Analysis
- max time kernel
130s - max time network
139s - platform
windows10_x64 - resource
win10 - submitted
12/08/2020, 06:39
Static task
static1
Behavioral task
behavioral1
Sample
western union.exe
Resource
win7v200722
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
western union.exe
Resource
win10
0 signatures
0 seconds
General
- Target western union.exe
- Size 780KB
- Sample200812-pmx5b5lwa2
- SHA256 dec081544348d7000fcbd9ee30c3854733dc8b56f808f5dae28a21050fce03a2
- MD5 93847b77be4e04987b33077434737d01
- SHA1 a446b41c06c743983a40dd986a6de40c594ceee1
- SHA512 75b0237399a98680aa52c7f10a0ecdd50fefb2d7939d79f720ce3dd43cbd2c88acffb427357b1059d6226704c5a8d61aaaa9c831dc81b8fcc49e62a69320acfa
- MD5 SHA1 SHA512
Malware Config
Extracted
Family
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agenttesla
Credentials
-
Protocol
smtp
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Host
smtp.gmail.com
-
Port
587
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Username
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Password
princeptlove41999
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 4 IoCs
resource yara_rule behavioral2/files/0x000200000001ad8e-9.dat family_agenttesla behavioral2/files/0x000200000001ad8e-10.dat family_agenttesla behavioral2/memory/2152-18-0x0000000000400000-0x0000000000450000-memory.dmp family_agenttesla behavioral2/memory/2152-19-0x000000000044A78E-mapping.dmp family_agenttesla - Executes dropped EXE 2 IoCs
pid Process 2752 application.exe 2152 AddInProcess32.exe - Adds Run key to start application 2 TTPs 3 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2066881839-3229799743-3576549721-1000\Software\Microsoft\Windows\CurrentVersion\Run reg.exe Set value (str) \REGISTRY\USER\S-1-5-21-2066881839-3229799743-3576549721-1000\Software\Microsoft\Windows\CurrentVersion\Run\application = "C:\\Windows\\system32\\pcalua.exe -a C:\\Users\\Admin\\AppData\\Roaming\\application.exe" reg.exe Set value (str) \REGISTRY\USER\S-1-5-21-2066881839-3229799743-3576549721-1000\Software\Microsoft\Windows\CurrentVersion\Run\CrywfRZe = "C:\\Users\\Admin\\AppData\\Roaming\\fCvYpQH\\ljYBX.exe" AddInProcess32.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2752 set thread context of 2152 2752 application.exe 77 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 19 IoCs
pid Process 3908 western union.exe 3908 western union.exe 3908 western union.exe 3908 western union.exe 3908 western union.exe 3908 western union.exe 3908 western union.exe 3908 western union.exe 3908 western union.exe 3908 western union.exe 3908 western union.exe 3908 western union.exe 3908 western union.exe 3908 western union.exe 2752 application.exe 2752 application.exe 2752 application.exe 2152 AddInProcess32.exe 2152 AddInProcess32.exe - Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 3908 western union.exe Token: SeDebugPrivilege 2752 application.exe Token: SeDebugPrivilege 2152 AddInProcess32.exe - Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 3908 wrote to memory of 3916 3908 western union.exe 67 PID 3908 wrote to memory of 3916 3908 western union.exe 67 PID 3908 wrote to memory of 3916 3908 western union.exe 67 PID 3916 wrote to memory of 2896 3916 cmd.exe 69 PID 3916 wrote to memory of 2896 3916 cmd.exe 69 PID 3916 wrote to memory of 2896 3916 cmd.exe 69 PID 3908 wrote to memory of 2752 3908 western union.exe 70 PID 3908 wrote to memory of 2752 3908 western union.exe 70 PID 3908 wrote to memory of 2752 3908 western union.exe 70 PID 2752 wrote to memory of 2152 2752 application.exe 77 PID 2752 wrote to memory of 2152 2752 application.exe 77 PID 2752 wrote to memory of 2152 2752 application.exe 77 PID 2752 wrote to memory of 2152 2752 application.exe 77 PID 2752 wrote to memory of 2152 2752 application.exe 77 PID 2752 wrote to memory of 2152 2752 application.exe 77 PID 2752 wrote to memory of 2152 2752 application.exe 77 PID 2752 wrote to memory of 2152 2752 application.exe 77
Processes
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C:\Users\Admin\AppData\Local\Temp\western union.exe"C:\Users\Admin\AppData\Local\Temp\western union.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3908 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v application /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\application.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:3916 -
C:\Windows\SysWOW64\reg.exeREG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v application /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\application.exe"3⤵
- Adds Run key to start application
PID:2896
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C:\Users\Admin\AppData\Roaming\application.exe"C:\Users\Admin\AppData\Roaming\application.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2752 -
C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"3⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2152
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