Analysis
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max time kernel
144s -
max time network
42s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21-05-2022 12:06
Static task
static1
Behavioral task
behavioral1
Sample
1604228P.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
1604228P.exe
Resource
win10v2004-20220414-en
General
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Target
1604228P.exe
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Size
802KB
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MD5
c5c2e7ed751bf5a92f4db09770c36233
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SHA1
34d5f8d03829f0150d2900ffc8a899bfce4724f5
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SHA256
57dcf40358fb6f41a6b1e68d380f85db9aa67481f25fa8df5a56e8ae5ec36eb5
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SHA512
dae1a77e9c90ebe6373078660e0642a8c6686cf6deb5396a4d58281f1c15d7925d2b258c345e62f321502d3fb96c88b03727fafaddf12b82fafb77dbccffb40d
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.dogulumetal.com - Port:
587 - Username:
[email protected] - Password:
DMaslak2950**
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 6 IoCs
Processes:
resource yara_rule behavioral1/memory/1712-64-0x0000000000400000-0x0000000000458000-memory.dmp family_agenttesla behavioral1/memory/1712-65-0x0000000000400000-0x0000000000458000-memory.dmp family_agenttesla behavioral1/memory/1712-67-0x000000000045345E-mapping.dmp family_agenttesla behavioral1/memory/1712-66-0x0000000000400000-0x0000000000458000-memory.dmp family_agenttesla behavioral1/memory/1712-69-0x0000000000400000-0x0000000000458000-memory.dmp family_agenttesla behavioral1/memory/1712-71-0x0000000000400000-0x0000000000458000-memory.dmp family_agenttesla -
Looks for VirtualBox Guest Additions in registry 2 TTPs
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Looks for VMWare Tools registry key 2 TTPs
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Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
1604228P.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 1604228P.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 1604228P.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
1604228P.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 1604228P.exe Key opened \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 1604228P.exe Key opened \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 1604228P.exe -
Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
Processes:
1604228P.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum 1604228P.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 1604228P.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
1604228P.exedescription pid process target process PID 1240 set thread context of 1712 1240 1604228P.exe 1604228P.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 2 IoCs
Processes:
1604228P.exepid process 1712 1604228P.exe 1712 1604228P.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
1604228P.exedescription pid process Token: SeDebugPrivilege 1712 1604228P.exe -
Suspicious use of WriteProcessMemory 13 IoCs
Processes:
1604228P.exedescription pid process target process PID 1240 wrote to memory of 1864 1240 1604228P.exe schtasks.exe PID 1240 wrote to memory of 1864 1240 1604228P.exe schtasks.exe PID 1240 wrote to memory of 1864 1240 1604228P.exe schtasks.exe PID 1240 wrote to memory of 1864 1240 1604228P.exe schtasks.exe PID 1240 wrote to memory of 1712 1240 1604228P.exe 1604228P.exe PID 1240 wrote to memory of 1712 1240 1604228P.exe 1604228P.exe PID 1240 wrote to memory of 1712 1240 1604228P.exe 1604228P.exe PID 1240 wrote to memory of 1712 1240 1604228P.exe 1604228P.exe PID 1240 wrote to memory of 1712 1240 1604228P.exe 1604228P.exe PID 1240 wrote to memory of 1712 1240 1604228P.exe 1604228P.exe PID 1240 wrote to memory of 1712 1240 1604228P.exe 1604228P.exe PID 1240 wrote to memory of 1712 1240 1604228P.exe 1604228P.exe PID 1240 wrote to memory of 1712 1240 1604228P.exe 1604228P.exe -
outlook_office_path 1 IoCs
Processes:
1604228P.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 1604228P.exe -
outlook_win_path 1 IoCs
Processes:
1604228P.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 1604228P.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\1604228P.exe"C:\Users\Admin\AppData\Local\Temp\1604228P.exe"1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1240 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\letIbjSupJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4319.tmp"2⤵
- Creates scheduled task(s)
PID:1864 -
C:\Users\Admin\AppData\Local\Temp\1604228P.exe"C:\Users\Admin\AppData\Local\Temp\1604228P.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1712
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\tmp4319.tmpFilesize
1KB
MD5803f1d875b59d730cb0538dbcf0fe74f
SHA13e089499046257ef96cea37dc4b79f891d286459
SHA25674f82d28d18139ef8708df6d09ffc789497686697c590e77228ceceeac6777e7
SHA5122d8dbc0e8d5ea259a557b55c4453d41559bee4f4c6dc15c11adb25cced9ab3007f663fe3850b1459d866fc3cbb1e79be26f0b2c9f7f279f2980acc8ff45f5ce0
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memory/1240-57-0x0000000005410000-0x00000000054A6000-memory.dmpFilesize
600KB
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memory/1240-55-0x00000000753E1000-0x00000000753E3000-memory.dmpFilesize
8KB
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memory/1240-54-0x0000000000E40000-0x0000000000F0E000-memory.dmpFilesize
824KB
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memory/1240-58-0x00000000056E0000-0x0000000005748000-memory.dmpFilesize
416KB
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memory/1240-56-0x0000000000530000-0x0000000000540000-memory.dmpFilesize
64KB
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memory/1712-67-0x000000000045345E-mapping.dmp
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memory/1712-61-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/1712-62-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/1712-64-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/1712-65-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/1712-66-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/1712-69-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/1712-71-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/1864-59-0x0000000000000000-mapping.dmp