Analysis
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max time kernel
178s -
max time network
190s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
21-05-2022 12:43
Static task
static1
Behavioral task
behavioral1
Sample
Payment Invoice-.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
Payment Invoice-.exe
Resource
win10v2004-20220414-en
General
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Target
Payment Invoice-.exe
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Size
417KB
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MD5
0657f318a479e4ef02b4eb081ae1f8a4
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SHA1
dbb0026898b304f2b90347e9240a9a39514a4936
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SHA256
be21fe83f9230cc17ae46dc93ef917972b39f41da97ee9dfcd75099fc1b2b65d
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SHA512
7fec8f109d68b7b3ad1f76b3aef53ff02b37258d028b0f4ecbb748821f9b128308fc6094cbb403e787bbc71219c4f03ce9d028bc6c793b362c3a2f42c2f59506
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.saamaygroup.com - Port:
587 - Username:
ashimdutta@saamaygroup.com - Password:
pawan100
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/4912-135-0x0000000000400000-0x000000000044C000-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-1-5-21-3751123196-3323558407-1869646069-1000\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\CpSnJ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\CpSnJ\\CpSnJ.exe" RegSvcs.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Payment Invoice-.exedescription pid process target process PID 1192 set thread context of 4912 1192 Payment Invoice-.exe RegSvcs.exe -
Modifies registry key 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
RegSvcs.exepid process 4912 RegSvcs.exe 4912 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
RegSvcs.exedescription pid process Token: SeDebugPrivilege 4912 RegSvcs.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
Payment Invoice-.exeRegSvcs.exedescription pid process target process PID 1192 wrote to memory of 4912 1192 Payment Invoice-.exe RegSvcs.exe PID 1192 wrote to memory of 4912 1192 Payment Invoice-.exe RegSvcs.exe PID 1192 wrote to memory of 4912 1192 Payment Invoice-.exe RegSvcs.exe PID 1192 wrote to memory of 4912 1192 Payment Invoice-.exe RegSvcs.exe PID 1192 wrote to memory of 4912 1192 Payment Invoice-.exe RegSvcs.exe PID 1192 wrote to memory of 4912 1192 Payment Invoice-.exe RegSvcs.exe PID 1192 wrote to memory of 4912 1192 Payment Invoice-.exe RegSvcs.exe PID 1192 wrote to memory of 4912 1192 Payment Invoice-.exe RegSvcs.exe PID 4912 wrote to memory of 2740 4912 RegSvcs.exe REG.exe PID 4912 wrote to memory of 2740 4912 RegSvcs.exe REG.exe PID 4912 wrote to memory of 2740 4912 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\Payment Invoice-.exe"C:\Users\Admin\AppData\Local\Temp\Payment Invoice-.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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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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memory/1192-130-0x0000000000140000-0x00000000001AE000-memory.dmpFilesize
440KB
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memory/1192-131-0x0000000005060000-0x0000000005604000-memory.dmpFilesize
5.6MB
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memory/1192-132-0x00000000049F0000-0x0000000004A82000-memory.dmpFilesize
584KB
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memory/1192-133-0x00000000058E0000-0x000000000597C000-memory.dmpFilesize
624KB
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memory/2740-138-0x0000000000000000-mapping.dmp
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memory/4912-134-0x0000000000000000-mapping.dmp
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memory/4912-135-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/4912-136-0x0000000005E70000-0x0000000005ED6000-memory.dmpFilesize
408KB
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memory/4912-137-0x00000000062D0000-0x0000000006320000-memory.dmpFilesize
320KB
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memory/4912-139-0x0000000006320000-0x000000000632A000-memory.dmpFilesize
40KB