Analysis
- max time kernel
56s - max time network
13s - platform
windows7_x64 - resource
win7v20201028 - submitted
09/11/2020, 20:47
General
- Target DHL_express_package.exe
- Size 698KB
- Sample201109-pvx21hexce
- SHA256 d5f933d0f63fce5d2680f5de70a3533413e32d25eb8861bcc589843ddd5bc75f
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.mosaiclayouts.com
-
Port
587
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Username
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Password
UY$W4+]^+9;)7CF5
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 4 IoCs
- UPX packed file 3 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Drops startup file 1 IoCs
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 3 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 10 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\DHL_express_package.exe"C:\Users\Admin\AppData\Local\Temp\DHL_express_package.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\notepad.exe"C:\Windows\system32\notepad.exe"2⤵
- Drops startup file
-
-
C:\Users\Admin\AppData\Local\Temp\DHL_express_package.exe"C:\Users\Admin\AppData\Local\Temp\DHL_express_package.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1224-1-0x0000000000090000-0x0000000000091000-memory.dmp
memory/1468-2-0x0000000000400000-0x00000000004A5000-memory.dmp
memory/1468-4-0x0000000000400000-0x00000000004A5000-memory.dmp
memory/1468-5-0x0000000000400000-0x00000000004A5000-memory.dmp
memory/1468-6-0x0000000001C90000-0x0000000001CDC000-memory.dmp
memory/1468-7-0x0000000001DA2000-0x0000000001DA3000-memory.dmp
memory/1468-8-0x00000000004B0000-0x00000000004F7000-memory.dmp
memory/1468-10-0x00000000742C0000-0x00000000749AE000-memory.dmp