Analysis
- max time kernel
150s - max time network
143s - platform
windows10-2004_x64 - resource
win10v2004-20240611-en - resource tags
arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system - submitted
12/06/2024, 01:59
Static task
static1
Behavioral task
behavioral1
Sample
aa667be19c861a59464088524698c0097d5d8a461bae61f3c5c99b4fcaef4838.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
aa667be19c861a59464088524698c0097d5d8a461bae61f3c5c99b4fcaef4838.exe
Resource
win10v2004-20240611-en
General
- Target aa667be19c861a59464088524698c0097d5d8a461bae61f3c5c99b4fcaef4838.exe
- Size 854KB
- Sample240612-cedvdaycna
- SHA256 aa667be19c861a59464088524698c0097d5d8a461bae61f3c5c99b4fcaef4838
- MD5 7c06761ac0e0ff7d288bc021187a0148
- SHA1 218930e7d5ddd01a15d4e9e36bf557380f5b674e
- SHA512 166426f0624c3e74cfcc16a01de001e8d00474fe18f53c928d966fe59af1b6e6b9ca972968284ab35cb447397f39109cbc1ad5aab25a6dafc31f19fbce61a905
- SSDEEP 24576:hg61jjk0LAta9ABDIPzDJSU93DeIdnnh/rPoMAITwNeZqhyk3E0/:CWzAEDeIhxTAIGeZqhyk0
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.musabody.com
-
Port
587
-
Username
-
Password
MUSAbody_victoria2018
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.musabody.com
-
Port
587
-
Username
-
Password
MUSAbody_victoria2018
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs
resource yara_rule behavioral2/memory/1152-10-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_EXE_Packed_GEN01 - Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
resource yara_rule behavioral2/memory/1152-10-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers - Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs
resource yara_rule behavioral2/memory/1152-10-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID - Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs
resource yara_rule behavioral2/memory/1152-10-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store - Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs
resource yara_rule behavioral2/memory/1152-10-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients - Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs
resource yara_rule behavioral2/memory/1152-10-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients - 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.
pid Process 1740 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-1-5-21-2080292272-204036150-2159171770-1000\Control Panel\International\Geo\Nation aa667be19c861a59464088524698c0097d5d8a461bae61f3c5c99b4fcaef4838.exe - Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2080292272-204036150-2159171770-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ctsdvwT = "C:\\Users\\Admin\\AppData\\Roaming\\ctsdvwT\\ctsdvwT.exe" aa667be19c861a59464088524698c0097d5d8a461bae61f3c5c99b4fcaef4838.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2440 set thread context of 1152 2440 aa667be19c861a59464088524698c0097d5d8a461bae61f3c5c99b4fcaef4838.exe 84 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2440 aa667be19c861a59464088524698c0097d5d8a461bae61f3c5c99b4fcaef4838.exe 2440 aa667be19c861a59464088524698c0097d5d8a461bae61f3c5c99b4fcaef4838.exe 1152 aa667be19c861a59464088524698c0097d5d8a461bae61f3c5c99b4fcaef4838.exe 1152 aa667be19c861a59464088524698c0097d5d8a461bae61f3c5c99b4fcaef4838.exe 1740 powershell.exe 1740 powershell.exe - Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2440 aa667be19c861a59464088524698c0097d5d8a461bae61f3c5c99b4fcaef4838.exe Token: SeDebugPrivilege 1152 aa667be19c861a59464088524698c0097d5d8a461bae61f3c5c99b4fcaef4838.exe Token: SeDebugPrivilege 1740 powershell.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1152 aa667be19c861a59464088524698c0097d5d8a461bae61f3c5c99b4fcaef4838.exe - Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 2440 wrote to memory of 1740 2440 aa667be19c861a59464088524698c0097d5d8a461bae61f3c5c99b4fcaef4838.exe 82 PID 2440 wrote to memory of 1740 2440 aa667be19c861a59464088524698c0097d5d8a461bae61f3c5c99b4fcaef4838.exe 82 PID 2440 wrote to memory of 1740 2440 aa667be19c861a59464088524698c0097d5d8a461bae61f3c5c99b4fcaef4838.exe 82 PID 2440 wrote to memory of 1152 2440 aa667be19c861a59464088524698c0097d5d8a461bae61f3c5c99b4fcaef4838.exe 84 PID 2440 wrote to memory of 1152 2440 aa667be19c861a59464088524698c0097d5d8a461bae61f3c5c99b4fcaef4838.exe 84 PID 2440 wrote to memory of 1152 2440 aa667be19c861a59464088524698c0097d5d8a461bae61f3c5c99b4fcaef4838.exe 84 PID 2440 wrote to memory of 1152 2440 aa667be19c861a59464088524698c0097d5d8a461bae61f3c5c99b4fcaef4838.exe 84 PID 2440 wrote to memory of 1152 2440 aa667be19c861a59464088524698c0097d5d8a461bae61f3c5c99b4fcaef4838.exe 84 PID 2440 wrote to memory of 1152 2440 aa667be19c861a59464088524698c0097d5d8a461bae61f3c5c99b4fcaef4838.exe 84 PID 2440 wrote to memory of 1152 2440 aa667be19c861a59464088524698c0097d5d8a461bae61f3c5c99b4fcaef4838.exe 84 PID 2440 wrote to memory of 1152 2440 aa667be19c861a59464088524698c0097d5d8a461bae61f3c5c99b4fcaef4838.exe 84
Processes
-
C:\Users\Admin\AppData\Local\Temp\aa667be19c861a59464088524698c0097d5d8a461bae61f3c5c99b4fcaef4838.exe"C:\Users\Admin\AppData\Local\Temp\aa667be19c861a59464088524698c0097d5d8a461bae61f3c5c99b4fcaef4838.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2440 -
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\aa667be19c861a59464088524698c0097d5d8a461bae61f3c5c99b4fcaef4838.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1740
-
-
C:\Users\Admin\AppData\Local\Temp\aa667be19c861a59464088524698c0097d5d8a461bae61f3c5c99b4fcaef4838.exe"C:\Users\Admin\AppData\Local\Temp\aa667be19c861a59464088524698c0097d5d8a461bae61f3c5c99b4fcaef4838.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1152
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_r3fsua4q.vl1.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- MD5 SHA1 SHA512