Analysis
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max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
03-10-2024 11:21
Static task
static1
Behavioral task
behavioral1
Sample
iu5J6ktsl7y8tiM.exe
Resource
win7-20240903-en
General
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Target
iu5J6ktsl7y8tiM.exe
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Size
790KB
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MD5
6fc0480b81f7492fef68b69e3707c213
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SHA1
956e53123b9650d62f38532fe65e7c72f1fced1d
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SHA256
021b5417b02a080b620285e4bc35871a4c013c4fb46884574bad06b2b896394c
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SHA512
7edfc8b39d60f3d898e8d876e2d591f6db6cd023242d427b14268b4908d3ac8cb16a85ab19aa1b06b3fd735636b5c2b8ee7a8c6fe6f3b7dbdbd848458e9c5ae6
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SSDEEP
12288:SW6jz+yrT5G1wXJjMZMNX0Q+JiDi3yqepAhencOxeUc7N5F:V+z+yrTrlPUeFjAhff7Nf
Malware Config
Extracted
Protocol: smtp- Host:
mail.apexrnun.com - Port:
587 - Username:
[email protected] - Password:
dU*wU0)yR;?4q|-#
Extracted
agenttesla
Protocol: smtp- Host:
mail.apexrnun.com - Port:
587 - Username:
[email protected] - Password:
dU*wU0)yR;?4q|-# - 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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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.
pid Process 4684 powershell.exe -
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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation iu5J6ktsl7y8tiM.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 25 ip-api.com -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4944 set thread context of 508 4944 iu5J6ktsl7y8tiM.exe 91 -
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 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language iu5J6ktsl7y8tiM.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language iu5J6ktsl7y8tiM.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 508 iu5J6ktsl7y8tiM.exe 508 iu5J6ktsl7y8tiM.exe 4684 powershell.exe 4684 powershell.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 508 iu5J6ktsl7y8tiM.exe Token: SeDebugPrivilege 4684 powershell.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 4944 wrote to memory of 4684 4944 iu5J6ktsl7y8tiM.exe 89 PID 4944 wrote to memory of 4684 4944 iu5J6ktsl7y8tiM.exe 89 PID 4944 wrote to memory of 4684 4944 iu5J6ktsl7y8tiM.exe 89 PID 4944 wrote to memory of 508 4944 iu5J6ktsl7y8tiM.exe 91 PID 4944 wrote to memory of 508 4944 iu5J6ktsl7y8tiM.exe 91 PID 4944 wrote to memory of 508 4944 iu5J6ktsl7y8tiM.exe 91 PID 4944 wrote to memory of 508 4944 iu5J6ktsl7y8tiM.exe 91 PID 4944 wrote to memory of 508 4944 iu5J6ktsl7y8tiM.exe 91 PID 4944 wrote to memory of 508 4944 iu5J6ktsl7y8tiM.exe 91 PID 4944 wrote to memory of 508 4944 iu5J6ktsl7y8tiM.exe 91 PID 4944 wrote to memory of 508 4944 iu5J6ktsl7y8tiM.exe 91
Processes
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C:\Users\Admin\AppData\Local\Temp\iu5J6ktsl7y8tiM.exe"C:\Users\Admin\AppData\Local\Temp\iu5J6ktsl7y8tiM.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4944 -
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\iu5J6ktsl7y8tiM.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4684
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C:\Users\Admin\AppData\Local\Temp\iu5J6ktsl7y8tiM.exe"C:\Users\Admin\AppData\Local\Temp\iu5J6ktsl7y8tiM.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:508
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Network
MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
4Credentials In Files
3Credentials in Registry
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82