Analysis
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max time kernel
138s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
11/01/2023, 08:25
Static task
static1
Behavioral task
behavioral1
Sample
INVOICE 359323.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
INVOICE 359323.exe
Resource
win10v2004-20220812-en
General
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Target
INVOICE 359323.exe
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Size
972KB
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MD5
f89999484cb2d1d844cc8b60dfb02c4f
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SHA1
1df0e3b1b65309537dabf25c2c94d8824109266c
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SHA256
5930c5866f8eed59c28ce8c986a3e44a289cfbb12a7a7197d2d6c6caad4cdb69
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SHA512
a08df86cdb284ad1e8101540ca0db6ccc1f82e78e7cedddff123a34a6108893eae133d7bb6311b6d49ff0b6c3ae22653de654c34adc8c2c5b5e8aecee4fc2d15
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SSDEEP
24576:k1dgWuuJ/Gmz4aiz/DJ5r2s21GZjpAx0WxGew:kMuJ/saiz7JB2VQR00Wxjw
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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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation INVOICE 359323.exe -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zBwkauB = "C:\\Users\\Admin\\AppData\\Roaming\\zBwkauB\\zBwkauB.exe" RegSvcs.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3912 set thread context of 5024 3912 INVOICE 359323.exe 88 -
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.
pid Process 4380 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3912 INVOICE 359323.exe 5024 RegSvcs.exe 5024 RegSvcs.exe 5024 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3912 INVOICE 359323.exe Token: SeDebugPrivilege 5024 RegSvcs.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 3912 wrote to memory of 4380 3912 INVOICE 359323.exe 86 PID 3912 wrote to memory of 4380 3912 INVOICE 359323.exe 86 PID 3912 wrote to memory of 4380 3912 INVOICE 359323.exe 86 PID 3912 wrote to memory of 5024 3912 INVOICE 359323.exe 88 PID 3912 wrote to memory of 5024 3912 INVOICE 359323.exe 88 PID 3912 wrote to memory of 5024 3912 INVOICE 359323.exe 88 PID 3912 wrote to memory of 5024 3912 INVOICE 359323.exe 88 PID 3912 wrote to memory of 5024 3912 INVOICE 359323.exe 88 PID 3912 wrote to memory of 5024 3912 INVOICE 359323.exe 88 PID 3912 wrote to memory of 5024 3912 INVOICE 359323.exe 88 PID 3912 wrote to memory of 5024 3912 INVOICE 359323.exe 88 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\INVOICE 359323.exe"C:\Users\Admin\AppData\Local\Temp\INVOICE 359323.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3912 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BIbVGIGlBns" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF5EE.tmp"2⤵
- Creates scheduled task(s)
PID:4380
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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:5024
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD50d68b98b9fcc22a39c4d886ddf5a22a9
SHA15db2c2ee3aea230ad8115f2ac8776ce1799fcd93
SHA25615affde276781840fa38a5be1de05c656813718ce878edbdd7bb982e5adeb062
SHA5128319082264b662120abebf68810159d6cbff95e13a7fe8b066babacf65e94502f2164837cfe0b9535d51cb693c7df77f6acbe8af476a0888d67a84b79b0b6829