Analysis
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max time kernel
135s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
01-11-2024 16:21
Static task
static1
Behavioral task
behavioral1
Sample
f17a45c8b3ac9adf1a66dfa1b27e62e433adfaabcd36ba52deac1e7c00699f47.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
f17a45c8b3ac9adf1a66dfa1b27e62e433adfaabcd36ba52deac1e7c00699f47.exe
Resource
win10v2004-20241007-en
General
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Target
f17a45c8b3ac9adf1a66dfa1b27e62e433adfaabcd36ba52deac1e7c00699f47.exe
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Size
1.5MB
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MD5
0a3235126ffdfe6e847946d2eb23c03e
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SHA1
2a00f21b2d1adc51c3fd9c39054317c6d88f349d
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SHA256
f17a45c8b3ac9adf1a66dfa1b27e62e433adfaabcd36ba52deac1e7c00699f47
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SHA512
b642e1be2a26ee20ee8d859535a6afe04640f707090461764f7b563ab6d12bb36bd78b44d0462bfde4271e2c6031124d31595358382d56c679077774072259d9
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SSDEEP
12288:m2T93/oterg2+h1QQEroi+YoaUqd+u/2f:P372EMj6Uqd+u+
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
s82.gocheapweb.com - Port:
587 - Username:
[email protected] - Password:
london@1759 - 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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Agenttesla family
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Detect Xworm Payload 23 IoCs
Processes:
resource yara_rule behavioral1/memory/2268-31-0x0000000000830000-0x0000000000854000-memory.dmp family_xworm behavioral1/memory/2268-34-0x00000000009C0000-0x00000000009E2000-memory.dmp family_xworm behavioral1/memory/2268-38-0x00000000009C0000-0x00000000009DD000-memory.dmp family_xworm behavioral1/memory/2268-36-0x00000000009C0000-0x00000000009DD000-memory.dmp family_xworm behavioral1/memory/2268-35-0x00000000009C0000-0x00000000009DD000-memory.dmp family_xworm behavioral1/memory/2268-40-0x00000000009C0000-0x00000000009DD000-memory.dmp family_xworm behavioral1/memory/2268-42-0x00000000009C0000-0x00000000009DD000-memory.dmp family_xworm behavioral1/memory/2268-54-0x00000000009C0000-0x00000000009DD000-memory.dmp family_xworm behavioral1/memory/2268-52-0x00000000009C0000-0x00000000009DD000-memory.dmp family_xworm behavioral1/memory/2268-50-0x00000000009C0000-0x00000000009DD000-memory.dmp family_xworm behavioral1/memory/2268-56-0x00000000009C0000-0x00000000009DD000-memory.dmp family_xworm behavioral1/memory/2268-48-0x00000000009C0000-0x00000000009DD000-memory.dmp family_xworm behavioral1/memory/2268-46-0x00000000009C0000-0x00000000009DD000-memory.dmp family_xworm behavioral1/memory/2268-44-0x00000000009C0000-0x00000000009DD000-memory.dmp family_xworm behavioral1/memory/2268-58-0x00000000009C0000-0x00000000009DD000-memory.dmp family_xworm behavioral1/memory/2268-60-0x00000000009C0000-0x00000000009DD000-memory.dmp family_xworm behavioral1/memory/2268-62-0x00000000009C0000-0x00000000009DD000-memory.dmp family_xworm behavioral1/memory/2268-64-0x00000000009C0000-0x00000000009DD000-memory.dmp family_xworm behavioral1/memory/2268-74-0x00000000009C0000-0x00000000009DD000-memory.dmp family_xworm behavioral1/memory/2268-72-0x00000000009C0000-0x00000000009DD000-memory.dmp family_xworm behavioral1/memory/2268-70-0x00000000009C0000-0x00000000009DD000-memory.dmp family_xworm behavioral1/memory/2268-68-0x00000000009C0000-0x00000000009DD000-memory.dmp family_xworm behavioral1/memory/2268-66-0x00000000009C0000-0x00000000009DD000-memory.dmp family_xworm -
Xworm family
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Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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Drops startup file 3 IoCs
Processes:
wab.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk wab.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk wab.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\apihost.exe.lnk wab.exe -
Executes dropped EXE 4 IoCs
Processes:
XClient.exeapihost.exeXClient.exeXClient.exepid process 2324 XClient.exe 2396 apihost.exe 1820 XClient.exe 3008 XClient.exe -
Loads dropped DLL 3 IoCs
Processes:
wab.exepid process 2268 wab.exe 2268 wab.exe 2268 wab.exe -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
