Analysis
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max time kernel
132s -
max time network
133s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
31/08/2024, 14:21
Static task
static1
Behavioral task
behavioral1
Sample
4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe
Resource
win10v2004-20240802-en
General
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Target
4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe
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Size
731KB
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MD5
e1aaa1e3dec10d718e4e84910551a653
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SHA1
7dd70ebbe1edcb54243f7121078b1d830d2c0037
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SHA256
4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a
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SHA512
a3628f9dbe9feaf7bbf1aae4a38798ebf811bbe9657c6df2866d1e355fa3200c3f6a69ebeb316ec65109b14e1a77d4967a83904fd168334e2f7d626410257616
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SSDEEP
12288:jQKlh08OGQuZLvqJFTP8TQ/8SfwH5ADOfW3jCaFUmMKWOTevZHQxtnAZTrBhe43:4nGQYTqD/DwiKfW3j9UVvZHQTE
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.msjfurniturewll.com - Port:
587 - Username:
[email protected] - Password:
abc@1234!5 - 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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AgentTesla payload 1 IoCs
resource yara_rule behavioral2/memory/2264-16-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla -
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
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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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation 4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.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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Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe Key opened \REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe Key opened \REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jNnIJrO = "C:\\Users\\Admin\\AppData\\Roaming\\jNnIJrO\\jNnIJrO.exe" 4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4480 set thread context of 2264 4480 4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe 97 -
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 3 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 4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.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 5096 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
pid Process 4480 4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe 4480 4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe 4480 4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe 2264 4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe 2264 4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe -
Suspicious behavior: RenamesItself 1 IoCs
pid Process 2264 4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4480 4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe Token: SeDebugPrivilege 2264 4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2264 4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 4480 wrote to memory of 5096 4480 4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe 94 PID 4480 wrote to memory of 5096 4480 4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe 94 PID 4480 wrote to memory of 5096 4480 4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe 94 PID 4480 wrote to memory of 3068 4480 4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe 96 PID 4480 wrote to memory of 3068 4480 4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe 96 PID 4480 wrote to memory of 3068 4480 4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe 96 PID 4480 wrote to memory of 2264 4480 4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe 97 PID 4480 wrote to memory of 2264 4480 4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe 97 PID 4480 wrote to memory of 2264 4480 4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe 97 PID 4480 wrote to memory of 2264 4480 4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe 97 PID 4480 wrote to memory of 2264 4480 4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe 97 PID 4480 wrote to memory of 2264 4480 4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe 97 PID 4480 wrote to memory of 2264 4480 4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe 97 PID 4480 wrote to memory of 2264 4480 4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe 97 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe"C:\Users\Admin\AppData\Local\Temp\4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4480 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RdkbDKRksCKjc" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1ECE.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:5096
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C:\Users\Admin\AppData\Local\Temp\4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe"{path}"2⤵PID:3068
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C:\Users\Admin\AppData\Local\Temp\4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:2264
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
5Credentials In Files
4Credentials in Registry
1Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe.log
Filesize1KB
MD517573558c4e714f606f997e5157afaac
SHA113e16e9415ceef429aaf124139671ebeca09ed23
SHA256c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553
SHA512f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc
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Filesize
1KB
MD5ea876aa2ad7bdbdc2c4197e070e55a35
SHA1a8ff4d630254fd33e66091d185aae0bd4be9f5e0
SHA256721aac2ee80b485c99589c32aef5bd4371dbd85e087480cb947aa927df1ea115
SHA512a13516bd7f5ee0a0dd536d08b600cc4c10a3c1651e8d38fc68e0493f99c548847336b6261468ac3c6de8823ac6de189b8f624ea7b1dc37f76816260a9f46a23a