Analysis
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max time kernel
121s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
15/05/2024, 10:36
Static task
static1
Behavioral task
behavioral1
Sample
BL&CO.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
BL&CO.exe
Resource
win10v2004-20240508-en
General
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Target
BL&CO.exe
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Size
721KB
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MD5
35373ea173fb999636a21ad039ce4951
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SHA1
d477aa5c029736ca08b927935c901c5f53d454ff
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SHA256
3cf1272bbb24cd63faf26b69ab0eaeec8ce789a9e59030cfa79e40150d8ae286
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SHA512
83c8ff6bbede26092b21be38caa110d640ad48130ac5e8f48f84f18ede855e81da43420d49efcc905ddc7e448cb8a2f4ea6d2390edd69a878a305fda9b73b834
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SSDEEP
12288:mfTeH81jJUDu3+6fov6jk6Jl859MCzjDgC9h0LImZ1tzRI4aP/kR:38MDhyjk6J659M2j8tImVRii
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.azmaplast.com - Port:
587 - Username:
[email protected] - Password:
QAZqaz123@@ - Email To:
[email protected]
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 2612 powershell.exe 2692 powershell.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000\Software\Microsoft\Windows\CurrentVersion\Run\boqXv = "C:\\Users\\Admin\\AppData\\Roaming\\boqXv\\boqXv.exe" RegSvcs.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2032 set thread context of 2520 2032 BL&CO.exe 34 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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.
pid Process 2664 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 2032 BL&CO.exe 2032 BL&CO.exe 2032 BL&CO.exe 2032 BL&CO.exe 2520 RegSvcs.exe 2520 RegSvcs.exe 2692 powershell.exe 2612 powershell.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 2032 BL&CO.exe Token: SeDebugPrivilege 2520 RegSvcs.exe Token: SeDebugPrivilege 2692 powershell.exe Token: SeDebugPrivilege 2612 powershell.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 2032 wrote to memory of 2612 2032 BL&CO.exe 28 PID 2032 wrote to memory of 2612 2032 BL&CO.exe 28 PID 2032 wrote to memory of 2612 2032 BL&CO.exe 28 PID 2032 wrote to memory of 2612 2032 BL&CO.exe 28 PID 2032 wrote to memory of 2692 2032 BL&CO.exe 30 PID 2032 wrote to memory of 2692 2032 BL&CO.exe 30 PID 2032 wrote to memory of 2692 2032 BL&CO.exe 30 PID 2032 wrote to memory of 2692 2032 BL&CO.exe 30 PID 2032 wrote to memory of 2664 2032 BL&CO.exe 31 PID 2032 wrote to memory of 2664 2032 BL&CO.exe 31 PID 2032 wrote to memory of 2664 2032 BL&CO.exe 31 PID 2032 wrote to memory of 2664 2032 BL&CO.exe 31 PID 2032 wrote to memory of 2520 2032 BL&CO.exe 34 PID 2032 wrote to memory of 2520 2032 BL&CO.exe 34 PID 2032 wrote to memory of 2520 2032 BL&CO.exe 34 PID 2032 wrote to memory of 2520 2032 BL&CO.exe 34 PID 2032 wrote to memory of 2520 2032 BL&CO.exe 34 PID 2032 wrote to memory of 2520 2032 BL&CO.exe 34 PID 2032 wrote to memory of 2520 2032 BL&CO.exe 34 PID 2032 wrote to memory of 2520 2032 BL&CO.exe 34 PID 2032 wrote to memory of 2520 2032 BL&CO.exe 34 PID 2032 wrote to memory of 2520 2032 BL&CO.exe 34 PID 2032 wrote to memory of 2520 2032 BL&CO.exe 34 PID 2032 wrote to memory of 2520 2032 BL&CO.exe 34
Processes
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C:\Users\Admin\AppData\Local\Temp\BL&CO.exe"C:\Users\Admin\AppData\Local\Temp\BL&CO.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2032 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\BL&CO.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2612
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ClBZCJCLlsf.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2692
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ClBZCJCLlsf" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5928.tmp"2⤵
- Creates scheduled task(s)
PID:2664
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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⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2520
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD5cc630b46d5e61ddc7d0a3b9278cea657
SHA1cd8737bb888ed5f0428ef1507b76d62f37203b0a
SHA25659cbc30640fd0da2b25032455eff4df69244de1517f7bdc63d1f7011b63a1cf1
SHA5121b6a3b1f078cd323ab54bef98c9be2f63a5a960b1b926a4feee8c9ea9baa110c6aaff9ffa8772c56d63fb12694849ec0277cde7cb04858e4165dae1e7c0642c8
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\6I1THCFS0RSEQQQB97LS.temp
Filesize7KB
MD513ddf8387321f2b868a64e13c990ed33
SHA14ff24f5342137b42adca933d430cb1e38c8646e3
SHA2565d5eeef0f9bf3ebb0c42d0348fe91983e4cb7f5ca083e2916c8b59597f518436
SHA512d573a6b559e6770ea9534be55806942c0386cc749de718a898476ef80b7168445ec1134c8cea48425453a9c9f3f250f8f0fc554c41875dbc398792ec4d5db209