wab.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 wab.exe Key opened \REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 wab.exe Key opened \REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 wab.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
wab.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.exe" wab.exe -
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 6 checkip.dyndns.org 9 api.ipify.org 10 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
f17a45c8b3ac9adf1a66dfa1b27e62e433adfaabcd36ba52deac1e7c00699f47.exedescription pid process target process PID 2384 set thread context of 2268 2384 f17a45c8b3ac9adf1a66dfa1b27e62e433adfaabcd36ba52deac1e7c00699f47.exe wab.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 8 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
apihost.exeXClient.exeXClient.exewab.exeschtasks.exeXClient.exeschtasks.exepowershell.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language apihost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language XClient.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language XClient.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language wab.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language XClient.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid process 1528 schtasks.exe 2944 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
Processes:
wab.exepowershell.exepid process 2268 wab.exe 2268 wab.exe 2268 wab.exe 1052 powershell.exe 2268 wab.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
f17a45c8b3ac9adf1a66dfa1b27e62e433adfaabcd36ba52deac1e7c00699f47.exewab.exepowershell.exedescription pid process Token: SeDebugPrivilege 2384 f17a45c8b3ac9adf1a66dfa1b27e62e433adfaabcd36ba52deac1e7c00699f47.exe Token: SeDebugPrivilege 2268 wab.exe Token: SeDebugPrivilege 1052 powershell.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
wab.exepid process 2268 wab.exe 2268 wab.exe -
Suspicious use of WriteProcessMemory 51 IoCs
Processes:
f17a45c8b3ac9adf1a66dfa1b27e62e433adfaabcd36ba52deac1e7c00699f47.exewab.exetaskeng.exedescription pid process target process PID 2384 wrote to memory of 2052 2384 f17a45c8b3ac9adf1a66dfa1b27e62e433adfaabcd36ba52deac1e7c00699f47.exe ngen.exe PID 2384 wrote to memory of 2052 2384 f17a45c8b3ac9adf1a66dfa1b27e62e433adfaabcd36ba52deac1e7c00699f47.exe ngen.exe PID 2384 wrote to memory of 2052 2384 f17a45c8b3ac9adf1a66dfa1b27e62e433adfaabcd36ba52deac1e7c00699f47.exe ngen.exe PID 2384 wrote to memory of 2052 2384 f17a45c8b3ac9adf1a66dfa1b27e62e433adfaabcd36ba52deac1e7c00699f47.exe ngen.exe PID 2384 wrote to memory of 2052 2384 f17a45c8b3ac9adf1a66dfa1b27e62e433adfaabcd36ba52deac1e7c00699f47.exe ngen.exe PID 2384 wrote to memory of 2052 2384 f17a45c8b3ac9adf1a66dfa1b27e62e433adfaabcd36ba52deac1e7c00699f47.exe ngen.exe PID 2384 wrote to memory of 2052 2384 f17a45c8b3ac9adf1a66dfa1b27e62e433adfaabcd36ba52deac1e7c00699f47.exe ngen.exe PID 2384 wrote to memory of 2052 2384 f17a45c8b3ac9adf1a66dfa1b27e62e433adfaabcd36ba52deac1e7c00699f47.exe ngen.exe PID 2384 wrote to memory of 2052 2384 f17a45c8b3ac9adf1a66dfa1b27e62e433adfaabcd36ba52deac1e7c00699f47.exe ngen.exe PID 2384 wrote to memory of 2268 2384 f17a45c8b3ac9adf1a66dfa1b27e62e433adfaabcd36ba52deac1e7c00699f47.exe wab.exe PID 2384 wrote to memory of 2268 2384 f17a45c8b3ac9adf1a66dfa1b27e62e433adfaabcd36ba52deac1e7c00699f47.exe wab.exe PID 2384 wrote to memory of 2268 2384 f17a45c8b3ac9adf1a66dfa1b27e62e433adfaabcd36ba52deac1e7c00699f47.exe wab.exe PID 2384 wrote to memory of 2268 2384 f17a45c8b3ac9adf1a66dfa1b27e62e433adfaabcd36ba52deac1e7c00699f47.exe wab.exe PID 2384 wrote to memory of 2268 2384 f17a45c8b3ac9adf1a66dfa1b27e62e433adfaabcd36ba52deac1e7c00699f47.exe wab.exe PID 2384 wrote to memory of 2268 2384 f17a45c8b3ac9adf1a66dfa1b27e62e433adfaabcd36ba52deac1e7c00699f47.exe wab.exe PID 2384 wrote to memory of 2268 2384 f17a45c8b3ac9adf1a66dfa1b27e62e433adfaabcd36ba52deac1e7c00699f47.exe wab.exe PID 2384 wrote to memory of 2268 2384 f17a45c8b3ac9adf1a66dfa1b27e62e433adfaabcd36ba52deac1e7c00699f47.exe wab.exe PID 2384 wrote to memory of 2268 2384 f17a45c8b3ac9adf1a66dfa1b27e62e433adfaabcd36ba52deac1e7c00699f47.exe wab.exe PID 2384 wrote to memory of 2268 2384 f17a45c8b3ac9adf1a66dfa1b27e62e433adfaabcd36ba52deac1e7c00699f47.exe wab.exe PID 2384 wrote to memory of 2760 2384 f17a45c8b3ac9adf1a66dfa1b27e62e433adfaabcd36ba52deac1e7c00699f47.exe wab.exe PID 2384 wrote to memory of 2760 2384 