Analysis
- max time kernel
127s - max time network
133s - 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, 01:01
Static task
static1
Behavioral task
behavioral1
Sample
041a1ee7a56393de29118086e1f2e2432d865e156150a46ad8ef2c64e0becdc6.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
041a1ee7a56393de29118086e1f2e2432d865e156150a46ad8ef2c64e0becdc6.exe
Resource
win10v2004-20240611-en
General
- Target 041a1ee7a56393de29118086e1f2e2432d865e156150a46ad8ef2c64e0becdc6.exe
- Size 43KB
- Sample240612-bdmv8axbrf
- SHA256 041a1ee7a56393de29118086e1f2e2432d865e156150a46ad8ef2c64e0becdc6
- MD5 dc1dd88b7a15113f358444dc2aaf4498
- SHA1 26c5703f7c1754113c0863cd88d3263feb4a1ed2
- SHA512 af666d03d5ac90f2fc5279297715029157bd59d424a1fa9f82ccc62b8fb5a2aad2c9caa1aa9a375ffd918920587a632668dae535a7a87320d69e81738aa6e470
- SSDEEP 768:+EhL3rhZYVqxns//Jheq87k35oSP8dSNoR7BUhl9GSycicoN9Nh:HhL3rhyzJL87k35oSPHm7BUh28icoHNh
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
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agenttesla
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Protocol
smtp
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Host
mail.freehostia.com
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Port
587
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Username
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Password
Fineboy777@
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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/2680-4901-0x0000000000400000-0x0000000000440000-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/2680-4901-0x0000000000400000-0x0000000000440000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers - Detects executables packed with SmartAssembly 1 IoCs
resource yara_rule behavioral2/memory/2108-1-0x00000000005F0000-0x0000000000602000-memory.dmp INDICATOR_EXE_Packed_SmartAssembly - Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs
resource yara_rule behavioral2/memory/2680-4901-0x0000000000400000-0x0000000000440000-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/2680-4901-0x0000000000400000-0x0000000000440000-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/2680-4901-0x0000000000400000-0x0000000000440000-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/2680-4901-0x0000000000400000-0x0000000000440000-memory.dmp INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients - 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-1-5-21-3665033694-1447845302-680750983-1000\Control Panel\International\Geo\Nation 041a1ee7a56393de29118086e1f2e2432d865e156150a46ad8ef2c64e0becdc6.exe - Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- 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-1-5-21-3665033694-1447845302-680750983-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Frifjl = "C:\\Users\\Admin\\AppData\\Roaming\\Frifjl.exe" 041a1ee7a56393de29118086e1f2e2432d865e156150a46ad8ef2c64e0becdc6.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2108 set thread context of 2680 2108 041a1ee7a56393de29118086e1f2e2432d865e156150a46ad8ef2c64e0becdc6.exe 89 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Gathers network information 2 TTPs 2 IoCs
Uses commandline utility to view network configuration.
pid Process 3516 ipconfig.exe 5020 ipconfig.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2680 041a1ee7a56393de29118086e1f2e2432d865e156150a46ad8ef2c64e0becdc6.exe 2680 041a1ee7a56393de29118086e1f2e2432d865e156150a46ad8ef2c64e0becdc6.exe - Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2108 041a1ee7a56393de29118086e1f2e2432d865e156150a46ad8ef2c64e0becdc6.exe Token: SeDebugPrivilege 2108 041a1ee7a56393de29118086e1f2e2432d865e156150a46ad8ef2c64e0becdc6.exe Token: SeDebugPrivilege 2680 041a1ee7a56393de29118086e1f2e2432d865e156150a46ad8ef2c64e0becdc6.exe - Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 2108 wrote to memory of 3276 2108 041a1ee7a56393de29118086e1f2e2432d865e156150a46ad8ef2c64e0becdc6.exe 86 PID 2108 wrote to memory of 3276 2108 041a1ee7a56393de29118086e1f2e2432d865e156150a46ad8ef2c64e0becdc6.exe 86 PID 2108 wrote to memory of 3276 2108 041a1ee7a56393de29118086e1f2e2432d865e156150a46ad8ef2c64e0becdc6.exe 86 PID 3276 wrote to memory of 5020 3276 cmd.exe 88 PID 3276 wrote to memory of 5020 3276 cmd.exe 88 PID 3276 wrote to memory of 5020 3276 cmd.exe 88 PID 2108 wrote to memory of 2680 2108 041a1ee7a56393de29118086e1f2e2432d865e156150a46ad8ef2c64e0becdc6.exe 89 PID 2108 wrote to memory of 2680 2108 041a1ee7a56393de29118086e1f2e2432d865e156150a46ad8ef2c64e0becdc6.exe 89 PID 2108 wrote to memory of 2680 2108 041a1ee7a56393de29118086e1f2e2432d865e156150a46ad8ef2c64e0becdc6.exe 89 PID 2108 wrote to memory of 2680 2108 041a1ee7a56393de29118086e1f2e2432d865e156150a46ad8ef2c64e0becdc6.exe 89 PID 2108 wrote to memory of 2680 2108 041a1ee7a56393de29118086e1f2e2432d865e156150a46ad8ef2c64e0becdc6.exe 89 PID 2108 wrote to memory of 2680 2108 041a1ee7a56393de29118086e1f2e2432d865e156150a46ad8ef2c64e0becdc6.exe 89 PID 2108 wrote to memory of 2680 2108 041a1ee7a56393de29118086e1f2e2432d865e156150a46ad8ef2c64e0becdc6.exe 89 PID 2108 wrote to memory of 2680 2108 041a1ee7a56393de29118086e1f2e2432d865e156150a46ad8ef2c64e0becdc6.exe 89 PID 2108 wrote to memory of 4520 2108 041a1ee7a56393de29118086e1f2e2432d865e156150a46ad8ef2c64e0becdc6.exe 90 PID 2108 wrote to memory of 4520 2108 041a1ee7a56393de29118086e1f2e2432d865e156150a46ad8ef2c64e0becdc6.exe 90 PID 2108 wrote to memory of 4520 2108 041a1ee7a56393de29118086e1f2e2432d865e156150a46ad8ef2c64e0becdc6.exe 90 PID 4520 wrote to memory of 3516 4520 cmd.exe 92 PID 4520 wrote to memory of 3516 4520 cmd.exe 92 PID 4520 wrote to memory of 3516 4520 cmd.exe 92
Processes
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C:\Users\Admin\AppData\Local\Temp\041a1ee7a56393de29118086e1f2e2432d865e156150a46ad8ef2c64e0becdc6.exe"C:\Users\Admin\AppData\Local\Temp\041a1ee7a56393de29118086e1f2e2432d865e156150a46ad8ef2c64e0becdc6.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2108 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ipconfig /release2⤵
- Suspicious use of WriteProcessMemory
PID:3276 -
C:\Windows\SysWOW64\ipconfig.exeipconfig /release3⤵
- Gathers network information
PID:5020
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C:\Users\Admin\AppData\Local\Temp\041a1ee7a56393de29118086e1f2e2432d865e156150a46ad8ef2c64e0becdc6.exe"C:\Users\Admin\AppData\Local\Temp\041a1ee7a56393de29118086e1f2e2432d865e156150a46ad8ef2c64e0becdc6.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2680
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ipconfig /renew2⤵
- Suspicious use of WriteProcessMemory
PID:4520 -
C:\Windows\SysWOW64\ipconfig.exeipconfig /renew3⤵
- Gathers network information
PID:3516
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4380,i,18320353784098040629,17273168055569331828,262144 --variations-seed-version --mojo-platform-channel-handle=4368 /prefetch:81⤵PID:4888