Analysis
- max time kernel
115s - max time network
120s - platform
windows7_x64 - resource
win7 - submitted
03/08/2020, 13:45
Static task
static1
Behavioral task
behavioral1
Sample
LindstrmPO45676.exe
Resource
win7
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
LindstrmPO45676.exe
Resource
win10v200722
0 signatures
0 seconds
General
- Target LindstrmPO45676.exe
- Size 711KB
- Sample200803-e5f45czhs6
- SHA256 e5c5c9d753512a626d7bc4e6a14191b3db75290da5046b7d4d5fd4acc2ed3460
- MD5 1a9146e0dc61061a51b98c1fb7f14afe
- SHA1 55ec3db29f152c909ac6b99c40b0178d6f4f0ce6
- SHA512 4bd64a1fa4e2049db02d45c95f69131d77e78cf1349e34543c0ffe09d6fcaccc925f8add6fea4e30d6bef622ac4a58f5ee45fcca106b0cec00f11fb3454f8e69
- MD5 SHA1 SHA512
Malware Config
Signatures
- Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1152 LindstrmPO45676.exe Token: SeDebugPrivilege 1780 LindstrmPO45676.exe - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 1152 LindstrmPO45676.exe 1152 LindstrmPO45676.exe 1152 LindstrmPO45676.exe 1152 LindstrmPO45676.exe 1780 LindstrmPO45676.exe 1780 LindstrmPO45676.exe - Suspicious behavior: RenamesItself 1 IoCs
pid Process 1780 LindstrmPO45676.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1780 LindstrmPO45676.exe -
resource yara_rule behavioral1/memory/1780-2-0x0000000000400000-0x000000000044C000-memory.dmp agent_tesla behavioral1/memory/1780-2-0x0000000000400000-0x000000000044C000-memory.dmp agent_tesla behavioral1/memory/1780-3-0x0000000000446CDE-mapping.dmp agent_tesla behavioral1/memory/1780-4-0x0000000000400000-0x000000000044C000-memory.dmp agent_tesla behavioral1/memory/1780-4-0x0000000000400000-0x000000000044C000-memory.dmp agent_tesla behavioral1/memory/1780-5-0x0000000000400000-0x000000000044C000-memory.dmp agent_tesla behavioral1/memory/1780-5-0x0000000000400000-0x000000000044C000-memory.dmp agent_tesla - Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 1152 wrote to memory of 1780 1152 LindstrmPO45676.exe 24 PID 1152 wrote to memory of 1780 1152 LindstrmPO45676.exe 24 PID 1152 wrote to memory of 1780 1152 LindstrmPO45676.exe 24 PID 1152 wrote to memory of 1780 1152 LindstrmPO45676.exe 24 PID 1152 wrote to memory of 1780 1152 LindstrmPO45676.exe 24 PID 1152 wrote to memory of 1780 1152 LindstrmPO45676.exe 24 PID 1152 wrote to memory of 1780 1152 LindstrmPO45676.exe 24 PID 1152 wrote to memory of 1780 1152 LindstrmPO45676.exe 24 PID 1152 wrote to memory of 1780 1152 LindstrmPO45676.exe 24 - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1152 set thread context of 1780 1152 LindstrmPO45676.exe 24 - Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- 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\MyApps = "C:\\Users\\Admin\\AppData\\Roaming\\MyApps\\MyApps.exe" LindstrmPO45676.exe - Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
Processes
-
C:\Users\Admin\AppData\Local\Temp\LindstrmPO45676.exe"C:\Users\Admin\AppData\Local\Temp\LindstrmPO45676.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- Suspicious use of SetThreadContext
PID:1152 -
C:\Users\Admin\AppData\Local\Temp\LindstrmPO45676.exe"{path}"2⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of SetWindowsHookEx
- Adds Run key to start application
PID:1780
-