Analysis
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max time kernel
150s -
max time network
69s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
11-05-2021 12:46
Static task
static1
Behavioral task
behavioral1
Sample
Payment Advice.exe
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
Payment Advice.exe
Resource
win10v20210410
windows10_x64
0 signatures
0 seconds
General
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Target
Payment Advice.exe
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Size
1.1MB
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MD5
e6fd86b4d700cf206695b3bc5d37401a
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SHA1
967a7f18033fdfdae7d6768c4adbe8573e065a83
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SHA256
9f5246d9c9dc30f30f1ad1ffaa3e3a5e4b81f51d2b9059527190cd3a55523eb1
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SHA512
f22097cf9952e040152f470e7d21315e3444546cb2bfa6e7f0f8a46599f026107534208e44fcf3b6e47ad65924570b5736f1cbc4ee839edfa32f510adc845608
Malware Config
Extracted
Family
agenttesla
Credentials
Protocol: smtp- Host:
mail.amarantbg.com - Port:
587 - Username:
office@amarantbg.com - Password:
Office123
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/2404-125-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral2/memory/2404-126-0x000000000043765E-mapping.dmp family_agenttesla behavioral2/memory/2404-131-0x0000000005570000-0x0000000005A6E000-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 -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
RegSvcs.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\zfsGyb = "C:\\Users\\Admin\\AppData\\Roaming\\zfsGyb\\zfsGyb.exe" RegSvcs.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Payment Advice.exedescription pid process target process PID 1884 set thread context of 2404 1884 Payment Advice.exe RegSvcs.exe -
Suspicious behavior: EnumeratesProcesses 7 IoCs
Processes:
Payment Advice.exeRegSvcs.exepid process 1884 Payment Advice.exe 1884 Payment Advice.exe 1884 Payment Advice.exe 1884 Payment Advice.exe 1884 Payment Advice.exe 2404 RegSvcs.exe 2404 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
Payment Advice.exeRegSvcs.exedescription pid process Token: SeDebugPrivilege 1884 Payment Advice.exe Token: SeDebugPrivilege 2404 RegSvcs.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
Payment Advice.exedescription pid process target process PID 1884 wrote to memory of 3504 1884 Payment Advice.exe RegSvcs.exe PID 1884 wrote to memory of 3504 1884 Payment Advice.exe RegSvcs.exe PID 1884 wrote to memory of 3504 1884 Payment Advice.exe RegSvcs.exe PID 1884 wrote to memory of 3732 1884 Payment Advice.exe RegSvcs.exe PID 1884 wrote to memory of 3732 1884 Payment Advice.exe RegSvcs.exe PID 1884 wrote to memory of 3732 1884 Payment Advice.exe RegSvcs.exe PID 1884 wrote to memory of 2404 1884 Payment Advice.exe RegSvcs.exe PID 1884 wrote to memory of 2404 1884 Payment Advice.exe RegSvcs.exe PID 1884 wrote to memory of 2404 1884 Payment Advice.exe RegSvcs.exe PID 1884 wrote to memory of 2404 1884 Payment Advice.exe RegSvcs.exe PID 1884 wrote to memory of 2404 1884 Payment Advice.exe RegSvcs.exe PID 1884 wrote to memory of 2404 1884 Payment Advice.exe RegSvcs.exe PID 1884 wrote to memory of 2404 1884 Payment Advice.exe RegSvcs.exe PID 1884 wrote to memory of 2404 1884 Payment Advice.exe RegSvcs.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Payment Advice.exe"C:\Users\Admin\AppData\Local\Temp\Payment Advice.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- 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⤵
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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
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/1884-114-0x00000000002F0000-0x00000000002F1000-memory.dmpFilesize
4KB
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memory/1884-116-0x00000000071E0000-0x00000000071E1000-memory.dmpFilesize
4KB
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memory/1884-117-0x0000000007780000-0x0000000007781000-memory.dmpFilesize
4KB
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memory/1884-118-0x0000000007280000-0x0000000007281000-memory.dmpFilesize
4KB
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memory/1884-119-0x0000000007280000-0x000000000777E000-memory.dmpFilesize
5.0MB
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memory/1884-120-0x0000000004C70000-0x0000000004C71000-memory.dmpFilesize
4KB
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memory/1884-121-0x00000000073E0000-0x00000000073E1000-memory.dmpFilesize
4KB
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memory/1884-122-0x00000000071D0000-0x00000000071D4000-memory.dmpFilesize
16KB
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memory/1884-123-0x00000000076B0000-0x0000000007779000-memory.dmpFilesize
804KB
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memory/1884-124-0x000000000B410000-0x000000000B4A0000-memory.dmpFilesize
576KB
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memory/2404-125-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/2404-126-0x000000000043765E-mapping.dmp
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memory/2404-131-0x0000000005570000-0x0000000005A6E000-memory.dmpFilesize
5.0MB
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memory/2404-132-0x00000000059F0000-0x00000000059F1000-memory.dmpFilesize
4KB
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memory/2404-133-0x00000000062D0000-0x00000000062D1000-memory.dmpFilesize
4KB