Analysis
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max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
23-05-2024 13:47
Static task
static1
Behavioral task
behavioral1
Sample
Ach_Payment_Advice01.exe
Resource
win7-20240220-en
General
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Target
Ach_Payment_Advice01.exe
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Size
689KB
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MD5
eeb0a5f2f2e765bbe937e595ddd0650a
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SHA1
2a5127e5fdf921547b4ec39e964682469573e1f6
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SHA256
2869686380724afd713bbefc58c9aceabd90692e27d9de7af96e748b3066d8e9
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SHA512
46f36ddb5d6dc37ac4d1d0388c87971933e8f8fae7de89d54483b5a900365c786b859b9b7fbd7f721a03ac03025ce800f5ee3ebcb67aa22442d8df1853456ee8
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SSDEEP
12288:c5h2Xp96Wtlc5ingN/JuXdH7O18x3UObHgf5jFuq4XQM5taSw40fgYYMiwp68kxU:c5UXfvtlc5yC/adbChYjl9c40oRwI81
Malware Config
Extracted
agenttesla
https://api.telegram.org/bot7116470912:AAFcUeHH1656vYbBtccMjQVal4iMak99ZmA/
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Processes:
Ach_Payment_Advice01.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" Ach_Payment_Advice01.exe -
Processes:
Ach_Payment_Advice01.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths Ach_Payment_Advice01.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\Ach_Payment_Advice01.exe = "0" Ach_Payment_Advice01.exe -
Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
Processes:
Ach_Payment_Advice01.exedescription ioc process Key opened \REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions Ach_Payment_Advice01.exe -
Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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Looks for VMWare Tools registry key 2 TTPs 1 IoCs
Processes:
Ach_Payment_Advice01.exedescription ioc process Key opened \REGISTRY\MACHINE\SOFTWARE\VMware, Inc.\VMware Tools Ach_Payment_Advice01.exe -
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
Ach_Payment_Advice01.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion Ach_Payment_Advice01.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion Ach_Payment_Advice01.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
Ach_Payment_Advice01.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation Ach_Payment_Advice01.exe -
Processes:
Ach_Payment_Advice01.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths Ach_Payment_Advice01.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions Ach_Payment_Advice01.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\Ach_Payment_Advice01.exe = "0" Ach_Payment_Advice01.exe -
Processes:
Ach_Payment_Advice01.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" Ach_Payment_Advice01.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA Ach_Payment_Advice01.exe -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 26 api.ipify.org 27 api.ipify.org -
Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
Processes:
Ach_Payment_Advice01.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum Ach_Payment_Advice01.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 Ach_Payment_Advice01.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Ach_Payment_Advice01.exedescription pid process target process PID 4648 set thread context of 4244 4648 Ach_Payment_Advice01.exe CasPol.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
powershell.exeCasPol.exepid process 4416 powershell.exe 4416 powershell.exe 4244 CasPol.exe 4244 CasPol.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
powershell.exeCasPol.exedescription pid process Token: SeDebugPrivilege 4416 powershell.exe Token: SeDebugPrivilege 4244 CasPol.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
CasPol.exepid process 4244 CasPol.exe -
Suspicious use of WriteProcessMemory 13 IoCs
Processes:
