Analysis
- max time kernel
151s - max time network
24s - platform
windows7_x64 - resource
win7v200722 - submitted
31/07/2020, 06:22
Static task
static1
Behavioral task
behavioral1
Sample
New Po.exe
Resource
win7v200722
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
New Po.exe
Resource
win10v200722
0 signatures
0 seconds
General
- Target New Po.exe
- Size 740KB
- Sample200731-7ed2klc4xa
- SHA256 ffb914ef6c0c0b2077f019be5f0fc486ff611af6ba5922bb4f9a44e57565b77e
- MD5 41661d4ec98347e7359621a526e7e976
- SHA1 e35dddbc0fbf97a94257039941d6910ffc7615d4
- SHA512 e84e99a942e93892e5b5d4ceb762f2a8cdcd8926ab62b3d74a0f0c96cc33297d84700e2b2464d327ecf0de887b068444a594bcf1ce0ac1235705ec75724973e1
- MD5 SHA1 SHA512
Malware Config
Extracted
Family
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agenttesla
Credentials
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Protocol
smtp
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Host
webmail.chennairealty.biz
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Port
587
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Username
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Password
Mp@123cr
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 4 IoCs
resource yara_rule behavioral1/memory/1584-14-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1584-15-0x000000000044748E-mapping.dmp family_agenttesla behavioral1/memory/1584-17-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1584-18-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla - Executes dropped EXE 2 IoCs
pid Process 776 uche.exe 1584 AddInProcess32.exe - Loads dropped DLL 2 IoCs
pid Process 1420 New Po.exe 776 uche.exe - Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2090973689-680783404-4292415065-1000\Software\Microsoft\Windows\CurrentVersion\Run reg.exe Set value (str) \REGISTRY\USER\S-1-5-21-2090973689-680783404-4292415065-1000\Software\Microsoft\Windows\CurrentVersion\Run\uche = "C:\\Windows\\system32\\pcalua.exe -a C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\uche.exe" reg.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 776 set thread context of 1584 776 uche.exe 30 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 1420 New Po.exe 1420 New Po.exe 1420 New Po.exe 776 uche.exe 776 uche.exe 776 uche.exe 1584 AddInProcess32.exe 1584 AddInProcess32.exe - Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 1420 New Po.exe Token: SeDebugPrivilege 776 uche.exe Token: SeDebugPrivilege 1584 AddInProcess32.exe - Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 1420 wrote to memory of 1848 1420 New Po.exe 26 PID 1420 wrote to memory of 1848 1420 New Po.exe 26 PID 1420 wrote to memory of 1848 1420 New Po.exe 26 PID 1420 wrote to memory of 1848 1420 New Po.exe 26 PID 1848 wrote to memory of 1776 1848 cmd.exe 28 PID 1848 wrote to memory of 1776 1848 cmd.exe 28 PID 1848 wrote to memory of 1776 1848 cmd.exe 28 PID 1848 wrote to memory of 1776 1848 cmd.exe 28 PID 1420 wrote to memory of 776 1420 New Po.exe 29 PID 1420 wrote to memory of 776 1420 New Po.exe 29 PID 1420 wrote to memory of 776 1420 New Po.exe 29 PID 1420 wrote to memory of 776 1420 New Po.exe 29 PID 776 wrote to memory of 1584 776 uche.exe 30 PID 776 wrote to memory of 1584 776 uche.exe 30 PID 776 wrote to memory of 1584 776 uche.exe 30 PID 776 wrote to memory of 1584 776 uche.exe 30 PID 776 wrote to memory of 1584 776 uche.exe 30 PID 776 wrote to memory of 1584 776 uche.exe 30 PID 776 wrote to memory of 1584 776 uche.exe 30 PID 776 wrote to memory of 1584 776 uche.exe 30 PID 776 wrote to memory of 1584 776 uche.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\New Po.exe"C:\Users\Admin\AppData\Local\Temp\New Po.exe"1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1420 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v uche /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\uche.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:1848 -
C:\Windows\SysWOW64\reg.exeREG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v uche /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\uche.exe"3⤵
- Adds Run key to start application
PID:1776
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\uche.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\uche.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:776 -
C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1584
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