Analysis
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max time kernel
135s -
max time network
122s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
27-07-2021 13:08
Static task
static1
Behavioral task
behavioral1
Sample
quotation.exe
Resource
win7v20210410
Behavioral task
behavioral2
Sample
quotation.exe
Resource
win10v20210410
General
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Target
quotation.exe
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Size
669KB
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MD5
8b0af96231dd7b5f99c1d51037dc0219
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SHA1
44e2961033d6dcf08c9eec519d4aba1f3f786f2c
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SHA256
0a4331bb70c63296d2f975bad0903c1c9c539c1f9d349a187bfaf2633b3c06e2
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SHA512
27933987bc28a37667aa7afac221ef242ebe5c5a8cc8c9ae55cde22dfd54dd4fb785a76d85510b74b44ff268875db95d000555b1c95db4567f1457f11faf7c1b
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.vivaldi.net - Port:
587 - Username:
vicanto@vivaldi.net - Password:
@GoodLogs@321
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 4 IoCs
Processes:
resource yara_rule behavioral2/memory/1524-124-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral2/memory/1524-125-0x000000000043758E-mapping.dmp family_agenttesla behavioral2/memory/1524-130-0x0000000004BD0000-0x00000000050CE000-memory.dmp family_agenttesla behavioral2/memory/1524-135-0x0000000004BD0000-0x00000000050CE000-memory.dmp family_agenttesla -
CustAttr .NET packer 1 IoCs
Detects CustAttr .NET packer in memory.
Processes:
resource yara_rule behavioral2/memory/3912-121-0x0000000004810000-0x000000000481B000-memory.dmp CustAttr -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
MSBuild.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\YYtJku = "C:\\Users\\Admin\\AppData\\Roaming\\YYtJku\\YYtJku.exe" MSBuild.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
quotation.exedescription pid process target process PID 3912 set thread context of 1524 3912 quotation.exe MSBuild.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
MSBuild.exepid process 1524 MSBuild.exe 1524 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
MSBuild.exedescription pid process Token: SeDebugPrivilege 1524 MSBuild.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
quotation.exedescription pid process target process PID 3912 wrote to memory of 1524 3912 quotation.exe MSBuild.exe PID 3912 wrote to memory of 1524 3912 quotation.exe MSBuild.exe PID 3912 wrote to memory of 1524 3912 quotation.exe MSBuild.exe PID 3912 wrote to memory of 1524 3912 quotation.exe MSBuild.exe PID 3912 wrote to memory of 1524 3912 quotation.exe MSBuild.exe PID 3912 wrote to memory of 1524 3912 quotation.exe MSBuild.exe PID 3912 wrote to memory of 1524 3912 quotation.exe MSBuild.exe PID 3912 wrote to memory of 1524 3912 quotation.exe MSBuild.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\quotation.exe"C:\Users\Admin\AppData\Local\Temp\quotation.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/1524-124-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/1524-135-0x0000000004BD0000-0x00000000050CE000-memory.dmpFilesize
5.0MB
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memory/1524-132-0x0000000005930000-0x0000000005931000-memory.dmpFilesize
4KB
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memory/1524-131-0x0000000005080000-0x0000000005081000-memory.dmpFilesize
4KB
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memory/1524-130-0x0000000004BD0000-0x00000000050CE000-memory.dmpFilesize
5.0MB
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memory/1524-125-0x000000000043758E-mapping.dmp
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memory/3912-118-0x0000000004F40000-0x0000000004F41000-memory.dmpFilesize
4KB
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memory/3912-122-0x00000000074B0000-0x000000000752E000-memory.dmpFilesize
504KB
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memory/3912-123-0x0000000007530000-0x000000000756D000-memory.dmpFilesize
244KB
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memory/3912-121-0x0000000004810000-0x000000000481B000-memory.dmpFilesize
44KB
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memory/3912-120-0x0000000004D20000-0x000000000521E000-memory.dmpFilesize
5.0MB
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memory/3912-119-0x0000000004DE0000-0x0000000004DE1000-memory.dmpFilesize
4KB
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memory/3912-114-0x0000000000510000-0x0000000000511000-memory.dmpFilesize
4KB
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memory/3912-117-0x0000000004E00000-0x0000000004E01000-memory.dmpFilesize
4KB
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memory/3912-116-0x0000000005220000-0x0000000005221000-memory.dmpFilesize
4KB