26a53168275cab627a14065a44cfdbc0adc54
SHA51260bb23570baea705b59ca1d9654d7aa892de8c3f7c9e2eb70c5f179f6f015828d9ccd120635ae318b6916d15f12aea0357b0bab9de9378d1200fb3c86eff60a9