Analysis
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max time kernel
139s -
max time network
124s -
platform
windows10_x64 -
resource
win10-en-20211014 -
submitted
25-10-2021 12:40
Static task
static1
Behavioral task
behavioral1
Sample
PDA.exe
Resource
win7-en-20210920
Behavioral task
behavioral2
Sample
PDA.exe
Resource
win10-en-20211014
General
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Target
PDA.exe
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Size
963KB
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MD5
378d5f97d0e28d2ead7fed9dc4abb798
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SHA1
72370ce75aaf466bc048e00a108ecb8126ffc80b
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SHA256
780de7b808b5dba8e6ef57a82e264dcbbbdc2f63de3ef6683c8627bd177c5103
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SHA512
0bceb95865026c1d9d8fe0df72760acbaf5c5729f11652cd9c8469076f07264545fe08519c45a2d020b99e5ddb2a43fff8a3e04e51bfb7bc0d055d79b415afa4
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
webmail.fllid.com - Port:
587 - Username:
[email protected] - Password:
ImbangFll
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 3 IoCs
Processes:
resource yara_rule behavioral2/memory/504-130-0x0000000000400000-0x0000000000470000-memory.dmp family_agenttesla behavioral2/memory/504-131-0x00000000004379FE-mapping.dmp family_agenttesla behavioral2/memory/504-136-0x00000000050C0000-0x00000000055BE000-memory.dmp family_agenttesla -
Drops file in Drivers directory 1 IoCs
Processes:
RegSvcs.exedescription ioc process File opened for modification C:\Windows\system32\drivers\etc\hosts RegSvcs.exe -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
RegSvcs.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\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-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows\CurrentVersion\Run\HjYArO = "C:\\Users\\Admin\\AppData\\Roaming\\HjYArO\\HjYArO.exe" RegSvcs.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
PDA.exedescription pid process target process PID 4324 set thread context of 504 4324 PDA.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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Processes:
PDA.exedescription ioc process Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\AFE5D244A8D1194230FF479FE2F897BBCD7A8CB4\Blob = 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 PDA.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\AFE5D244A8D1194230FF479FE2F897BBCD7A8CB4 PDA.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
RegSvcs.exepid process 504 RegSvcs.exe 504 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
PDA.exeRegSvcs.exedescription pid process Token: SeDebugPrivilege 4324 PDA.exe Token: SeDebugPrivilege 504 RegSvcs.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
PDA.exepid process 4324 PDA.exe 4324 PDA.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
PDA.exedescription pid process target process PID 4324 wrote to memory of 668 4324 PDA.exe schtasks.exe PID 4324 wrote to memory of 668 4324 PDA.exe schtasks.exe PID 4324 wrote to memory of 668 4324 PDA.exe schtasks.exe PID 4324 wrote to memory of 504 4324 PDA.exe RegSvcs.exe PID 4324 wrote to memory of 504 4324 PDA.exe RegSvcs.exe PID 4324 wrote to memory of 504 4324 PDA.exe RegSvcs.exe PID 4324 wrote to memory of 504 4324 PDA.exe RegSvcs.exe PID 4324 wrote to memory of 504 4324 PDA.exe RegSvcs.exe PID 4324 wrote to memory of 504 4324 PDA.exe RegSvcs.exe PID 4324 wrote to memory of 504 4324 PDA.exe RegSvcs.exe PID 4324 wrote to memory of 504 4324 PDA.exe RegSvcs.exe -
outlook_office_path 1 IoCs
Processes:
RegSvcs.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\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-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\PDA.exe"C:\Users\Admin\AppData\Local\Temp\PDA.exe"1⤵
- Suspicious use of SetThreadContext
- Modifies system certificate store
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4324 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fChjuz" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6CA0.tmp"2⤵
- Creates scheduled task(s)
PID:668 -
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:504
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\tmp6CA0.tmpMD5
2c4594d5e3eda96a2e0249b8135edb49
SHA1a118f74bbb0ced3ba937a673f5207f632309bcc4
SHA25611ba5903cb098589cd553d6b2e347840f7260213bea2480d554be0c5c6b1bf79
SHA5125a139a278e05e75f7b9ba448dd3986c4bdbe2464664696e2cd276e3606009d83e6d158aa9fc1c98591d22f144d4a3020f194b0052aa38b6f132f70aaddba8e9b
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memory/504-141-0x00000000050C0000-0x00000000055BE000-memory.dmpFilesize
5.0MB
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memory/504-138-0x0000000005E40000-0x0000000005E41000-memory.dmpFilesize
4KB
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memory/504-137-0x0000000005DB0000-0x0000000005DB1000-memory.dmpFilesize
4KB
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memory/504-136-0x00000000050C0000-0x00000000055BE000-memory.dmpFilesize
5.0MB
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memory/504-131-0x00000000004379FE-mapping.dmp
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memory/504-130-0x0000000000400000-0x0000000000470000-memory.dmpFilesize
448KB
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memory/668-128-0x0000000000000000-mapping.dmp
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memory/4324-121-0x0000000004B10000-0x000000000500E000-memory.dmpFilesize
5.0MB
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memory/4324-125-0x0000000008D50000-0x0000000008D5E000-memory.dmpFilesize
56KB
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memory/4324-126-0x00000000097E0000-0x0000000009877000-memory.dmpFilesize
604KB
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memory/4324-127-0x000000000BF90000-0x000000000BFFC000-memory.dmpFilesize
432KB
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memory/4324-124-0x0000000004B10000-0x000000000500E000-memory.dmpFilesize
5.0MB
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memory/4324-123-0x0000000004B10000-0x000000000500E000-memory.dmpFilesize
5.0MB
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memory/4324-122-0x0000000004D70000-0x0000000004D71000-memory.dmpFilesize
4KB
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memory/4324-115-0x0000000000040000-0x0000000000041000-memory.dmpFilesize
4KB
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memory/4324-120-0x0000000004B30000-0x0000000004B31000-memory.dmpFilesize
4KB
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memory/4324-119-0x0000000004BB0000-0x0000000004BB1000-memory.dmpFilesize
4KB
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memory/4324-118-0x0000000005010000-0x0000000005011000-memory.dmpFilesize
4KB
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memory/4324-117-0x0000000004A70000-0x0000000004A71000-memory.dmpFilesize
4KB