Analysis
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max time kernel
145s -
max time network
33s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
02-12-2022 08:36
Static task
static1
Behavioral task
behavioral1
Sample
Commercial Invoice.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
Commercial Invoice.exe
Resource
win10v2004-20221111-en
General
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Target
Commercial Invoice.exe
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Size
979KB
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MD5
b5a0914788f8416e6dabdf9b429dc11c
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SHA1
6d16e1f6412532e51d75cadaa8fa69eee4292574
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SHA256
97c28174a64eab003f2a1b2f4a742acbcbb8394249d136d176c19711908da21a
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SHA512
7e87a469c196df7a6cf51c944463e9c49803b121f940f32186cdde4019e8adcc6369bd15ec7324ad0a3191e13edc6886e331f3a5f64e630f103a378b4e3841e9
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SSDEEP
12288:BpUYuX15nN8eY+ceSigcvnvlVQjL9QzX7BIBi8pV4VpQWsNTAzc1NfpHsVfdcn:Cl5W+SM34jJQ5B8pnzTccOI
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-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\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-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\zBwkauB = "C:\\Users\\Admin\\AppData\\Roaming\\zBwkauB\\zBwkauB.exe" RegSvcs.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Commercial Invoice.exedescription pid process target process PID 1980 set thread context of 1172 1980 Commercial Invoice.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 4 IoCs
Processes:
Commercial Invoice.exeRegSvcs.exepid process 1980 Commercial Invoice.exe 1172 RegSvcs.exe 1172 RegSvcs.exe 1172 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
Commercial Invoice.exeRegSvcs.exedescription pid process Token: SeDebugPrivilege 1980 Commercial Invoice.exe Token: SeDebugPrivilege 1172 RegSvcs.exe -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
Commercial Invoice.exedescription pid process target process PID 1980 wrote to memory of 896 1980 Commercial Invoice.exe schtasks.exe PID 1980 wrote to memory of 896 1980 Commercial Invoice.exe schtasks.exe PID 1980 wrote to memory of 896 1980 Commercial Invoice.exe schtasks.exe PID 1980 wrote to memory of 896 1980 Commercial Invoice.exe schtasks.exe PID 1980 wrote to memory of 1172 1980 Commercial Invoice.exe RegSvcs.exe PID 1980 wrote to memory of 1172 1980 Commercial Invoice.exe RegSvcs.exe PID 1980 wrote to memory of 1172 1980 Commercial Invoice.exe RegSvcs.exe PID 1980 wrote to memory of 1172 1980 Commercial Invoice.exe RegSvcs.exe PID 1980 wrote to memory of 1172 1980 Commercial Invoice.exe RegSvcs.exe PID 1980 wrote to memory of 1172 1980 Commercial Invoice.exe RegSvcs.exe PID 1980 wrote to memory of 1172 1980 Commercial Invoice.exe RegSvcs.exe PID 1980 wrote to memory of 1172 1980 Commercial Invoice.exe RegSvcs.exe PID 1980 wrote to memory of 1172 1980 Commercial Invoice.exe RegSvcs.exe PID 1980 wrote to memory of 1172 1980 Commercial Invoice.exe RegSvcs.exe PID 1980 wrote to memory of 1172 1980 Commercial Invoice.exe RegSvcs.exe PID 1980 wrote to memory of 1172 1980 Commercial Invoice.exe RegSvcs.exe -
outlook_office_path 1 IoCs
Processes:
RegSvcs.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\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-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Commercial Invoice.exe"C:\Users\Admin\AppData\Local\Temp\Commercial Invoice.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1980 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dgmJRFXvDO" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAAD1.tmp"2⤵
- Creates scheduled task(s)
PID:896 -
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:1172
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD50349ac88eb9ecc95b9419518e5173071
SHA18a8919c40a765f7a1d5873c48924315f9a2a6c1a
SHA256a6359a3ef8c1d18205979d8869d2e50911a0d7d062b65ee7651ab94d6c1a99c5
SHA5128959a98bd8ce978c193088d3dd386fa9a6eb397d5666f46295dd70d7457f0b2c302de39b1be0c8aabc76de1e3ba5e0731d2104f0b6f9718bcb94d0e9f288ccd9