Analysis
- max time kernel
145s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20230221-en - resource tags
arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system - submitted
09/06/2023, 07:35
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
804152064.exe
Resource
win7-20230220-en
12 signatures
150 seconds
Behavioral task
behavioral2
Sample
804152064.exe
Resource
win10v2004-20230221-en
13 signatures
150 seconds
General
- Target 804152064.exe
- Size 723KB
- Sample230609-jen4nsbd83
- SHA256 ad641230d3be8895193642d333ed88e1d6e94c209dfcb6c1932cd6a7f324a82f
- MD5 331bc06d67e4078e0779a9a0a5d355b5
- SHA1 475924a69dee5e4a4ab1a66c944068fa2111db68
- SHA512 8e30912ab46b825292955ad70f816a8a12171692272af563181630a4ec0e24de2dbb240c8cfbf666e6233fc9c58858d88de53164dde82a804066c842501c8fee
- SSDEEP 12288:sk+J/M+Jhewx/NscEQ+vgXK1HsaPbntTjlFhush1nPTs8HlaxYvR1toDvll2Hvk/:sl/thewlqB6pGjlfusbrs8UYvREblivu
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
Family
-
agenttesla
Credentials
-
Protocol
smtp
-
Host
smtp.gmail.com
-
Port
587
-
Username
-
Password
iebtzpacgzyullvo
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation 804152064.exe - Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe Key opened \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe Key opened \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\aCcAwFD = "C:\\Users\\Admin\\AppData\\Roaming\\aCcAwFD\\aCcAwFD.exe" MSBuild.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 27 api.ipify.org 28 api.ipify.org - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1584 set thread context of 2124 1584 804152064.exe 95 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4788 schtasks.exe - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 1584 804152064.exe 1584 804152064.exe 968 powershell.exe 968 powershell.exe 2124 MSBuild.exe 2124 MSBuild.exe - Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 1584 804152064.exe Token: SeDebugPrivilege 968 powershell.exe Token: SeDebugPrivilege 2124 MSBuild.exe - Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 1584 wrote to memory of 968 1584 804152064.exe 91 PID 1584 wrote to memory of 968 1584 804152064.exe 91 PID 1584 wrote to memory of 968 1584 804152064.exe 91 PID 1584 wrote to memory of 4788 1584 804152064.exe 93 PID 1584 wrote to memory of 4788 1584 804152064.exe 93 PID 1584 wrote to memory of 4788 1584 804152064.exe 93 PID 1584 wrote to memory of 2124 1584 804152064.exe 95 PID 1584 wrote to memory of 2124 1584 804152064.exe 95 PID 1584 wrote to memory of 2124 1584 804152064.exe 95 PID 1584 wrote to memory of 2124 1584 804152064.exe 95 PID 1584 wrote to memory of 2124 1584 804152064.exe 95 PID 1584 wrote to memory of 2124 1584 804152064.exe 95 PID 1584 wrote to memory of 2124 1584 804152064.exe 95 PID 1584 wrote to memory of 2124 1584 804152064.exe 95 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\804152064.exe"C:\Users\Admin\AppData\Local\Temp\804152064.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1584 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\yZRXCHBD.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:968
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yZRXCHBD" /XML "C:\Users\Admin\AppData\Local\Temp\tmp102C.tmp"2⤵
- Creates scheduled task(s)
PID:4788
-
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.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:2124
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_s3wm3jta.ulu.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\tmp102C.tmp
- Size 1KB
- SHA256 47bc3bf0f45c8dd3d80d4e69eddae1f82239d950ae83e4a289666462069072bc
- MD5 9c507271f546119944fa6bb00dafbbd4
- SHA1 212fff070afea2c031e19fae153c66e8fa764c2b
- SHA512 e01d17bde1058a9d8cc16957f16f0ac468ec0bfd84c3315ffb9a2fced8cc87fea95569b2649c7882185869f3e9d3ecd3336dd93d28d17f257a5bdfc8807a64d4
- MD5 SHA1 SHA512