Analysis
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max time kernel
126s -
max time network
18s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
28-09-2024 21:52
Static task
static1
Behavioral task
behavioral1
Sample
Outstanding Invoices.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
Outstanding Invoices.exe
Resource
win10v2004-20240802-en
General
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Target
Outstanding Invoices.exe
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Size
755KB
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MD5
8535be06fe3da04495faaffaf0212462
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SHA1
b7df2c69caaffc15c9750c37dd81b7d4912684ab
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SHA256
defbf133c9e7d72102fde035e692158815cf0312c4f96535777e7bbeecd3a796
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SHA512
9fcaf27b08e89f90a21f3d38bf96f570c11892c23c68fc6a2cfce68f92216f1b024b70d5cd3333d789fcc32583f21e21ca301e389c97ffaae4aa5728829d92b4
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SSDEEP
12288:tmgb/7vGkeafY+56Yot8zpoEHQmNqzXJZNhjN16U22d97rHcRiK1CDN3/YMYo9WO:tlvQafY+MdAppHQ1jjN1TS0
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.shirdilog.com - Port:
587 - Username:
[email protected] - Password:
SL094521
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection Outstanding Invoices.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1" Outstanding Invoices.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1" Outstanding Invoices.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1" Outstanding Invoices.exe -
AgentTesla payload 5 IoCs
resource yara_rule behavioral1/memory/2676-34-0x0000000000400000-0x0000000000466000-memory.dmp family_agenttesla behavioral1/memory/2676-33-0x0000000000400000-0x0000000000466000-memory.dmp family_agenttesla behavioral1/memory/2676-32-0x0000000000400000-0x0000000000466000-memory.dmp family_agenttesla behavioral1/memory/2676-29-0x0000000000400000-0x0000000000466000-memory.dmp family_agenttesla behavioral1/memory/2676-27-0x0000000000400000-0x0000000000466000-memory.dmp family_agenttesla -
Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions Outstanding Invoices.exe -
Looks for VMWare Tools registry key 2 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\VMware, Inc.\VMware Tools Outstanding Invoices.exe -
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion Outstanding Invoices.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion Outstanding Invoices.exe -
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 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
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description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features Outstanding Invoices.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0" Outstanding Invoices.exe -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Outstanding Invoices.exe Key opened \REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Outstanding Invoices.exe Key opened \REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Outstanding Invoices.exe -
Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum Outstanding Invoices.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 Outstanding Invoices.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2532 set thread context of 2676 2532 Outstanding Invoices.exe 35 -
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 5 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 schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Outstanding Invoices.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language REG.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Outstanding Invoices.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe -
Modifies registry key 1 TTPs 1 IoCs
pid Process 2172 REG.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 548 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 7 IoCs
pid Process 2532 Outstanding Invoices.exe 2532 Outstanding Invoices.exe 2532 Outstanding Invoices.exe 2688 powershell.exe 2532 Outstanding Invoices.exe 2676 Outstanding Invoices.exe 2676 Outstanding Invoices.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2532 Outstanding Invoices.exe Token: SeDebugPrivilege 2688 powershell.exe Token: SeDebugPrivilege 2676 Outstanding Invoices.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2676 Outstanding Invoices.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 2532 wrote to memory of 2688 2532 Outstanding Invoices.exe 30 PID 2532 wrote to memory of 2688 2532 Outstanding Invoices.exe 30 PID 2532 wrote to memory of 2688 2532 Outstanding Invoices.exe 30 PID 2532 wrote to memory of 2688 2532 Outstanding Invoices.exe 30 PID 2532 wrote to memory of 548 2532 Outstanding Invoices.exe 33 PID 2532 wrote to memory of 548 2532 Outstanding Invoices.exe 33 PID 2532 wrote to memory of 548 2532 Outstanding Invoices.exe 33 PID 2532 wrote to memory of 548 2532 Outstanding Invoices.exe 33 PID 2532 wrote to memory of 2676 2532 Outstanding Invoices.exe 35 PID 2532 wrote to memory of 2676 2532 Outstanding Invoices.exe 35 PID 2532 wrote to memory of 2676 2532 Outstanding Invoices.exe 35 PID 2532 wrote to memory of 2676 2532 Outstanding Invoices.exe 35 PID 2532 wrote to memory of 2676 2532 Outstanding Invoices.exe 35 PID 2532 wrote to memory of 2676 2532 Outstanding Invoices.exe 35 PID 2532 wrote to memory of 2676 2532 Outstanding Invoices.exe 35 PID 2532 wrote to memory of 2676 2532 Outstanding Invoices.exe 35 PID 2532 wrote to memory of 2676 2532 Outstanding Invoices.exe 35 PID 2676 wrote to memory of 2172 2676 Outstanding Invoices.exe 37 PID 2676 wrote to memory of 2172 2676 Outstanding Invoices.exe 37 PID 2676 wrote to memory of 2172 2676 Outstanding Invoices.exe 37 PID 2676 wrote to memory of 2172 2676 Outstanding Invoices.exe 37 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Outstanding Invoices.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Outstanding Invoices.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Outstanding Invoices.exe"C:\Users\Admin\AppData\Local\Temp\Outstanding Invoices.exe"1⤵
- Modifies Windows Defender Real-time Protection settings
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Windows security modification
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2532 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell" Get-MpPreference -verbose2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2688
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vhSYPjucLyLrlP" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD6EE.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:548
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C:\Users\Admin\AppData\Local\Temp\Outstanding Invoices.exe"C:\Users\Admin\AppData\Local\Temp\Outstanding Invoices.exe"2⤵
- Accesses Microsoft Outlook profiles
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:2676 -
C:\Windows\SysWOW64\REG.exeREG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer / v NoRun / t REG_DWORD / d 1 / f3⤵
- System Location Discovery: System Language Discovery
- Modifies registry key
PID:2172
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Network
MITRE ATT&CK Enterprise v15
Persistence
Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Impair Defenses
2Disable or Modify Tools
2Modify Registry
3Virtualization/Sandbox Evasion
2Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
5Credentials In Files
4Credentials in Registry
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD59e633df5f1d4b41413f7f74993afab3d
SHA1759ef8d424efa1f838a0cfb4e4fec54ca0820782
SHA256748eb1ee2b3f037e2f2bbe76d4e343546d4c30316310877fbd198379b7e6f9ff
SHA51245fbb20041eb065ae72676568dbecaefd7c9e48f73bc212733bdedc591f3b05cb716433316a28700bd9f9be241f4bb00d1e305ac0221562937a32a60477b5d3f