Analysis
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max time kernel
119s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
17-06-2024 16:48
Static task
static1
Behavioral task
behavioral1
Sample
z27FACTURA09654700.BAT.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
z27FACTURA09654700.BAT.exe
Resource
win10v2004-20240611-en
General
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Target
z27FACTURA09654700.BAT.exe
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Size
1.0MB
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MD5
aed00ff3e85dbf1bbf99939966939b3a
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SHA1
d02a5bc420207a7958e34a4740968439969f5b19
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SHA256
b772162c5b510c5427be045abfdc43c29756217e2ed924ce4c4388bd457a4987
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SHA512
08ad4f11a67a9e8228d83e96fbcccd98910d53ff2929e2d70d336b8e808d4d7e37f90d157e2747b744eb19b451aba2a0985022207a68ff50dcbd8cdef5e1f50a
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SSDEEP
24576:HAHnh+eWsN3skA4RV1Hom2KXMmHauOVaz7jxokZf4vFEGR5:6h+ZkldoPK8YauOIzHxokZfqFEo
Malware Config
Extracted
agenttesla
Protocol: ftp- Host:
ftp://ftp.antoniomayol.com:21 - Port:
21 - Username:
[email protected] - Password:
cMhKDQUk1{;%
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Drops startup file 1 IoCs
Processes:
corynteria.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\corynteria.vbs corynteria.exe -
Executes dropped EXE 1 IoCs
Processes:
corynteria.exepid process 1388 corynteria.exe -
Loads dropped DLL 6 IoCs
Processes:
z27FACTURA09654700.BAT.exeWerFault.exepid process 1908 z27FACTURA09654700.BAT.exe 2992 WerFault.exe 2992 WerFault.exe 2992 WerFault.exe 2992 WerFault.exe 2992 WerFault.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 4 ip-api.com -
AutoIT Executable 1 IoCs
AutoIT scripts compiled to PE executables.
Processes:
resource yara_rule \Users\Admin\AppData\Local\obtenebrate\corynteria.exe autoit_exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
corynteria.exedescription pid process target process PID 1388 set thread context of 1212 1388 corynteria.exe RegSvcs.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 2992 1388 WerFault.exe corynteria.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
RegSvcs.exepid process 1212 RegSvcs.exe 1212 RegSvcs.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
corynteria.exepid process 1388 corynteria.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
RegSvcs.exedescription pid process Token: SeDebugPrivilege 1212 RegSvcs.exe -
Suspicious use of FindShellTrayWindow 4 IoCs
Processes:
z27FACTURA09654700.BAT.execorynteria.exepid process 1908 z27FACTURA09654700.BAT.exe 1908 z27FACTURA09654700.BAT.exe 1388 corynteria.exe 1388 corynteria.exe -
Suspicious use of SendNotifyMessage 4 IoCs
Processes:
z27FACTURA09654700.BAT.execorynteria.exepid process 1908 z27FACTURA09654700.BAT.exe 1908 z27FACTURA09654700.BAT.exe 1388 corynteria.exe 1388 corynteria.exe -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
z27FACTURA09654700.BAT.execorynteria.exedescription pid process target process PID 1908 wrote to memory of 1388 1908 z27FACTURA09654700.BAT.exe corynteria.exe PID 1908 wrote to memory of 1388 1908 z27FACTURA09654700.BAT.exe corynteria.exe PID 1908 wrote to memory of 1388 1908 z27FACTURA09654700.BAT.exe corynteria.exe PID 1908 wrote to memory of 1388 1908 z27FACTURA09654700.BAT.exe corynteria.exe PID 1388 wrote to memory of 1212 1388 corynteria.exe RegSvcs.exe PID 1388 wrote to memory of 1212 1388 corynteria.exe RegSvcs.exe PID 1388 wrote to memory of 1212 1388 corynteria.exe RegSvcs.exe PID 1388 wrote to memory of 1212 1388 corynteria.exe RegSvcs.exe PID 1388 wrote to memory of 1212 1388 corynteria.exe RegSvcs.exe PID 1388 wrote to memory of 1212 1388 corynteria.exe RegSvcs.exe PID 1388 wrote to memory of 1212 1388 corynteria.exe RegSvcs.exe PID 1388 wrote to memory of 1212 1388 corynteria.exe RegSvcs.exe PID 1388 wrote to memory of 2992 1388 corynteria.exe WerFault.exe PID 1388 wrote to memory of 2992 1388 corynteria.exe WerFault.exe PID 1388 wrote to memory of 2992 1388 corynteria.exe WerFault.exe PID 1388 wrote to memory of 2992 1388 corynteria.exe WerFault.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\z27FACTURA09654700.BAT.exe"C:\Users\Admin\AppData\Local\Temp\z27FACTURA09654700.BAT.exe"1⤵
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1908 -
C:\Users\Admin\AppData\Local\obtenebrate\corynteria.exe"C:\Users\Admin\AppData\Local\Temp\z27FACTURA09654700.BAT.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1388 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Users\Admin\AppData\Local\Temp\z27FACTURA09654700.BAT.exe"3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1212 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1388 -s 3203⤵
- Loads dropped DLL
- Program crash
PID:2992
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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MD5
d41d8cd98f00b204e9800998ecf8427e
SHA1da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e
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Filesize
1.0MB
MD5aed00ff3e85dbf1bbf99939966939b3a
SHA1d02a5bc420207a7958e34a4740968439969f5b19
SHA256b772162c5b510c5427be045abfdc43c29756217e2ed924ce4c4388bd457a4987
SHA51208ad4f11a67a9e8228d83e96fbcccd98910d53ff2929e2d70d336b8e808d4d7e37f90d157e2747b744eb19b451aba2a0985022207a68ff50dcbd8cdef5e1f50a