Analysis
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max time kernel
146s -
max time network
122s -
platform
windows10_x64 -
resource
win10-en-20211014 -
submitted
23-10-2021 08:26
Static task
static1
Behavioral task
behavioral1
Sample
c13206d0.exe
Resource
win7-en-20210920
Behavioral task
behavioral2
Sample
c13206d0.exe
Resource
win10-en-20211014
General
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Target
c13206d0.exe
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Size
949KB
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MD5
ca30044b80c7eb142fdb58d35199dee1
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SHA1
d985cd5a87ce17612fab903b934caf86447115c2
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SHA256
c13206d017b7aab500f5d5e7800ff25c9c09fde13e83f6511d444d19fcebf528
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SHA512
a82bba62fcee4b9d72b57bc0f34933c068fd3b7ecfa3fe4579b0d4c8abbcfd3d2e4760f3c189f76b6901ffb526112d4dd1d1624ba7c7bba9e747bf1f38ca3449
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.dellvidi.com - Port:
587 - Username:
merchant2@dellvidi.com - Password:
merchant2####
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/764-127-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral2/memory/764-128-0x000000000043701E-mapping.dmp family_agenttesla behavioral2/memory/764-134-0x00000000055C0000-0x0000000005ABE000-memory.dmp family_agenttesla -
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:
c13206d0.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 c13206d0.exe Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 c13206d0.exe Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 c13206d0.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
c13206d0.exedescription pid process target process PID 4304 set thread context of 764 4304 c13206d0.exe c13206d0.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 5 IoCs
Processes:
c13206d0.exec13206d0.exepid process 4304 c13206d0.exe 4304 c13206d0.exe 4304 c13206d0.exe 764 c13206d0.exe 764 c13206d0.exe -
Suspicious behavior: RenamesItself 1 IoCs
Processes:
c13206d0.exepid process 764 c13206d0.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
c13206d0.exec13206d0.exedescription pid process Token: SeDebugPrivilege 4304 c13206d0.exe Token: SeDebugPrivilege 764 c13206d0.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
c13206d0.exepid process 764 c13206d0.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
c13206d0.exedescription pid process target process PID 4304 wrote to memory of 608 4304 c13206d0.exe schtasks.exe PID 4304 wrote to memory of 608 4304 c13206d0.exe schtasks.exe PID 4304 wrote to memory of 608 4304 c13206d0.exe schtasks.exe PID 4304 wrote to memory of 764 4304 c13206d0.exe c13206d0.exe PID 4304 wrote to memory of 764 4304 c13206d0.exe c13206d0.exe PID 4304 wrote to memory of 764 4304 c13206d0.exe c13206d0.exe PID 4304 wrote to memory of 764 4304 c13206d0.exe c13206d0.exe PID 4304 wrote to memory of 764 4304 c13206d0.exe c13206d0.exe PID 4304 wrote to memory of 764 4304 c13206d0.exe c13206d0.exe PID 4304 wrote to memory of 764 4304 c13206d0.exe c13206d0.exe PID 4304 wrote to memory of 764 4304 c13206d0.exe c13206d0.exe -
outlook_office_path 1 IoCs
Processes:
c13206d0.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 c13206d0.exe -
outlook_win_path 1 IoCs
Processes:
c13206d0.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 c13206d0.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\c13206d0.exe"C:\Users\Admin\AppData\Local\Temp\c13206d0.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yYZogvDLX" /XML "C:\Users\Admin\AppData\Local\Temp\tmp89EC.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\c13206d0.exe"C:\Users\Admin\AppData\Local\Temp\c13206d0.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\c13206d0.exe.logMD5
0c2899d7c6746f42d5bbe088c777f94c
SHA1622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1
SHA2565b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458
SHA512ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078
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memory/608-126-0x0000000000000000-mapping.dmp
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memory/764-136-0x0000000006320000-0x0000000006321000-memory.dmpFilesize
4KB
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memory/764-135-0x0000000005A40000-0x0000000005A41000-memory.dmpFilesize
4KB
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memory/764-134-0x00000000055C0000-0x0000000005ABE000-memory.dmpFilesize
5.0MB
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memory/764-128-0x000000000043701E-mapping.dmp
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memory/764-127-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/4304-120-0x0000000005470000-0x0000000005471000-memory.dmpFilesize
4KB
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memory/4304-124-0x00000000057B0000-0x00000000057B2000-memory.dmpFilesize
8KB
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memory/4304-125-0x0000000006080000-0x00000000060C6000-memory.dmpFilesize
280KB
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memory/4304-123-0x0000000006360000-0x00000000063D3000-memory.dmpFilesize
460KB
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memory/4304-122-0x00000000054A0000-0x00000000054B3000-memory.dmpFilesize
76KB
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memory/4304-121-0x00000000057E0000-0x00000000057E1000-memory.dmpFilesize
4KB
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memory/4304-115-0x0000000000B50000-0x0000000000B51000-memory.dmpFilesize
4KB
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memory/4304-119-0x0000000005440000-0x00000000054D2000-memory.dmpFilesize
584KB
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memory/4304-118-0x00000000054E0000-0x00000000054E1000-memory.dmpFilesize
4KB
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memory/4304-117-0x0000000005B00000-0x0000000005B01000-memory.dmpFilesize
4KB