Analysis
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max time kernel
130s -
max time network
136s -
platform
windows7_x64 -
resource
win7 -
submitted
08-07-2020 06:32
Static task
static1
Behavioral task
behavioral1
Sample
Bank Details.exe
Resource
win7
Behavioral task
behavioral2
Sample
Bank Details.exe
Resource
win10v200430
General
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Target
Bank Details.exe
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Size
887KB
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MD5
f225456e24d7141baf16fa70e19fef8a
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SHA1
1c8c1786bf9278e6083c7da1c3c9404b007043bc
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SHA256
c62691c81bf080e70b24824537d2abc3a88ff1c554b3c2d2727e06024712eefe
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SHA512
d4974c435f3a1c5050a9758769d934ec53ef9c008b2a99f25cf96fe7fa731d498daf43e47aef00ccef1b0804b0ef57a0cd8853d9ce7ab2fe2fe36e0a43ff8647
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.threewaystoharems.com - Port:
587 - Username:
[email protected] - Password:
sales@123456
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 4 IoCs
resource yara_rule behavioral1/memory/1320-0-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1320-1-0x000000000044737E-mapping.dmp family_agenttesla behavioral1/memory/1320-2-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1320-3-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla -
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-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\YYtJku = "C:\\Users\\Admin\\AppData\\Roaming\\YYtJku\\YYtJku.exe" Bank Details.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1072 set thread context of 1320 1072 Bank Details.exe 24 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1320 Bank Details.exe 1320 Bank Details.exe -
Suspicious behavior: RenamesItself 1 IoCs
pid Process 1320 Bank Details.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1320 Bank Details.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 1072 wrote to memory of 1320 1072 Bank Details.exe 24 PID 1072 wrote to memory of 1320 1072 Bank Details.exe 24 PID 1072 wrote to memory of 1320 1072 Bank Details.exe 24 PID 1072 wrote to memory of 1320 1072 Bank Details.exe 24 PID 1072 wrote to memory of 1320 1072 Bank Details.exe 24 PID 1072 wrote to memory of 1320 1072 Bank Details.exe 24 PID 1072 wrote to memory of 1320 1072 Bank Details.exe 24 PID 1072 wrote to memory of 1320 1072 Bank Details.exe 24 PID 1072 wrote to memory of 1320 1072 Bank Details.exe 24
Processes
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C:\Users\Admin\AppData\Local\Temp\Bank Details.exe"C:\Users\Admin\AppData\Local\Temp\Bank Details.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1072 -
C:\Users\Admin\AppData\Local\Temp\Bank Details.exe"{path}"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
PID:1320
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