f17a45c8b3ac9adf1a66dfa1b27e62e433adfaabcd36ba52deac1e7c00699f47.exe wab.exe PID 2384 wrote to memory of 2760 2384 f17a45c8b3ac9adf1a66dfa1b27e62e433adfaabcd36ba52deac1e7c00699f47.exe wab.exe PID 2384 wrote to memory of 2760 2384 f17a45c8b3ac9adf1a66dfa1b27e62e433adfaabcd36ba52deac1e7c00699f47.exe wab.exe PID 2268 wrote to memory of 1528 2268 wab.exe schtasks.exe PID 2268 wrote to memory of 1528 2268 wab.exe schtasks.exe PID 2268 wrote to memory of 1528 2268 wab.exe schtasks.exe PID 2268 wrote to memory of 1528 2268 wab.exe schtasks.exe PID 924 wrote to memory of 2324 924 taskeng.exe XClient.exe PID 924 wrote to memory of 2324 924 taskeng.exe XClient.exe PID 924 wrote to memory of 2324 924 taskeng.exe XClient.exe PID 924 wrote to memory of 2324 924 taskeng.exe XClient.exe PID 2268 wrote to memory of 1052 2268 wab.exe powershell.exe PID 2268 wrote to memory of 1052 2268 wab.exe powershell.exe PID 2268 wrote to memory of 1052 2268 wab.exe powershell.exe PID 2268 wrote to memory of 1052 2268 wab.exe powershell.exe PID 2268 wrote to memory of 2944 2268 wab.exe schtasks.exe PID 2268 wrote to memory of 2944 2268 wab.exe schtasks.exe PID 2268 wrote to memory of 2944 2268 wab.exe schtasks.exe PID 2268 wrote to memory of 2944 2268 wab.exe schtasks.exe PID 2268 wrote to memory of 2396 2268 wab.exe apihost.exe PID 2268 wrote to memory of 2396 2268 wab.exe apihost.exe PID 2268 wrote to memory of 2396 2268 wab.exe apihost.exe PID 2268 wrote to memory of 2396 2268 wab.exe apihost.exe PID 924 wrote to memory of 1820 924 taskeng.exe XClient.exe PID 924 wrote to memory of 1820 924 taskeng.exe XClient.exe PID 924 wrote to memory of 1820 924 taskeng.exe XClient.exe PID 924 wrote to memory of 1820 924 taskeng.exe XClient.exe PID 924 wrote to memory of 3008 924 taskeng.exe XClient.exe PID 924 wrote to memory of 3008 924 taskeng.exe XClient.exe PID 924 wrote to memory of 3008 924 taskeng.exe XClient.exe PID 924 wrote to memory of 3008 924 taskeng.exe XClient.exe -
outlook_office_path 1 IoCs
Processes:
wab.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 wab.exe -
outlook_win_path 1 IoCs
Processes:
wab.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 wab.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\f17a45c8b3ac9adf1a66dfa1b27e62e433adfaabcd36ba52deac1e7c00699f47.exe"C:\Users\Admin\AppData\Local\Temp\f17a45c8b3ac9adf1a66dfa1b27e62e433adfaabcd36ba52deac1e7c00699f47.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2384 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe"2⤵PID:2052
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C:\Program Files (x86)\Windows Mail\wab.exe"C:\Program Files (x86)\Windows Mail\wab.exe"2⤵
- Drops startup file
- Loads dropped DLL
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:2268 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "XClient" /tr "C:\Users\Admin\AppData\Roaming\XClient.exe"3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:1528 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\ACCApi'3⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1052 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /tn AccSys /tr "C:\Users\Admin\AppData\Roaming\ACCApi\apihost.exe" /st 16:38 /du 23:59 /sc daily /ri 1 /f3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2944 -
C:\Users\Admin\AppData\Roaming\ACCApi\apihost.exe"C:\Users\Admin\AppData\Roaming\ACCApi\apihost.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2396 -
C:\Program Files (x86)\Windows Mail\wab.exe"C:\Program Files (x86)\Windows Mail\wab.exe"2⤵PID:2760
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C:\Windows\system32\taskeng.exetaskeng.exe {33D73C66-EEDD-4137-AEB2-4312BAA97A61} S-1-5-21-2872745919-2748461613-2989606286-1000:CCJBVTGQ\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
PID:924 -
C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2324 -
C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1820 -
C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3008
Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
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Downloads
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Filesize
504KB
MD5ef162817c730db9355f6c28f2445d206
SHA1cd8dc9ece1cd52447921afa483c81617b021ecb3
SHA25684ac974bf163a6eb540744435fd65adc951ecf1bff77dba7d2b5d9f389e1dad7
SHA5120725dabbaa77acb18ed5e237ea1126d65f53fe58a0c6bed5aca07f24df168381476ea02c67195febfcd19c56feb82ec9a64876382ea98528b81da857f76bc0c1