Analysis
- max time kernel
150s - max time network
16s - platform
windows7_x64 - resource
win7-en-20210920 - submitted
30/09/2021, 06:33
General
- Target Letter 377WZR-11200C.exe
- Size 680KB
- Sample210930-ha7jsaggb7
- SHA256 4d5da6f39e82ecfd24743a6096ff2963be8ef2b2d8e968584b23fdb879d49c7e
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
-
Port
587
-
Username
-
Password
Everest10
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 3 IoCs
- 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 4 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Letter 377WZR-11200C.exe"C:\Users\Admin\AppData\Local\Temp\Letter 377WZR-11200C.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Letter 377WZR-11200C.exe"C:\Users\Admin\AppData\Local\Temp\Letter 377WZR-11200C.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1756-53-0x0000000000300000-0x0000000000301000-memory.dmp
memory/1756-55-0x0000000004E40000-0x0000000004E41000-memory.dmp
memory/1756-56-0x0000000000420000-0x0000000000433000-memory.dmp
memory/1756-57-0x0000000004DB0000-0x0000000004E19000-memory.dmp
memory/1756-58-0x0000000000490000-0x0000000000492000-memory.dmp
memory/1756-59-0x00000000009D0000-0x0000000000A14000-memory.dmp
memory/1828-60-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1828-62-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1828-64-0x0000000000A70000-0x0000000000A71000-memory.dmp