Analysis
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max time kernel
118s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20231023-en -
resource tags
arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system -
submitted
27/11/2023, 02:35
Static task
static1
Behavioral task
behavioral1
Sample
SOB_BK23-003618_25.exe
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
SOB_BK23-003618_25.exe
Resource
win10v2004-20231023-en
General
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Target
SOB_BK23-003618_25.exe
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Size
1.1MB
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MD5
d47b077c6e9d55de441f237619819584
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SHA1
f718cf7a182e1fa8c094431f3d19a86cbd76ddf5
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SHA256
5f934b9c66294466761558a608c02f2d3f73dc5a05a63bb52a5e0e1b0a9a173a
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SHA512
ffd8dbdced84ad651b2a6cb59efa76e1c21786853766ae53308bafd302a9dc0010ccff6824a476dcc0e0456258ab17dcccc7527ee32b2bd0035f8c4967f14898
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SSDEEP
24576:M1dUGCFhfFpw+0hJMaFzbX/u8i5+j/uALxsFtD/:MMLFhfv50h9dbX/25+jDLW3
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.unitechautomations.com - Port:
587 - Username:
[email protected] - Password:
Unitech@123 - 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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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000\Software\Microsoft\Windows\CurrentVersion\Run\fCVSa = "C:\\Users\\Admin\\AppData\\Roaming\\fCVSa\\fCVSa.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.
flow ioc 4 api.ipify.org 5 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1744 set thread context of 2708 1744 SOB_BK23-003618_25.exe 34 -
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.
pid Process 2768 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 9 IoCs
pid Process 1744 SOB_BK23-003618_25.exe 1744 SOB_BK23-003618_25.exe 1744 SOB_BK23-003618_25.exe 2680 powershell.exe 2752 powershell.exe 1744 SOB_BK23-003618_25.exe 1744 SOB_BK23-003618_25.exe 2708 RegSvcs.exe 2708 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1744 SOB_BK23-003618_25.exe Token: SeDebugPrivilege 2680 powershell.exe Token: SeDebugPrivilege 2752 powershell.exe Token: SeDebugPrivilege 2708 RegSvcs.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 1744 wrote to memory of 2752 1744 SOB_BK23-003618_25.exe 28 PID 1744 wrote to memory of 2752 1744 SOB_BK23-003618_25.exe 28 PID 1744 wrote to memory of 2752 1744 SOB_BK23-003618_25.exe 28 PID 1744 wrote to memory of 2752 1744 SOB_BK23-003618_25.exe 28 PID 1744 wrote to memory of 2680 1744 SOB_BK23-003618_25.exe 30 PID 1744 wrote to memory of 2680 1744 SOB_BK23-003618_25.exe 30 PID 1744 wrote to memory of 2680 1744 SOB_BK23-003618_25.exe 30 PID 1744 wrote to memory of 2680 1744 SOB_BK23-003618_25.exe 30 PID 1744 wrote to memory of 2768 1744 SOB_BK23-003618_25.exe 32 PID 1744 wrote to memory of 2768 1744 SOB_BK23-003618_25.exe 32 PID 1744 wrote to memory of 2768 1744 SOB_BK23-003618_25.exe 32 PID 1744 wrote to memory of 2768 1744 SOB_BK23-003618_25.exe 32 PID 1744 wrote to memory of 2708 1744 SOB_BK23-003618_25.exe 34 PID 1744 wrote to memory of 2708 1744 SOB_BK23-003618_25.exe 34 PID 1744 wrote to memory of 2708 1744 SOB_BK23-003618_25.exe 34 PID 1744 wrote to memory of 2708 1744 SOB_BK23-003618_25.exe 34 PID 1744 wrote to memory of 2708 1744 SOB_BK23-003618_25.exe 34 PID 1744 wrote to memory of 2708 1744 SOB_BK23-003618_25.exe 34 PID 1744 wrote to memory of 2708 1744 SOB_BK23-003618_25.exe 34 PID 1744 wrote to memory of 2708 1744 SOB_BK23-003618_25.exe 34 PID 1744 wrote to memory of 2708 1744 SOB_BK23-003618_25.exe 34 PID 1744 wrote to memory of 2708 1744 SOB_BK23-003618_25.exe 34 PID 1744 wrote to memory of 2708 1744 SOB_BK23-003618_25.exe 34 PID 1744 wrote to memory of 2708 1744 SOB_BK23-003618_25.exe 34 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\SOB_BK23-003618_25.exe"C:\Users\Admin\AppData\Local\Temp\SOB_BK23-003618_25.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1744 -
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\SOB_BK23-003618_25.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2752
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\LUWmYRSdzG.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2680
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LUWmYRSdzG" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA89E.tmp"2⤵
- Creates scheduled task(s)
PID:2768
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2708
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD58cdc4e52a62b7ba0c7fa486bf8deda3a
SHA119fb757365e2346f1fd45b66ae2204beb753c905
SHA2567fdb6818f41fc9e1855af59ba7da15db7e1c1493f68ccfc2df36df51320fc648
SHA5125ec23d802b9ec59fb81db457cd7a9edc3ec4d3ce374ac8dfff1d467d398321bd4d23d7156cfac2102041cb7a8b7f22a22b5e53131010df7e52ebd24f3eda9027
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\F6HXTP6NYZBLSAD4RQMH.temp
Filesize7KB
MD52b747f5a93e94de43e0eb119dc8c9528
SHA1d687f9c38216764dabbfc46c9f101619e960f4a3
SHA2565317d2f0aca0face6efea9a5a4e9e82b221490237aa73e2bb87dfbc70f618cbd
SHA5128f054c02fe208a410495aed388f032f5b3db7b4c25dd99319a4a3d471cfecd83b6057f1344490d1c7908be88522355932cf15af4b1671dee39e2fc2ddcda64ed
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
Filesize7KB
MD52b747f5a93e94de43e0eb119dc8c9528
SHA1d687f9c38216764dabbfc46c9f101619e960f4a3
SHA2565317d2f0aca0face6efea9a5a4e9e82b221490237aa73e2bb87dfbc70f618cbd
SHA5128f054c02fe208a410495aed388f032f5b3db7b4c25dd99319a4a3d471cfecd83b6057f1344490d1c7908be88522355932cf15af4b1671dee39e2fc2ddcda64ed