Analysis
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max time kernel
174s -
max time network
203s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
20-05-2022 23:21
Static task
static1
Behavioral task
behavioral1
Sample
SOA.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
SOA.exe
Resource
win10v2004-20220414-en
General
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Target
SOA.exe
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Size
687KB
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MD5
95cbcdfe7d89c89c759303a0e845d8b1
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SHA1
3950ee91663e1142e889208c474ebc7d36995d5c
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SHA256
f82fcb01f1334b2885bc090c3bc8bc587f64919b9739e95ffe12c9e5d5bc11cd
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SHA512
c00438306fe5bfae406db98ea71779745ebbe4643c2993fb12a47a13dca2de5c71ec40a81cbf8d9e7ad3901b6921ef9e46d7bd01d597c89df6a494ed20493e31
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.palcoman.com - Port:
587 - Username:
[email protected] - Password:
GgwWVBJ5
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/3352-138-0x0000000000400000-0x000000000044C000-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 -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
SOA.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation SOA.exe -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
RegSvcs.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\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-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gKWBf = "C:\\Users\\Admin\\AppData\\Roaming\\gKWBf\\gKWBf.exe" RegSvcs.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
SOA.exedescription pid process target process PID 332 set thread context of 3352 332 SOA.exe RegSvcs.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Modifies registry key 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
SOA.exeRegSvcs.exepid process 332 SOA.exe 332 SOA.exe 332 SOA.exe 332 SOA.exe 3352 RegSvcs.exe 3352 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
SOA.exeRegSvcs.exedescription pid process Token: SeDebugPrivilege 332 SOA.exe Token: SeDebugPrivilege 3352 RegSvcs.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
SOA.exeRegSvcs.exedescription pid process target process PID 332 wrote to memory of 224 332 SOA.exe schtasks.exe PID 332 wrote to memory of 224 332 SOA.exe schtasks.exe PID 332 wrote to memory of 224 332 SOA.exe schtasks.exe PID 332 wrote to memory of 3352 332 SOA.exe RegSvcs.exe PID 332 wrote to memory of 3352 332 SOA.exe RegSvcs.exe PID 332 wrote to memory of 3352 332 SOA.exe RegSvcs.exe PID 332 wrote to memory of 3352 332 SOA.exe RegSvcs.exe PID 332 wrote to memory of 3352 332 SOA.exe RegSvcs.exe PID 332 wrote to memory of 3352 332 SOA.exe RegSvcs.exe PID 332 wrote to memory of 3352 332 SOA.exe RegSvcs.exe PID 332 wrote to memory of 3352 332 SOA.exe RegSvcs.exe PID 3352 wrote to memory of 836 3352 RegSvcs.exe REG.exe PID 3352 wrote to memory of 836 3352 RegSvcs.exe REG.exe PID 3352 wrote to memory of 836 3352 RegSvcs.exe REG.exe -
outlook_office_path 1 IoCs
Processes:
RegSvcs.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\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-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\SOA.exe"C:\Users\Admin\AppData\Local\Temp\SOA.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AfRYffCadnbirk" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8558.tmp"2⤵
- Creates scheduled task(s)
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"{path}"2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
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C:\Windows\SysWOW64\REG.exeREG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System / v DisableTaskMgr / t REG_DWORD / d 1 / f3⤵
- Modifies registry key
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\tmp8558.tmpFilesize
1KB
MD5559359fa4e06ba3fb7609ba043a6c352
SHA1f123dc8da4c08bfca71fb1d341c71f0abc0a854e
SHA256075eddddbef74816f0bcad06c9fd7963d910fbe5f2c716fb16dd7adfc813278c
SHA512678172516fa058662d48a9fa011edc060cd1b1845896eface9ce8f44f9a62122b3379261722c9905120089b2d42690ee4c30ab83e26a0d7b9ccef1e61e439a7d
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memory/224-135-0x0000000000000000-mapping.dmp
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memory/332-130-0x00000000008D0000-0x0000000000982000-memory.dmpFilesize
712KB
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memory/332-131-0x0000000005850000-0x0000000005DF4000-memory.dmpFilesize
5.6MB
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memory/332-132-0x00000000051F0000-0x0000000005282000-memory.dmpFilesize
584KB
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memory/332-133-0x00000000051E0000-0x00000000051EA000-memory.dmpFilesize
40KB
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memory/332-134-0x0000000008120000-0x00000000081BC000-memory.dmpFilesize
624KB
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memory/836-141-0x0000000000000000-mapping.dmp
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memory/3352-137-0x0000000000000000-mapping.dmp
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memory/3352-138-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/3352-139-0x0000000005C00000-0x0000000005C66000-memory.dmpFilesize
408KB
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memory/3352-140-0x00000000068E0000-0x0000000006930000-memory.dmpFilesize
320KB