Analysis
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max time kernel
140s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20231130-en -
resource tags
arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system -
submitted
09-12-2023 02:06
Static task
static1
Behavioral task
behavioral1
Sample
6517be0ad6c3d08f0a7643268e616400ca30fff6fef58c823d6b4c05c838b634.exe
Resource
win7-20231130-en
Behavioral task
behavioral2
Sample
6517be0ad6c3d08f0a7643268e616400ca30fff6fef58c823d6b4c05c838b634.exe
Resource
win10v2004-20231130-en
General
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Target
6517be0ad6c3d08f0a7643268e616400ca30fff6fef58c823d6b4c05c838b634.exe
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Size
658KB
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MD5
b087af830bd6a458dfcb3d2f84c1d33a
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SHA1
0a631f914b663df5e8d8a1fce9acd6efe47d52a9
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SHA256
6517be0ad6c3d08f0a7643268e616400ca30fff6fef58c823d6b4c05c838b634
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SHA512
cce3562355f91603e135808ea89587ef4968ad5ee9f0c4aa0b2a736fe0e31174d66bd6ff2c68acfbd3219c8e71ee3791c4ff47c184150fa96e68406822b09de7
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SSDEEP
12288:j1hkZ5OkjA7iqT/1jeFSTz+OWNtBPL6KLlgJIn5Wn+fPEFFSfC4V:BK/SiC/1aFSMnLkJInE26ofCW
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.tecnosilos.com.py - Port:
587 - Username:
[email protected] - Password:
dX,@;SPvm;h{ - 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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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-1-5-21-596315103-1488671723-776734015-1000\Control Panel\International\Geo\Nation 6517be0ad6c3d08f0a7643268e616400ca30fff6fef58c823d6b4c05c838b634.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1580 set thread context of 2792 1580 6517be0ad6c3d08f0a7643268e616400ca30fff6fef58c823d6b4c05c838b634.exe 102 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
pid pid_target Process procid_target 3220 2792 WerFault.exe 102 -
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4432 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 4548 powershell.exe 4548 powershell.exe 2792 MSBuild.exe 2792 MSBuild.exe 2792 MSBuild.exe 4548 powershell.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4548 powershell.exe Token: SeDebugPrivilege 2792 MSBuild.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 1580 wrote to memory of 4548 1580 6517be0ad6c3d08f0a7643268e616400ca30fff6fef58c823d6b4c05c838b634.exe 98 PID 1580 wrote to memory of 4548 1580 6517be0ad6c3d08f0a7643268e616400ca30fff6fef58c823d6b4c05c838b634.exe 98 PID 1580 wrote to memory of 4548 1580 6517be0ad6c3d08f0a7643268e616400ca30fff6fef58c823d6b4c05c838b634.exe 98 PID 1580 wrote to memory of 4432 1580 6517be0ad6c3d08f0a7643268e616400ca30fff6fef58c823d6b4c05c838b634.exe 100 PID 1580 wrote to memory of 4432 1580 6517be0ad6c3d08f0a7643268e616400ca30fff6fef58c823d6b4c05c838b634.exe 100 PID 1580 wrote to memory of 4432 1580 6517be0ad6c3d08f0a7643268e616400ca30fff6fef58c823d6b4c05c838b634.exe 100 PID 1580 wrote to memory of 2792 1580 6517be0ad6c3d08f0a7643268e616400ca30fff6fef58c823d6b4c05c838b634.exe 102 PID 1580 wrote to memory of 2792 1580 6517be0ad6c3d08f0a7643268e616400ca30fff6fef58c823d6b4c05c838b634.exe 102 PID 1580 wrote to memory of 2792 1580 6517be0ad6c3d08f0a7643268e616400ca30fff6fef58c823d6b4c05c838b634.exe 102 PID 1580 wrote to memory of 2792 1580 6517be0ad6c3d08f0a7643268e616400ca30fff6fef58c823d6b4c05c838b634.exe 102 PID 1580 wrote to memory of 2792 1580 6517be0ad6c3d08f0a7643268e616400ca30fff6fef58c823d6b4c05c838b634.exe 102 PID 1580 wrote to memory of 2792 1580 6517be0ad6c3d08f0a7643268e616400ca30fff6fef58c823d6b4c05c838b634.exe 102 PID 1580 wrote to memory of 2792 1580 6517be0ad6c3d08f0a7643268e616400ca30fff6fef58c823d6b4c05c838b634.exe 102 PID 1580 wrote to memory of 2792 1580 6517be0ad6c3d08f0a7643268e616400ca30fff6fef58c823d6b4c05c838b634.exe 102
Processes
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C:\Users\Admin\AppData\Local\Temp\6517be0ad6c3d08f0a7643268e616400ca30fff6fef58c823d6b4c05c838b634.exe"C:\Users\Admin\AppData\Local\Temp\6517be0ad6c3d08f0a7643268e616400ca30fff6fef58c823d6b4c05c838b634.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1580 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\OrWrIEyWG.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4548
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OrWrIEyWG" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8434.tmp"2⤵
- Creates scheduled task(s)
PID:4432
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2792 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2792 -s 14203⤵
- Program crash
PID:3220
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 2792 -ip 27921⤵PID:3252
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD5b273cb5dba61e2d752eccc8030387bb7
SHA125b6a0a7079326fe56e23483abec4ec675967233
SHA2565bb2ec41229f34f94767923f2564bb9380f6f06e116565b6d16778e05e824044
SHA5120d16d88538478288dcc079e4a36b661d15f42b6960e205b8384ea93821e302c316098cdb5d61b5af3d6da267545e35afa15497976a22b83da26a332655f418e5