Analysis
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max time kernel
144s -
max time network
49s -
platform
windows7_x64 -
resource
win7-20220414-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 6 IoCs
Processes:
resource yara_rule behavioral1/memory/1520-64-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1520-65-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1520-66-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1520-67-0x000000000044748E-mapping.dmp family_agenttesla behavioral1/memory/1520-69-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1520-71-0x0000000000400000-0x000000000044C000-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 -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
RegSvcs.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\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-1-5-21-790309383-526510583-3802439154-1000\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 848 set thread context of 1520 848 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 5 IoCs
Processes:
SOA.exeRegSvcs.exepid process 848 SOA.exe 848 SOA.exe 848 SOA.exe 1520 RegSvcs.exe 1520 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
SOA.exeRegSvcs.exedescription pid process Token: SeDebugPrivilege 848 SOA.exe Token: SeDebugPrivilege 1520 RegSvcs.exe -
Suspicious use of WriteProcessMemory 20 IoCs
Processes:
SOA.exeRegSvcs.exedescription pid process target process PID 848 wrote to memory of 1764 848 SOA.exe schtasks.exe PID 848 wrote to memory of 1764 848 SOA.exe schtasks.exe PID 848 wrote to memory of 1764 848 SOA.exe schtasks.exe PID 848 wrote to memory of 1764 848 SOA.exe schtasks.exe PID 848 wrote to memory of 1520 848 SOA.exe RegSvcs.exe PID 848 wrote to memory of 1520 848 SOA.exe RegSvcs.exe PID 848 wrote to memory of 1520 848 SOA.exe RegSvcs.exe PID 848 wrote to memory of 1520 848 SOA.exe RegSvcs.exe PID 848 wrote to memory of 1520 848 SOA.exe RegSvcs.exe PID 848 wrote to memory of 1520 848 SOA.exe RegSvcs.exe PID 848 wrote to memory of 1520 848 SOA.exe RegSvcs.exe PID 848 wrote to memory of 1520 848 SOA.exe RegSvcs.exe PID 848 wrote to memory of 1520 848 SOA.exe RegSvcs.exe PID 848 wrote to memory of 1520 848 SOA.exe RegSvcs.exe PID 848 wrote to memory of 1520 848 SOA.exe RegSvcs.exe PID 848 wrote to memory of 1520 848 SOA.exe RegSvcs.exe PID 1520 wrote to memory of 1444 1520 RegSvcs.exe REG.exe PID 1520 wrote to memory of 1444 1520 RegSvcs.exe REG.exe PID 1520 wrote to memory of 1444 1520 RegSvcs.exe REG.exe PID 1520 wrote to memory of 1444 1520 RegSvcs.exe REG.exe -
outlook_office_path 1 IoCs
Processes:
RegSvcs.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\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-1-5-21-790309383-526510583-3802439154-1000\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⤵
- 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\tmp2379.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\tmp2379.tmpFilesize
1KB
MD553c2b186bbcc0b8c7645746fbf08d54f
SHA1e4b63a705284810b2718c5fc6bf5c3a12d7cfa46
SHA256ddbf6facfaae1928b7743f00b1159ee131566ba3bf58ade1c21d070520890efe
SHA5120802438d751b2fea9b909254a4066dffd518136fdd4d56c895595e51216aa699270fc0559164ec0d786ecdbb9332121c76551d228d30cafc62fa375c924462d5
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memory/848-54-0x0000000000C50000-0x0000000000D02000-memory.dmpFilesize
712KB
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memory/848-55-0x0000000075951000-0x0000000075953000-memory.dmpFilesize
8KB
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memory/848-56-0x0000000000610000-0x0000000000620000-memory.dmpFilesize
64KB
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memory/848-57-0x0000000004F30000-0x0000000004F98000-memory.dmpFilesize
416KB
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memory/848-58-0x00000000050D0000-0x000000000511C000-memory.dmpFilesize
304KB
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memory/1444-73-0x0000000000000000-mapping.dmp
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memory/1520-62-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/1520-61-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/1520-64-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/1520-65-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/1520-66-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/1520-67-0x000000000044748E-mapping.dmp
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memory/1520-69-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/1520-71-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/1764-59-0x0000000000000000-mapping.dmp