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Analysis
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max time kernel
112s -
max time network
143s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
16/10/2022, 11:23
Static task
static1
Behavioral task
behavioral1
Sample
INVOICE.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
INVOICE.exe
Resource
win10v2004-20220812-en
General
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Target
INVOICE.exe
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Size
924KB
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MD5
ef6a8631e2ef9254a647106872815787
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SHA1
9149ed25102187a42bf8668a1b0426e1be63bc4a
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SHA256
6f9a61bb7b17a4cb23733695d0c74ed1dff8d0645c2ee68f74b2cd6716baacd6
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SHA512
90dad9ee231a1b6fb9d057677a76f2aebb36c5cb3224634eec88826524423cb9cc5c1bd2dc5e7792cd9de0458999306799e201166c076854a60de62fbb3fbef8
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SSDEEP
12288:BiDg/A7YM21pisudT+i6Z0r7azvNvLBEet1imkRPuZb3TZj4ooHApUfrwY4p:Blppz67cvNFEU1imIq3ljfUfrwY4p
Malware Config
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Drops file in Drivers directory 1 IoCs
description ioc Process File opened for modification C:\Windows\system32\drivers\etc\hosts RegSvcs.exe -
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-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation INVOICE.exe -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\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-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\KFWOdr = "C:\\Users\\Admin\\AppData\\Roaming\\KFWOdr\\KFWOdr.exe" RegSvcs.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1692 set thread context of 2592 1692 INVOICE.exe 94 -
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 3052 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1692 INVOICE.exe 2592 RegSvcs.exe 2592 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1692 INVOICE.exe Token: SeDebugPrivilege 2592 RegSvcs.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 1692 wrote to memory of 3052 1692 INVOICE.exe 92 PID 1692 wrote to memory of 3052 1692 INVOICE.exe 92 PID 1692 wrote to memory of 3052 1692 INVOICE.exe 92 PID 1692 wrote to memory of 2592 1692 INVOICE.exe 94 PID 1692 wrote to memory of 2592 1692 INVOICE.exe 94 PID 1692 wrote to memory of 2592 1692 INVOICE.exe 94 PID 1692 wrote to memory of 2592 1692 INVOICE.exe 94 PID 1692 wrote to memory of 2592 1692 INVOICE.exe 94 PID 1692 wrote to memory of 2592 1692 INVOICE.exe 94 PID 1692 wrote to memory of 2592 1692 INVOICE.exe 94 PID 1692 wrote to memory of 2592 1692 INVOICE.exe 94 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\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.exe"C:\Users\Admin\AppData\Local\Temp\INVOICE.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1692 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\PiuhWRUjFj" /XML "C:\Users\Admin\AppData\Local\Temp\tmpED04.tmp"2⤵
- Creates scheduled task(s)
PID:3052
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"{path}"2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2592
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD51ff7a8f708d97576b5e487fc2575e29e
SHA199c1c7a3c7c17691e1eed89d30420224ab5ee705
SHA256d3f523afc2b65cb3d01c16cb41fc77f208affd824409a070fd020d1546a8ca5f
SHA512ae7a3f803f50ca2f364fce20b18ccb16ca1b30b6bd730599d9da0ba3c908dbb2f87a021e759e74f3f31c85bec92aaaab9468837f9637d3e809099d928d4f6bce