Analysis
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max time kernel
115s -
max time network
125s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
30-03-2024 02:08
Static task
static1
Behavioral task
behavioral1
Sample
oBMlky3Rkm7h5QK.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
oBMlky3Rkm7h5QK.exe
Resource
win10v2004-20240226-en
General
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Target
oBMlky3Rkm7h5QK.exe
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Size
744KB
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MD5
596365c750c4f8e60a966e220e35e7d9
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SHA1
234b7114f19589e1768670361e2a4cd7328f8c75
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SHA256
e77c8ca31128a1a181b99a8234f39559854855d871d7abe167e004bb970e7f3c
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SHA512
5679cc3bca181e417de60f4f8c473a17445405eb32f0e37855111ba5f6b8a95cc22225628da8c0227078177342ad3f9a1b9c3b985e04aff086d0a7e626e20047
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SSDEEP
12288:akz4ayww0uLdzCeXEdFGpQCDsmIag2Sh7unpPcmg5I0i4DVlupWXAhT:UajazCe0dFoQQs55h7uVoG0dDVlup+
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.pacificindia.com - Port:
587 - Username:
[email protected] - Password:
FEYEjBLgGnyw - Email To:
[email protected]
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs
Processes:
resource yara_rule behavioral2/memory/1648-45-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_EXE_Packed_GEN01 -
Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
Processes:
resource yara_rule behavioral2/memory/1648-45-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers -
Detects executables packed with SmartAssembly 1 IoCs
Processes:
resource yara_rule behavioral2/memory/776-8-0x0000000004D90000-0x0000000004D9C000-memory.dmp INDICATOR_EXE_Packed_SmartAssembly -
Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs
Processes:
resource yara_rule behavioral2/memory/1648-45-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID -
Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs
Processes:
resource yara_rule behavioral2/memory/1648-45-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store -
Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs
Processes:
resource yara_rule behavioral2/memory/1648-45-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients -
Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs
Processes:
resource yara_rule behavioral2/memory/1648-45-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
oBMlky3Rkm7h5QK.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation oBMlky3Rkm7h5QK.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
RegSvcs.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\qZeUnR = "C:\\Users\\Admin\\AppData\\Roaming\\qZeUnR\\qZeUnR.exe" RegSvcs.exe -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 20 api.ipify.org 19 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
oBMlky3Rkm7h5QK.exedescription pid process target process PID 776 set thread context of 1648 776 oBMlky3Rkm7h5QK.exe RegSvcs.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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 12 IoCs
Processes:
oBMlky3Rkm7h5QK.exepowershell.exepowershell.exeRegSvcs.exepid process 776 oBMlky3Rkm7h5QK.exe 2672 powershell.exe 2672 powershell.exe 1036 powershell.exe 1036 powershell.exe 776 oBMlky3Rkm7h5QK.exe 776 oBMlky3Rkm7h5QK.exe 1036 powershell.exe 1648 RegSvcs.exe 1648 RegSvcs.exe 1648 RegSvcs.exe 2672 powershell.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
oBMlky3Rkm7h5QK.exepowershell.exepowershell.exeRegSvcs.exedescription pid process Token: SeDebugPrivilege 776 oBMlky3Rkm7h5QK.exe Token: SeDebugPrivilege 2672 powershell.exe Token: SeDebugPrivilege 1036 powershell.exe Token: SeDebugPrivilege 1648 RegSvcs.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
oBMlky3Rkm7h5QK.exedescription pid process target process PID 776 wrote to memory of 1036 776 oBMlky3Rkm7h5QK.exe powershell.exe PID 776 wrote to memory of 1036 776 oBMlky3Rkm7h5QK.exe powershell.exe PID 776 wrote to memory of 1036 776 oBMlky3Rkm7h5QK.exe powershell.exe PID 776 wrote to memory of 2672 776 oBMlky3Rkm7h5QK.exe powershell.exe PID 776 wrote to memory of 2672 776 oBMlky3Rkm7h5QK.exe powershell.exe PID 776 wrote to memory of 2672 776 oBMlky3Rkm7h5QK.exe powershell.exe PID 776 wrote to memory of 364 776 oBMlky3Rkm7h5QK.exe schtasks.exe PID 776 wrote to memory of 364 776 oBMlky3Rkm7h5QK.exe schtasks.exe PID 776 wrote to memory of 364 776 oBMlky3Rkm7h5QK.exe schtasks.exe PID 776 wrote to memory of 1648 776 oBMlky3Rkm7h5QK.exe RegSvcs.exe PID 776 wrote to memory of 1648 776 oBMlky3Rkm7h5QK.exe RegSvcs.exe PID 776 wrote to memory of 1648 776 oBMlky3Rkm7h5QK.exe RegSvcs.exe PID 776 wrote to memory of 1648 776 oBMlky3Rkm7h5QK.exe RegSvcs.exe PID 776 wrote to memory of 1648 776 oBMlky3Rkm7h5QK.exe RegSvcs.exe PID 776 wrote to memory of 1648 776 oBMlky3Rkm7h5QK.exe RegSvcs.exe PID 776 wrote to memory of 1648 776 oBMlky3Rkm7h5QK.exe RegSvcs.exe PID 776 wrote to memory of 1648 776 oBMlky3Rkm7h5QK.exe RegSvcs.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\oBMlky3Rkm7h5QK.exe"C:\Users\Admin\AppData\Local\Temp\oBMlky3Rkm7h5QK.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:776 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\oBMlky3Rkm7h5QK.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1036 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ECXXCuFHUVw.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2672 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ECXXCuFHUVw" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6C66.tmp"2⤵
- Creates scheduled task(s)
PID:364 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1648
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD55bd775bc94f5db31ed06f14fac93917d
SHA1e4c63172903614aa09c741d201276c6998d973b8
SHA2565f97642718ed2379770d6795ed514779bfc8ca21f0dbcc1f25116041fb930102
SHA51238cc1d415bf183464fca31dd1f8427d02b366fd2087d9438d7df7b1243c49eaf0684c351f248fd8cec2fc8884e1d6733f21c8a9a891fefa8eb4957bd5ff6acd1