Analysis
- max time kernel
143s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20231127-en - resource tags
- submitted
01/12/2023, 01:55
General
- Target 37e3f1e9b099b6c47e51b9c065021f7b800da8d7ddd0fbdd346457ee11e3b8f2.exe
- Size 715KB
- Sample231201-ccc53adg7v
- SHA256 37e3f1e9b099b6c47e51b9c065021f7b800da8d7ddd0fbdd346457ee11e3b8f2
Malware Config
Extracted
-
Protocol
smtp
-
Host
smtp.imperialshipping.co.in
-
Port
587
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Username
-
Password
RpF!!f)5
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.imperialshipping.co.in
-
Port
587
-
Username
-
Password
RpF!!f)5
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Detect PureLogs payload 1 IoCs
- PureLogs
PureLogs is an infostealer written in C#.
- 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.
- Adds Run key to start application 2 TTPs 1 IoCs
- Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\37e3f1e9b099b6c47e51b9c065021f7b800da8d7ddd0fbdd346457ee11e3b8f2.exe"C:\Users\Admin\AppData\Local\Temp\37e3f1e9b099b6c47e51b9c065021f7b800da8d7ddd0fbdd346457ee11e3b8f2.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\37e3f1e9b099b6c47e51b9c065021f7b800da8d7ddd0fbdd346457ee11e3b8f2.exeC:\Users\Admin\AppData\Local\Temp\37e3f1e9b099b6c47e51b9c065021f7b800da8d7ddd0fbdd346457ee11e3b8f2.exe2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\37e3f1e9b099b6c47e51b9c065021f7b800da8d7ddd0fbdd346457ee11e3b8f2.exeC:\Users\Admin\AppData\Local\Temp\37e3f1e9b099b6c47e51b9c065021f7b800da8d7ddd0fbdd346457ee11e3b8f2.exe2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
37e3f1e9b099b6c47e51b9c065021f7b800da8d7ddd0fbdd346457ee11e3b8f2.exe.log
memory/760-12-0x0000000074DA0000-0x0000000075550000-memory.dmp
memory/760-21-0x00000000053F0000-0x0000000005400000-memory.dmp
memory/760-20-0x0000000074DA0000-0x0000000075550000-memory.dmp
memory/760-19-0x0000000006F20000-0x0000000006F2A000-memory.dmp
memory/760-18-0x0000000006F90000-0x0000000007022000-memory.dmp
memory/760-17-0x0000000006E50000-0x0000000006EEC000-memory.dmp
memory/760-16-0x0000000006D60000-0x0000000006DB0000-memory.dmp
memory/760-15-0x00000000055B0000-0x0000000005616000-memory.dmp
memory/760-9-0x0000000000400000-0x0000000000442000-memory.dmp
memory/760-14-0x00000000053F0000-0x0000000005400000-memory.dmp
memory/1232-5-0x0000000004F40000-0x0000000004F80000-memory.dmp
memory/1232-13-0x0000000074DA0000-0x0000000075550000-memory.dmp
memory/1232-7-0x0000000005610000-0x0000000005BB4000-memory.dmp
memory/1232-6-0x0000000004F80000-0x0000000004FCC000-memory.dmp
memory/1232-0-0x0000000000440000-0x00000000004F8000-memory.dmp
memory/1232-4-0x0000000004ED0000-0x0000000004F10000-memory.dmp
memory/1232-3-0x0000000005020000-0x0000000005030000-memory.dmp
memory/1232-2-0x0000000004E70000-0x0000000004ECA000-memory.dmp
memory/1232-1-0x0000000074DA0000-0x0000000075550000-memory.dmp