Analysis
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max time kernel
120s -
max time network
136s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
01-10-2024 08:04
Static task
static1
Behavioral task
behavioral1
Sample
scan_file34975UU.scr.exe
Resource
win7-20240903-en
General
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Target
scan_file34975UU.scr.exe
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Size
748KB
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MD5
9c41200534d2961710d7686f23fd8853
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SHA1
e427669e7752d41b7a833c796bb4028f7260f04d
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SHA256
b066d69e936c241d52a4dc708223002e8843385d5e04faece3016abd4027c215
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SHA512
32bb1f6f63734451652f65cff8d0acf9b61a8037c27570d73fb4a1b022d3fe046f9b71135741357dfcfc9733656cff5ed8d02c55b949accce718a7dd17fcd8fc
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SSDEEP
12288:5697qm4w3LOFEQ+0/Vl4L29bhHxe4io6l7EOfhiaaE5qIGkR:Y2mJ3RKjFVwl4+nqId
Malware Config
Extracted
agenttesla
Protocol: ftp- Host:
ftp://ftp.fosna.net - Port:
21 - Username:
[email protected] - Password:
(=8fPSH$KO_!
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 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 2632 powershell.exe 2628 powershell.exe -
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 2 ip-api.com -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2676 set thread context of 1976 2676 scan_file34975UU.scr.exe 37 -
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 5 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 scan_file34975UU.scr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language scan_file34975UU.scr.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1300 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2676 scan_file34975UU.scr.exe 2676 scan_file34975UU.scr.exe 1976 scan_file34975UU.scr.exe 1976 scan_file34975UU.scr.exe 2628 powershell.exe 2632 powershell.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 2676 scan_file34975UU.scr.exe Token: SeDebugPrivilege 1976 scan_file34975UU.scr.exe Token: SeDebugPrivilege 2628 powershell.exe Token: SeDebugPrivilege 2632 powershell.exe -
Suspicious use of WriteProcessMemory 25 IoCs
description pid Process procid_target PID 2676 wrote to memory of 2632 2676 scan_file34975UU.scr.exe 30 PID 2676 wrote to memory of 2632 2676 scan_file34975UU.scr.exe 30 PID 2676 wrote to memory of 2632 2676 scan_file34975UU.scr.exe 30 PID 2676 wrote to memory of 2632 2676 scan_file34975UU.scr.exe 30 PID 2676 wrote to memory of 2628 2676 scan_file34975UU.scr.exe 32 PID 2676 wrote to memory of 2628 2676 scan_file34975UU.scr.exe 32 PID 2676 wrote to memory of 2628 2676 scan_file34975UU.scr.exe 32 PID 2676 wrote to memory of 2628 2676 scan_file34975UU.scr.exe 32 PID 2676 wrote to memory of 1300 2676 scan_file34975UU.scr.exe 34 PID 2676 wrote to memory of 1300 2676 scan_file34975UU.scr.exe 34 PID 2676 wrote to memory of 1300 2676 scan_file34975UU.scr.exe 34 PID 2676 wrote to memory of 1300 2676 scan_file34975UU.scr.exe 34 PID 2676 wrote to memory of 1928 2676 scan_file34975UU.scr.exe 36 PID 2676 wrote to memory of 1928 2676 scan_file34975UU.scr.exe 36 PID 2676 wrote to memory of 1928 2676 scan_file34975UU.scr.exe 36 PID 2676 wrote to memory of 1928 2676 scan_file34975UU.scr.exe 36 PID 2676 wrote to memory of 1976 2676 scan_file34975UU.scr.exe 37 PID 2676 wrote to memory of 1976 2676 scan_file34975UU.scr.exe 37 PID 2676 wrote to memory of 1976 2676 scan_file34975UU.scr.exe 37 PID 2676 wrote to memory of 1976 2676 scan_file34975UU.scr.exe 37 PID 2676 wrote to memory of 1976 2676 scan_file34975UU.scr.exe 37 PID 2676 wrote to memory of 1976 2676 scan_file34975UU.scr.exe 37 PID 2676 wrote to memory of 1976 2676 scan_file34975UU.scr.exe 37 PID 2676 wrote to memory of 1976 2676 scan_file34975UU.scr.exe 37 PID 2676 wrote to memory of 1976 2676 scan_file34975UU.scr.exe 37
Processes
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C:\Users\Admin\AppData\Local\Temp\scan_file34975UU.scr.exe"C:\Users\Admin\AppData\Local\Temp\scan_file34975UU.scr.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2676 -
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\scan_file34975UU.scr.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2632
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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\JhrcdGxufUIh.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2628
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\JhrcdGxufUIh" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC11D.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:1300
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C:\Users\Admin\AppData\Local\Temp\scan_file34975UU.scr.exe"C:\Users\Admin\AppData\Local\Temp\scan_file34975UU.scr.exe"2⤵PID:1928
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C:\Users\Admin\AppData\Local\Temp\scan_file34975UU.scr.exe"C:\Users\Admin\AppData\Local\Temp\scan_file34975UU.scr.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1976
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Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
2Credentials In Files
2Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD52d8cc84a097ab2fec19fb95a0a900080
SHA19c77f2d87ab9c9e126cc4ede39fd56e99390f605
SHA2569cdd5f3c8d1d5af552c27cb7d07f4779e1c03e857c31e60d8294c068e8727bea
SHA512cf288bd97ca7faef56bfd20e09a877c78f540961703ab729078280700d1786fffa924acc5076108e0bf68b06d4afae95386253ebc8b65eba090c00245074b901
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\EQ2DVKEEY9RGWG1WO6ZB.temp
Filesize7KB
MD5b1a5cf115b4949301995a69e717148f8
SHA13bec6363909fff491995dd2fe9f0ab02f8c83395
SHA256493ebf716acab807a04e025d315763a08938f69b4dd04339e6a284d04b0f131d
SHA512b46910da4a7298f0a630c8764a04451a78974b843386016522ef9822332e6abc954eb3c8cbf8ffd4621c0554f1a5492e301710432b25cfc860a12a500aa80fff