Analysis
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max time kernel
136s -
max time network
124s -
platform
windows10_x64 -
resource
win10-en-20211014 -
submitted
19-10-2021 10:38
Static task
static1
Behavioral task
behavioral1
Sample
70654 SSEBACT.exe
Resource
win7-en-20210920
Behavioral task
behavioral2
Sample
70654 SSEBACT.exe
Resource
win10-en-20211014
General
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Target
70654 SSEBACT.exe
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Size
389KB
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MD5
54ad9166b1a65288183c4ee3a5fd0750
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SHA1
36fad28b8c9b45a7b90c3f2fd4e5785b859e48ae
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SHA256
faaa464df297e2bda628f86354e76da115e88941ec92386302a6cac74fecfca0
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SHA512
3b9a58297ac116f94e8728a660cbb963c00722acb3c202ad23f7133eac2368bdbf665c32a1fa10b6f122dd5058113f54ed64fbfdfc1be66f7a701453aef59eba
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.timsonlogisticske.com - Port:
587 - Username:
[email protected] - Password:
timsam2015
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 3 IoCs
Processes:
resource yara_rule behavioral2/memory/732-126-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral2/memory/732-127-0x00000000004375EE-mapping.dmp family_agenttesla behavioral2/memory/732-132-0x0000000005130000-0x000000000562E000-memory.dmp family_agenttesla -
Drops file in Drivers directory 1 IoCs
Processes:
RegSvcs.exedescription ioc process File opened for modification C:\Windows\system32\drivers\etc\hosts RegSvcs.exe -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
RegSvcs.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
RegSvcs.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows\CurrentVersion\Run\NXLun = "C:\\Users\\Admin\\AppData\\Roaming\\NXLun\\NXLun.exe" RegSvcs.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
70654 SSEBACT.exedescription pid process target process PID 5076 set thread context of 732 5076 70654 SSEBACT.exe RegSvcs.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
70654 SSEBACT.exeRegSvcs.exepid process 5076 70654 SSEBACT.exe 5076 70654 SSEBACT.exe 5076 70654 SSEBACT.exe 5076 70654 SSEBACT.exe 732 RegSvcs.exe 732 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
70654 SSEBACT.exeRegSvcs.exedescription pid process Token: SeDebugPrivilege 5076 70654 SSEBACT.exe Token: SeDebugPrivilege 732 RegSvcs.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
70654 SSEBACT.exepid process 5076 70654 SSEBACT.exe 5076 70654 SSEBACT.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
70654 SSEBACT.exedescription pid process target process PID 5076 wrote to memory of 676 5076 70654 SSEBACT.exe RegSvcs.exe PID 5076 wrote to memory of 676 5076 70654 SSEBACT.exe RegSvcs.exe PID 5076 wrote to memory of 676 5076 70654 SSEBACT.exe RegSvcs.exe PID 5076 wrote to memory of 732 5076 70654 SSEBACT.exe RegSvcs.exe PID 5076 wrote to memory of 732 5076 70654 SSEBACT.exe RegSvcs.exe PID 5076 wrote to memory of 732 5076 70654 SSEBACT.exe RegSvcs.exe PID 5076 wrote to memory of 732 5076 70654 SSEBACT.exe RegSvcs.exe PID 5076 wrote to memory of 732 5076 70654 SSEBACT.exe RegSvcs.exe PID 5076 wrote to memory of 732 5076 70654 SSEBACT.exe RegSvcs.exe PID 5076 wrote to memory of 732 5076 70654 SSEBACT.exe RegSvcs.exe PID 5076 wrote to memory of 732 5076 70654 SSEBACT.exe RegSvcs.exe -
outlook_office_path 1 IoCs
Processes:
RegSvcs.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe -
outlook_win_path 1 IoCs
Processes:
RegSvcs.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\70654 SSEBACT.exe"C:\Users\Admin\AppData\Local\Temp\70654 SSEBACT.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/732-126-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/732-134-0x0000000005E90000-0x0000000005E91000-memory.dmpFilesize
4KB
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memory/732-133-0x0000000005610000-0x0000000005611000-memory.dmpFilesize
4KB
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memory/732-132-0x0000000005130000-0x000000000562E000-memory.dmpFilesize
5.0MB
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memory/732-127-0x00000000004375EE-mapping.dmp
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memory/5076-122-0x00000000055A0000-0x0000000005A9E000-memory.dmpFilesize
5.0MB
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memory/5076-115-0x0000000000CB0000-0x0000000000CB1000-memory.dmpFilesize
4KB
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memory/5076-123-0x00000000093C0000-0x00000000093C8000-memory.dmpFilesize
32KB
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memory/5076-124-0x0000000009920000-0x0000000009921000-memory.dmpFilesize
4KB
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memory/5076-125-0x00000000099C0000-0x0000000009A18000-memory.dmpFilesize
352KB
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memory/5076-121-0x00000000055A0000-0x0000000005A9E000-memory.dmpFilesize
5.0MB
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memory/5076-120-0x00000000055A0000-0x0000000005A9E000-memory.dmpFilesize
5.0MB
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memory/5076-119-0x0000000005560000-0x0000000005561000-memory.dmpFilesize
4KB
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memory/5076-118-0x00000000055A0000-0x00000000055A1000-memory.dmpFilesize
4KB
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memory/5076-117-0x0000000005AA0000-0x0000000005AA1000-memory.dmpFilesize
4KB