Ach_Payment_Advice01.exedescription pid process target process PID 4648 wrote to memory of 4416 4648 Ach_Payment_Advice01.exe powershell.exe PID 4648 wrote to memory of 4416 4648 Ach_Payment_Advice01.exe powershell.exe PID 4648 wrote to memory of 4244 4648 Ach_Payment_Advice01.exe CasPol.exe PID 4648 wrote to memory of 4244 4648 Ach_Payment_Advice01.exe CasPol.exe PID 4648 wrote to memory of 4244 4648 Ach_Payment_Advice01.exe CasPol.exe PID 4648 wrote to memory of 4244 4648 Ach_Payment_Advice01.exe CasPol.exe PID 4648 wrote to memory of 4244 4648 Ach_Payment_Advice01.exe CasPol.exe PID 4648 wrote to memory of 4244 4648 Ach_Payment_Advice01.exe CasPol.exe PID 4648 wrote to memory of 4244 4648 Ach_Payment_Advice01.exe CasPol.exe PID 4648 wrote to memory of 4244 4648 Ach_Payment_Advice01.exe CasPol.exe PID 4648 wrote to memory of 1796 4648 Ach_Payment_Advice01.exe CasPol.exe PID 4648 wrote to memory of 1796 4648 Ach_Payment_Advice01.exe CasPol.exe PID 4648 wrote to memory of 1796 4648 Ach_Payment_Advice01.exe CasPol.exe -
System policy modification 1 TTPs 1 IoCs
Processes:
Ach_Payment_Advice01.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" Ach_Payment_Advice01.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Ach_Payment_Advice01.exe"C:\Users\Admin\AppData\Local\Temp\Ach_Payment_Advice01.exe"1⤵
- UAC bypass
- Windows security bypass
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Checks computer location settings
- Windows security modification
- Checks whether UAC is enabled
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
- System policy modification
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Ach_Payment_Advice01.exe" -Force2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"2⤵
Network
MITRE ATT&CK Matrix ATT&CK v13
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
3Disable or Modify Tools
3Modify Registry
4Virtualization/Sandbox Evasion
2Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_evcp4nhy.zwt.ps1Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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memory/4244-21-0x000000007518E000-0x000000007518F000-memory.dmpFilesize
4KB
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memory/4244-32-0x000000007518E000-0x000000007518F000-memory.dmpFilesize
4KB
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memory/4244-31-0x0000000006E70000-0x0000000006E7A000-memory.dmpFilesize
40KB
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memory/4244-30-0x0000000006EE0000-0x0000000006F72000-memory.dmpFilesize
584KB
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memory/4244-29-0x0000000006DA0000-0x0000000006E3C000-memory.dmpFilesize
624KB
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memory/4244-28-0x0000000006CB0000-0x0000000006D00000-memory.dmpFilesize
320KB
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memory/4244-23-0x0000000005790000-0x00000000057F6000-memory.dmpFilesize
408KB
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memory/4244-7-0x0000000000400000-0x0000000000444000-memory.dmpFilesize
272KB
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memory/4244-22-0x0000000005C90000-0x0000000006234000-memory.dmpFilesize
5.6MB
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memory/4416-18-0x000001B460090000-0x000001B4600B2000-memory.dmpFilesize
136KB
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memory/4416-19-0x00007FFC198A0000-0x00007FFC1A361000-memory.dmpFilesize
10.8MB
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memory/4416-20-0x00007FFC198A0000-0x00007FFC1A361000-memory.dmpFilesize
10.8MB
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memory/4416-8-0x00007FFC198A0000-0x00007FFC1A361000-memory.dmpFilesize
10.8MB
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memory/4416-26-0x00007FFC198A0000-0x00007FFC1A361000-memory.dmpFilesize
10.8MB
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memory/4648-0-0x0000020A23F70000-0x0000020A23F8E000-memory.dmpFilesize
120KB
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memory/4648-6-0x0000020A3E4A0000-0x0000020A3E536000-memory.dmpFilesize
600KB
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memory/4648-27-0x00007FFC198A0000-0x00007FFC1A361000-memory.dmpFilesize
10.8MB
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memory/4648-5-0x0000020A24330000-0x0000020A24336000-memory.dmpFilesize
24KB
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memory/4648-4-0x00007FFC198A0000-0x00007FFC1A361000-memory.dmpFilesize
10.8MB
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memory/4648-3-0x0000020A3E330000-0x0000020A3E34E000-memory.dmpFilesize
120KB
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memory/4648-2-0x0000020A3E3B0000-0x0000020A3E426000-memory.dmpFilesize
472KB
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memory/4648-1-0x00007FFC198A3000-0x00007FFC198A5000-memory.dmpFilesize
8KB