Analysis
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max time kernel
72s -
max time network
49s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
07-12-2022 14:20
Static task
static1
Behavioral task
behavioral1
Sample
baa6318542fec07e6a7ee6bbdccbfa99519c4b76fe6d57bf573c6d33d943db9a.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
baa6318542fec07e6a7ee6bbdccbfa99519c4b76fe6d57bf573c6d33d943db9a.exe
Resource
win10v2004-20221111-en
General
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Target
baa6318542fec07e6a7ee6bbdccbfa99519c4b76fe6d57bf573c6d33d943db9a.exe
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Size
734KB
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MD5
b66de3f2760e8eba638193617f873f7a
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SHA1
875b014ee18bd2e367a2b3b196f9967ab50e704e
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SHA256
baa6318542fec07e6a7ee6bbdccbfa99519c4b76fe6d57bf573c6d33d943db9a
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SHA512
5bb89eb439361cc2ad6c52f7e2aad89c61463b04cfbd96541ebb23843f8b783ad2830c233d77002ce961fa7c2fb5d8c9b4517128a203b0df4e04400ca8683dc3
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SSDEEP
12288:WKldyk92iNQjUvLlEKAOdt4tsv3OYiXRa312hWnHUqNuFDD234yNStvwLUkQBe3t:ByQ1VvLdAOQ4lm2LkFD/y6IFEwmA
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.dmstech.in - Port:
587 - Username:
[email protected] - Password:
0]6F9Az.pqfd - 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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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
RegSvcs.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\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-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\zBwkauB = "C:\\Users\\Admin\\AppData\\Roaming\\zBwkauB\\zBwkauB.exe" RegSvcs.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
baa6318542fec07e6a7ee6bbdccbfa99519c4b76fe6d57bf573c6d33d943db9a.exedescription pid process target process PID 1048 set thread context of 268 1048 baa6318542fec07e6a7ee6bbdccbfa99519c4b76fe6d57bf573c6d33d943db9a.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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Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
RegSvcs.exepid process 268 RegSvcs.exe 268 RegSvcs.exe 268 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
baa6318542fec07e6a7ee6bbdccbfa99519c4b76fe6d57bf573c6d33d943db9a.exeRegSvcs.exedescription pid process Token: SeDebugPrivilege 1048 baa6318542fec07e6a7ee6bbdccbfa99519c4b76fe6d57bf573c6d33d943db9a.exe Token: SeDebugPrivilege 268 RegSvcs.exe -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
baa6318542fec07e6a7ee6bbdccbfa99519c4b76fe6d57bf573c6d33d943db9a.exedescription pid process target process PID 1048 wrote to memory of 1380 1048 baa6318542fec07e6a7ee6bbdccbfa99519c4b76fe6d57bf573c6d33d943db9a.exe schtasks.exe PID 1048 wrote to memory of 1380 1048 baa6318542fec07e6a7ee6bbdccbfa99519c4b76fe6d57bf573c6d33d943db9a.exe schtasks.exe PID 1048 wrote to memory of 1380 1048 baa6318542fec07e6a7ee6bbdccbfa99519c4b76fe6d57bf573c6d33d943db9a.exe schtasks.exe PID 1048 wrote to memory of 1380 1048 baa6318542fec07e6a7ee6bbdccbfa99519c4b76fe6d57bf573c6d33d943db9a.exe schtasks.exe PID 1048 wrote to memory of 268 1048 baa6318542fec07e6a7ee6bbdccbfa99519c4b76fe6d57bf573c6d33d943db9a.exe RegSvcs.exe PID 1048 wrote to memory of 268 1048 baa6318542fec07e6a7ee6bbdccbfa99519c4b76fe6d57bf573c6d33d943db9a.exe RegSvcs.exe PID 1048 wrote to memory of 268 1048 baa6318542fec07e6a7ee6bbdccbfa99519c4b76fe6d57bf573c6d33d943db9a.exe RegSvcs.exe PID 1048 wrote to memory of 268 1048 baa6318542fec07e6a7ee6bbdccbfa99519c4b76fe6d57bf573c6d33d943db9a.exe RegSvcs.exe PID 1048 wrote to memory of 268 1048 baa6318542fec07e6a7ee6bbdccbfa99519c4b76fe6d57bf573c6d33d943db9a.exe RegSvcs.exe PID 1048 wrote to memory of 268 1048 baa6318542fec07e6a7ee6bbdccbfa99519c4b76fe6d57bf573c6d33d943db9a.exe RegSvcs.exe PID 1048 wrote to memory of 268 1048 baa6318542fec07e6a7ee6bbdccbfa99519c4b76fe6d57bf573c6d33d943db9a.exe RegSvcs.exe PID 1048 wrote to memory of 268 1048 baa6318542fec07e6a7ee6bbdccbfa99519c4b76fe6d57bf573c6d33d943db9a.exe RegSvcs.exe PID 1048 wrote to memory of 268 1048 baa6318542fec07e6a7ee6bbdccbfa99519c4b76fe6d57bf573c6d33d943db9a.exe RegSvcs.exe PID 1048 wrote to memory of 268 1048 baa6318542fec07e6a7ee6bbdccbfa99519c4b76fe6d57bf573c6d33d943db9a.exe RegSvcs.exe PID 1048 wrote to memory of 268 1048 baa6318542fec07e6a7ee6bbdccbfa99519c4b76fe6d57bf573c6d33d943db9a.exe RegSvcs.exe PID 1048 wrote to memory of 268 1048 baa6318542fec07e6a7ee6bbdccbfa99519c4b76fe6d57bf573c6d33d943db9a.exe RegSvcs.exe -
outlook_office_path 1 IoCs
Processes:
RegSvcs.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\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-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\baa6318542fec07e6a7ee6bbdccbfa99519c4b76fe6d57bf573c6d33d943db9a.exe"C:\Users\Admin\AppData\Local\Temp\baa6318542fec07e6a7ee6bbdccbfa99519c4b76fe6d57bf573c6d33d943db9a.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1048 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HUczKJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8891.tmp"2⤵
- Creates scheduled task(s)
PID:1380
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:268
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD56f8638c41acb38772d3de37ca21cabdb
SHA1d6a653e2ceee6e176ed74e0c5e61d8a7c9acd4bf
SHA2564395aa46c7052369094528928920a379591f48466fd1563d977b6710cab5adae
SHA512eeba50888c92d43170b42e6d7201f93de7a630284d6730e3164db79be9e369695dec2f49f0e07716c4bc4abf234209f96003ba532df0bb727298e0cb77ead2fb