Analysis
- max time kernel
136s - max time network
125s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
21/05/2024, 01:35
General
- Target f872e441743cc9c85aa611b5060dd2d5b392adf20eae28ff57716a4a64dc96b5.exe
- Size 1.0MB
- Sample240521-bz4qvsed21
- SHA256 f872e441743cc9c85aa611b5060dd2d5b392adf20eae28ff57716a4a64dc96b5
Malware Config
Extracted
-
Protocol
ftp
-
Host
ftp.skitz.com.ng
-
Port
21
-
Username
-
Password
Kosyano1@
Extracted
-
agenttesla
-
Protocol
ftp
-
Host
ftp://ftp.skitz.com.ng
-
Port
21
-
Username
-
Password
Kosyano1@
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- 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.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Uses the VBS compiler for execution 1 TTPs
- Adds Run key to start application 2 TTPs 1 IoCs
- Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 15 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\f872e441743cc9c85aa611b5060dd2d5b392adf20eae28ff57716a4a64dc96b5.exe"C:\Users\Admin\AppData\Local\Temp\f872e441743cc9c85aa611b5060dd2d5b392adf20eae28ff57716a4a64dc96b5.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
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\f872e441743cc9c85aa611b5060dd2d5b392adf20eae28ff57716a4a64dc96b5.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\kcSwhKQEcnmk.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\kcSwhKQEcnmk" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD3AB.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scripting
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Replay Monitor
Loading Replay Monitor...
Downloads
powershell.exe.log
__PSScriptPolicyTest_edkubtlh.zyg.ps1
tmpD3AB.tmp
memory/1104-48-0x0000000000400000-0x0000000000442000-memory.dmp
memory/1104-92-0x00000000067D0000-0x0000000006820000-memory.dmp
memory/3328-84-0x0000000007970000-0x000000000798A000-memory.dmp
memory/3328-81-0x0000000007830000-0x0000000007841000-memory.dmp
memory/3328-80-0x00000000078B0000-0x0000000007946000-memory.dmp
memory/3328-77-0x0000000007C70000-0x00000000082EA000-memory.dmp
memory/3328-78-0x0000000007630000-0x000000000764A000-memory.dmp
memory/3328-55-0x0000000075950000-0x000000007599C000-memory.dmp
memory/3328-54-0x00000000072D0000-0x0000000007302000-memory.dmp
memory/3328-82-0x0000000007860000-0x000000000786E000-memory.dmp
memory/3328-47-0x00000000750F0000-0x00000000758A0000-memory.dmp
memory/3328-42-0x0000000005D00000-0x0000000006054000-memory.dmp
memory/3328-90-0x00000000750F0000-0x00000000758A0000-memory.dmp
memory/3328-26-0x00000000750F0000-0x00000000758A0000-memory.dmp
memory/3328-21-0x00000000750F0000-0x00000000758A0000-memory.dmp
memory/4160-17-0x00000000750F0000-0x00000000758A0000-memory.dmp
memory/4160-22-0x0000000004A70000-0x0000000004A92000-memory.dmp
memory/4160-23-0x0000000004B10000-0x0000000004B76000-memory.dmp
memory/4160-19-0x00000000750F0000-0x00000000758A0000-memory.dmp
memory/4160-89-0x00000000750F0000-0x00000000758A0000-memory.dmp
memory/4160-18-0x0000000004FE0000-0x0000000005608000-memory.dmp
memory/4160-85-0x0000000007190000-0x0000000007198000-memory.dmp
memory/4160-46-0x00000000750F0000-0x00000000758A0000-memory.dmp
memory/4160-24-0x0000000004B80000-0x0000000004BE6000-memory.dmp
memory/4160-76-0x0000000006B40000-0x0000000006BE3000-memory.dmp
memory/4160-83-0x00000000070B0000-0x00000000070C4000-memory.dmp
memory/4160-52-0x0000000006070000-0x00000000060BC000-memory.dmp
memory/4160-51-0x0000000005B20000-0x0000000005B3E000-memory.dmp
memory/4160-16-0x0000000002200000-0x0000000002236000-memory.dmp
memory/4160-53-0x0000000006AE0000-0x0000000006B12000-memory.dmp
memory/4160-56-0x0000000075950000-0x000000007599C000-memory.dmp
memory/4160-79-0x0000000006EE0000-0x0000000006EEA000-memory.dmp
memory/4160-71-0x0000000006B20000-0x0000000006B3E000-memory.dmp
memory/5264-15-0x00000000750FE000-0x00000000750FF000-memory.dmp
memory/5264-9-0x0000000005600000-0x0000000005684000-memory.dmp
memory/5264-8-0x0000000006620000-0x0000000006630000-memory.dmp
memory/5264-10-0x0000000005730000-0x00000000057CC000-memory.dmp
memory/5264-7-0x0000000006600000-0x000000000660C000-memory.dmp
memory/5264-6-0x0000000008C80000-0x0000000008CA2000-memory.dmp
memory/5264-5-0x00000000750F0000-0x00000000758A0000-memory.dmp
memory/5264-50-0x00000000750F0000-0x00000000758A0000-memory.dmp
memory/5264-4-0x0000000002E00000-0x0000000002E0A000-memory.dmp
memory/5264-0-0x00000000750FE000-0x00000000750FF000-memory.dmp
memory/5264-3-0x0000000007A20000-0x0000000007AB2000-memory.dmp
memory/5264-20-0x00000000750F0000-0x00000000758A0000-memory.dmp
memory/5264-2-0x0000000007F30000-0x00000000084D4000-memory.dmp
memory/5264-1-0x0000000000A40000-0x0000000000B44000-memory.dmp