Analysis
- max time kernel
75s - max time network
142s - platform
windows10_x64 - resource
win10v20201028 - submitted
09/11/2020, 20:09
General
- Target 3RD PROFORMA 06-11-2019.xls.exe
- Size 505KB
- Sample201109-8jwfdf21rs
- SHA256 0bf290a73baa8beb82a67821288ca8581b761ed6b0529f50771e497c52c27cdd
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.yandex.ru
-
Port
587
-
Username
-
Password
solomon12345$$$1
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- CoreEntity .NET Packer 1 IoCs
A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.
- AgentTesla Payload 2 IoCs
- rezer0 1 IoCs
Detects ReZer0, a packer with multiple versions used in various campaigns.
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\3RD PROFORMA 06-11-2019.xls.exe"C:\Users\Admin\AppData\Local\Temp\3RD PROFORMA 06-11-2019.xls.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Matrix
Replay Monitor
Loading Replay Monitor...
Downloads
memory/3604-9-0x0000000000400000-0x000000000044E000-memory.dmp
memory/3604-17-0x0000000005C20000-0x0000000005C21000-memory.dmp
memory/3604-16-0x0000000003080000-0x0000000003081000-memory.dmp
memory/3604-11-0x0000000073900000-0x0000000073FEE000-memory.dmp
memory/4688-4-0x0000000007400000-0x0000000007401000-memory.dmp
memory/4688-7-0x000000000AC20000-0x000000000AC70000-memory.dmp
memory/4688-8-0x000000000AD10000-0x000000000AD11000-memory.dmp
memory/4688-6-0x00000000090F0000-0x00000000090F2000-memory.dmp
memory/4688-5-0x00000000073B0000-0x00000000073B1000-memory.dmp
memory/4688-0-0x0000000073900000-0x0000000073FEE000-memory.dmp
memory/4688-3-0x0000000007820000-0x0000000007821000-memory.dmp
memory/4688-1-0x0000000000620000-0x0000000000621000-memory.dmp