Analysis
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max time kernel
105s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
21-05-2022 02:01
Static task
static1
Behavioral task
behavioral1
Sample
PO 8433,.exe
Resource
win7-20220414-en
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
PO 8433,.exe
Resource
win10v2004-20220414-en
windows10-2004_x64
0 signatures
0 seconds
General
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Target
PO 8433,.exe
-
Size
475KB
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MD5
f31de3ccbfeaab2d3c5444864a3751d0
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SHA1
95f329022a882bfbbc36717bd9b324aed0513dc2
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SHA256
f21d472a74c33a35138111341a52a7dd85dc6131c788fa79dfc17537626dc12b
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SHA512
083acfbdf3edaea147aaefda36d8d27339ff7c6ed48f2e9438bc232c465f83c7bfcccd53a92fb2ec42a7d1807cfdc4454f270782a16a4b5fc6cd141d6669fa7e
Malware Config
Extracted
Family
agenttesla
Credentials
Protocol: smtp- Host:
mail.dianaglobalmandiri.com - Port:
587 - Username:
[email protected] - Password:
Batam2019
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/208-136-0x0000000000400000-0x0000000000452000-memory.dmp family_agenttesla -
Disables Task Manager via registry modification
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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-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
PO 8433,.exedescription pid process target process PID 980 set thread context of 208 980 PO 8433,.exe RegSvcs.exe -
Modifies registry key 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
RegSvcs.exepid process 208 RegSvcs.exe 208 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
RegSvcs.exedescription pid process Token: SeDebugPrivilege 208 RegSvcs.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
PO 8433,.exeRegSvcs.exedescription pid process target process PID 980 wrote to memory of 208 980 PO 8433,.exe RegSvcs.exe PID 980 wrote to memory of 208 980 PO 8433,.exe RegSvcs.exe PID 980 wrote to memory of 208 980 PO 8433,.exe RegSvcs.exe PID 980 wrote to memory of 208 980 PO 8433,.exe RegSvcs.exe PID 980 wrote to memory of 208 980 PO 8433,.exe RegSvcs.exe PID 980 wrote to memory of 208 980 PO 8433,.exe RegSvcs.exe PID 980 wrote to memory of 208 980 PO 8433,.exe RegSvcs.exe PID 980 wrote to memory of 208 980 PO 8433,.exe RegSvcs.exe PID 208 wrote to memory of 1100 208 RegSvcs.exe REG.exe PID 208 wrote to memory of 1100 208 RegSvcs.exe REG.exe PID 208 wrote to memory of 1100 208 RegSvcs.exe REG.exe PID 208 wrote to memory of 832 208 RegSvcs.exe netsh.exe PID 208 wrote to memory of 832 208 RegSvcs.exe netsh.exe PID 208 wrote to memory of 832 208 RegSvcs.exe netsh.exe -
outlook_office_path 1 IoCs
Processes:
RegSvcs.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\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-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\PO 8433,.exe"C:\Users\Admin\AppData\Local\Temp\PO 8433,.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:980 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"{path}"2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:208 -
C:\Windows\SysWOW64\REG.exeREG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f3⤵
- Modifies registry key
PID:1100 -
C:\Windows\SysWOW64\netsh.exe"netsh" wlan show profile3⤵PID:832
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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memory/208-135-0x0000000000000000-mapping.dmp
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memory/208-136-0x0000000000400000-0x0000000000452000-memory.dmpFilesize
328KB
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memory/208-137-0x0000000005FC0000-0x0000000006026000-memory.dmpFilesize
408KB
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memory/208-139-0x0000000006B70000-0x0000000006BC0000-memory.dmpFilesize
320KB
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memory/832-140-0x0000000000000000-mapping.dmp
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memory/980-130-0x00000000001E0000-0x000000000025E000-memory.dmpFilesize
504KB
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memory/980-131-0x0000000009640000-0x0000000009BE4000-memory.dmpFilesize
5.6MB
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memory/980-132-0x0000000004DB0000-0x0000000004E42000-memory.dmpFilesize
584KB
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memory/980-133-0x0000000004D10000-0x0000000004D1A000-memory.dmpFilesize
40KB
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memory/980-134-0x0000000009450000-0x00000000094EC000-memory.dmpFilesize
624KB
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memory/1100-138-0x0000000000000000-mapping.dmp