Analysis
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max time kernel
139s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
07-06-2023 12:20
Static task
static1
Behavioral task
behavioral1
Sample
8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe
Resource
win10v2004-20230220-en
General
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Target
8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe
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Size
723KB
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MD5
d968e6844283d3ab39f87324efc55fe4
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SHA1
c12db994aa1c313bdc89a37d9aaad0c21c6019a0
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SHA256
8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e
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SHA512
4d56c138c169fa56068a0538729eaaf1482885609c0f91f23b0f0239ee99e27a865b99f58285c4bc052675c0aeabf96ae079e42eb8140da3ec356292082dbdfa
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SSDEEP
12288:HKfPSljSjhQUMuVGBI8yCiOuwxoeN537HO:HcQTUMGGBcCiO/tO
Malware Config
Extracted
Protocol: smtp- Host:
mail.wecaresvc.com - Port:
587 - Username:
[email protected] - Password:
u9367gk8qc
Extracted
agenttesla
Protocol: smtp- Host:
mail.wecaresvc.com - Port:
587 - Username:
[email protected] - Password:
u9367gk8qc - 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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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-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation 8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.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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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NJLOSe = "C:\\Users\\Admin\\AppData\\Roaming\\NJLOSe\\NJLOSe.exe" 8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4564 set thread context of 4044 4564 8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe 87 -
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 4420 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 4564 8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4564 8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe Token: SeDebugPrivilege 4044 8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 4564 wrote to memory of 4420 4564 8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe 85 PID 4564 wrote to memory of 4420 4564 8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe 85 PID 4564 wrote to memory of 4420 4564 8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe 85 PID 4564 wrote to memory of 4044 4564 8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe 87 PID 4564 wrote to memory of 4044 4564 8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe 87 PID 4564 wrote to memory of 4044 4564 8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe 87 PID 4564 wrote to memory of 4044 4564 8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe 87 PID 4564 wrote to memory of 4044 4564 8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe 87 PID 4564 wrote to memory of 4044 4564 8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe 87 PID 4564 wrote to memory of 4044 4564 8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe 87 PID 4564 wrote to memory of 4044 4564 8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe 87 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe"C:\Users\Admin\AppData\Local\Temp\8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4564 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qqtHrPy" /XML "C:\Users\Admin\AppData\Local\Temp\tmp530.tmp"2⤵
- Creates scheduled task(s)
PID:4420
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C:\Users\Admin\AppData\Local\Temp\8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4044
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe.log
Filesize1KB
MD517573558c4e714f606f997e5157afaac
SHA113e16e9415ceef429aaf124139671ebeca09ed23
SHA256c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553
SHA512f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc
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Filesize
1KB
MD53720d9e2599577bc32acb80e9ad88d67
SHA1be339c5e0b6436c0d36dc642d703e2b76865cbb0
SHA25689ab80ecda1cc8ea32e5366e0db9021fddf23b71e673b7ad74cadee54881b294
SHA512b5d2320c43debeac1bb0d1f12a34b39caf59a0781aed9a9253ef25d3cb0bc19423a4d982b498a0de82b2cbf27bad41f63016cebd6feb8c3ab9d472b9bbdbd956